Kyushu University Academic Staff Educational and Research Activities Database
List of Papers
Hiroyuki Furuta Last modified date:2019.06.19

Professor / Applied Fine Chemistry / Department of Applied Chemistry / Faculty of Engineering

1. Yemei Wang, Koya Uchihara, Shigeki Mori, Hiroyuki Furuta, Soji Shimizu, 1,3-Dithiole-2-one-Fused Subphthalocyanine and Subporphyrazine
Synthesis and Properties Arising from the 1,3-Dithiole-2-one Units, Organic Letters, 10.1021/acs.orglett.9b00752, 21, 9, 3103-3107, 2019.05, Subphthalocyanine (SubPc) and its benzo ring-removed analogue, subporphyrazine (SubPz), bearing 1,3-dithiole-2-one (S
CO) groups as a new class of substituents were synthesized. In addition to the perturbed optical properties due to the presence of electron-withdrawing S
CO units, the deep bowl-shaped structure of the SubPz derivative allowed concave-convex interaction to form a unique co-crystal structure with C
. Finally, using the reactivity of the peripheral S
CO units, S
CO-fused SubPc was successfully converted into tetrathiafulvalene (TTF)-annulated SubPc in a yield higher than that of the direct synthesis from a TTF-fused phthalonitrile..
2. Shota Ooi, Takayuki Tanaka, Takahisa Ikeue, Kazuhisa Yamasumi, Kento Ueta, Daiki Shimizu, Masatoshi Ishida, Hiroyuki Furuta, Atsuhiro Osuka, Bis-copper(II) Complex of Triply-linked Corrole Dimer and Its Dication, Chemistry - An Asian Journal, 10.1002/asia.201801467, 14, 10, 1771-1776, 2019.05, Copper complexes of corroles have recently been a subject of keen interest due to their ligand non-innocent character and unique redox properties. Here we investigated bis-copper complex of a triply-linked corrole dimer that serves as a pair of divalent metal ligands but can be reduced to a pair of trivalent metal ligands. Reaction of triply-linked corrole dimer 2 with Cu(acac) 2 (acac=acetylacetonate) gave bis-copper(II) complex 2Cu as a highly planar molecule with a mean-plane deviation value of 0.020 Å, where the two copper ions were revealed to be divalent by ESR, SQUID, and XPS methods. Oxidation of 2Cu with two equivalents of AgBF 4 gave complex 3Cu, which was characterized as a bis-copper(II) complex of a dicationic triply-linked corrole dimer not as the corresponding bis-copper(III) complex. In accord with this assignment, the structural parameters around the copper ions were revealed to be quite similar for 2Cu and 3Cu. Importantly, the magnetic spin–spin interaction differs depending on the redox-state of the ligand, being weak ferromagnetic in 2Cu and antiferromagnetic in 3Cu..
3. Poornenth Pushpanandan, Dong Hoon Won, Shigeki Mori, Yuhsuke Yasutake, Susumu Fukatsu, Masatoshi Ishida, Hiroyuki Furuta, Doubly N-Confused Calix[6]phyrin Bis-Organopalladium Complexes
Photostable Triplet Sensitizers for Singlet Oxygen Generation, Chemistry - An Asian Journal, 10.1002/asia.201801671, 14, 10, 1729-1736, 2019.05, Triplet photosensitizers that generate singlet oxygen efficiently are attractive for applications such as photodynamic therapy (PDT). Extending the absorption band to a near-infrared (NIR) region (700 nm≈) with reasonable photostability is one of the major demands in the rational design of such sensitizers. We herein prepared a series of mono- and bis-palladium complexes (1-Pd-H 2 , 2-Pd-H 2 , 1-Pd-Pd, and 2-Pd-Pd) based on modified calix[6]phyrins as photosensitizers for singlet oxygen generation. These palladium complexes showed intense absorption profiles in the visible-to-NIR region (500–750 nm) depending on the number of central metals. Upon photoirradiation in the presence of 1,5-dihydroxynaphthalene (DHN) as a substrate for reactive oxygen species, the bis-palladium complexes generated singlet oxygen with high efficiency and excellent photostability. Singlet oxygen generation was confirmed from the characteristic spectral feature of the spin trapped complex in the EPR spectrum and the intact 1 O 2 emission at 1270 nm..
4. Masaya Fukuda, Shigeki Mori, Hiroyuki Furuta, Soji Shimizu, N-Confused Porphyrin-aza-Dipyrrin Chimera
A Versatile Metal Coordination Ligand Using its Unique NH Tautomerism, Chemistry - An Asian Journal, 10.1002/asia.201801750, 14, 10, 1697-1702, 2019.05, A novel N-confused porphyrin (NCP) analogue bearing an external aza-dipyrrin-like coordination site was synthesized by a Schiff-base forming reaction of N-confused oxoporphyrin and 2-aminopyridine derivatives. The chimera molecule enhances the intrinsic NH tautomerism of NCP to enable four possible tautomeric structures, three of which were identified by metal coordination..
5. Yemei Wang, Koya Uchihara, Shigeki Mori, Hiroyuki Furuta, Soji Shimizu, 1,3-Dithiole-2-one-Fused Subphthalocyanine and Subporphyrazine
Synthesis and Properties Arising from the 1,3-Dithiole-2-one Units, Organic Letters, 10.1021/acs.orglett.9b00752, 2019.04, Subphthalocyanine (SubPc) and its benzo ring-removed analogue, subporphyrazine (SubPz), bearing 1,3-dithiole-2-one (S2CO) groups as a new class of substituents were synthesized. In addition to the perturbed optical properties due to the presence of electron-withdrawing S2CO units, the deep bowl-shaped structure of the SubPz derivative allowed concave-convex interaction to form a unique co-crystal structure with C60. Finally, using the reactivity of the peripheral S2CO units, S2CO-fused SubPc was successfully converted into tetrathiafulvalene (TTF)-annulated SubPc in a yield higher than that of the direct synthesis from a TTF-fused phthalonitrile..
6. Yufeng Yang, Masatoshi Ishida, Yuhsuke Yasutake, Susumu Fukatsu, Chihoko Fukakusa, Masa-Aki Morikawa, Teppei Yamada, Nobuo Kimizuka, Hiroyuki Furuta, Hierarchical Hybrid Metal-Organic Frameworks
Tuning the Visible/Near-Infrared Optical Properties by a Combination of Porphyrin and Its Isomer Units, Inorganic Chemistry, 10.1021/acs.inorgchem.9b00251, 58, 7, 4647-4656, 2019.04, Hybrid metal-organic frameworks (MOFs) with core/shell-like hierarchical structure comprised of zirconium metal and porphyrin (e.g., TPP) and its isomer, N-confused porphyrin (NCP), were synthesized through a seed-mediated reaction. The hierarchical structures of hybrid MOFs were characterized by the microscopic image analyses (e.g., scanning electron microscope (SEM), energy dispersive X-ray (EDX) spectrometry, and confocal laser scanning microscope (CLSM)). Taking advantage of the intrinsic light-harvesting properties of the porphyrin dye and the N-confused isomer, changing the core/shell layer structures of hybrid MOFs allows for tuning of the visible-to-near-infrared (NIR) absorption/emission characters, excited-state energy migrations, and photosensitization capabilities. The Förster energy transfer event occurring in the bulk MOF samples by photoexcitation enabled us to control the photoinduced singlet oxygen generation through the comprehensive light-harvesting ability of these hybrid porphyrinic MOFs. Therefore, implementation of a precisely designed porphyrin "substitute" into the MOF-based materials indeed provides a new mimic of the photosynthetic pigment system and should be potentially applicable for solar-light-driven devices..
7. Qizhao Li, Chengjie Li, Jinseok Kim, Masatoshi Ishida, Xin Li, Tingting Gu, Xu Liang, Weihua Zhu, Ågren Hans, Dongho Kim, Hiroyuki Furuta, Yongshu Xie, Regioselectively Halogenated Expanded Porphyrinoids as Building Blocks for Constructing Porphyrin-Porphyrinoid Heterodyads with Tunable Energy Transfer, Journal of the American Chemical Society, 10.1021/jacs.8b13148, 141, 13, 5294-5302, 2019.04, Expanded porphyrins have been attracting increasing attention owing to their unique optical and electrochemical properties as well as switchable aromaticity. Toward material applications, regioselective functionalization of the expanded porphyrins at their periphery is indeed challenging due to the presence of multiple reactive sites. Herein, a set of regioselective halogenated isomers (L5-Br-A/B/C) of neo-confused isosmaragdyrin (L5) are synthesized by a combination of the halogenation reaction of L5 and sequential macrocycle-to-macrocycle transformation reactions of its halogenated isomers. On this basis, the regioselectively functionalized isosmaragdyrins are utilized as building blocks for constructing multichromophoric porphyrinoids, specifically, heterodyads L5-ZnP-A/B/C, in which a common zinc porphyrin is linked at three different pyrrolic positions of isosmaragdyrins, respectively, by Sonogashira coupling reactions. The highly efficient energy cascade from porphyrin to isosmaragdyrin is elucidated using steady-state/time-resolved spectroscopies and theoretical calculations. Notably, the energy transfer processes from the porphyrin to the isosmaragdyrin moieties as well as the excitation energy transfer rates in L5-ZnP-A/B/C are highly dependent on the linking sites by through-bond and Förster-type resonance energy transfer mechanisms. The site-selective functionalization and subsequent construction of a set of heterodyads of the expanded porphyrinoid would provide opportunities for developing new materials for optoelectronic applications..
8. Qizhao Li, Masatoshi Ishida, Hiroto Kai, Tingting Gu, Chengjie Li, Xin Li, Glib Baryshnikov, Xu Liang, Weihua Zhu, Ågren Hans, Hiroyuki Furuta, Yongshu Xie, Skeletal Rearrangement of Twisted Thia-Norhexaphyrin
Multiply Annulated Polypyrrolic Aromatic Macrocycles, Angewandte Chemie - International Edition, 10.1002/anie.201900010, 2019.03, A hybrid thia-norhexaphyrin comprising a directly linked N-confused pyrrole and thiophene unit (1) revealed unique macrocycle transformations to afford multiply inner-annulated aromatic macrocycles. Oxidation with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone triggered a cleavage of the C-S bond of the thiophene unit, accompanied with skeletal rearrangement to afford unique π-conjugated products: a thiopyrrolo-pentaphyrin embedded with a pyrrolo[1,2]isothiazole (2), a sulfur-free pentaphyrin incorporating an indolizine moiety (3), and a thiopyranyltriphyrinoid containing a 2H-thiopyran unit (4). Furthermore, 2 underwent desulfurization reactions to afford a fused pentaphyrin containing a pyrrolizine moiety (5) under mild conditions. Using expanded porphyrin scaffolds, oxidative thiophene cleavage and desulfurization of the hitherto unknown N-confused core-modified macrocycles would be a practical approach for developing unique polypyrrolic aromatic macrocycles..
9. Neha Manav, Praseetha E Kesavan, Masatoshi Ishida, Shigeki Mori, Yuhsuke Yasutake, Susumu Fukatsu, Hiroyuki Furuta, Iti Gupta, Phosphorescent rhenium-dipyrrinates
efficient photosensitizers for singlet oxygen generation, Dalton Transactions, 10.1039/c8dt04540b, 48, 7, 2467-2478, 2019.02, A series of rhenium(i) dipyrrinato complexes (Re1-Re8) have been prepared and characterized; their crystal structures, phosphorescence and singlet oxygen generation studies are reported. The aromatic substituents, such as thienyl, p-bromophenyl, p-fluorophenyl, m-fluorophenyl, pentaflurophenyl, N-butylcarbazole, N-phenylcarbazole, and N-butylphenothiazine, are linked to the C5 position of Re-dipyrrinates. Varying the electronic nature of the substituents from electron donating (e.g., carbazole) to electron withdrawing (e.g., pentaflurophenyl) allowed the change in the structural, electrochemical, and spectroscopic properties of these complexes. In particular, the rhenium dipyrrinates showed phosphorescence in the near IR region with sufficiently longer triplet state lifetimes (τT = 9-29 μs). Also, a large Stokes shift (Δν = 5682-6957 cm-1) was witnessed for all the rhenium dipyrrinates. Triplet emission was reflected in the efficient singlet oxygen generation yields (ΦΔ ∼ 0.75-0.98) along with the distinct photo-stability. Density functional theory (DFT) calculations revealed that the electron density is spread over the dipyrrin unit in most complexes. Rhenium dipyrrinate having a phenothiazine substituent exhibited the smallest HOMO-LUMO band gap (2.820 eV) among all Re-complexes..
10. Jayaprakash Ajay, Sriram Shirisha, Masatoshi Ishida, Kosuke Ito, Shigeki Mori, Hiroyuki Furuta, Sabapathi Gokulnath, Planar Antiaromatic Core-Modified 24π Hexaphyrin( and 32π Octaphyrin( Bearing Alternate Hybrid Diheterole Units, Chemistry - A European Journal, 10.1002/chem.201805861, 25, 11, 2859-2867, 2019.02, The Lewis acid catalyzed self-condensation of hybrid diheterole (furan-pyrrole and thiophene-pyrrole) precursors has afforded novel Hückel antiaromatic 24π hexaphyrin( and 32π octaphyrin( structures without β-annulated bridges. Single-crystal X-ray diffraction analysis of the hybrid porphyrinoids (S
-ox and O
-ox) revealed a nearly planar conformation and the
H NMR spectra suggest the presence of paratropic ring currents. These antiaromatic macrocycles show characteristic optical features and underwent reversible two-electron reduction to Hückel aromatic 26π- and 34π-electron species, respectively, as is evident from the results of spectroscopic and theoretical studies (nucleus-independent chemical shift (NICS) and anisotropy of the current-induced density (ACID) calculations). The incorporation of hybrid diheteroles alternately into expanded porphyrin skeletons provides a novel approach to the fine-tuning of the electronic structures of planar antiaromatic macrocycles..
11. Takaaki Miyazaki, Kazuki Fukuyama, Shunichi Mashita, Yuya Deguchi, Takaaki Yamamoto, Masatoshi Ishida, Shigeki Mori, Hiroyuki Furuta, Ruthenium N-Confused Porphyrins
Selective Reactivity for Ambident 2-Heteroatom-Substituted Pyridines Serving as Axial Ligands, ChemPlusChem, 10.1002/cplu.201800630, 2019.01, Three types of ruthenium(II) N-confused porphyrin (NCP) complexes bearing an axial 2-thiopyridine, 2-pyridone, and 2-iminopyridine moiety at the inner carbon atom, respectively, were synthesized. The unique reactivity of the 2-substituted pyridine derivatives (2-X-pyridine; X=SH, OH, NH
) toward the inner carbon atom of the NCP allows the formation of two types of coordinated products (i. e., pyridine donor versus 2-heteroatom donors), as inferred from single-crystal X-ray structures. The selective reactivity was investigated by using density functional theory (DFT) calculations. Finally, the catalytic activity of these ruthenium complexes was demonstrated through the styrene oxidation reactions. As a result, the ruthenium(II) NCP complex bearing a 2-thiopyridine moiety, together with aqueous H
as an oxidant showed the highest selectivity for benzaldehyde (benzaldehyde/styrene oxide=20 : 1)..
12. Ryusei Tsuruga, Narumi Uehara, Yuki Suzuki, Hiroyuki Furuta, Hiroshi Sugiyama, Masayuki Endo, Shigeyoshi Matsumura, Yoshiya Ikawa, Oligomerization of a modular ribozyme assembly of which is controlled by a programmable RNA–RNA interface between two structural modules, Journal of Bioscience and Bioengineering, 10.1016/j.jbiosc.2019.04.003, 2019.01, Bimolecular ribozymes derived by physical dissection of unimolecular ribozymes consisting of two structural modules are promising platforms for the design and construction of assembled RNA nanostructures. Unit RNAs to be assembled intermolecularly into one-dimensional (1D) oligomers are designed by reconnecting the two structural modules in a manner different from the parent ribozymes. This strategy was applied to the Tetrahymena group I ribozyme. We constructed 1D ribozyme oligomers the assembly of which was observed by atomic force microscopy (AFM) and also controlled rationally to design a heterooctamer by differentiating the interface between the two modules..
13. Akihide Nishiyama, Masaya Fukuda, Shigeki Mori, Ko Furukawa, Heike Fliegl, Hiroyuki Furuta, Soji Shimizu, Rational Synthesis of Antiaromatic 5,15-Dioxaporphyrin and Oxidation into β,β-Linked Dimers, Angewandte Chemie - International Edition, 10.1002/anie.201804648, 57, 31, 9728-9733, 2018.07, 5,15-Dioxaporphyrin was synthesized for the first time by a nucleophilic aromatic substitution reaction of a nickel bis(α,α′-dibromodipyrrin) complex with benzaldoxime, followed by an intramolecular annulation of the α-hydroxy-substituted intermediate. This unprecedented molecule is a 20π-electron antiaromatic system, in terms of Hückel's rule of aromaticity, because lone pair electrons of oxygen atoms are incorporated into the 18π-electron conjugated system of the porphyrin. A theoretical analysis based on the gauge-including magnetically induced current method confirmed its antiaromaticity and a dominant inner ring pathway for the ring current. The unique reactivity of 5,15-dioxaporphyrin forming a β,β-linked dimer upon oxidation was also revealed..
14. Akihide Nishiyama, Masaya Fukuda, Shigeki Mori, Ko Furukawa, Heike Fliegl, Hiroyuki Furuta, Soji Shimizu, Rational Synthesis of Antiaromatic 5,15-Dioxaporphyrin and Oxidation into β,β-Linked Dimers, Angewandte Chemie - International Edition, 10.1002/anie.201804648, 57, 31, 9728-9733, 2018.07, 5,15-Dioxaporphyrin was synthesized for the first time by a nucleophilic aromatic substitution reaction of a nickel bis(α,α'-dibromodipyrrin) complex with benzaldoxime, followed by an intramolecular annulation of the α-hydroxy-substituted intermediate. This unprecedented molecule is a 20π-electron antiaromatic system, in terms of Hückel's rule of aromaticity, because lone pair electrons of oxygen atoms are incorporated into the 18π-electron conjugated system of the porphyrin. A theoretical analysis based on the gauge-including magnetically induced current method confirmed its antiaromaticity and a dominant inner ring pathway for the ring current. The unique reactivity of 5,15-dioxaporphyrin forming a β,β-linked dimer upon oxidation was also revealed..
15. Yogesh Kumar Maurya, Katsuya Noda, Kazuhisa Yamasumi, Shigeki Mori, Tomoki Uchiyama, Kazutaka Kamitani, Tomoyasu Hirai, Kakeru Ninomiya, Maiko Nishibori, Yuta Hori, Yoshihito Shiota, Kazunari Yoshizawa, Masatoshi Ishida, Hiroyuki Furuta, Ground-State Copper(III) Stabilized by N-Confused/N-Linked Corroles
Synthesis, Characterization, and Redox Reactivity, Journal of the American Chemical Society, 10.1021/jacs.8b01876, 140, 22, 6883-6892, 2018.06, Stable square planar organocopper(III) complexes (CuNCC2, CuNCC4, and CuBN) supported by carbacorrole-based tetradentate macrocyclic ligands with NNNC coordination cores were synthesized, and their structures were elucidated by spectroscopic means including X-ray crystallographic analysis. On the basis of their distinct planar structures, X-ray absorption/photoelectron spectroscopic features, and temperature-independent diamagnetic nature, these organocopper complexes can be preferably considered as novel organocopper(III) species. The remarkable stability of the high-valent Cu(III) states of the complexes stems from the closed-shell electronic structure derived from the peculiar NNNC coordination of the corrole-modified frameworks, which contrasts with the redox-noninnocent radical nature of regular corrole copper(II) complexes with an NNNN core. The proposed structure was supported by DFT (B3LYP) calculations. Furthermore, a π-laminated dimer architecture linked through the inner carbons was obtained from the one-electron oxidation of CuNCC4. We envisage that the precise manipulation of the molecular orbital energies and redox profiles of these organometallic corrole complexes could eventually lead to the isolation of yet unexplored high-valent metal species and the development of their organometallic reactions..
16. Saki Inuzuka, Hitoshi Kakizawa, Kei Ichiro Nishimura, Takuto Naito, Katsushi Miyazaki, Hiroyuki Furuta, Shigeyoshi Matsumura, Yoshiya Ikawa, Recognition of cyclic-di-GMP by a riboswitch conducts translational repression through masking the ribosome-binding site distant from the aptamer domain, Genes to Cells, 10.1111/gtc.12586, 23, 6, 435-447, 2018.06, The riboswitch is a class of RNA-based gene regulatory machinery that is dependent on recognition of its target ligand by RNA tertiary structures. Ligand recognition is achieved by the aptamer domain, and ligand-dependent structural changes of the expression platform then usually mediate termination of transcription or translational initiation. Ligand-dependent structural changes of the aptamer domain and expression platform have been reported for several riboswitches with short (<40 nucleotides) expression platforms. In this study, we characterized structural changes of the Vc2 c-di-GMP riboswitch that represses translation of downstream open reading frames in a ligand-dependent manner. The Vc2 riboswitch has a long (97 nucleotides) expression platform, but its structure and function are largely unknown. Through mutational analysis and chemical probing, we identified its secondary structures that are possibly responsible for switch-OFF and switch-ON states of translational initiation..
17. Yutaka Hisamune, Taeyeon Kim, Keiichi Nishimura, Masatoshi Ishida, Motoki Toganoh, Shigeki Mori, Dongho Kim, Hiroyuki Furuta, Switch-ON Near IR Fluorescent Dye Upon Protonation
Helically Twisted Bis(Boron Difluoride) Complex of π-Extended Corrorin, Chemistry - A European Journal, 10.1002/chem.201705516, 24, 18, 4628-4634, 2018.03, A novel helically twisted π-extended corrorin derivative having two boron dipyrrin (BODIPY) moieties at the periphery, a BODIPY DYEmer (6-BF2) cross-bridged with π-conjugated dipyrrinylidene unit, was synthesized and characterized. The neutral 6-BF2 is nonfluorescent due to the internal photoinduced charge transfer (CT) character in the excited state as inferred from the femtosecond transient absorption spectroscopy. However, upon protonation, the CT process is suppressed and the species H6-BF2 + becomes near infrared (IR) emissive. With the aid of rigid helical conformations in 6-BF2, the helical isomers (P- and M-forms) were resolved and their chiroptical property was investigated. The distinct circular dichroism (CD) spectral changes of the enantiomers were observed in the presence of acids, which demonstrates that 6-BF2 can be utilized for potential acid-responsive chiroptical materials..
18. Takaaki Miyazaki, Takaaki Yamamoto, Shunichi Mashita, Yuya Deguchi, Kazuki Fukuyama, Masatoshi Ishida, Shigeki Mori, Hiroyuki Furuta, N-Confused Porphyrin Metal Complexes with an Axial Pyridine Directly Tethered from an Inner Carbon
A Bioinspired Ligand as a Versatile Platform for Catalysis, European Journal of Inorganic Chemistry, 10.1002/ejic.201701494, 2018, 2, 203-207, 2018.01, Bioinspired pentadentate ligand N-confused porphyrin (NCP) bearing a 2-mercaptopyridine group and its RuII and CoIII complexes were synthesized. Their structures were revealed by single-crystal X-ray crystallographic analysis. Installation of an axial thiopyridine ligand shifts the redox potentials negatively and enhances the catalytic activity largely, which was demonstrated in the cyclopropanation reaction using the Co complex..
19. Takaaki Yamamoto, Koki Mitsuno, Shigeki Mori, Shuhei Itoyama, Yoshihito Shiota, Kazunari Yoshizawa, Masatoshi Ishida, Hiroyuki Furuta, Two Discrete RuCp* (Cp*=Pentamethylcyclopentadienyl) Binding Modes of N-Confused Porphyrins
Peripheral π Complex and Sitting Atop Ruthenocenophane Complex by Skeletal Transformation, Chemistry - A European Journal, 10.1002/chem.201801237, 2018.01, Complexation of a RuCp* cation with N-confused tetraarylporphyrins (NCPs) forms directly bound ruthenium(II) pentamethylcyclopentadienyl (Cp*) π-complex on a specific meso-aryl group (e.g., phenyl) neighboring peripheral imino nitrogen of NCPs in high yields. In contrast, in the case of NCPs bearing bulky meso-substituents (e.g., 3,5-di-tert-butylphenyl), new ruthenocenophane-like complex embedded on an N-confused calix[4]phyrin was formed through multiple C-H bond activation of methyl groups of Cp* ligand. The mechanistic insight into the formation of the ruthenocenophane was derived from DFT calculations..
20. Yuto Kage, Shigeki Mori, Marina Ide, Akinori Saeki, Hiroyuki Furuta, Soji Shimizu, Blackening of aza-BODIPY analogues by simple dimerization
Panchromatic absorption of a pyrrolopyrrole aza-BODIPY dimer, Materials Chemistry Frontiers, 10.1039/c7qm00438a, 2, 1, 112-120, 2018.01, Dimerization of the so-called pyrrolopyrrole aza-BODIPY, which is a new class of aza-BODIPY analogues exhibiting intense absorption and emission in the visible (Vis) and near infrared (NIR) region, via a bithienyl linkage led to the creation of a novel black dye with dual emission and panchromatic absorption properties in the Vis/NIR region. The role of the linkage in the dye was unambiguously elucidated by comparison of the optical properties with those of its biphenyl-linked counterpart..
21. Kazuhisa Yamasumi, Keiichi Nishimura, Yutaka Hisamune, Yusuke Nagae, Tomoki Uchiyama, Kazutaka Kamitani, Tomoyasu Hirai, Maiko Nishibori, Shigeki Mori, Satoru Karasawa, Tatsuhisa Kato, Ko Furukawa, Masatoshi Ishida, Hiroyuki Furuta, Bis-Copper(II)/π-Radical Multi-Heterospin System with Non-innocent Doubly N-Confused Dioxohexaphyrin( Ligand, Chemistry - A European Journal, 10.1002/chem.201704321, 23, 61, 15322-15326, 2017.11, A contracted doubly N-confused dioxohexaphyrin( complex consisting of two paramagnetic copper metals and open-shell π-radical ligand was synthesized as a new multi-heterospin motif. X-ray spectroscopy supported the divalent character of the inner copper centers, and electron paramagnetic resonance and magnetometric studies suggested the presence of unpaired d electrons strongly antiferromagnetically coupled with π-radicals delocalized on the macrocycle. The 25 π non-innocent dioxohexaphyrin ligand allowed the facile interconversion between antiaromatic 24 π and aromatic 26 π species, respectively, upon redox reactions..
22. Koki Mitsuno, Takafumi Yoshino, Iti Gupta, Shigeki Mori, Satoru Karasawa, Masatoshi Ishida, Hiroyuki Furuta, Doubly N-Confused [36]Octaphyrin(
Isomerization, Bis-Metal Coordination, and Topological Chirality, Angewandte Chemie - International Edition, 10.1002/anie.201708253, 56, 45, 14252-14256, 2017.11, A novel [36]octaphyrin analogue embedding two N-confused pyrrole units demonstrated unique prototropy-coupled isomerization between the Figure-of-eight and dumbbell conformers. Upon bis-metal coordination, fixation of fully π-conjugated Figure-of-eight structures was achieved as referred from the X-ray crystal structure. Chirogenesis of the helical enantiomers was proved by intense circular dichroism (CD) response in the near infrared (NIR) region..
23. Hideaki Matsuo, Motoki Toganoh, Masatoshi Ishida, Shigeki Mori, Hiroyuki Furuta, Stereoretentive Ligand Exchange Reactions of N-Fused Porphyrin Ruthenium(II) Complexes, Inorganic Chemistry, 10.1021/acs.inorgchem.7b01972, 56, 22, 13842-13851, 2017.11, The ligand exchange reactions of the ruthenium(II) complex of N-fused tetraphenylporphyrin, Ru(NFp)(CO)2Cl (2), with various anions were investigated. The chloride ligand of the isomers 2a-c was stereoretentively exchanged with bromide (Br-), iodide (I-), and acetate (AcO-) anions in toluene at 100 °C, structures of which were confirmed by 1H NMR as well as single crystal X-ray diffraction analysis. The silver (AgOAc, AgOTf) and boron (NaBPh4) reagents also afforded the corresponding stereoretentive products. On the other hand, the reaction with NaBH4 afforded the hydride complex Ru(NFp)(CO)2H (7) with low stereospecificity, showing a higher reactivity of 2c than other isomers. The ligand dissociation mechanism was proposed with the help of theoretical calculations on the plausible five-coordinated intermediates..
24. Poornenth Pushpanandan, Yogesh Kumar Maurya, Toshihiro Omagari, Ryuji Hirosawa, Masatoshi Ishida, Shigeki Mori, Yuhsuke Yasutake, Susumu Fukatsu, John Mack, Tebello Nyokong, Hiroyuki Furuta, Singly and Doubly N-Confused Calix[4]phyrin Organoplatinum(II) Complexes as Near-IR Triplet Sensitizers, Inorganic Chemistry, 10.1021/acs.inorgchem.7b02047, 56, 20, 12572-12580, 2017.10, Organoplatinum(II) complexes of calix[4]phyrin analogues, singly N-confused calix[4]phyrin (Pt-2), and doubly N-confused calix[4]phyrin (Pt-3), were synthesized and characterized. The explicit structures of these organoplatinum(II) complexes were elucidated by single-crystal X-ray diffraction and spectroscopic studies. The introduction of N-confused pyrrole rings to the parent calix[4]phyrin scaffold was found to have profound effects on the photophysical properties, such as the bathochromic shifts of both the absorption and phosphorescence maxima. The triplet excited state properties of these platinum complexes were analyzed by DFT calculations at the B3LYP level. The organoplatinum(II) complexes derived from the deformed scaffolds can serve as potent triplet sensitizers for singlet oxygen generation under aerobic conditions..
25. Ryuichi Sakashita, Yasutaka Oka, Hisanori Akimaru, Praseetha E. Kesavan, Masatoshi Ishida, Motoki Toganoh, Tomoya Ishizuka, Shigeki Mori, Hiroyuki Furuta, Tautomerism-Induced Cis-Trans Isomerization of Pyridylethenyl N-Confused Porphyrin, Journal of Organic Chemistry, 10.1021/acs.joc.7b01770, 82, 16, 8686-8696, 2017.08, Pyridylethenyl-substituted N-confused porphyrins (NCPs) were synthesized, and their cis-trans isomerization was studied. Among four possible isomers, trans-3H and cis-2H types of structures, of which aromaticity and absorption/emission properties differ largely, were isolated. The cis-isomer was largely stabilized by the intramolecular hydrogen bonding between the pyrrolic-NH and the pyridinic-N in the vicinity. The thermal cis-trans isomerization proceeded even at 30 °C, which was significantly accelerated by the pyridine added to the system. The kinetic studies revealed that the isomerization reaction was second-order and the activation energy of the thermal isomerization from cis to trans isomer was ΔG0cis→trans = 35.7 kcal/mol at 298 K, which is significantly smaller than that of Ni complex (42.3 kcal/mol). An intermolecular proton transfer induced cis-trans isomerization mechanism was proposed..
26. Takahiro Tanaka, Yusuke Hirata, Yuto Tominaga, Hiroyuki Furuta, Shigeyoshi Matsumura, Yoshiya Ikawa, Heterodimerization of Group I Ribozymes Enabling Exon Recombination through Pairs of Cooperative trans-Splicing Reactions, ChemBioChem, 10.1002/cbic.201700053, 18, 16, 1659-1667, 2017.08, Group I (GI) self-splicing ribozymes are attractive tools for biotechnology and synthetic biology. Several trans-splicing and related reactions based on GI ribozymes have been developed for the purpose of recombining their target mRNA sequences. By combining trans-splicing systems with rational modular engineering of GI ribozymes it was possible to achieve more complex editing of target RNA sequences. In this study we have developed a cooperative trans-splicing system through rational modular engineering with use of dimeric GI ribozymes derived from the Tetrahymena group I intron ribozyme. The resulting pairs of ribozymes exhibited catalytic activity depending on their selective dimerization. Rational modular redesign as performed in this study would facilitate the development of sophisticated regulation of double or multiple trans-splicing reactions in a cooperative manner..
27. Jiaying Yan, Yufeng Yang, Masatoshi Ishida, Shigeki Mori, Bao Zhang, Yaqing Feng, Hiroyuki Furuta, Organometallic Group 11 (CuIII, AgIII, AuIII) Complexes of a trans-Doubly N-Confused Porphyrin
An “Expanded Imidazole” Structural Motif, Chemistry - A European Journal, 10.1002/chem.201701958, 23, 47, 11375-11384, 2017.08, Complexation of group 11 metal cations with an α-bis(phenylthio)-substituted trans-doubly N-confused porphyrin (trans-N2CPSPh: 4) afforded a series of square-planar trivalent organometallic complexes (i.e., Cu-H4, Ag-H4, and Au-H4). The X-ray crystal structures of the complexes revealed highly planar core geometries along with the presence of peripheral amine and imine nitrogen sites of the pyrrolic moieties. NMR, UV/Vis absorption, and magnetic circular dichroism (MCD) spectroscopies suggested the 18 π-electron aromaticity of the complexes. The aromaticity was also fully analyzed by various theoretical methodologies such as nucleus-independent chemical shift (NICS) and anisotropic induced current density (ACID) calculations. The central metal affects the amphiprotic character of the complexes possessing both pyrrolic amino nitrogen and imino nitrogen atoms at the periphery, which was examined by the photometric titration with trifluoroacetic acid (TFA) and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), respectively. The inherent acidity of the complexes was followed in the order; Cu-H4>Au-H4>Ag-H4 and that of basicity was Au-H4>Ag-H4>Cu-H4. The complexes could be considered as an “expanded imidazole” structural motif..
28. Fumiya Iizuka, Yuto Kage, Nagao Kobayashi, Hiroyuki Furuta, Soji Shimizu, Phenylene-Bridged Expanded Porphyrazines, ChemPlusChem, 10.1002/cplu.201600482, 82, 7, 1021-1024, 2017.08, Novel expanded porphyrazines comprising o- and p-phenylene units were synthesized from self-condensation reactions of acyclic [2+1]-type precursors prepared from 1,3-diiminoisoindoline and the corresponding phenylenediamines. Möbius and Hückel topological structures of [4+2]-type and [3+2]-type expanded porphyrazines, respectively, were elucidated by X-ray crystallography. Despite the Möbius and Hückel [4n]π-electron systems, these expanded porphyrazines are virtually nonaromatic as a result of their flexible structures in solution, which may diminish intrinsic aromaticity and antiaromaticity..
29. Sudipta Das, Haamid R. Bhat, Naresh Balsukuri, Prakash C. Jha, Yutaka Hisamune, Masatoshi Ishida, Hiroyuki Furuta, Shigeki Mori, Iti Gupta, Donor-acceptor type A2B2 porphyrins
Synthesis, energy transfer, computational and electrochemical studies, Inorganic Chemistry Frontiers, 10.1039/c6qi00558f, 4, 4, 618-638, 2017.04, A series of donor-acceptor type trans-A2B2 porphyrins and their Zn(ii) and Pd(ii) complexes 5-13 have been synthesized and characterized by various spectroscopic techniques. The effect of the donor moieties (e.g., N-butylcarbazole, N-butylphenothiazine, and triphenylamine) on the spectroscopic properties of the porphyrins has been studied. The structural changes indeed affected the optical and electrochemical properties of these porphyrins. Higher energy shifts of the Soret bands were observed for porphyrins upon varying the donor moieties. The electrochemical studies of all the derivatives indicated increased interactions between the donor groups and the porphyrin core, which in turn are reflected in the anodic shifts in their reduction potentials. Both steady-state and time-resolved fluorescence studies revealed effective energy transfer (EET; up to 87%) from donor groups to the porphyrin core in the porphyrins, 5-10. The palladium(ii) porphyrin complexes, 11-13, showed characteristic phosphorescence in the near IR region. Density functional theory (DFT) studies support the presence of donor-acceptor interaction between the porphyrin core and the meso-substituents in the dyads. Density functional theory (DFT) and time dependent-density functional theory (TD-DFT) studies showed that in 5, 8 and 11, the transitions are of π → π∗ type; whereas in the other molecules viz.6, 7, 9, 10, 12 and 13 intramolecular charge transfer (ICT) is involved in all the respective highest intensity absorption transitions..
30. Sessler, Jonathan L, Gross, Zeev, Furuta, Hiroyuki, Introduction: Expanded, Contracted, and Isomeric Porphyrins, CHEMICAL REVIEWS, 10.1021/acs.chemrev.7b00036, 117, 4, 2201-2202, 2017.02.
31. Sudipta Das, Haamid R, Bhat, Naresh Balsukuri, Prakash C. Jha, Yutaka Hisamune, Masatoshi Ishida, Furuta, Hiroyuki, Shigeki Mori, Iti Gupta, Donor-Acceptor Type A2B2 Porphyrins: Synthesis, Energy Transfer, Computational and Electrochemical Studies, Inorg. Chem. Front., 10.1039/C6QI00558F, 4, 618-638, 2017.01.
32. Yufeng Yang, Xin Wu, Nathalie Busschaert, Hiroyuki Furuta, Philip A. Gale, Dissecting the chloride-nitrate anion transport assay, Chemical Communications, 10.1039/c7cc04912a, 53, 66, 9230-9233, 2017.01, A systematic study of chloride vs. nitrate selectivity across six anion transporters has revealed a good correlation between the selectivities of their anion binding and membrane transport properties. This work reveals the limitations of the chloride-nitrate exchange assay and shows how new approaches can be used to measure anion uniport..
33. Masamichi Tamada, Taku Iino, Yemei Wang, Marina Ide, Akinori Saeki, Hiroyuki Furuta, Nagao Kobayashi, Soji Shimizu, Facile synthesis of dimeric aza-BODIPY analogues from electron-deficient bislactams and their intriguing optical and electrochemical properties, Tetrahedron Letters, 10.1016/j.tetlet.2017.06.088, 58, 32, 3151-3154, 2017, Electron-deficient bislactams, isoindigo and benzodipyrrolidone, were converted into dimeric aza-BODIPY analogues by a Schiff base forming reaction. These novel aza-BODIPY analogues exhibited bathochromically-shifted absorption and anodic shifts of the reduction potentials, implying their potential application as n-type chromophores in optoelectronics..
34. Yufeng Yang, Ryuichi Sakashita, Kazuhisa Yamasumi, Masatoshi Ishida, Teppei Yamada, Hiroyuki Furuta, Zirconium-based metal-organic frameworks with N-confused porphyrins
Synthesis, structures, and optical properties, Chemistry Letters, 10.1246/cl.170461, 46, 8, 1230-1232, 2017, Metalorganic frameworks (MOFs) composed of zirconium (Zr6) and N-confused porphyrins (NCPs) were synthesized. The cubic structures with ftw topology were determined by powder X-ray diffraction and microscopic analyses. These complexes represent high chemical stability toward various pH ranges and NIR absorption/emission derived from the NCP moieties..
35. Soji Shimizu, Fumiya Iizuka, Yuto Kage, Nagao Kobayashi, Hiroyuki Furuta, Phenylene-Bridged Expanded Porphyrazines, ChemPlusChem, 2016.11.
36. Furukawa, A, Tanaka, T, Furuta, H, Matsumura, S, Ikawa, Y, Use of a Fluorescent Aptamer RNA as an Exonic Sequence to Analyze Self-Splicing Ability of a Group I Intron from Structured RNAs , Biology, 10.3390/biology5040043, 5, 43-43, 2016.11.
37. Ishida, Masatoshi, Omagari, Toshihiro, Hirosawa, Ryuji, Jono, Keisuke, Sung, Young Mo, Yasutake, Yuhsuke, Uno, Hidemitsu, Toganoh, Motoki, Nakanotani, Hajime, Fukatsu, Susumu, Kim, Dongho, Furuta, Hiroyuki, Boron Difluoride Complexes of Expanded N-Confused Calix[n]phyrins That Demonstrate Unique Luminescent and Lasing Properties, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 10.1002/anie.201606246, 55, 39, 12045-12049, 2016.09.
38. Tanaka, Takahiro, Matsumura, Shigeyoshi, Furuta, Hiroyuki, Ikawa, Yoshiya, Tecto-GIRz: Engineered Group I Ribozyme the Catalytic Ability of Which Can Be Controlled by Self-Dimerization, CHEMBIOCHEM, 10.1002/cbic.201600190, 17, 15, 1448-1455, 2016.08.
39. Toganoh, Motoki, Matsuo, Hideaki, Sato, Ayumi, Furuta, Hiroyuki, Ruthenocene-Type Complexes of N-Fused Porphyrins, CHEMISTRY-A EUROPEAN JOURNAL, 10.1002/chem.201600813, 22, 24, 8316-8322, 2016.06.
40. Nakano, Shota, Kage, Yuto, Furuta, Hiroyuki, Kobayashi, Nagao, Shimizu, Soji, Pyrene-Bridged Boron Subphthalocyanine Dimers: Combination of Planar and Bowl-Shaped pi-Conjugated Systems for Creating Uniquely Curved pi-Conjugated Systems, CHEMISTRY-A EUROPEAN JOURNAL, 10.1002/chem.201600548, 22, 23, 7706-7710, 2016.06.
41. Maurya, Yogesh Kumar, Ishikawa, Takahiro, Kawabe, Yasunori, Ishida, Masatoshi, Toganoh, Motoki, Mori, Shigeki, Yasutake, Y, Fukatsu, Susumu, Furuta, Hiroyuki, Near-Infrared Phosphorescent Iridium(III) Benzonorrole Complexes Possessing Pyridine-based Axial Ligands, INORGANIC CHEMISTRY, 10.1021/acs.inorgchem.6b00853, 55, 12, 6223-6230, 2016.06.
42. Zhang, K, Savage, M, Li, X, Jiang, Y, Ishida, M, Mitsuno, K, Karasawa, S, Kato, T, Zhu, W, Yang, S, Furuta, H, Xie. Y, Rational Syntheses of Helical π-Conjugated Oligopyrrins with a Bipyrrole Linkage: Geometry Control of Bis-Copper(II) Coordination, Chem. Commun., 10.1039/C6CC00707D, 52, 35148-5151, 2016.03.
43. Hong, J.-H, Aslam, A. S, Ishida, M, Mori, S, Furuta, H, Cho, D.-G, 2-(Naphthalen-1-yl)thiophene as a New Motif for Porphyrinoids: Meso-Fused Carbaporphyrin , J. Am Chem. Soc. , 10.1021/jacs.6b01063, 138, 4992-4995, 2016.02.
44. Tanaka, Takahiro; Furuta, Hiroyuki; Ikawa, Yoshiya, Installation of orthogonality to the interface that assembles two modular domains in the Tetrahymena group I ribozyme, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 10.1016/j.jbiosc.2013.10.008, 117, 4, 407-412, 2014.04.
45. Xie, Yongshu; Wei, Pingchun; Li, Xin; Hong, Tao; Zhang, Kai; Furuta, Hiroyuki, Macrocycle Contraction and Expansion of a Dihydrosapphyrin Isomer, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 10.1021/ja4112644, 135, 51, 19119-19122, 2013.12.
46. Gokulnath, Sabapathi; Nishimura, Keiichi; Toganoh, Motoki; Mori, Shigeki; Furuta, Hiroyuki, Palladium-Induced Pyrrolic Rearrangement of a Singly to a Doubly N-Confused [26]Hexaphyrin, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 10.1002/anie.201302955, 52, 27, 6940-6943, 2013.11.
47. Ishikawa, Junya; Furuta, Hiroyuki; Ikawa, Yoshiya, RNA Tectonics (tectoRNA) for RNA nanostructure design and its application in synthetic biology, WILEY INTERDISCIPLINARY REVIEWS-RNA, 10.1002/wrna.1185, 4, 6, 651-664, 2013.11.
48. Ikawa, Yoshiya; Touden, Satoshi; Katsumata, Sho; Furuta, Hiroyuki, Colorimetric/fluorogenic detection of thiols by N-fused porphyrin in water, BIOORGANIC & MEDICINAL CHEMISTRY, 10.1016/j.bmc.2013.08.037, 21, 21, 6501-6505, 2013.11.
49. Toganoh, Motoki; Furuta, Hiroyuki, Theoretical Study on the Conformation and Aromaticity of Regular and Singly N-Confused [28]Hexaphyrins, JOURNAL OF ORGANIC CHEMISTRY, 10.1021/jo401531w, 78, 18, 9317-9327, 2013.09.
50. Toganoh, Motoki; Matsuo, Hideaki; Sato, Ayumi; Hirashima, Yuya; Furuta, Hiroyuki, Synthesis and Isomerization of N-Fused Tetraphenylporphyrin Ruthenium(II) Complexes, INORGANIC CHEMISTRY, 10.1021/ic401314a, 52, 16, 9613-9619, 2013.08.
51. Toganoh, Motoki; Harada, Naoyuki; Furuta, Hiroyuki, Flexible coordination of hetero-scorpionate ligands composed of pyrrole/pyridines hybrid in rhenium(I) tricarbonyl complexes, POLYHEDRON, 10.1016/j.poly.2012.06.053, 52, 1153-1158, 2013.03.
52. Junya Ishikawa, Hiroyuki Furuta, Ikawa Yoshiya, An in vitro selected RNA receptor for the GAAC loop: modular receptor for non-GNRA-type tetraloop, Nucleic Acids Research, 41, 3748-3759, 2013.03.
53. Isomoto Nana, Maeda Yuri, Tanaka Takahiro, Hiroyuki Furuta, Ikawa Yoshiya, Fixation and Accumulation of Thermotolerant Catalytic Competence of a Pair of Ligase Ribozymes Through Complex Formation and Cross Ligation, JOURNAL OF MOLECULAR EVOLUTION, 10.1007/s00239-012-9536-x, 76, 1-2, 48-58, 2013.02.
54. Ikawa Yoshiya, Hiroyuki Harada, Sho Katsumata, Hiroyuki Furuta, Facile conjugation of porphyrin and N-confused porphyrin with nona-arginine peptide by click reaction, Report of the Center of Advanced Instrumental Analysis Kyushu University, 30, 1-7, 2012.12.
55. Cha Won-Young, Lim Jong Min, Yoon Min-Chul, Sung Young Mo, Lee Byung Sun, Katsumata Sho, Suzuki Masaaki, Mori Hirotaka, Ikawa Yoshiya, Hiroyuki Furuta, Osuka Atsuhiro, Kim Dongho, Deprotonation-Induced Aromaticity Enhancement and New Conjugated Networks in meso-Hexakis(pentafluorophenyl)[26]hexaphyrin, CHEMISTRY-A EUROPEAN JOURNAL, 10.1002/chem.201200991, 18, 49, 15838-15844, 2012.12.
56. Touden Satoshi, Ikawa Yoshiya, Sakashita Ryuichi, Motoki Toganoh, Mori Shigeki, Hiroyuki Furuta, Sulfur-assisted interconversion between N-confused porphyrin and N-fused porphyrin, TETRAHEDRON LETTERS, 10.1016/j.tetlet.2012.08.131, 53, 45, 6071-6074, 2012.11.
57. Takaaki Yamamoto, Motoki Toganoh, Shigeki Mori, Hidemitsu Uno, Hiroyuki Furuta, Rhenium complexes of peripherally pi-extended N-confused porphyrins, CHEMICAL SCIENCE, 10.1039/c2sc20708g, 3, 11, 3241-3248, 2012.11.
58. Yamashita Kohei, Tanaka Takahiro, Hiroyuki Furuta, Ikawa Yoshiya, TectoRNP: self-assembling RNAs with peptide recognition motifs as templates for chemical peptide ligation, JOURNAL OF PEPTIDE SCIENCE, 10.1002/psc.2444, 18, 10, 635-642, 2012.10.
59. Maira Fasciotti, Alexandre F. Gomes, Fabio C. Gozzo, Bernardo A. Iglesias, Gilberto F. de Sa, Romeu J. Daroda, Motoki Toganoh, Hiroyuki Furuta, Koiti Araki, Marcos N. Eberlin, Corrole isomers: intrinsic gas-phase shapes via traveling wave ion mobility mass spectrometry and dissociation chemistries via tandem mass spectrometry, ORGANIC & BIOMOLECULAR CHEMISTRY, 10.1039/c2ob26209f, 10, 42, 8396-8402, 2012.08.
60. Takahiro Tanaka, Hiroyuki Furuta, Ikawa Yoshiya, A two-piece derivative of a group I intron RNA as a platform for designing self-assembling RNA templates to promote peptide ligation, Journal of Nucleic Acids, 0.1155/2012/305867, 2012, 2012.08.
61. Motoki Toganoh, Yasunori Kawabe, Hidemitsu Uno, Hiroyuki Furuta, Unique Interaction between Directly Linked Laminated p Planes in the Benzonorrole Dimer, Angew. Chem. Int. Ed, 10.1002/anie.201203712, 51, 35, 8753-8756, 2012.08.
62. Iseda Kazuya, Haketa Yohei, Kokado Kenta, Maeda Hiromitsu, Hiroyuki Furuta, Sada Kazuki, Visualization of the complexation between chloride and anion receptors using volume change of ionomer gels in organic solvents, SOFT MATTER, 10.1039/c2sm25994j, 8, 28, 7490-7494, 2012.06.
63. Takaaki Yamamoto, Motoki Toganoh, Hiroyuki Furuta, Cooperation between metal and ligand in oxygen atom transport by N-confused porphyrin oxorhenium(V) complexes, DALTON TRANSACTIONS, 10.1039/c2dt30885a, 41, 30, 9154-9157, 2012.04.
64. Motoki Toganoh, Gokulnath Sabapathi, Kawabe Yasunori, Hiroyuki Furuta, Synthesis and Reactivity of 5,10,15-Triaryl Doubly N-Confused Bilanes, CHEMISTRY-A EUROPEAN JOURNAL, 10.1002/chem.201103034, 18, 14, 4380-4391, 2012.04.
65. Toganoh, M.; Yamamoto, T.; Hihara, T.; Akimaru, H.; Furuta, H. , Regulation of NH-Tautomerism in N-Confused Porphyrin by N-Alkylation , Org. Biomol. Chem. , in press. , 2012.04.
66. Gokulnath, S.; Toganoh, M.: Yamaguchi, K.; Mori, S.; Uno, H.; Furuta, H. , Confusion of Möbius Aromaticity: Disruption of Annulenic Pathway in Singly N-Confused [28]Hexaphyrin and Its Mono-Pd(II) Complex, Dalton Trans, in press, 2012.04.
67. Fujita, Y., Tanaka, T., Hiroyuki Furuta, Ikawa Yoshiya, Functional Roles of a Tetraloop/Receptor Interacting Module in a Cyclic Di-GMP Riboswitch , JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 113, 141-145, 2012.02.
68. Toganoh, M.; Gokulnath, S.; Kawabe, Y.; Furuta, H. , Synthesis and Reactivity of 5,10,15-Triaryl Doubly N-Confused Bilanes , Chem. Eur. J. , 18, 4380–4391, 2012.02.
69. Ikawa, Y.; Touden, S.; Katsumata, S.; Furuta, H. , Water-soluble N-Confused Porphyrinoids for Bio-related Chemistry , G-COE J. , 2012, 5, 6–8 ., 2012.02.
70. Fujita, Y.; Tanaka, T.; Furuta, H.; Ikawa, Y. , Functional Roles of a Tetraloop/Receptor Interacting Module in a Cyclic Di-GMP Riboswitch , J. Biosci. Bioeng. , 2012.02.
71. Motoki Toganoh, Hiroyuki Furuta, Blooming of Confused Porphyrinoid ~ Fusion, Expansion, Contraction, and More Confusion , Chem. Commun., 48, 937–954, 2012.01.
72. Kawahara, I., Haruta, K., Toki, N., Kondo, Y., Teruya, K., Ishikawa, J., Hiroyuki Furuta, Ikawa Yoshiya, Kojima, C., Tanaka, Y., Site-specific isotope labeling of long RNA for structural and mechanistic studies, 10.1093/nar/gkr951, 40, 1, 2012.01.
73. Kawahara, I.; Haruta, K.; Toki, N.; Kondo, Y.; Teruya, K.; Ishikawa, J.; Furuta, H.; Ikawa, Y.; Kojima, C.; Tanaka, Y., Site-Specific Isotope Labeling of Long RNA for Structural and Mechanistic Studies , Nucleic Acids Res., , 40, e7., 2012.01.
74. Toganoh, M.; Furuta, H., Blooming of Confused Porphyrinoid ~ Fusion, Expansion, Contraction, and More Confusion , Chem. Commun., 48, 937–954, 2012.01.
75. Yoshiya IKAWA, Satoshi TOUDEN, Hiroyuki FURUTA , N-Fused Porphyrin with Pyridinium Side-Arms: A new class of Aromatic Ligands with DNA-Binding Ability
, Org. Biomol. Chem, , Vol.9, , pp.8068-8078, , 2011.11.
76. Jong Min LIM, Iti GUPTA , Hiroyuki FURUTA, Dongho KIM , Comparative Photophysics of Sapphyrin Derivatives: Effects of Confused and Fused Pyrrole Rings on Pentapyrrolic Expanded Porphyrins
, J. Porphyrins Phthalocyanines, , Vol.15, , pp.858-864,, 2011.11.
77. Motoki TOGANOH, Yasunori KAWABE, Hiroyuki FURUTA , C-Fused Norrole: A Fused Corrole Isomer Bearing A N,C-Linked Bipyrrole Unit
, J. Org. Chem, , Vol.76, , pp.7618-7622, , 2011.11.
78. Kohei YAMASHITA, Norimasa KASHIWAGI, Hiroyuki FURUTA, Yoshiya IKAWA , Turnover Ability of a Designed RNA Acting as a Template for Chemical Peptide Ligation
, Biosci. Biotechnol. Biochem, , Vol.75, , pp.2020-2024, , 2011.09.
79. Motoki TOGANOH, Takumi TAKAYAMA, Nandy RITESH, Nobuo KIMIZUKA, Hiroyuki FURUTA , Synthesis and Properties of Acetylene-Bridged N-Confused Porphyrin Dimers
, Chem. Lett, , Vol.40, , pp.1021-1023,, 2011.07.
80. Shinya IKEDA, Motoki TOGANOH, Hiroyuki FURUTA , Synthesis, Reactivity, and Properties of N-Fused Porphyrin Manganese(I)Tricarbonyl Complexes
, Inorg. Chem, , Vol.50, , pp.6029-6043,, 2011.06.
81. Keitaro FUJINO, Yasuyuki HIRATA, Yasunori KAWABE, Tatsuki MORIMOTO, Alagar SRINIVASAN, Motoki TOGANOH , Yugo MISEKI, Akihiko KUDO, Hiroyuki FURUTA , Confusion and Neo-Confusion: New Corrole Isomers with an NNNC Core, Angew. Chem. Int. Ed, , Vol.50, , pp.6855-6859,, 2011.06.
82. Junya ISHIKAWA, Yuki FUJITA, Yuri MAEDA, Hiroyuki FURUTA, Yoshiya IKAWA, GNRA/Receptor Interacting Modules: Versatile Modular Units for Natural and Artificial RNA Architectures, Methods , Vol.54, 226-238, 2011.06.
83. Toganoh, M.; Sato, A.; Furuta, H. , Double-decker Ferrocene-type Complex of N-Fused Porphyrin: A Model of p-Extended Ferrocene?
, Angew. Chem. Int. Ed. , in press, 2011.03.
84. Gokulnath, S.; Yamaguchi, K.; Toganoh, M.; Mori, S.; Uno, H.; Furuta, H. , Singly N-Confused [26]Hexaphyrin: A Binucleating Porphyrinoid Ligand for Mixed-Metals in Different Oxidation States, Angew. Chem. Int. Ed. , in press, 2011.03.
85. Maeda, Y.; Furuta, H.; Ikawa, Y. , Trans-Acting RNAs as Molecular Probes for Monitoring Time-Dependent Structural Change of an RNA Complex Adapting Two Structures, J. Biosci. Bioeng., in press, 2011.03.
86. Ikeda, S.; Toganoh, M.; Easwaramoorthi, S.; Lim, J. M.; Kim, D.; Furuta, H. , Synthesis and Photophysical Properties of N-Fused Tetraphenylporphyrin Derivatives: Near-Infrared Organic Dye of [18]Annulenic Compounds, J. Org. Chem., in press, 2010.11.
87. Toganoh, M.; Furuta, H., Theoretical study on conformation and electronic state of Hükel-aromatic multiply N-confused [26]hexaphyrins, J. Org. Chem., in press, 2010.11.
88. Fujita, Y.; Ishikawa, J.; Furuta, H.; Ikawa, Y., Generation and Development of RNA Ligase Ribozymes with Modular Architecture Through "Design and Selection", Molecules., in press, 2010.08.
89. Toganoh, M.; Hihara, Y.; Furuta, H., N-Heterocyclic Carbene Embedded in an N-Confused Porphyrin Framework, Inorg. Chem., in press, 2010.08.
90. Ikawa, Y.; Takeda, M.; Suzuki, M.; Osuka, A.; Furuta, H. , Water-Soluble Doubly N-Confused Hexaphyrin: A Near-IR Fluorescent Zn(II) Ion Sensor in Water , Chem. Commun. , in press, 2010.03.
91. Lim, J. M.; Lee, J. S.; Chung, H. W.; Bahng, H. W.; Yamaguchi, K.; Toganoh, M.; Furuta, H.; Kim, D., Photophysical Properties of N-confused Hexaphyrins: Effects of Confusion of Pyrrole Rings and Molecular Shape on Electronic Structures , Chem. Commun. , 46, 4357 - 4359, 2010.03.
92. Toganoh, M.; Harada, H.; Ikawa, Y.; Furuta, H. , Self-Assembly of Zn(II) Porphyrin-1,2,3-Triazole Conjugate with Alcohol Glue , Chem. Lett. , 39, 252-253, 2010.01.
93. Fujita, Y.; Furuta, H.; Ikawa, Y. , Evolutionary Optimization of a Modular Ligase Ribozyme: A Small Catalytic Unit and a Hairpin Motif Masking an Element that could Form an Inactive Structure, Nucleic Acid Res., 2010.01.
94. Ishikawa, J.;Isomoto, N.; Fujita, Y.; Furuta, H.; Ikawa, Y. , The TransDSL Ligase Ribozyme can Utilize Various Forms of Modules to Clamp Its Substrate and Enzyme Units, Biosci. Biotech. Biochem., 74, 872-874 , 2010.01.
95. Lee, J. S.; Lim, J. M.;Toganoh, M.; Furuta, H.; Kim, D. , Comparative Spectroscopic Studies on Porphyrin Derivatives: Electronic Perturbation of N-Confused and N-Fused Porphyrins, Chem. Commun., 46, 285-287., 2010.01.
96. Toganoh, M.; Furuta, H. , Theoretical Study on Rotation of Pyrrole Rings in Porphyrin and N-Confused Porphyrin, J. Phys. Chem. A., 113, 13953-13963., 2009.10.
97. Kashiwagi, N.; Yamashita, K.; Furuta, H.; Ikawa, Y., Designed RNAs with Two Peptide Binding Units as Artificial Templates for Native Chemical Ligation of RNA Binding Peptides, ChemBioChem., 10, 2745-2752., 2009.10.
98. Ishikawa, J.; Matsumura, S.; Jaegar, L.; Inoue, T.; Furuta, H.; Ikawa, Y. , Rational Optimization of the DSL Ligase Ribozyme with GNRA/Receptor Interacting Modules, Arch. Biochem. Biophys., 490, 163-170. , 2009.10.
99. Ikawa, Y.; Furuta, H.; Yamashita, K.; Kashiwagi, N., Toward a Reciprocal Evolution System between RNA and Peptides as an Artificial Model for the Early RNP World, Nucleic Acids Symp.Ser. , 53, 33-34., 2009.09.
100. Toganoh, M.; Miyachi, H.; Akimaru, H.; Ito, F.; Nagamura, T.; Furuta, H , Anion Responsive Dyad System of Porphyrin and N-Confused Porphyrin, Org. Biomol. Chem., 7, 3027-3030. , 2009.07.
101. Won, D.-H.; Toganoh, M.; Uno, H.; Furuta, H. , Pt(II) N-Confused Porphyrin: An Expanded Pyrrole That Affords Stable π-Anion, Dalton Trans., 6151-6158., 2009.05.
102. Xie, Y.-S.; Yamaguchi, K.; Toganoh, M.; Uno, H.; Suzuki, M.; Mori, S.; Saito, S.; Osuka, A.; Furuta, H., Triply N-Confused Hexaphyrins: Near-Infrared Luminescent Dyes with A Trianglular Shape, Angew. Chem. Int. Ed. , 48, 5496-5499., 2009.05.
103. Ikawa, Y.; Harada, H.; Toganoh, M.; Furuta, H. , Synthesis and Protonation Behavior of A Water-Soluble N-Fused Porphyrin: Conjugation with An Oligoarginine by Click Chemistry, Bioorg. Med. Chem. Lett. , 19, 2448-2452., 2009.05.
104. Fujita, Y.; Furuta, H.; Ikawa, Y., Tailoring RNA Modular Units on A Common Scaffold: A Modular Ribozyme with A Catalytic Unit for b-Nicotinamide Mononucleotide-activated RNA Ligation, RNA, 15, 877−888, 2009.05.
105. Toganoh, M.; Ogawa, H.; Morimoto, T.; Furuta, H. , rogrammed Asymmetrical Trimer Formation of b-Alkyl N-Confused Porphyrin Zinc(II) Complex, Supramol. Chem, 21, 452−459, 2009.05.
106. Ikawa, Y.; Harada, H.; Toganoh, M.; Furuta, H., Synthesis and Protonation Behavior of A Water-Soluble N-Fused Porphyrin: Conjugation with An Oligoarginine by Click Chemistry, Bioorg. Med. Chem. Lett, 19, 2448−2452, 2009.05.
107. Toganoh, M.; Hihara, T.; Yonekura K.; Ishikawa, Y.; Furuta, H., Synthesis and Characterization of Novel Azo-embedded N-Confused Tetraphenylporphyrin, J. Porphyrins Phthalocyanines , 13, 215−222, 2009.01.
108. Toganoh, M.; Furuta, H., New Development of Porphyrin-Boron Complex, Kagaku (Chemistry), 63, 68−69, 2008.12.
109. Toganoh, M.; Fujino, K.; Ikeda, S.; Furuta, H., Catalytic Deoxygenation of Pyridine N-Oxide with N-Fused Porphyrin Rhenium Complexes, Tetrahedron Lett. , 49, 1488−1491, 2008.12.
110. Gupta, I.; Srinivasan, A.; Morimoto, T.; Toganoh, M.; Furuta, H., N-Confused and N-Fused meso-Aryl Sapphyrins, Angew. Chem. Int. Ed, 47, 4563−4567., 2008.12.
111. Ikawa, Y.; Ogawa, H.; Harada, H.; Furuta, H., N-confused Porphyrin Possessing Glucamine-appendants: Aggregation and Acid/base Properties in Aqueous Media, Bioorg. Med. Chem. Lett, 18, 6394−6397, 2008.12.
112. Srinivasan, A.; Toganoh, M.: Niino, T.; Osuka, A.; Furuta, H., Synthesis of N-Confused Tetraphenylporphyrin Rhodium Complexes Having Versatile Metal Oxidation States, Inorg. Chem. 2008, 47, 11305−11313, 2008.10.
113. Toganoh, M.; Kimura, T.; Uno, H.; Furuta, H., Doubly N-Fused Porphyrin, Angew. Chem. Int. Ed, 47, 8113−8916, 2008.10.
114. Ikawa, Y.; Moriyama, S.; Harada, H.; Furuta, H., Acid-Base Properties and DNA-Binding of Water Soluble N-Confused Porphyrins with Cationic Side-Arms, Org. Biomol. Chem, 6, 4157−4166, 2008.10.
115. Ishikawa, J.; Furuta, H.; Ikawa, Y., Mutation Analysis of the Base-pair Connecting Two Functional Modules in the DSL Ribozyme, Nucleic Acids Symp. Ser, 52, 523−524, 2008.09.
116. Toganoh, M.; Harada, N.; Furuta, H., Hydrogen-bonding Network in New Scorpionate-type Ligand Composed of Pyridine/Pyrrole Hybrid and Anion-binding Behavior of the Corresponding Rhodium Complexes in Alkyne Cyclotrimerization Reaction, J. Organomet. Chem, 693, 3141−3150, 2008.09.
117. Toganoh, M.; Niino, T.; Furuta, H, Luminescent Au(III) Organometallic Complex of N-Confused Tetraphenylporphyrin, Chem. Commun, 4070 - 4072, 2008.07.
118. Muranaka, A.; Homma, S.; Maeda, H.; Furuta, H.; Kobayashi, N., Detection of Unusual DHOMO < DLUMO Relationship in Tetrapyrrolic cis- and trans-Doubly N-Confused Porphyrins, Chem. Phys. Lett, 460, 495−498, 2008.07.
119. Won, D.-H.; Toganoh, M.; Terada, Y.; Fukatsu, S.; Uno, H.; Furuta, H., Near-Infrared Emission from Bis-PtII Complexes of Doubly N-Confused Calix[6]phyrins( , Angew. Chem. Int. Ed, 47, 5438−5441, 2008.07.
120. Ikawa, Y.; Moriyama, S.; Furuta, H., Facile Syntheses of BODIPY Derivatives for Fluorescent Labeling of the 3’ and 5’ Ends of RNAs, Anal. Biochem., 378, 166−170, 2008.07.
121. Ishizuka, T.; Ikeda, S.; Toganoh, M.; Yoshida, I.; Ishikawa, Y.; Osuka, A.; Furuta, H. , Substitution, Dimerization, Metallation, and Ring-opening Reactions of N-Fused Porphyrins, Tetrahedron , 64, 4037−4050, 2008.04.
122. Furuta, H.; Nanami, H.; Morimoto, T.; Král, V.; Ogawa, T.; Sessler, J.L.; Lynch, V. , Halide Anion Mediated Dimerization of a meso-Unsubstituted N-Confused Porphyrin, Chem. Asian J. , 3, 592–599, 2008.01.
123. Toganoh, M.; Kimura, T.; Furuta, H. , Endocyclic Extension of Porphyrin π-System in Etheno-bridged N-Confused Tetraphenylporphyrin, Chem. Commun., 102–104, 2008.01.
124. Fukuchi, M.; Takegoshi, K.; Ishizuka, T.; Furuta, H. , 15N Solid-NMR and and X-ray Diffraction Studies of N-Confused Porphyrins, Magn. Reson. Chem. , 45, s56–s60, 2007.07.
125. Kashiwagi, N.; Furuta, H.; Ikawa, Y., Design and Analysis of a Structural RNA that Act as a Template for Peptide Ligation, Nucleic Acids Symp. Ser. , 51, 387–388, 2007.06.
126. Moriyama, S.; Ikawa, Y.; Furuta, H., Synthesis of a Water Soluble N-Confused Porphyrin and its Interaction with Nucleic Acids, Nucleic Acids Symp. Ser. , 51, 207–208, 2007.06.
127. Toganoh, M.; Ikeda, S.; Furuta, H. , Synthesis, Reactivity, and Properties of N-Fused Porphyrin Rhenium(I) Tricarbonyl Complexes , Inorg. Chem. , 46, 10003–10015., 2007.06.
128. Ryu, J.-H.; Ito, F.; Nagamura, T.; Nakamura, K.; Furuta, H.; Shibata, Y.; Ito, S. , Excited-State Dynamics of Normal and Doubly N-Confused Type Hexaphyrin Derivatives Studied by Time-Resolved Fluorescence Measurements , Chem. Phys. Lett. , 443, 274–279, 2007.05.
129. Ishizuka, T.; Yamasaki, H.; Osuka, A.; Furuta, H. , Syntheses of Aryl- and Arylethynyl-Substituted N-Confused Porphyrins , Tetrahedron , 63, 5137–5147., 2007.05.
130. Morimoto, T.; Furuta, H., Supramolecular Interaction of Keto-substituted Pyrroles, Supramol. Chem., 19, 493–500, 2007.05.
131. Morimoto, T.; Uno, H.; Furuta, H, Benzene Ring Trimer Interactions Modulate Supramolecular Structures, Angew. Chem. Int. Ed, (Published Online: 29 Jan 2007, DOI: 10.1002/anie.200604371), 2007.05.
132. Kashiwagi, N.; Akeda, T.; Morimoto, T.; Ishizuka, I.; Furuta, H., Synthesis and Isomerization of Imino-Fused N-Confused Porphyrin, Org. Lett., in press, 2007.01.
133. Toganoh, M.; Harada, N.; Morimoto, T.; Furuta, H, Experimental and Theoretical Study on Oligomer Formation of N-Confused Porphyrin Zinc(II) Complexes, Chem. Eur. J., 13, 2257-2265, 2007.01.
134. Ito, F.; Nagai, T.; Ono, Y.; Yamaguchi, K.; Furuta, H.; Nagamura, T, Photophysical Properties of 2-Picolinoylpyrrole Boron Complex in Solutions, Chem. Phys. Lett., 435, 283-288, 2007.01.
135. Fujita, Y.; Furuta. H.; Ikawa, Y, Construction of an Artificial Ribozyme which Ligates an RNA Fragment Activated by Nicotinamide Mononucleotide, Nucl. Acid Res. Symp. Ser., 50, 231-232, 2006.01.
136. Toganoh, M.; Niino, T.; Maeda, H.; Andrioletti, B.; Furuta, H, Unprecedented Formation of Rhodium Cluster Triggered by Rhodium-Fastened N-Confused Gable Porphyrin, Inorg. Chem., 45, 10428-10430, 2006.01.
137. Maeda, H.; Morimoto, T.; Osuka, A.; Furuta, H, Halide Anion Binding by Singly and Doubly N-Confused Porphyrin, Chem. Asian J., 1, 832-844, 2006.01.
138. Ryu, J.-H.; Nagamura, T.; Furuta, H.; Nakamura, K, Ultrafast Optical Responses of Doubly N-Confused Hexaphyrin Derivatives with Femtosecond Laser Excitation, J. Photopolym. Sci. Technol., 19, 15-19, 2006.01.
139. Xie, Y.; Morimoto, T.; Furuta, H., Sn(IV) Complexes of N-Confused Porphyrin and N-Confused Oxoporphyrin Unique Fluorescence Switch-on Halide Receptors, Angew. Chem. Int. Ed., 45, 6907-6910, 2006.01.
140. Niino, T.; Toganoh, M.; Andrioletti, B.; Furuta, H., Rhodium N-confused Porphyrin Catalyzed Alkene Cyclopropanation, Chem. Commun., 4335-4337, 2006.01.
141. Kwon, J. H.; Ahn, T. H.; Yoon, M.-C.; Kim, D.Y.; Koh, M. Y.; Kim, D.; Furuta, H.; Suzuki, M.; Osuka, A., Comparative Photophysical Properties of Free-Base, Bis-Zn(II), Bis-Cu(II), and Bis-Co(II) Doubly N-Confused Hexaphyrins(, J. Phys. Chem. B, 110, 11683-11690, 2006.01.
142. Ono, Y.: Furuta, H., 2-Picolinoylpyrrole: A New Entry to Metal Complexing Agent, Chem. Lett, 35, 750-751, 2006.01.
143. Toganoh, M.; Konagawa, J.; Furuta, H., Bis-Iridium(I) Complex of Inverted N-Confused Porphyrin, Inorg. Chem, 45, 3852-3854, 2006.01.
144. Ryu, J.-H.; Nagamura, T.; Nagai, Y.; Matsumoto, R.; Furuta, H.; Nakamura, K., Ultrafast Responses of Doubly N-Confused Hexaphyrin Derivatives., Molecular Crystals and Liquid Crystals, 445, 249-257, 2006.01.
145. Maeda, H.; Furuta, H., A Dozen Years of N-Confusion: From Synthesis to Supramolecular Chemistry, Pure. Appl. Chem., 78, 29-44., 2006.01.
146. Suzuki, M.; Yoon, M.-C.; Kim, D. Y.; Kwon, J. H.; Furuta, H.; Kim, D.; Osuka, A., A Entry to Doubly N-Confused [26]Hexaphyrins( from Normal [26]Hexaphyrins( via Unprecedented Doubly Pyrrolic Rearrangement, Eur. J. Chem., 12, 1754-1759, 2006.01.
147. Srinivasan, A.lagar; Furuta, H., Confusion Approach in the Porphyrinoid Chemistry, Acc. Chem. Res., 10.1021/ar0302686, 38, 1, 10-20, 38, 10-20, 2005.01.
148. Mori, S.; Shun, J.-Y.; Shimizu, S.; Ishikawa, F.; Furuta, H.; Osuka, A., N-Fused Pentaphyrins and Their Rhodium Complexes: Oxidation-Induced Rhodium Rearrangement, Chem. Eur. J., 10.1002/chem.200401042, 11, 8, 2417-2425, 11, 2417-2425, 2005.01.
149. Toganoh, M.; Furuta, H., Rhenium Complexes of N-methyl N-Confused Porphyrin and Its Normal Isomer., Chem. Lett., 10.1246/cl.2005.1034, 34, 7, 1034-1035, 34, 1034-1035, 2005.01.
150. Morimoto, T.; Taniguchi, S.; Osuka, A.; Furuta, H., N-Confused Porphine, Eur. J. Org. Chem., 10.1002/ejoc.200500485, 18, 3887-3890, 3887-3890, 2005.01.
151. Toganoh, M; Ikeda, S.; Furuta, H., Re(VII) Complex of N-Fused Tetraphenylporphyrin Ligand, Chem. Commun., 10.1039/b508208k, 36, 4589-4591, 4589-4591, 2005.01.
152. Toganoh, M.; Ishizuka, T.; Furuta, H., Synthesis and Properties of Rhenium Tricarbonyl Complex Bearing N-fused Tetraphenylporphyrin Ligand, Chem. Commun., 10.1039/b406234e, 21, 2464-2465, 2464-2465, 2004.01.
153. Ishizuka, T.; Osuka, A.; Furuta, H., Inverted N-confused Porphyrin Dimer, Angew. Chem. Int. Ed., 10.1002/anie.200460017, 43, 38, 5077-5081, 43, 5077-5081, 2004.01.
154. Maeda, H.; Furuta, H., N-confused Porphyrins as New Scaffolds for Supramolecular Architecture, J. Porphyrins Phthalocyanines, 8, 1-3, 67-75, 8, 67-75, 2004.01.
155. Yoshimoto, S.; Inukai, J.; Tada, A.; Abe, T.; Itaya, K.; Morimoto, T.; Osuka A.; Furuta, H., Adlayer Structures and Electrochemical Reduction for O2 of Co(II)Porphine and Co(II) Octaethyl Porphine on Au(III) in HClO4, J. Phys. Chem. B, 108, 1948-1954, 2004.01.
156. Maeda, H.; Osuka, A.; Furuta, H., Synthesis of A2B2 type cis-doubly N-confused porphyrins from N-confused dipyrromethanes, Tetrahedron, 10.1016/j.tet.2003.12.051, 60, 10, 2427-2432, 60, 2427-2432, 2004.01.
157. Furuta, H.; Morimoto, T.; Osuka, A., Structures and Ligand Exchange of N-Confused Porphyrin Complexes with Group 12 Metals, Inorg. Chem., 10.1021/ic035294e, 43, 5, 1618-1624, 43, 1618-1624., 2004.01.
158. Srinivasan, A.; Ishizuka, T.; Furuta, H., Doubly N-Fused Pentaphyrin, Angew. Chem. Int. Ed., 10.1002/anie.200352946, 43, 7, 876-879, 43, 876-879, 2004.01.
159. Maeda, H.; Osuka, A.; Furuta, H., Anion Binding Properties of N-Confused Porphyrins at the Peripheral Nitrogen, J. Incl. Phenom., 10.1023/B:JIPH.0000031110.42096.d3, 49, 1-2, 33-36, 2004.01.
160. Maeda, H.; Ishikawa, Y.; Matsuda, T.; Osuka, A.; Furuta, H., Controll of Cu(II) and Cu(II) States in N-confused Porphyrin by Protonation /Deprotonation at the Peripheral Nitrogen, J. Am. Chem. Soc., 10.1021/ja0356075, 125, 39, 11822-11823, 125, 11822-11823, 2003.01.
161. Maeda, H.: Osuka, A.; Furuta, H., 2-Allenylbenzotriazole, Acta Crysatllogr. C, 59, 0338-0339, 2003.01.
162. Maeda, H.; Osuka A.; Furuta, H., Trans-Doubly N-Confused Porphyrins: Cu(III) Complexation and Formation of Rod-like Hydrogen Bonding Networks, J. Am. Chem. Soc., 10.1021/ja038519t, 125, 51, 15690-15691, 125, 15690-15691, 2003.01.
163. Liu, J.-C.; Ishizuka, T.; Osuka, A.; Furuta, H., "Modulation of Axial Coordination in N-Confused Porphyrin-Antimony(V) Dibromide Complex by Proton Stimulus", Chem. Commun., 10.1039/b301539b, 15, 1908-1909, 1908-1909, 2003.01.
164. Maeda, H.; Osuka, A.; Furuta, H., Hydrogen Bonding 1-D Chain Network of Cis-Doubly N-Confused Porphyrins, Supramolecular Chemistry, 10.1080/1061027031000147485, 15, 6, 447-450, 15, 447-450, 2003.01.
165. Liu, J.-C.; Ishizuka, T.; Osuka, A.; Furuta, H., "Modulation of Axial Coordination in N-Confused Porphyrin-Antimony(V) Dibromide Complex by Proton Stimulus", Chem. Commun., 10.1039/b301539b, 15, 1908-1909, 1908-1909, 2003.01.
166. Furuta, H.; Morimoto, T.; Osuka, A., "Synthesis and Structures of N-Confused 5,20-Diphenylporphyrin and Ag(III) Complex", Org. Lett., 5, 1427-1430., 2003.01.
167. Maeda, H.; Osuka, A.; Ishikawa, Y.; Aritome, I.; Hisaeda, Y.; Furuta, H., "N-Confused Porphyrin Bearing meso-Perfluorophenyl Groups: A Potential Agent that Forms Stable Squareplanar Complexes with Cu(II) and Ag(III)", Org. Lett., 10.1021/ol34227l, 5, 8, 1293-1296, 5, 1293-1296., 2003.01.
168. Furuta, H.; Youfu, K.; Maeda, H.; Osuka, A., "Facile Formation of N-Confused Porphyrin Dimers by Pt(II) Coordination to Outer-Nitrogens", Angew. Chem. Int. Ed., 10.1002/anie.200350995, 42, 19, 2186-2188, 42, 2186-2188., 2003.01.
169. Taniguchi, R.; Shimizu, S.; Suzuki, M.; Shin, J.-Y.; Furuta, H.; Osuka, A., "Ring Size Selective Synthesis of meso-Aryl Expanded Porphyrins", Tetrahedron Lett. 2003, 44, 2505-2507., 44, 2505-2507., 2003.01.
170. Sessler, J. L.; Berthon-Gelloz, G.; Gale, P. A.; Maeda, H.; Furuta, H.; Camiplo, S.; Anslyn, E. V.; Kikovits, G. J.; Zimmerman, R. S.; Scherer, M.; Morosini, P.; Lynch, V. M., "Oligopyrrole-based Solid State Self-assemblies", Polyhedron, 10.1016/S0277-5387(03)00436-4, 22, 22, 2963-2983, 22, 2963-2983., 2003.01.
171. Araki, K.; Engelmann, F. N.; Mayer, I.; Toma, H. E.; Baptista, M. S.; Maeda, H.; Osuka, A.; Furuta, H., "Doubly N-Confused Porphyrins as Efficient Sensitizers for Singlet Oxygen Generation", Chem. Lett., 10.1246/cl.2003.244, 32, 3, 244-245, 32, 244-245, 2003.01.
172. Alagar, S.; Ishizuka, T.; Osuka, A.; Furuta, H., "Doubly N-Confused Hexaphyrin: A Novel Aromatic Expanded Porphyrin that Complexes Bis-Metals in the Core", J. Am. Chem. Soc., 10.1021/ja029018v, 125, 4, 878-879, 125, 878-879, 2003.01.
173. Furuta, H.; Maeda, H., "Chemistry of N-confused Porphyrin: A Novel Porphyrin Isomer", J. Oleo Sci., 3, 77-82., 2003.01.
174. Furuta, H.; Ishizuka, T.; Osuka, A., "Zinc Complex of N-confused Calix[4]phyrin", Inorg. Chem. Commun., 10.1016/S1387-7003(02)00797-9, 6, 4, 398-401, 6, 398-401., 2003.01.
175. Furuta, H.; Maeda, H.; Osuka, A., "Crystal Structures of Palladium(II) and Copper(II) Complexes of meso-Phenyl Tripyrrinone", Inorg. Chem. Commun., 10.1016/S1387-7003(02)00712-8, 6, 2, 162-164, 6, 162-164., 2003.01.
176. Shimizu, S.; Shin, J.-Y.; Furuta, H.; Ismael, R.; Osuka, A., "Perfluorinated meso-Aryl Expanded Porphyrins", Angew. Chem. Int. Ed., 42, 78-82., 2003.01.
177. Sessler, J. L.; Maeda, H.; Mizuno, T.; Lynch, V. M.; Furuta, H., "Quinoxaline-Bridged Porphyrinoids", J. Am. Chem. Soc., 124, 13474-13479., 2002.01.
178. Takase, M.; Ismael, R.; Murakami, R.; Ikeda, M.; Kim, D.; Shinmori, H.; Furuta, H.; Osuka, A., "Efficient Synthesis of Benzene-Centered Cyclic Porphyrin Hexamers", Tetrahedron Lett., 43, 5157-5159., 2002.01.
179. Shinmori, H,; Furuta, H.; Osuka, A., "Effective Face-to-face Dimerization of A Crown Ether Appended N-Confused Porphyrins", Tetrahedron Lett., 43, 4881-4884., 2002.01.
180. Furuta, H.; Maeda, H.; Osuka, A., "Confusion, Inversion, and Creation ミ A New Spring from Porphyrin Chemistry", Chem. Commun., 2002, 1795-1804., 2002.01.
181. Furuta, H.; Ishizuka, T.; Osuka, A., "Flexible Inner and Outer Coordination of Zn(II) N-Confused Porphyrin Complex", J. Am. Chem. Soc., 2002, 124, 5622-5623., 2002.01.
182. Sessler, J. L.; Maeda, H.; Mizuno T.; Lynch, V. M.; Furuta H., "Quinoxaline-oligopyrroles: Improved Pyrrole-based Anion Receptors", Chem. Commun., 2002, 862-863., 2002.01.
183. Furuta, H.; Maeda, H.; Osuka, A., "Regioselective Oxidative Liberation of Aryl-Substituted Tripyrrinone Metal Complexes from N-Confused Porphyrin", Org. Lett., 2002, 4, 181-184., 2002.01.
184. Tsuda A.; Furuta, H.; Osuka A., "Syntheses, Structural Characterizations, and Optical and Electrochemical Properties of Directly Fused Diporphyrins", J. Am. Chem. Soc., 2001, 123, 10304-10321., 2001.01.
185. Nakano, A.; Aratani, N.; Furuta, H.; Osuka, A., Directly Linked Dehydropurpurin - Porphyrin Dyads from Ag(I)-promoted Oxidation of meso-Phenylethynyl Substituted Zinc(II) Porphyrins", Chem. Commun., 2001, 1920-1921., 2001.01.
186. Alagar, S.; Furuta, H.; Osuka, A., "The First bis-Rh(I) Complex of N-Confused Porphyrin", Chem. Commun., 2001, 1666-1667., 2001.01.
187. Furuta, H. : Maeda, H.; Osuka, A., "Theoretical Study of Stability, Structures, and Aromaticity of Multiply N-Confused Porphyrins", J. Org. Chem., 2001, 66, 8563-8572., 2001.01.
188. Shin, J.-Y.; Furuta, H.; Yoza, K.; Igarashi, S.; Osuka, A., "Meso-Aryl Substituted Expanded Porphyrins", J. Am. Chem. Soc., 2001, 123, 7190-7191., 2001.01.
189. Furuta, H.; Maeda, H.; Osuka, A., "Oxyindolophyrin: A Novel Fluoride Receptor Derived from N-Confused Corrole Isomer", J. Am. Chem. Soc., 2001, 123, 6435-6436., 2001.01.
190. Furuta, H.; Ishizuka, T.; Osuka, A.; Dejima, A.; Nakagawa, H.; Ishikawa, Y., "NH Tautomerism of N-Confused porphyrin", J. Am. Chem. Soc., 2001, 123, 6207-6208., 2001.01.
191. Furuta, H.; Ishizuka, T.; Osuka, A.; Uwatoko, Y.; Ishikawa, Y., "Metal Complexes of N-Confused Calix[4]phyrin Derivativeミ The First X-ray Structure of Organometallic Compound of Divalent Copper", Angew. Chem., Int. Ed., 2001, 40, 2323-2325., 2001.01.
192. Pushpan, S. K.; Srinivasan, A.; Anand, V. G.; Venkatraman, S.; Chandrashekar, T. K.; Joshi, B. S.; Roy, R.; Furuta, H., "N-Confused Expanded Porphyrins: First Example of a Modified Sapphyrin with an Inverted N-Confused Pyrrole Ring", J. Am. Chem. Soc., 2001, 123, 5138-5139., 2001.01.
193. Araki, K.; Winnischofer, H.; Toma, H. E.; Maeda, H.; Osuka, A.; Furuta, H., "Acid-Base and Spectroelectrochemical Properties of Doubly N-Confused Porphyrins", Inorg. Chem., 2001, 40, 2020-2025., 2001.01.
194. Shin, J.-Y.; Furuta, H.; Osuka, A., "N-Fused Pentaphyrins", Angew. Chem., Int. Ed., 2001, 40, 619-621., 2001.01.
195. Furuta, H.; Kubo, N.; Maeda, H.; Ishizuka, T.; Osuka, A., Nanami, H.; Ogawa, T., "N-Confused Double-Decker Porphyrins", Inorg. Chem., 39, 5424-5425., 2000.01.
196. Ogawa, T.; Furuta, H.; Takahashi, M.; Morino, A,; Uno, H., "Synthesis and Characterization of N-Confused Porphyrinatoantimony(V): Toward Low Energy Gap Molecular Wire", J. Organomet. Chem., 61, 551-557., 2000.01.
197. Furuta, H.; Maeda, H.; Osuka, A.: Yasutake, M.; Shinmyozu, T.; Ishikawa, Y., "Inner C-arylation of Doubly N-Confused Porphyrin-Pd Complex in Toluene---A Possibility of Pd3+ Intermediate", Chem. Commun., 10.1039/b003022h, 13, 1143-1144, 1143-1144., 2000.01.
198. Tsuda, A.; Furuta, H.; Osuka, A., "Completely Fused Diporphyrins and Triporphyrin, Angew. Chem., Int. Ed., 39, 2549-2552., 2000.01.
199. Furuta, H.; Maeda, H.; Osuka, A., "Stability and Structure of Doubly N-Confused Porphyrins", J. Org. Chem., 65, 4222-4226., 2000.01.
200. Furuta, H.; Ishizuka, T.; Osuka, A., "N-Fused Porphyrin: A New Tetrapyrrolic Porphyrinoid with A Fused Tripentacyclic Ring", J. Am. Chem. Soc., 10.1021/ja000148i, 122, 24, 5748-5757, 122, 5748-5757., 2000.01.
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