横山明弘

ヨコヤマアキヒロ (Akihiro Yokoyama)

基本情報

所属: 成蹊大学理工学部理工学科教授

学位: 博士（薬学）(東京大学)
修士（薬学）(東京大学)

J-GLOBAL ID: 200901053535020110
researchmap会員ID: 1000369933

外部リンク: http://www.ml.seikei.ac.jp/yokoyama/

研究キーワード

研究分野

論文

Synthesis, crystal structure, and properties of methyl-substituted coronene amide analogue

Kenta Rakumitsu, Miho Fujii, Sotaro Kusumoto, Shoko Kikkawa, Isao Azumaya, Akihiro Yokoyama

RSC Advances 12(40) 26411-26417 2022年

The palladium-mediated intramolecular biarylation of the cyclic triamide of 2-bromo-4-(isobutylamino)benzoic acid proceeded effectively by the introduction of three methyl groups and the use of tri-tert-butylphosphine as the ligand.
Synthesis of a coronene analogue containing an amide bond by Pd-mediated intramolecular C[sbnd]C bond formation of 2-halogenated 4-(alkylamino)benzoic acid cyclic trimer

Akihiro Yokoyama, Arisa Ishii, Tomoyuki Ohishi, Shoko Kikkawa, Isao Azumaya

Tetrahedron Letters 62 2021年1月5日
Development of Helical Aromatic Amide Foldamers with a Diphenylacetylene Backbone

Ko Urushibara, Tatsunori Yamada, Akihiro Yokoyama, Hirotoshi Mori, Hyuma Masu, Isao Azumaya, Hiroyuki Kagechika, Tsutomu Yokozawa, Aya Tanatani

The Journal of Organic Chemistry 85(4) 2019-2039 2020年2月21日
Synthesis and characterization of cyclobutenedione–bithiophene π-conjugated polymers: acetal-protecting strategy for Kumada–Tamao–Corriu coupling polymerization between aryl bromide and Grignard reagents

Tomoyuki Ohishi, Takuma Sone, Kohei Oda, Akihiro Yokoyama

RSC Advances (9) 40863-40872 2019年12月査読有り
Synthesis and structural analysis of conjugated benzoxazaborine derivatives

Tomoyuki Ohishi, Kaori Igarashi, Hiroki Kadosono, Shoko Kikkawa, Isao Azumaya, Akihiro Yokoyama

Tetrahedron Letters 59(47) 4153-4157 2018年11月21日査読有り
Effect of the α-substituted chiral side chain on the helical conformation of N-substituted poly(p-benzamide)

Akihiro Yokoyama, Tomoaki Saiki, Hyuma Masu, Isao Azumaya, Tsutomu Yokozawa

Polymer (United Kingdom) 134 175-180 2018年1月3日査読有り
Polymerization of 2,5-Diaminoterephthalic acid-Type Monomers for the Synthesis of Polyamides Containing Ladder Unit

Akihiro Yokoyama, Jinya Kuramochi, Ryohei Kiyota, Kazuki Kishimoto, Kazuto Takaishi, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 55(14) 2365-2372 2017年7月
Conformational and Optical Characteristics of Unidirectionally Twisted Binaphthyl-Bipyridyl Cyclic Dyads

Kazuto Takaishi, Jun Suzuki, Tatsuya Yabe, Hikaru Asano, Michihiro Nishikawa, Daisuke Hashizume, Atsuya Muranaka, Masanobu Uchiyama, Akihiro Yokoyama

ORGANIC LETTERS 17(16) 4098-4101 2015年8月査読有り
Poly(p-benzamide) having isopropyl-substituted chiral tri(ethylene glycol) side Chain: Synthesis and helical conformation

Akihiro Yokoyama, Suguru Nakano, Tomoaki Saiki, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 53(13) 1623-1628 2015年7月査読有り
Polymerization of 4,6-diaminoisophthalic acid-type monomers bearing anthranilic acid ester and isatoic anhydride moieties

Akihiro Yokoyama, Makoto Karasawa, Ryohei Kiyota, Masahisa Taniguchi, Yuta Hirano, Yoshihiro Ohta, Tsutomu Yokozawa

POLYMER JOURNAL 47(4) 348-351 2015年4月査読有り
Chain-Growth Condensation Polymerization Approach to Synthesis of Well-Defined Polybenzoxazole: Importance of Higher Reactivity of 3-Amino-4-Hydroxybenzoic Acid Ester Compared to 4-Amino-3-Hydroxybenzoic Acid Ester

Yoshihiro Ohta, Tetsurou Niiyama, Akihiro Yokoyama, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 52(12) 1730-1736 2014年6月査読有り
Synthesis of Well-Defined, Soluble Poly(3-alkyl-4-benzamide) by Chain-Growth Condensation Polymerization

Yoshihiro Ohta, Makoto Karasawa, Tetsurou Niiyama, Akihiro Yokoyama, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 52(3) 360-365 2014年2月査読有り
Binaphthyl-based chiral macrocyclophanes with variously sized cavities: D-n-symmetrical structure constructed from unidirectionally-inclined rod segments

Kazuto Takaishi, Tatsuya Yabe, Masanobu Uchiyama, Akihiro Yokoyama

TETRAHEDRON 70(3) 730-734 2014年1月査読有り
Successive Formation of Two Amide Linkages between Two Benzene Rings

Akihiro Yokoyama, Makoto Karasawa, Masahisa Taniguchi, Tsutomu Yokozawa

CHEMISTRY LETTERS 42(6) 641-642 2013年6月査読有り
Synthesis of polystyrene-graft-poly(p-benzamide) by chain-growth condensation polymerization and radical polymerization: Improvement of thermal properties of polystyrene

Yoshihiro Ohta, Tadahiko Shirakura, Akihiro Yokoyama, Tsutomu Yokozawa

Journal of Polymer Science, Part A: Polymer Chemistry 51(8) 1887-1892 2013年4月15日査読有り
Synthesis of 2,3-Bis(halomethyl)quinoxaline Derivatives and Evaluation of Their Antibacterial and Antifungal Activities

Hisato Ishikawa, Takayuki Sugiyama, Akihiro Yokoyama

CHEMICAL & PHARMACEUTICAL BULLETIN 61(4) 438-444 2013年4月査読有り
Synthesis of well-defined, amphiphilic poly(ethylene glycol)-b- hyperbranched polyamide

Yoshihiro Ohta, Teruaki Kanou, Akihiro Yokoyama, Tsutomu Yokozawa

Journal of Polymer Science, Part A: Polymer Chemistry 51(17) 3762-3766 2013年査読有り
Investigation of Catalyst-Transfer Condensation Polymerization for the Synthesis of n-Type -Conjugated Polymer, Poly(2-dioxaalkylpyridine-3,6-diyl)

Yutaka Nanashima, Rena Shibata, Ryo Miyakoshi, Akihiro Yokoyama, Tsutomu Yokozawa

Journal of Polymer Science Part A: Polymer Chemistry (DOI: 10.1002/pola.26152) 50(17) 3628-3640 2012年9月査読有り
Three-arm star block copolymers of aromatic polyether and polystyrene from chain-growth condensation polymerization, atom transfer radical polymerization, and click reaction

Yuka Yamazaki, Akihiro Yokoyama, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 50(17) 3648-3655 2012年9月査読有り
Synthesis of Well-Defined, Water-Soluble Hyperbranched Polyamides by Chain-Growth Condensation Polymerization of AB(2) Monomer

Yoshihiro Ohta, Yusuke Kamijyo, Akihiro Yokoyama, Tsutomu Yokozawa

POLYMERS 4(2) 1170-1182 2012年6月査読有り
Oxovanadium complexes with quinoline and pyridinone ligands: Syntheses of the complexes and effect of alkyl chains on their apoptosis-inducing activity in leukemia cells

Tomoko Yamaguchi, Shinya Watanabe, Yuriko Matsumura, Yoshikazu Tokuoka, Akihiro Yokoyama

BIOORGANIC & MEDICINAL CHEMISTRY 20(9) 3058-3064 2012年5月査読有り
Synthesis and antimicrobial activity of 2,3-bis(bromomethyl)quinoxaline derivatives

Hisato Ishikawa, Takayuki Sugiyama, Keisuke Kurita, Akihiro Yokoyama

BIOORGANIC CHEMISTRY 41-42 1-5 2012年4月査読有り
Synthesis of Oxovanadium Complexes and Their Apoptosis-Inducing Activity in Leukemia Cells

Tomoko Yamaguchi, Shinya Watanabe, Yuriko Matsumura, Yoshikazu Tokuoka, Akihiro Yokoyama

CHEMICAL & PHARMACEUTICAL BULLETIN 60(4) 508-512 2012年4月査読有り
Synthesis of Novel Blue-Light-Emitting Polypyridine

Yutaka Nanashima, Akihiro Yokoyama, Tsutomu Yokozawa

Journal of Polymer Science Part A: Polymer Chemistry (DOI: 10.1002/pola.25891) 50(6) 1054-1061 2012年3月査読有り
Synthesis of Well-Defined Poly(2-alkoxypyridine-3,5-diyl) via Ni-Catalyst-Transfer Condensation Polymerization

Yutaka Nanashima, Akihiro Yokoyama, Tsutomu Yokozawa

MACROMOLECULES 45(5) 2609-2613 2012年3月査読有り
Synthesis of linear and cyclic aromatic peptides with fixed conformation owing to intramolecular hydrogen bonding by condensation polymerization method

Tomoyuki Ohishi, Toshiya Suzuki, Tetsurou Niiyama, Koichiro Mikami, Akihiro Yokoyama, Kosuke Katagiri, Isao Azumaya, Tsutomu Yokozawa

TETRAHEDRON LETTERS 52(52) 7067-7070 2011年12月査読有り
Synthesis and Properties of a Variety of Well-Defined Hyperbranched N-Alkyl and N-H Polyamides by Chain-Growth Condensation Polymerization of AB(2) Monomers

Yoshihiro Ohta, Yusuke Kamijyo, Shuichi Fujii, Akihiro Yokoyama, Tsutomu Yokozawa

MACROMOLECULES 44(13) 5112-5122 2011年7月査読有り
Synthesis of Poly(naphthalenecarboxamide)s with Low Polydispersity by Chain-Growth Condensation Polymerization

Koichiro Mikami, Hiroaki Daikuhara, Jyunya Kasama, Akihiro Yokoyama, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 49(14) 3020-3029 2011年7月査読有り
Precision Synthesis of Poly(3-hexylthiophene) from Catalyst-Transfer Suzuki-Miyaura Coupling Polymerization

Tsutomu Yokozawa, Ryosuke Suzuki, Masataka Nojima, Yoshihiro Ohta, Akihiro Yokoyama

MACROMOLECULAR RAPID COMMUNICATIONS 32(11) 801-806 2011年6月査読有り
Efficient Low-Temperature Atom Transfer Radical Coupling and Its Application to Synthesis of Well-Defined Symmetrical Polybenzamides

Chih-Feng Huang, Yoshihiro Ohta, Akihiro Yokoyama, Tsutomu Yokozawa

MACROMOLECULES 44(11) 4140-4148 2011年6月査読有り
Synthesis and Helical Properties of N-Substituted p-Benzamide Random Copolymers Possessing Chiral/Achiral and (S)/(R) Side Chains

Akihiro Yokoyama, Yuko Inagaki, Tomomi Ono, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 49(6) 1387-1395 2011年3月査読有り
Synthesis of a Variety of Star-Shaped Polybenzamides via Chain-Growth Condensation Polymerization with Tetrafunctional Porphyrin Initiator

Kazuo Yoshino, Akihiro Yokoyama, Tsutomu Yokozawa

Journal of Polymer Science Part A: Polymer Chemistry (DOI: 10.1002/pola.24511) 49(4) 986-994 2011年2月査読有り
Catalyst-Transfer Suzuki−Miyaura Coupling Polymerization for Precision Synthesis of Poly(p-phenylene)

Tsutomu Yokozawa, Haruhiko Kohno, Yoshihiro Ohta, Akihiro Yokoyama

Macromolecules (DOI: 10.1021/ma101073x) 43(17) 7095-7100 2010年9月査読有り
Synthesis of Polybenzamide-b-Polystyrene Block Copolymer via Combination of Chain-Growth Condensation Polymerization and Atom Transfer Radical Polymerization

Chih-Feng Huang, Akihiro Yokoyama, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 48(13) 2948-2954 2010年7月査読有り
Synthesis of Core Cross-Linked Star Polymers Consisting of Well-Defined Aromatic Polyamide Arms

Tomoyuki Ohishi, Tomohiro Masukawa, Shuichi Fujii, Akihiro Yokoyama, Tsutomu Yokozawa

MACROMOLECULES 43(7) 3206-3214 2010年4月査読有り
Chain-Growth Condensation Polymerization of 4-Aminobenzoic Acid Esters Bearing Tri(ethylene glycol) Side Chain with Lithium Amide Base

Kazuo Yoshino, Kotaro Hachiman, Akihiro Yokoyama, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 48(6) 1357-1363 2010年3月査読有り
Well-Defined Star-Shaped Poly(p-benzamide) via Chain-Growth Condensation Polymerization: Use of Tetra-Functional Porphyrin Initiator to Optimize Star Polymer Formation

Kazuo Yoshino, Akihiro Yokoyama, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 47(22) 6328-6332 2009年11月査読有り
Synthesis of Well-Defined Polybenzamide-block-Polystyrene by Combination of Chain-Growth Condensation Polymerization and RAFT Polymerization

Tomohiro Masukawa, Akihiro Yokoyama, Tsutomu Yokozawa

MACROMOLECULAR RAPID COMMUNICATIONS 30(16) 1413-1418 2009年8月査読有り
Synthesis of Well-Defined Miktoarm Star Copolymers of Aromatic Polyether and Polystyrene by Chain-Growth Condensation Polymerization and Atom Transfer Radical Polymerization

Yuka Yamazaki, Naomi Ajioka, Akihiro Yokoyama, Tsutomu Yokozawa

MACROMOLECULES 42(3) 606-611 2009年2月査読有り
色材における基礎科学講座(第XVIII講)―精密高分子合成―4.縮合系高分子

大石智之, 横山明弘, 横澤勉

色材協会誌 82(1) 36-42 2009年1月20日
Successive Chain-Growth Condensation Polymerization for the Synthesis of Well-Defined Diblock Copolymers of Aromatic Polyamide and Aromatic Polyether

Akihiro Yokoyama, Tomohiro Masukawa, Yuka Yamazaki, Tsutomu Yokozawa

MACROMOLECULAR RAPID COMMUNICATIONS 30(1) 24-28 2009年1月査読有り
Synthesis of Well-Defined Hyperbranched Polyamides by Condensation Polymerization of AB(2) Monomer through Changed Substituent Effects

Yoshihiro Ohta, Shuichi Fujii, Akihiro Yokoyama, Taniyuki Furuyama, Masanobu Uchiyama, Tsutomu Yokozawa

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 48(32) 5942-5945 2009年
Synthesis via Chain-Growth Condensation Polymerization and Gelating Properties of a Variety of Block Copolymers of Meta- and Para-Substituted Aromatic Polyamides

OHISHI Tomoyuki, SUGI Ryuji, YOKOYAMA Akihiro, YOKOZAWA Tsutomu

Macromolecules 41(24) 9683-9691 2008年12月23日
Importance of the Order of Successive Catalyst-transfer Condensation Polymerization in the Synthesis of Block Copolymers of Polythiophene and Poly(p-phenylene)

Ryo Miyakoshi, Akihiro Yokoyama, Tsutomu Yokozawa

CHEMISTRY LETTERS 37(10) 1022-1023 2008年10月査読有り
Precision Synthesis of Poly (N-hexylpyrrole) and Its Diblock Copolymer with Poly(p-phenylene) via Catalyst-Transfer Polycondensation

Akihiro Yokoyama, Akira Kato, Ryo Miyakoshi, Tsutomu Yokozawa

MACROMOLECULES 41(20) 7271-7273 2008年10月査読有り
One-pot synthesis of cyclic triamides with a triangular cavity from trans-stilbene and Diphenylacetylene monomers

Akihiro Yokoyama, Takurou Maruyama, Kei Tagami, Hyuma Masu, Kosuke Katagiri, Isao Azumaya, Tsutomu Yokozawa

ORGANIC LETTERS 10(15) 3207-3210 2008年8月査読有り
Synthesis of well-defined rod-coil diblock copolymer of aromatic polyether and polyacrylonitrile by chain-growth condensation polymerization and atom transfer radical polymerization

Naomi Ajioka, Akihiro Yokoyama, Tsutomu Yokozawa

MACROMOLECULAR RAPID COMMUNICATIONS 29(8) 665-671 2008年4月査読有り
Development of catalyst-transfer condensation polymerization. Synthesis of pi-conjugated polymers with controlled molecular weight and low polydispersity

Ryo Miyakoshi, Akihiro Yokoyama, Tsutomu Yokozawa

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 46(3) 753-765 2008年2月査読有り
Base-promoted condensation polymerization of aminoesters with diphenylacetylene and trans-stilbene backbones

Akihiro Yokoyama, Yuuki Shimizu, Jun-ichiro Saito, Tsutomu Yokozawa

CHEMISTRY LETTERS 37(1) 8-9 2008年1月査読有り
Reaction Control in Condensation Polymerization

Tsutomu Yokozawa, Naomi Ajioka, Akihiro Yokoyama

NEW FRONTIERS IN POLYMER SYNTHESIS 217 1-77 2008年査読有り

MISC

Catalyst-transfer Suzuki-Miyaura coupling polymerization

Tsutomu Yokozawa, Haruhiko Kohno, Ryosuke Suzuki, Masatoshi Nojima, Rena Shibata, Akihiro Yokoyama

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 242 2011年8月
Chiral Amplification Based on Sergeants and Soldiers Effect in Helically Folded Poly(naphthalenecarboxamide)

Koichiro Mikami, Hiroaki Daikuhara, Yuko Inagaki, Akihiro Yokoyama, Tsutomu Yokozawa

Macromolecules (DOI: 10.1021/ma200055g) 44(9) 3185-3188 2011年5月
Chain-Growth Condensation Polymerization for the Synthesis of Well-Defined Condensation Polymers and pi-Conjugated Polymers

Tsutomu Yokozawa, Akihiro Yokoyama

CHEMICAL REVIEWS 109(11) 5595-5619 2009年11月
Helical Folding of Poly(naphthalenecarboxamide) Prompted by Solvophobic Effect

Koichiro Mikami, Aya Tanatani, Akihiro Yokoyama, Tsutomu Yokozawa

MACROMOLECULES 42(12) 3849-3851 2009年6月
POLY 217-Synthesis of well-defined diblock copolymer of aromatic polyether and poly(methyl methacrylate) by chain-growth condensation polymerization and atom transfer radical polymerization

Tsutomu Yokozawa, Tomoyuki Ando, Naomi Ajioka, Akihiro Yokoyama

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 236 2008年8月

もっとみる

共同研究・競争的資金等の研究課題

新規なベンゾオキサザボリン骨格を有する有機構造体の構築と結合組み換えによる機能化

日本学術振興会科学研究費助成事業 2018年4月 - 2020年3月

大石智之, 横山明弘

産業財産権

特開2014-051480 カルコン系化合物又はその塩、及び工業用殺菌組成物

横山明弘, 石川久登, 杉山孝之, 鈴木康紀

一覧へ戻る

横山 明弘

基本情報

研究キーワード

研究分野

論文

MISC

共同研究・競争的資金等の研究課題

産業財産権

横山明弘