Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Asumi Sakai"'
Autor:
Rikuto Tanaka, Shiho Ochiai, Asumi Sakai, Yoshinosuke Usuki, Bubwoong Kang, Tetsuro Shinada, Tetsuya Satoh
Publikováno v:
Chemistry, an Asian journal.
The C-H alkenylation of N-acetylcarbazoles proceeds smoothly at the C1-position in the presence of a cationic Cp*Rh(III) catalyst to produce 1-alkenylcarbazoles. The use of a cationic CpERh(III) catalyst enables further alkenylation to give 1,8-dialk
Publikováno v:
Chemistry Letters. 50:585-588
The rhodium(III)-catalyzed annulative coupling of 9-benzoylcarbazoles with internal alkynes proceeds efficiently through ortho C–H and C–N bond cleavages. This reaction provides direct access to va...
Autor:
Tetsuya Satoh, Yoko Yasuno, Hironori Okamura, Masaki Kuse, Bubwoong Kang, Asumi Sakai, Tetsuro Shinada
Publikováno v:
Bulletin of the Chemical Society of Japan. 93:993-999
N-acylation reaction offers an opportunity to develop an efficient synthesis of amide group-containing molecules. We found that N-acyl carbazoles showed remarkable selectivity in transamidation. St...
Autor:
Masaki Kuse, Yoko Yasuno, Asumi Sakai, Maiko Moriguchi, Rubi Nakashima, Tetsuro Shinada, Yasuaki Morita, Tetsuya Sato, Yuki Shimizu, Bubwoong Kang
We report a highly primary alcohol-selective aroylation reaction using N-aroylcarbazoles (NAroCs). The aroylationproceeded smoothly in the presence of DBU, which most likely works as a general base catalyst in the reaction system. The synthetic utili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::987e3e0cb992059c2039227bcded65da
https://doi.org/10.26434/chemrxiv.12444797
https://doi.org/10.26434/chemrxiv.12444797
Autor:
Shingo Akiyama, Masaru Furuya, Asumi Sakai, Muneki Ichikawa, Hiroaki Horiuchi, Yuta Gomibuchi, Satoshi Ito, Toshitada Yoshihara, Remi Ikeda, Seiji Tobita, Tetsuo Okutsu
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 339:19-24
A silyl-substituted tetrabenzoporphyrin derivative has been designed to improve the light absorption efficiency of the corresponding silyl-substituted porphyrin derivative via small chemical modifications. By extension of the π-conjugated system of
Autor:
Seiji Tobita, Asumi Sakai, Daisuke Suda, Tetsuo Okutsu, Hiroaki Horiuchi, Keisuke Terashima, Toshitada Yoshihara, Atsushi Kobayashi
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 321:72-78
We have introduced central metal to 5,10,15,20-tetrakis(3′-trimethylsilyl-5′-carboxyphenyl)porphyrin tetrasodium ( 1 ), which shows high photodynamic activity. As central metals, Zn and Pd have been studied, and Zn and Pd improved the quantum yie
Autor:
Asumi Sakai, Susumu Kawauchi, Yoshihiro Hayashi, Masahiro Miura, Tomoaki Hinoue, Takeshi Okada, Tetsuya Satoh, Kona Chandrababunaidu
Publikováno v:
The Journal of organic chemistry. 83(10)
The rhodium(III)-catalyzed direct alkenylation of N-phenylindole-3-carboxylic acids with alkenes including acrylate ester, acrylamide, and acrylonitrile proceeds smoothly at the C4-position through regioselective C-H bond cleavage directed by the car
Autor:
Takeshi Okada, Asumi Sakai, Tomoaki Hinoue, Tetsuya Satoh, Yoshihiro Hayashi, Susumu Kawauchi, Chandrababunaidu, Kona, Masahiro Miura
Publikováno v:
Journal of Organic Chemistry; 5/18/2018, Vol. 83 Issue 10, p5639-5649, 11p
Autor:
Keiko Matsubara, Zhuan Li, Kunitomo Watanabe, Tsugiya Murayama, Kazuhiko Akuzawa, Asumi Sakai, Hidetaka Sadanari, Rie Yamada, Mamoru Koketsu
Publikováno v:
Antiviral chemistrychemotherapy. 19(3)
Background: Effective new anti-human cytomegalovirus (HCMV) agents and regimens need to be developed. We examined the anti-HCMV properties of crude extract (True World Extract of Bambuseae sasa [TWEBS]) and five compounds ( p-coumaric acid, 3-hydroxy