Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Kanako Nozawa-Kumada"'
Autor:
Kanako Nozawa-Kumada, Masahito Hayashi, Eunsang Kwon, Masanori Shigeno, Akira Yada, Yoshinori Kondo
Publikováno v:
Molecules, Vol 28, Iss 18, p 6682 (2023)
Herein, we report the copper-catalyzed dehydrogenative C(sp2)–N bond formation of 4-pentenamides via nitrogen-centered radicals. This reaction provides a straightforward and efficient preparation method for γ-alkylidene-γ-lactams. Notably, we cou
Externí odkaz:
https://doaj.org/article/6c6a463d870946b3aa7688862aef4ba2
Publikováno v:
The Journal of Organic Chemistry. 88:1796-1802
Publikováno v:
Organic Letters. 24:7227-7231
Herein, we report that palladium catalyzes the borylative cyclization of α-(2-bromoaryl) ketones to afford 1,2-benzoxaborinines. The developed system is compatible with a variety of functionalities (Me
Publikováno v:
Organic Letters. 24:4825-4830
Autor:
Masanori Shigeno, Akihisa Kajima, Eito Toyama, Toshinobu Korenaga, Hiroyuki Yamakoshi, Kanako Nozawa‐Kumada, Yoshinori Kondo
Publikováno v:
Chemistry – A European Journal. 29
We demonstrate that lithium hexamethyldisilazide (LiHMDS) acts as an effective base for deprotonative coupling reactions of toluenes with ketones to afford stilbenes. Various functionalities (halogen, OCF3, amide, Me, aryl, alkenyl, alkynyl, SMe, and
Publikováno v:
Organic & Biomolecular Chemistry. 20:5948-5952
We developed a novel copper-catalyzed benzolactone synthesis via 1,5-HAT of amidyl radicals from 2-alkylbenzamides under O2 atmosphere.
Autor:
Masanori Shigeno, Kazutoshi Hayashi, Toshinobu Korenaga, Kanako Nozawa-Kumada, Yoshinori Kondo
Publikováno v:
Organic Chemistry Frontiers. 9:3656-3663
The organic superbase t-Bu-P4 catalyzes the demethylation reactions of methoxyarenes in the presence of alkanethiol and hexamethyldisilazane.
Autor:
Takayuki Kaneko, Yuichiro Mita, Kanako Nozawa-Kumada, Masana Yazaki, Mieko Arisawa, Etsuo Niki, Noriko Noguchi, Yoshiro Saito
Hydrogen sulfide, hydropersulfides, and hydropolysulfides have been revealed to play important physiological roles such as cell signaling and protection against oxidative stress, but the underlying mechanisms and dynamics of action remain elusive. It
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cb598e026681a161b46c2f094d91deb
Autor:
Taro Mizuno, Kaori Itto-Nakama, Saori Tanii, Mieko Arisawa, Kanako Nozawa-Kumada, Miyu Furuta
Publikováno v:
Organic Letters. 23:9382-9386
Unsymmetric di(heteroaryl)ureas such as HetAr1-NHCONH-HetAr2 are efficiently synthesized from two symmetric ureas, HetAr1-NHCONH-HetAr1 and HetAr2-NHCONH-HetAr2, by rhodium-catalyzed exchange reactions. The equilibrium in some of the reactions can be
Autor:
Kanako Nozawa‐Kumada, So Onuma, Kanako Ono, Tomohiro Kumagai, Yuki Iwakawa, Katsuhiko Sato, Masanori Shigeno, Yoshinori Kondo
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany).
A transition-metal-free intermolecular coupling reaction of halocompounds with styrenes in the presence of NaH and 1,10-phenanthroline was developed. This reaction afforded hydrocarbonated products with complete anti-Markovnikov selectivity. Our meth