論文 - 片桐 幸輔
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Conformational Properties of Aromatic Amides Bearing Imidazole Ring and Acid-Induced Trans–Cis Amide Switching
Chiharu Takubo, Sakiko Kimura, Mami Ichinomiya, Arisa Hayakawa, Mako Murata, Ko Urushibara, Hyuma Masu, Kosuke Katagiri, Masatoshi Kawahata, Mayumi Kudo, Isao Azumaya, Hiroyuki Kagechika, Aya Tanatani
The Journal of Organic Chemistry 2022年9月
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Investigating the synthesis and structure of [2]pseudorotaxanes assembled by crown ether as wheel component and dual-cation axle with phosphonium and ammonium cations
Naoki Fujimoto, Koshiro Isono, Kosuke Katagiri
Journal of Molecular Structure 1259 132721 - 132721 2022年7月
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Crystal structures and solution behavior of cis-di(aqua)bis(2,2 '-bipyridine)cobalt(III) and related complexes
Mari Toyama, Yu Yamamoto, Takuya Yoshimoto, Kosuke Katagiri
JOURNAL OF MOLECULAR STRUCTURE 1244 2021年11月
出版者・発行元：ELSEVIER
A cobalt(III) complex bearing two 2,2'-bipyridine (bpy) ligands and two aqua ligands, cis-[Co(bpy)(2)(OH2)(2)][OTf](3)center dot H2O (1 center dot[OTf](3)center dot H2O; OTf- = CF3SO3-), was obtained from the reaction of [Co(bpy)(2)(CO3)][OTf]center dot 0.5H(2)O with aqueous HOTf (HOTf = HCF3SO3, trifluoromethanesulfonic acid). The prepared complex was characterized by single-crystal X-ray crystallographic and elemental analyses, and its solution behavior was investigated by H-1 NMR spectroscopy. Our study of 1 center dot[OTf](3)center dot H2O revealed that it is stable in water and acetone upon heating; however, in methanol and ethanol, the complex was unstable upon heating, forming [Co(bpy)(3)](3+). In addition, upon the reaction of 1 center dot[OTf](3)center dot H2O with picolinic acid (Hpic) in acetone at 295 K, [Co(bpy)(2)(pic)][OTf](2) (2 center dot[OTf](2)) was gradually and selectively precipitated from the reaction solution in 82% yield. Moreover, the reaction between 1 center dot[OTf](3)center dot H2O, NaOH, and H2O2 in water at room temperature produced the dinuclear complex [Co-2(bpy)(4)(mu-O-2)(mu-OH)][PF6](3) (3 center dot[PF6](3)) in good yield (92%) and with excellent purity. The structures of 1 center dot[OTf](3)center dot H2O and 2 center dot[PF6](2) were determined by single-crystal X-ray crystallographic analysis. (C) 2021 Elsevier B.V. All rights reserved.
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Accessing Improbable Foldamer Shapes with Strained Macrocycles
Ko Urushibara, Yann Ferrand, Zhiwei Liu, Kosuke Katagiri, Masatoshi Kawahata, Estelle Morvan, Ryan D'Elia, Vojislava Pophristic, Aya Tanatani, Ivan Huc
Chemistry – A European Journal 27 ( 43 ) 11205 - 11215 2021年8月
出版者・発行元：Wiley
その他リンク： https://onlinelibrary.wiley.com/doi/full-xml/10.1002/chem.202101201
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Construction of Aromatic Multilayered Structures Based on the Conformational Properties of N,N’-Dimethylated Squaramide
Maiko Arimura, Kimiko Tanaka, Midori Kanda, Ko Urushibara, Shinya Fujii, Kosuke Katagiri, Isao Azumaya, Hiroyuki Kagechika, Aya Tanatani
ChemPlusChem 86 ( 1 ) 198 - 205 2021年1月
出版者・発行元：Wiley
© 2021 Wiley-VCH GmbH Squaramide is a highly rigid four-membered ring system bearing two carbonyl and two amino groups, and its derivatives have found applications in many fields. We synthesized several N,N’-dimethylated oligosquaramides linked via phenyl groups, and investigated their structures in the crystalline state and in solution. Compounds 1, 2 (bissquaramides), and 13 (trissquaramide) exist as folded structures in the crystalline state, in which the aromatic rings are located in a face-to-face position. In their multilayered structures, the benzene rings are more nearly parallel and are closer to each other, compared with those in N,N’-dimethylated oligoureas. Individual molecules of meta-connected compounds 2 and 13 show a helical structure with all-R or all-S axis chirality, but afford only racemic crystals. The NMR spectra indicated that these compounds retain well-ordered folded structures in solution. The unique steric and electronic properties of N,N’-dimethylated squaramide can provide access to novel functional aromatic multilayered and helical foldamers.
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Oxaphosphacyclophanes Constructed from a Bis(triphenylphosphine oxide) Moiety Linked by Dioxyalkyl Chains: Synthesis and Crystal Structures 査読あり
Kosuke Katagiri, Masahiro Ohara, Masahiro Ikehara, Ikkei Higashimura, and Koshiro Isono
ACS Omega 5 23621 - 23630 2020年
共著
出版者・発行元：Americal Chemical Society
Oxaphosphacyclophanes, a bis(triphenylphosphine oxide) moiety
linked by dioxypropane, dioxybutane, dioxypentane, and dioxyhexane, were
synthesized from the reaction of bis(4-hydroxyphenyl)phenylphosphine oxide
and dibromoalkanes. Single-crystal X-ray diffraction analysis and exploring
intermolecular interactions by using the Hirshfeld surface revealed that the
butylene-linked oxaphosphacyclophane (2) had a one-dimensional (1D)
supramolecular structure via CH/π interactions between the terminal phenyl
group of 2 and a phenylene group of the cavities. In the packing diagram of
pentylene-linked oxaphosphacyclophane (3) with antiform, one macrocycle
recognized two terminal phenyl groups to form a 1D supramolecular chain via
π/π interactions. The syn-form of 3 was obtained by the recrystallization from
toluene and CHCl3. In this crystal, a toluene molecule avoid construction of a
1D chain. The antiform of hexylene-linked oxaphosphacyclophane 4 was
obtained by the recrystallization from cyclohexane and CHCl3. Cyclohexane
was captured in the cavity via CH/π interactions. Two molecules of 4 with the syn-form recognized each other to construct a
dimeric structure via CH/π interactions. -
Synthesis and chiroptical properties of cylindrical macrocycles comprising two calix[3]aramide moieties 査読あり
Yuuki Saito, Misa Satake,Ryuichi Mori,Misaki Okayasu, Hyuma Masu, Masahide Tominaga, Kosuke Katagiri, Kentaro Yamaguchi, Shoko Kikkawa, Hidemasa Hikawa and Isao Azumaya
Organic & Biomolecular Chemistry 18 230 - 236 2020年
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出版者・発行元：Royal society of chemistry
Calix[3]aramide-based cylindrical macrocycles were synthesized by the one-step amide coupling reaction
of a monomer containing two meta-alkylaminobenzoic acid units linked by para-phenylene bridges. The
major products included a meso-form and an enantiomeric pair, with stereochemistry derived from the
direction of the amide bonds and their fixed conformation. Mirror-image ECD, VCD, and CPL spectra
were observed in the enantiomeric pair and the absolute structure was determined by comparing
measured and calculated ECD and VCD spectra. -
Photoreaction of anthracenyl phosphine oxides: Usual reversible photo- and heat-induced emission switching, and unusual oxidative P–C bond cleavage 査読あり
Kosuke Katagiri, Yukina Yamamoto, Yuhi Takahata, Ryoga Kishibe
Tetrahedron Letters 60 ( 30 ) 2026 2019年6月
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Hydrogen-bonded structures from adamantane-based catechols
Kawahata Masatoshi, Matsuura Miku, Tominaga Masahide, Katagiri Kosuke, Yamaguchi Kentaro
JOURNAL OF MOLECULAR STRUCTURE 1164 116 - 122 2018年7月
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Aqua coordination to attenuate the luminescence properties of europium(III)-phosphine oxide porous coordination polymers
Katagiri Kosuke, Matsuo Naoya, Kawahata Masatoshi, Masu Hyuma, Yamaguchi Kentaro
NEW JOURNAL OF CHEMISTRY 41 ( 16 ) 8305 - 8311 2017年8月
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Aqua Coordination to Attenuate the Luminescence Properties of Europium(III)-Phosphine Oxide Coordination Polymers 査読あり
Kosuke Katagiri, Naoya Matsuo, Masatoshi Kawahata, Hyuma Masu, Kentaro Yamaguchi
New Journal of Chemistry 41 8305 - 8311 2017年7月
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Crystal Structure of a Methanesulfonate Salt of 3-(N-Methyl)quinolinium Boronic Acid 査読あり
Tomoyuki Takeyama, Yuki Nakajima, Kosuke Katagiri, Satoshi Iwatsuki
X-Ray Structure Analysis Online 33 9 - 10 2017年2月
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Crystal Structure of a Methanesulfonate Salt of 3-(N-Methyl)quinolinium Boronic Acid
Takeyama Tomoyuki, Nakajima Yuki, Katagiri Kosuke, Iwatsuki Satoshi
X-RAY STRUCTURE ANALYSIS ONLINE 33 9 - 10 2017年2月
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Vesicle Formation of Three-dimensional Trinuclear Silver(I) Complexes Built from Tris-NHC Ligands Bearing Long Alkyl Chains
Tominaga Masahide, Kawaguchi Taichi, Ohara Kazuaki, Yamaguchi Kentaro, Katagiri Kosuke, Itoh Tsutomu, Azumaya Isao
CHEMISTRY LETTERS 45 ( 10 ) 1201 - 1203 2016年10月
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Coordination structure and extraction behavior of a silver ion with N-substituted-9-aza-3,6,12,15-tetrathiaheptadecanes: significant effect of Ph-C-N framework on the extractability
Iwatsuki Satoshi, Ichiyama Atsushi, Tanooka Syogo, Toyama Mari, Katagiri Kosuke, Kawahata Masatoshi, Yamaguchi Kentaro, Danjo Hiroshi, Chayama Kenji
DALTON TRANSACTIONS 45 ( 31 ) 12548 - 12558 2016年8月
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Vesicle Formation of Three-dimensional Trinuclear Silver(I) Complexes Built from Tris-NHC Ligands Bearing Long Alkyl Chains 査読あり
Masahide Tominaga, Taichi Kawaguchi, Kazuaki Ohara, Kentaro Yamaguchi, Kosuke Katagiri, Tsutomu Itoh, Isao Azumaya
Chemistry Letters 45 1201 - 1203 2016年8月
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Coordination structure and extraction behavior of a silver ion with N-substituted-9-aza-3,6,12,15-tetrathiaheptadecanes: significant effect of Ph–C–N framework on the extractability 査読あり
Satoshi Iwatsuki, Atsushi Ichiyama, Syogo Tanooka, Mari Toyama, Kosuke Katagiri, Masatoshi Kawahata, Kentaro Yamaguchi, Hiroshi Danjo, Kenji Chayama
Dalton Transactions 45 12548 - 12558 2016年7月
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Control of a Chiral Property of a Calix[3]aramide: The Racemization Suppressed by Intramolecular Cyclic Hydrogen Bonds and DMSO–H2O System-Induced Spontaneous Resolution 査読あり
Kosuke Katagiri, Shinsuke Komagawa, Masanobu Uchiyama, Kentaro Yamaguchi, Isao Azumaya
Organic Letters 17 3650 - 3653 2015年7月
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Channel-dependent conformations of single-strand polymers in organic networks composed of tetrapodal adamantanes with N-heterocyclic moieties (vol 55, pg 5789, 2014)
Tominaga Masahide, Iekushi Akitaka, Katagiri Kosuke, Ohara Kazuaki, Yamaguchi Kentaro, Azumaya Isao
TETRAHEDRON LETTERS 56 ( 27 ) 4143 - 4144 2015年7月
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Multilayered Inclusion Nanocycles of Anionic Spiroborates
Danjo Hiroshi, Kidena Yuki, Kawahata Masatoshi, Sato Hiroyasu, Katagiri Kosuke, Miyazawa Toshifumi, Yamaguchi Kentaro
ORGANIC LETTERS 17 ( 10 ) 2466 - 2469 2015年5月
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Nestable Tetrakis(spiroborate) Nanocycles
Danjo Hiroshi, Hashimoto Yuhki, Kidena Yuki, Nogamine Ayumi, Katagiri Kosuke, Kawahata Masatoshi, Miyazawa Toshifumi, Yamaguchi Kentaro
ORGANIC LETTERS 17 ( 9 ) 2154 - 2157 2015年5月
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Multilayered Inclusion Nanocycles of Anionic Spiroborates 査読あり
Hiroshi Danjo, Yuki Kidena, Masatoshi Kawahata, Hiroyasu Sato, Kosuke Katagiri, Toshifumi Miyazawa, Kentaro Yamaguchi
Organic Letters 17 2466 - 2469 2015年4月
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Nestable Tetrakis(spiroborate) Nanocycles 査読あり
Hiroshi Danjo, Yuhki Hashimoto, Yuki Kidena, Ayumi Nogamine, Kosuke Katagiri, Masatoshi Kawahata, Toshifumi Miyazawa, Kentaro Yamaguchi
Organic Letters 17 2154 - 2157 2015年4月
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Adamantane-Based Oxacyclophanes Containing Pyrazines: Synthesis, Crystal Structure, and Self-Assembly Behavior
Tominaga Masahide, Kunitomi Nobuto, Katagiri Kosuke, Itoh Tsutomu
ORGANIC LETTERS 17 ( 4 ) 786 - 789 2015年2月
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Adamantane-Based Oxacyclophanes Containing Pyrazines: Synthesis, Crystal Structure, and Self-Assembly Behavior 査読あり
Masahide Tominaga, Nobuto Kunitomi, Kosuke Katagiri, Tsutomu Itoh
Organic Letters 17 786 - 789 2015年2月
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Formation of Lanthanide(III)-Containing Metallosupramolecular Arrays Induced by Tris(spiroborate) Twin Bowl
Danjo Hiroshi, Nakagawa Toshi, Katagiri Kosuke, Kawahata Masatoshi, Yoshigai Seiki, Miyazawa Toshifumi, Yamaguchi Kentaro
CRYSTAL GROWTH & DESIGN 15 ( 1 ) 384 - 389 2015年1月
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Formation of Lanthanide(III)-Containing Metallosupramolecular Arrays Induced by Tris(spiroborate) Twin Bowl 査読あり
Hiroshi Danjo, Toshi Nakagawa, Kosuke Katagiri, Masatoshi Kawahata, Seiki Yoshigai, Toshifumi Miyazawa, Kentaro Yamaguchi
Crystal Growth & Design 15 384 - 389 2014年11月
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Folded-to-unfolded structural switching of a macrocyclic aromatic hexaamide based on conformation changes in the amide groups induced by N-alkylation and dealkylation reactions 査読あり
Kosuke Katagiri, Taichi Tohaya, Riwako Shirai, Takako Kato, Hyuma Masu, Masahide Tominaga, Isao Azumaya
Journal of Molecular Structure 1082 23 - 28 2014年11月
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Channel-dependent conformations of single-strand polymers in organic networks composed of tetrapodal adamantanes with N-heterocyclic moieties
Tominaga Masahide, Iekushi Akitaka, Katagiri Kosuke, Ohara Kazuaki, Yamaguchi Kentaro, Azumaya Isao
TETRAHEDRON LETTERS 55 ( 42 ) 5789 - 5792 2014年10月
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Synthesis and Structure of Silver (I) Coordination Polymers with Bis (pyridyl) Ligands Linked by an Aromatic Sulfonamide
Katagiri Kosuke
YAKUGAKU ZASSHI-JOURNAL OF THE PHARMACEUTICAL SOCIETY OF JAPAN 134 ( 9 ) 939 - 947 2014年9月
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Channel-dependent conformations of single-strand polymers in organic networks composed of tetrapodal adamantanes with N-heterocyclic moieties 査読あり
Masahide Tominaga, Akitaka Iekushi, Kosuke Katagiri, Kazuaki Ohara, Kentaro Yamaguchi, Isao Azumaya
Tetrahedron Letters 55 5789 - 5792 2014年8月
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N'-[2-(7,8-Dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridine-10(2H)-yl)ethylidene]-4-nitrobenzohydrazide 査読あり
Masayuki Morikawa, Katsuhito Kino, Eriko Asada, Kosuke Katagiri, Kanami Mori-Yasumoto, Masayo Suzuki, Takanobu Kobayashi, Hiroshi Miyazawa
Molbank 2014 ( M836 ) 2014年8月
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Acid-Mediated Ring-Expansion Reaction of N-Aryl-2-vinylazetidines: Synthesis and Unanticipated Reactivity of Tetrahydrobenzazocines
Shimizu Tomoaki, Koya Shunsuke, Yamasaki Ryu, Mutoh Yuichiro, Azumaya Isao, Katagiri Kosuke, Saito Shinichi
JOURNAL OF ORGANIC CHEMISTRY 79 ( 10 ) 4367 - 4377 2014年5月
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Tubular structures bearing channels in organic crystals composed of adamantane-based macrocycles
Tominaga Masahide, Ukai Hiroyuki, Katagiri Kosuke, Ohara Kazuaki, Yamaguchi Kentaro, Azumaya Isao
TETRAHEDRON 70 ( 15 ) 2576 - 2581 2014年4月
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Acid-Mediated Ring-Expansion Reaction of N-Aryl-2-vinylazetidines: Synthesis and Unanticipated Reactivity of Tetrahydrobenzazocines 査読あり
Tomoaki Shimizu, Shunsuke Koya, Ryu Yamasaki, Yuichiro Mutoh, Isao Azumaya, Kosuke Katagiri, Shinichi Saito
The Journal of Organic Chemistry 79 4367 - 4377 2014年4月
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Tubular structures bearing channels in organic crystals composed of adamantane-based macrocycles 査読あり
Masahide Tominaga, Hiroyuki Ukai, Kosuke Katagiri, Kazuaki Ohara, Kentaro Yamaguchi, Isao Azumaya
Teterahedron 70 2576 - 2581 2014年3月
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Synthesis, Structure, and Thermal Stability of Silver(I) Coordination Polymers with Bis(pyridyl) Ligands Linked by an Aromatic Sulfonamide: One-Dimensional-Straight Chain, One-Dimensional-Columnar with Helical Components, and Two-Dimensional-Layer Network Structures 査読あり
Kosuke Katagiri, Takahiro Sakai, Maiko Hishikawa, Hyuma Masu, Masahide Tominaga, Kentaro Yamaguchi, Isao Azumaya
Crystal Growth & Design 14 199 - 206 2013年12月
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Helicity Induction in Three -Conjugated Chromophores by Planar Chirality of Calixamide
Yamakado Ryohei, Mikami Koichiro, Takagi Koji, Azumaya Isao, Sugimoto Shinri, Matsuoka Shin-ichi, Suzuki Masato, Katagiri Kosuke, Uchiyama Masanobu, Muranaka Atsuya
CHEMISTRY-A EUROPEAN JOURNAL 19 ( 36 ) 11853 - 11857 2013年9月
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Organic crystals bearing both channels and cavities formed from tripodal adamantane molecules
Tominaga Masahide, Iekushi Akitaka, Katagiri Kosuke, Ohara Kazuaki, Yamaguchi Kentaro, Azumaya Isao
JOURNAL OF MOLECULAR STRUCTURE 1046 52 - 56 2013年8月
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Helicity Induction in Three p-Conjugated Chromophores by Planar Chirality of Calixamide 査読あり
Ryohei Yamakado, Koichiro Mikami, Koji Takagi, Isao Azumaya, Shinri Sugimoto, Shin-ichi Matsuoka, Masato Suzuki, Kosuke Katagiri, Masanobu Uchiyama, Atsuya Muranaka
Chemistry - A European Journal 19 11853 - 11857 2013年8月
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Organic crystals bearing both channels and cavities formed from tripodal adamantane molecules 査読あり
Masahide Tominaga, Akitaka Iekushi, Kosuke Katagiri, Kazuaki Ohara, Kentaro Yamaguchi, Isao Azumaya
Journal of Molecular Structure 1046 52 - 56 2013年3月
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A screw-shaped alignment of pyrene using m-calix[3]amide
Yamakado Ryohei, Matsuoka Shin-ichi, Suzuki Masato, Takagi Koji, Katagiri Kosuke, Azumaya Isao
TETRAHEDRON 69 ( 5 ) 1516 - 1520 2013年2月
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Pseudopolymorphism and Polymorphic Transition Behavior of N-(4 '-Methoxyphenyl)-2-naphthalenesulfonamide
Sakai Takahiro, Katagiri Kosuke, Uemura Yuki, Masu Hyuma, Tominaga Masahide, Azumaya Isao
CRYSTAL GROWTH & DESIGN 13 ( 1 ) 308 - 314 2013年1月
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A screw-shaped alignment of pyrene using m-calix[3]amide 査読あり
Ryohei Yamakado, Shin-ichi Matsuoka, Masato Suzuki, Koji Takagi, Kosuke Katagiri, Isao Azumaya
Tetrahedron 69 1516 - 1520 2012年12月
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Pseudopolymorphism and Polymorphic Transition Behavior of N-(4'-Methoxyphenyl)-2-naphthalenesulfonamide 査読あり
Takahiro Sakai, Kosuke Katagiri, Yuki Uemura, Hyuma Masu, Masahide Tominaga, Isao Azumaya
Crystal Growth & Design 13 308 - 314 2012年12月
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Preparation of Magnetic Ionic Liquids Composed of Hybrid-Type Anions 査読あり
Yumiko Takagi, Yoriko Kusunoki, Yukihiro Yoshida, Hirofusa Tanaka, Gunzi Saito, Kosuke Katagiri, Toshiyuki Oshiki
Australian Journal of Chemistry 65 1557 - 1560 2012年11月
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Synthesis and structure of bidentate NHC-metal complexes with xanthene skeleton: the formation of cis and trans complexes
Saito Shinichi, Kobayashi Takaya, Makino Takeshi, Yamaguchi Hiromitsu, Muto Hiroki, Azumaya Isao, Katagiri Kosuke, Yamasaki Ryu
TETRAHEDRON 68 ( 43 ) 8931 - 8936 2012年10月
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Redox-responsive conformational alteration of aromatic amides bearing N-quinonyl system
Okamoto Iwao, Takahashi Yusuke, Sawamura Mika, Matsumura Mio, Masu Hyuma, Katagiri Kosuke, Azumaya Isao, Nishino Masanori, Kohama Yukari, Morita Nobuyoshi, Tamura Osamu, Kagechika Hiroyuki, Tanatani Aya
TETRAHEDRON 68 ( 27-28 ) 5346 - 5355 2012年7月
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Synthesis and helical properties of aromatic multilayered oligoureas
Kudo Mayumi, Katagiri Kosuke, Azumaya Isao, Kagechika Hiroyuki, Tanatani Aya
TETRAHEDRON 68 ( 23 ) 4455 - 4463 2012年6月
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Polymorphism of Aromatic Sulfonamides with Fluorine Groups
Terada Sho, Katagiri Kosuke, Masu Hyuma, Danjo Hiroshi, Se Yoshihisa, Kawahata Masatoshi, Tominaga Masahide, Yamaguchi Kentaro, Azumaya Isao
CRYSTAL GROWTH & DESIGN 12 ( 6 ) 2908 - 2916 2012年6月
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Redox-responsive conformational alternation of aromatic amides bearing N-quinonyl system 査読あり
Iwao Okamoto, Yusuke Takahashi, Mika Sawamura, Mio Matsumura, Hyuma Masu, Kosuke Katagiri, Isao Azumaya, Masanori Nishino, Yukari Kohama, Nobuyoshi Morita, Osamu Tamura, Hiroyuki Kagechika, Aya Tanatani
Tetrahedron 68 5346 - 5355 2012年5月
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Polymorphism of Aromatic Sulfonamides with Fluorine Groups 査読あり
Sho Terada, Kosuke Katagiri, Hyuma Masu, Hiroshi Danjo, Yoshihisa Sei, Masatoshi Kawahata, Masahide Tominaga, Kentaro Yamaguchi, Isao Azumaya
Crystal Growth & Design 12 2908 - 2916 2012年4月
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Preparation of Magnetic Ionic Liquids Composed of Hybrid-Type Anions
Takagi Yumiko, Kusunoki Yoriko, Yoshida Yukihiro, Tanaka Hirofusa, Saito Gunzi, Katagiri Kosuke, Oshiki Toshiyuki
AUSTRALIAN JOURNAL OF CHEMISTRY 65 ( 11 ) 1557 - 1560 2012年
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Synthesis of linear and cyclic aromatic peptides with fixed conformation owing to intramolecular hydrogen bonding by condensation polymerization method
Ohishi Tomoyuki, Suzuki Toshiya, Niiyama Tetsurou, Mikami Koichiro, Yokoyama Akihiro, Katagiri Kosuke, Azumaya Isao, Yokozawa Tsutomu
TETRAHEDRON LETTERS 52 ( 52 ) 7067 - 7070 2011年12月
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Synthesis and helical properties of aromatic multilayered oligoureas 査読あり
Mayumi Kudo, Kosuke Katagiri, Isao Azumaya, Hiroyuki Kagechika, Aya Tanatani
Teterahedron 68 4455 - 4463 2011年12月
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Acid-induced conformational alteration of cis-preferential aromatic amides bearing N-methyl-N-(2-pyridyl) moiety
Okamoto Iwao, Terashima Masayuki, Masu Hyuma, Nabeta Mayumi, Ono Kaori, Morita Nobuyoshi, Katagiri Kosuke, Azumaya Isao, Tamura Osamu
TETRAHEDRON 67 ( 44 ) 8536 - 8543 2011年11月
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Synthesis of linear and cyclic aromatic peptides with fixed conformation owing to intramolecular hydrogen bonding by condensation polymerization method 査読あり
Tomoyuki Ohishi, Toshiya Suzuki, Tetsurou Niiyama, Koichiro Mikami, Akihiro Yokoyama, Kosuke Katagiri, Isao Azumaya, Tsutomu Yokozawa
Tetrahedron Letters 52 7067 - 7070 2011年10月
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Acid-induced conformational alternation of cis-preferential aromatic amides bearing N-methyl-N-(2-pyridyl) moiety 査読あり
Iwao Okamoto, Masayuki Terashima, Hyuma Masu, Mayumi Nabeta, Kaori Ono, Nobuyoshi Morita, Kosuke Katagiri, Isao Azumaya, Osamu Tamura
Tetrahedron 67 8536 - 8543 2011年9月
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Calix[3]amide-based anion receptors: high affinity for fluoride ions and a twisted binding model 査読あり
Kosuke Katagiri, Taniyuki Furuyama, Hyuma Masu, Takako Kato, Mio Matsumura, Masanobu Uchiyama, Aya Tanatani, Masahide Tominaga, Hiroyuki Kagechika, Kentaro Yamaguchi, Isao Azumaya
Supramolecular Chemsitry 23 125 - 130 2011年2月
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Calix[3]amide-based anion receptors: high affinity for fluoride ions and a twisted binding model
Katagiri Kosuke, Furuyama Taniyuki, Masu Hyuma, Kato Takako, Matsumura Mio, Uchiyama Masanobu, Tanatani Aya, Tominaga Masahide, Kagechika Hiroyuki, Yamaguchi Kentaro, Azumaya Isao
SUPRAMOLECULAR CHEMISTRY 23 ( 1-2 ) 125 - 130 2011年
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Crystal structure of spherical aromatic amide: pseudopolymorphs and formation of infinite water cluster in the channel structure
Masu Hyuma, Sagara Yuko, Imabeppu Fumiaki, Takayanagi Hiroaki, Katagiri Kosuke, Kawahata Masatoshi, Tominaga Masahide, Kagechika Hiroyuki, Yamaguchi Kentaro, Azumaya Isao
CRYSTENGCOMM 13 ( 2 ) 406 - 409 2011年
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Crystal structure of spherical aromatic amide: pseudopolymorphs and formation of infinite water cluster in the channel structure 査読あり
Hyuma Masu, Yuko Sagara, Fumiaki Imabeppu, Hiroaki Takayanagi, Kosuke Katagiri, Masatoshi Kawahata, Masahide Tominaga, Hiroyuki Kagechika, Kentaro Yamaguchi, Isao Azumaya
CrystEngComm 13 406 - 409 2010年10月
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Polymorphism or pseudopolymorphism of a macrocyclic compound: helical structure, layered structure and pseudorotaxane constructed by weak intermolecular interactions 査読あり
Taichi Tohaya, Kosuke Katagiri, Junya Katoh, Hyuma Masu, Masahide Tominaga, Isao Azumaya
CrystEngComm 12 3493 - 3495 2010年6月
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Coordination Polymers and Networks Constructed from Bidentate Ligands Linked with Sulfonamide and Silver(I) Ions
Katagiri Kosuke, Ikeda Takashi, Tominaga Masahide, Masu Hyuma, Azumaya Isao
CRYSTAL GROWTH & DESIGN 10 ( 5 ) 2291 - 2297 2010年5月
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Coordination Polymers and Networks Constructed from Bidentate Ligands Linked with Sulfonamide and Silver(I) Ions 査読あり
Kosuke Katagiri, Takashi Ikeda, Masahide Tominaga, Hyuma Masu, Isao Azumaya
Crystal Growth & Design 10 2291 - 2297 2010年4月
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Trifluoroacetylation-Induced Houben-Hoesch-Type Cyclization of Cyanoacetanilides: Increased Nucleophilicity of CN Groups
Kobayashi Yusuke, Katagiri Kosuke, Azumaya Isao, Harayama Takashi
JOURNAL OF ORGANIC CHEMISTRY 75 ( 8 ) 2741 - 2744 2010年4月
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Polymorphism or pseudopolymorphism of a macrocyclic compound: helical structure, layered structure and pseudorotaxane constructed by weak intermolecular interactions
Tohaya Taichi, Katagiri Kosuke, Katoh Junya, Masu Hyuma, Tominaga Masahide, Azumaya Isao
CRYSTENGCOMM 12 ( 11 ) 3493 - 3495 2010年
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Hydrogen-bonded networks formed from tri- and tetra-substituted adamantanes bearing dimethoxyphenol moieties and their 1,3,5-trinitrobenzene complexes via charge-transfer interactions
Tominaga Masahide, Katagiri Kosuke, Azumaya Isao
CRYSTENGCOMM 12 ( 4 ) 1164 - 1170 2010年
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Thermal and catalytic isomerization of exomethylenecycloheptadienes. Experimental and theoretical studies
Fukusaki Yukiko, Miyazaki Jun, Azumaya Isao, Katagiri Kosuke, Komagawa Shinsuke, Yamasaki Ryu, Saito Shinichi
TETRAHEDRON 65 ( 51 ) 10631 - 10636 2009年12月
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Hydrogen-bonded networks formed from tri- and tetra-substituted adamantanes bearing dimethoxyphenol moieties and their 1,3,5-trinitrobenzene complexes via charge-transfer interations 査読あり
Masahide Tominaga, Kosuke Katagiri, Isao Azumaya
CrystEngComm 12 1164 - 1170 2009年12月
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Synthesis and chiral discrimination of cyclic aromatic amides and the determination of their absolute configuration by TD-DFT calculations
Katagiri Kosuke, Ikeda Takashi, Muranaka Atsuya, Uchiyama Masanobu, Tominaga Masahide, Azumaya Isao
TETRAHEDRON-ASYMMETRY 20 ( 22 ) 2646 - 2650 2009年11月
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Synthesis and chiral discrimination of cyclic aromatic amides and the determination of their absolute configuration by TD-DFT calculations 査読あり
Kosuke Katagiri, Takashi Ikeda, Atsuya Muranaka, Masanobu Uchiyama, Masahide Tominaga, Isao Azumaya
Tetrahedron: Asymmetry 20 2646 - 2650 2009年11月
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Thermal and catalytic isomerization of exomethylenecycloheptadienes. Experimental and theoretical studies 査読あり
Yukiko Fukusaki, Jun Miyazaki, Isao Azumaya, Kosuke Katagiri, Shinsuke Komagawa, Ryu Yamasaki, Shinichi Saito
Tetrahedron 65 10631 - 10636` 2009年10月
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Pseudopolymorph and Charge-Transfer Co-Crystal of Disubstituted Adamantane containing Dimethoxyphenol Moieties
Tominaga Masahide, Katagiri Kosuke, Azumaya Isao
CRYSTAL GROWTH & DESIGN 9 ( 8 ) 3692 - 3696 2009年8月
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Pseudopolymorph and Charge-Transfer Co-Crystal of Disubstituted Adamantane containing Dimethoxyphenol Moieties 査読あり
Masahide Tominaga, Kosuke Katagiri, Isao Azumaya
Crystal Growth & Design 9 3692 - 3696 2009年6月
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Effect of Aromatic-Aromatic Interactions on the Conformational Stabilities of Macrocycle and Preorganized Structure during Macrocyclization
Katagiri Kosuke, Tohaya Taichi, Masu Hyuma, Tominaga Masahide, Azumaya Isao
JOURNAL OF ORGANIC CHEMISTRY 74 ( 7 ) 2804 - 2810 2009年4月
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Effect of Aromatic–Aromatic Interactions on the Conformational Stabilities of Macrocycle and Preorganized Structure during Macrocyclization 査読あり
Kosuke Katagiri, Taichi Tohaya, Hyuma Masu, Masahide Tominaga, Isao Azumaya
The Journal of Organic Chemistry 74 2804 - 2810 2009年3月
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Pseudopolymorph and Infinite Hydrogen Bonding Network of Cyclic Oligomers of m-Aminobenzenesulfonic Acid
Katagiri Kosuke, Kato Takako, Masu Hyuma, Tominaga Masahide, Azumaya Isao
CRYSTAL GROWTH & DESIGN 9 ( 3 ) 1519 - 1524 2009年3月
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Pseudopolymorph and Infinite Hydrogen Bonding Network of Cyclic Oligomers of m-Aminobenzenesulfonic Acid 査読あり
Kosuke Katagiri, Takako Kato, Hyuma Masu, Masahide Tominaga, Isao Azumaya
Crystal Growth & Design 9 1519 - 1524 2009年1月
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Synthesis, crystal structure and dynamic behavior of naphthalene-based calix[3]amide: Cyclic trimers of 2-alkylamino-6-naphthoic acid
Katagiri Kosuke, Sawano Kanako, Okada Miho, Yoshiyasu Shiho, Shiroyama Reiko, Ikejima Norio, Masu Hyuma, Kato Takako, Tominaga Masahide, Azumaya Isao
JOURNAL OF MOLECULAR STRUCTURE 891 ( 1-3 ) 346 - 350 2008年11月
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Synthesis, Structure, and Solvent-Induced Spontaneous Homochiral Assembly of Bidentate Bis(N,N '-diaryl-N-heterocyclic carbene)-Palladium Complexes
Makino Takeshi, Masu Hyuma, Katagiri Kosuke, Yamasaki Ryu, Azumaya Isao, Saito Shinichi
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY ( 31 ) 4861 - 4865 2008年11月
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Polymorphism and pseudopolymorphism of an aromatic amide: Spontaneous resolution and crystal-to-crystal phase transition
Kato Takako, Okamoto Iwao, Masu Hyuma, Katagiri Kosuke, Tominaga Masahide, Yamaguchi Kentaro, Kagechika Hiroyuki, Azumaya Isao
CRYSTAL GROWTH & DESIGN 8 ( 10 ) 3871 - 3877 2008年10月
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Synthesis, Structure, and Solvent-Induced Spontaneous Homochiral Assembly of Bidentate Bis(N,N'-diaryl-N-heterocyclic carbene)-Palladium Complexes 査読あり
Takeshi Makino, Hyuma Masu, Kosuke Katagiri, Ryu Yamasaki, Isao Azumaya, Shinichi Saito
European Journal of Inorganic Chemsitry 31 4861 - 4865 2008年9月
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Polymorphism and Pseudopolymorphism of an Aromatic Amide: Spontaneous Resolution and Crystal-to-Crystal phase Transition 査読あり
Takako Kato, Iwao Okamoto, Hyuma Masu, Kosuke Katagiri, Masahide Tominaga, Kentaro Yamaguchi, Hiroyuki Kagechika, Isao Azumaya
Crystal Growth & Design 8 3871 - 3877 2008年8月
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INOR 216-Synthesis and homochiral crystallization of bis(N-heterocyclic carbene)-palladium complexes with xanthene framework
Makino Takeshi, Yamasaki Ryu, Masu Hyuma, Katagiri Kosuke, Azumaya Isao, Saito Shinichi
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 236 2008年8月
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One-pot synthesis of cyclic triamides with a triangular cavity from trans-stilbene and Diphenylacetylene monomers
Yokoyama Akihiro, Maruyama Takurou, Tagami Kei, Masu Hyuma, Katagiri Kosuke, Azumaya Isao, Yokozawa Tsutomu
ORGANIC LETTERS 10 ( 15 ) 3207 - 3210 2008年8月
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Chiral spherical molecule constructed from aromatic amides: Facile synthesis and highly ordered network structure in the crystal
Masu Hyuma, Katagiri Kosuke, Kato Takako, Kagechika Hiroyuki, Tominaga Masahide, Azumaya Isao
JOURNAL OF ORGANIC CHEMISTRY 73 ( 13 ) 5143 - 5146 2008年7月
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Synthesis and characteristic stereostructure of a biphenanthryl ether
Koizumi Yasuaki, Suzuki Shinya, Takeda Kyo, Murahashi Ken, Horikawa Manabu, Katagiri Kosuke, Masu Hyuma, Kato Takako, Azumaya Isao, Fujii Satoshi, Furuta Takumi, Tanaka Kiyoshi, Kan Toshiyuki
TETRAHEDRON-ASYMMETRY 19 ( 12 ) 1407 - 1410 2008年6月
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One-Pot Synthesis of Cyclic Triamides with a Triangular Cavity from trans-Stilbene and Diphenylacetylene Monomers 査読あり
Akihiro Yokoyama, Takurou Maruyama, Kei Tagami, Hyuma Masu, Kosuke Katagiri, Isao Azumaya, Tsutomu Yokozawa
Organic Letters 10 3207 - 3210 2008年6月
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Chiral Spherical Molecule Constructed from Aromatic Amides: Facile Synthesis and Highly Ordered Network Structure in the Crystal 査読あり
Hyuma Masu, Kosuke Katagiri, Takako Kato, Hiroyuki Kagechika, Masahide Tominaga, Isao Azumaya
The Journal of Organic Chemistry 73 5143 - 5146 2008年6月
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Synthesis and characteristic stereostructure of a biphenanthryl ether 査読あり
Yasuaki Koizumi, Shinya Suzuki, Kyo Takeda, Ken Murahashi, Manabu Horikawa, Kosuke Katagiri, Hyuma Masu, Takako Kato, Isao Azumaya, Satoshi Fujii, Takumi Furuta, Kiyoshi Tanaka, Toshiyuki Kan
Tetrahedron: Asymmetry 19 1407 - 1410 2008年5月
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Synthesis, crystal structure and dynamic behavior of naphthalene-based calix[3]amide: Cyclic trimers of 2-alkylamino-6-naphthoic acid 査読あり
Kosuke Katagiri, Kanako Sawano, Miho Okada, Shiho Yoshiyasu, Reiko Shiroyama, Norio Ikejima, Hyuma Masu, Takako Kato, Masahide Tominaga, Isao Azumaya
Journal of Molecular Structure 891 346 - 350 2008年4月
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Triple helical structure constructed by covalent bondings: effective synthesis by a pre-organized partial structure and helicity induced by aromatic-aromatic interactions
Tominaga Masahide, Masu Hyuma, Katagiri Kosuke, Azumaya Isao
TETRAHEDRON LETTERS 48 ( 25 ) 4369 - 4372 2007年6月
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Triple helical structure constructed by covalent bondings: effective synthesis by a pre-organized partial structure and helicity induced by aromatic–aromatic interactions 査読あり
Masahide Tominaga, Hyuma Masu, Kosuke Katagiri, Isao Azumaya
Tetrahedron Letters 48 4369 - 4372 2007年4月
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Facile synthesis of highly congested 1,2-diphosphinobenzenes from bis(phosphine)boronium salts
Yamamoto Yoshikazu, Koizumi Toru, Katagiri Kosuke, Furuya Yui, Danjo Hiroshi, Imamoto Tsuneo, Yamaguchi Kentaro
ORGANIC LETTERS 8 ( 26 ) 6103 - 6106 2006年12月
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Facile Synthesis of Highly Congested 1,2-Diphosphinobenzenes from Bis(phosphine)boronium Salts 査読あり
Yoshikazu Yamamoto, Toru Koizumi, Kosuke Katagiri, Yui Furuya, Hiroshi Danjo, Tsuneo Imamoto, Kentaro Yamaguchi
Organic Letters 8 6103 - 6106 2006年11月
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Spontaneous resolution of aromatic sulfonamides: Effective screening method and discrimination of absolute structure
Kato Takako, Okamoto Iwao, Tanatani Aya, Hatano Terutaka, Uchiyama Masanobu, Kagechika Hiroyuki, Masu Hyuma, Katagiri Kosuke, Tominaga Masahide, Yamaguchi Kentaro, Azumaya Isao
ORGANIC LETTERS 8 ( 22 ) 5017 - 5020 2006年10月
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Spontaneous Resolution of Aromatic Sulfonamides: Effective Screening Method and Discrimination of Absolute Structure 査読あり
Takako Kato, Iwao Okamoto, Aya Tanatani, Terutaka Hatano, Masanobu Uchiyama, Hiroyuki Kagechika, Hyuma Masu, Kosuke Katagiri, Masahide Tominaga, Kentaro Yamaguchi, Isao Azumaya
Organic Letters 8 5017 - 5020 2006年10月
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Four different types of hydrogen bonds observed in 1,2-bis(N-benzenesulfonylamino)benzenes due to conformational properties of the sulfonamide moiety
Kato Takako, Masu Hyuma, Takayanagi Hiroaki, Kaji Eisuke, Katagiri Kosuke, Tominaga Masahide, Azumaya Isao
TETRAHEDRON 62 ( 36 ) 8458 - 8462 2006年9月
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2-D coordination network of a cyclic amide with a lanthanide metal cation and its columnar stacking 査読あり
Hyuma Masu, Masahide Tominaga, Kosuke Katagiri, Takako Kato, Isao Azumaya
CrystEngComm 8 578 - 580 2006年7月
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Four different types of hydrogen bonds observed in 1,2-bis(N-benzenesulfonylamino)benzenes due to conformational properties of the sulfonamide moiety 査読あり
Takako Kato, Hyuma Masu, Hiroaki Takayanagi, Eisuke Kaji, Kosuke Katagiri, Masahide Tominaga, Isao Azumaya
Teterahedron 62 8458 - 8462 2006年6月
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P-Chiral Tetraphosphine Dirhodium Complex as a Catalyst for Asymmetric Hydrogenation: Synthesis, Structure, Enantioselectivity, and Mechanism. Stereoselective Formation of a Dirhodium Tetrahydride Complex and Its Reaction with Methyl (Z)-a-Acetamidocinnamate 査読あり
Tsuneo Imamoto, Keiji Yashio, Karen V. L. Crépy, Kosuke Katagiri, Hidetoshi Takahashi, Mitsuhiro Kouchi, Ilya D. Gridnev
Organometallics 25 908 - 914 2006年1月
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2-D coordination network of a cyclic amide with a lanthanide metal cation and its columnar stacking
Masu Hyuma, Tominaga Masahide, Katagiri Kosuke, Kato Takako, Azumaya Isao
CRYSTENGCOMM 8 ( 8 ) 578 - 580 2006年
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Calix[3]amides—bowl-shaped cyclic trimers toward building block for molecular recognition: self-complementary dimeric structure in the crystal 査読あり
Fumiaki Imabeppu, Kosuke Katagiri, Hyuma Masu, Takako Kato, Masahide Tominaga, Bruno Therrien, Hiroaki Takayanagi, Eisuke Kaji, Kentaro Yamaguchi, Hiroyuki Kagechika, Isao Azumaya
Tetrahedron Letters 47 413 - 416 2005年12月
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Construction of macrocyclic structure using conformational properties of secondary and tertiary aromatic amides 査読あり
Hyuma Masu, Takako Okamoto, Takako Kato, Kosuke Katagiri, Masahide Tominaga, Hiroaki Goda, Hiroaki Takayanagi, Isao Azumaya
Teterahedron Letters 47 803 - 807 2005年12月
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P-Chiral o-Phosphinophenol as a P/O Hybrid Ligand: Preparation and Use in Cu-Catalyzed Asymmetric Conjugate Addition of Diethylzinc to Acyclic Enones 査読あり
Yukitoshi Takahashi, Yoshikazu Yamamoto, Kosuke Katagiri, Hiroshi Danjo, Kentaro Yamaguchi, Tsuneo Imamoto
The Journal of Organic Chemistry 70 9009 - 9012 2005年9月
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Triple Helicate Constructed by Covalent Bondings: Crystal Structure and Effective Synthesis Based on Propeller-like Substructures 査読あり
Masahide Tominaga, Hyuma Masu, Kosuke Katagiri, Takako Kato, Isao Azumaya
Organic Letters 7 3785 - 3787 2005年7月
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Necleophilic aromatic substitution reactions of fluorobenzenechromium complexes with P-chiral secondary phosphine–boranes: synthesis of optically pure P-chiral (dually)arylphosphine–boranes
Kosuke Katagiri, Hiroshi Danjo, Kentaro Yamaguchi, Tsuneo Imamoto
Tetrahedron 61 4701 - 4707 2005年3月
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Nucleophilic aromatic substitution reactions of fluorobenzenechromium complexes with P-chiral secondary phosphine–boranes: synthesis of optically pure P-chiral(dialkyl)arylphosphine–boranes 査読あり
Kosuke Katagiri, Hiroshi Danjo, Kentaro Yamaguchi, Tsuneo Imamoto
Tetrahedron 2005 4701 - 4707 2005年3月
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Optically active 1,1'-di-tert-butyl-2,2'-dibenzophosphetenyl: a highly strained P-stereogenic diphosphine ligand 査読あり
Tsuneo Imamoto, Karen V. L. Crépy, Kosuke Katagiri
Tetrahedron: Asymmetry 15 2213 - 2218 2004年5月
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A novel P-chirogenic phosphine ligand, (S,S)-1,2-bis-[(ferrocenyl)methylphosphino]ethane: synthesis and use in rhodium-catalyzed asymmetric hydrogenation and palladium-catalyzed asymmetric allylic alkylation 査読あり
Nobuhiko Oohara, Kosuke Katagiri, Tsuneo Imamoto
Tetrahedron: Asymmetry 14 2171 - 2175 2003年5月
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Samarium(III) Tris(2,6-di-tert-butyl-4-methylphenoxide): Preparation, Properties, and Catalytic Activity in the Michael Type Reaction 査読あり
Kosuke Katagiri, Miyuki Kameoka, Masayoshi Nishiura, Tsuneo Imamoto
Chemistry Letters 31 426 - 427 2001年12月
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Isolation, X-ray Structural Characterization, and Reactivities of Diiodosamarium(II) Complexes Bearing Amide Compounds as Ligands 査読あり
Masayoshi Nishiura, Kosuke Katagiri, Tsuneo Imamoto
Bulletin of the Chemical Society of Japan 74 1417 - 1424 2001年1月
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