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Dive into the research topics where Katsushi Morimoto is active.

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Featured researches published by Katsushi Morimoto.


Journal of Fluorine Chemistry | 1992

Reaction of quinoxalin-2-ones with difluorocarbene

Katsushi Morimoto; Kenzi Makino; Gozyo Sakata

Abstract The reaction of quinoxalin-2-ones ( 1 ) with difluorocarbene derived from chlorodifluoro- methane(CHClF 2 ) has afforded 2-difluoromethoxyquinoxalines ( 2 ), 1-difluoromethyl- quinoxalin-2-ones ( 3 ) and 2-fluoroquinoxalines ( 4 ), and with difluorocarbene from dibromodifluoromethane (CBr 2 F 2 ) afforded 2-bromodifluoromethoxyquinoxalines ( 5 ), ( 2 ) and ( 4 ). Compounds 2 and 5 were readily converted into 4 under basic conditions. The reaction of 2-bromodifluoromethoxyquinoxaline ( 5a ) with poly(hydrogen fluoride) pyridine afforded 2-trifluoromethoxyquinoxaline ( 6a ).


Journal of Heterocyclic Chemistry | 1990

Synthesis of fluoromethyl, difluoromethyl and trifluoromethyl analogues of pyrazosulfuron-ethyl as herbicides

Katsushi Morimoto; Kenzi Makino; Susumu Yamamoto; Gozyo Sakata


Heterocycles | 1985

A facile synthesis of novel tricyclic compounds, tetrazoloquinoxalines and 1,2,4-triazoloquinoxalines

Kenji Makino; Gozyo Sakata; Katsushi Morimoto; Yoshinori Ochiai


Journal of Heterocyclic Chemistry | 1997

Synthesis of halosulfuron‐methyl via selective chlorination at 3‐ and/or 5‐position of pyrazole‐4‐carboxylates

Katsushi Morimoto; Toshiaki Sato; Susumu Yamamoto; Hiroshi Takeuchi


Archive | 1997

Herbicidal 2,6-disubstituted pyridine compounds and compositions

Katsushi Morimoto; Masatoshi Ohnari; Hiroyuki Furusawa; Takumi Terachi; Tsutomu Nawamaki; Kimihiro Ishikawa; Kunimitsu Nakahira; Chiaki Kawaguchi


Journal of Heterocyclic Chemistry | 1991

Synthesis of 5-chloropyrazoles by chlorodediazoniation with sulfur dioxide

Susumu Yamamoto; Katsushi Morimoto; Toshiaki Sato


Archive | 1998

Pyridine compounds and herbicides

Katsushi Morimoto; Hiroyuki Furusawa; Takumi Terachi; Tsutomu Nawamaki; Shigeomi Watanabe; Kunimitsu Nakahira; Junko Noguchi


Journal of Heterocyclic Chemistry | 1991

A facile synthesis of pyrazole-5-sulfonamide derivatives†

Susumu Yamamoto; Toshiaki Sato; Katsushi Morimoto; Kenzi Makino


Archive | 1988

Wheat growing process utilizing selective herebicide

Susumu Yamamoto; Takuya Kakuta; Toshiaki Sato; Katsushi Morimoto; Eiichi Oya; Takashi Ikai; Tsutomu Nawamaki


Archive | 1986

Pyrazolesulfonamide derivative, process for its production and herbicide containing it

Susumu Yamamoto; Takuya Kakuta; Toshiaki Sato; Katsushi Morimoto; Eiichi Oya; Takashi Ikai; Tsutomu Nawamaki

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Hideaki Suzuki

Jikei University School of Medicine

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