研究者詳細 - 阿部　匠

論文 - 阿部　匠

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Direct C4-Benzylation of Indoles via Tandem Benzyl Claisen/Cope Rearrangements 査読

Takumi Abe, Yuta Kosaka, Miku Asano, Natsuki Harasawa, Akane Mishina, Misato Nagasue, Yuri Sugimoto, Kazuaki Katakawa, Shunsuke Sueki, Masahiro Anada, Koji Yamada

Organic Letters 21 ( 3 ) 826 - 829 2019年2月

Total synthesis of pyrano[3,2-e]indole alkaloid fontanesine B by a double cyclization strategy 査読

Tomoki Itoh, Yuusuke Chiba, Shunsuke Kawaguchi, Yuki Koitaya, Yuuma Yoneta, Koji Yamada, Takumi Abe

RSC Advances 9 ( 18 ) 10420 - 10424 2019年

Biomimetic Synthesis of Iheyamine A from Spirocyclic Oxindoles 査読

Takumi Abe, Koji Yamada, Syuhei Satake

HETEROCYCLES 99 ( 0 ) 379 - 379 2019年

Double “Open and Shut” Transformation of γ-Carbolines Triggered by Ammonium Salts: One-Pot Synthesis of Multiheterocyclic Compounds 査読

Takumi Abe, Haruka Shimizu, Shiori Takada, Takahiro Tanaka, Mai Yoshikawa, Koji Yamada

Organic Letters 20 ( 6 ) 1589 - 1592 2018年3月

Dehydrative Mannich-Type Reaction for the Synthesis of Azepinobisindole Alkaloid Iheyamine A 査読

Takumi Abe, Koji Yamada

Organic Letters 20 ( 5 ) 1469 - 1472 2018年3月

Synthesis of Phaitanthrin E and Tryptanthrin through Amination/Cyclization Cascade 査読

Takumi Abe, Masaru Terasaki

Helvetica Chimica Acta 101 ( 2 ) e1700284 2018年2月

Radical Cyclizations of Aryl Bromides for Synthesis of Cyclopenta[b]Indoles from Vince Lactam 査読

Takumi Abe, Tsuyoshi Morita, Koji Yamada

HETEROCYCLES 97 ( 0 ) 141 - 141 2018年

Nazarov cyclization of an indolyl vinyl ketone promoted by acetyl chloride and sodium iodide: Formal synthesis of Bruceolline e 査読

Takumi Abe

Heterocycles 96 ( 3 ) 490 - 500 2018年

カスケード反応を用いたインドロキナゾリンアルカロイドの合成研究査読

阿部匠

有機合成化学協会誌 76 ( 8 ) 802 - 809 2018年

担当区分：筆頭著者,　最終著者,　責任著者記述言語：日本語出版者・発行元：公益社団法人有機合成化学協会

<p>We describe the total synthesis of indolo[2,1-b]quinazoline alkaloids tryptanthrin (1a), candidine (2), phaitanthrins A (3), B (4), C (5), cruciferane (8), and cephalanthrin A (9) using oxidative cascade sequences as the key step. Phaitanthrin E (7a) was synthesized by a novel methodology that features a concise approach involving the intermolecular condensation and intramolecular aryl C-H amination mediated by Cu-complexes to construct the indolo[2,1-b]quinazoline core. Moreover, an acid catalyzed one-pot synthesis of phaitanthrin E (7a) via intermolecular amination/intramolecular cyclization cascade using NCS was also developed.</p>

DOI： 10.5059/yukigoseikyokaishi.76.802

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An Ullmann N-arylation/2-amidation cascade by self-relay copper catalysis: one-pot synthesis of indolo[1,2-a]quinazolinones 査読

Takumi Abe, Yuka Takahashi, Yuki Matsubara, Koji Yamada

ORGANIC CHEMISTRY FRONTIERS 4 ( 11 ) 2124 - 2127 2017年11月

C4 Pictet–Spengler Reactions for the Synthesis of Core Structures in Hyrtiazepine Alkaloids 査読

Takumi Abe, Koji Yamada, Tomohiro Haruyama

Synthesis 49 ( 18 ) 4141 - 4150 2017年9月

2-Hydroxyindoline-3-triethylammonium Bromide: A Reagent for Formal C3-Electrophilic Reactions of Indoles 査読

Takumi Abe, Takuro Suzuki, Masahiro Anada, Shigeki Matsunaga, Koji Yamada

ORGANIC LETTERS 19 ( 16 ) 4275 - 4278 2017年8月

A copper-catalyzed Ritter-type cascade via iminoketene for the synthesis of quinazolin-4(3H)-ones and diazocines 査読

Takumi Abe, Koshiro Kida, Koji Yamada

CHEMICAL COMMUNICATIONS 53 ( 31 ) 4362 - 4365 2017年4月

Concise Syntheses of Hyrtioreticulins C and D via a C-4 Pictet–Spengler Reaction: Revised Signs of Specific Rotations 査読

Takumi Abe, Koji Yamada

Journal of Natural Products 80 ( 2 ) 241 - 245 2017年2月

One-pot synthesis of fused 2-pyridones from heteroarylacrylic acid via curtius rearrangement & microwave-assisted thermal electrocyclization 査読

Takashi Nishiyama, Noriyuki Hatae, Kaori Hayashi, Manami Obata, Kimiko Taninaka, Masahiro Yamane, Shota Oda, Takumi Abe, Minoru Ishikura, Satoshi Hibino, Tominari Choshi

Heterocycles 95 ( 1 ) 251 - 267 2017年