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Dive into the research topics where Tokuhiro Watanabe is active.

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Featured researches published by Tokuhiro Watanabe.


Journal of Heterocyclic Chemistry | 1982

Syntheses and reactions of some 2,3‐disubstituted pyrazine monoxides

Akihiro Ohta; Sawako Masano; Sachiko Iwakura; Akiko Tamura; Hiroko Watahiki; Mayumi Tsutsui; Yasuo Akita; Tokuhiro Watanabe; Teruo Kurihara


Synthesis | 1980

A Convenient Synthesis of Methylamino and Dimethylamino Substituted Aromatic Compounds

Tokuhiro Watanabe; Yukiko Tanaka; Kohko Sekiya; Yasuo Akita; Akihiro Ohta


Journal of Heterocyclic Chemistry | 1996

A facile conversion of ethoxydihydropyrans to 4-cyanoethylisoxazoles

Masashige Yamauchi; S. Akiyama; Tokuhiro Watanabe; K. Okamura; T. Date


Journal of Heterocyclic Chemistry | 1983

Synthesis of some alkyl- and arylimidazoles

Tokuhiro Watanabe; J. Nishiyama; R. Hirate; K. Uehara; M. Inoue; K. Matsumoto; Akihiro Ohta


Journal of Heterocyclic Chemistry | 1982

Some reactions of mono substituted pyrazine monoxides

Akihiro Ohta; Tokuhiro Watanabe; Yasuo Akita; Maki Yoshida; Suzumi Toda; Tomoko Akamatsu; Hiroko Ohno; Akiko Suzuki


Heterocycles | 1986

Coupling Reaction of Chloropyrazines and Their N-Oxides with Tetraphenyltin

Akihiro Ohta; Masakatsu Ohta; Tokuhiro Watanabe


Journal of Heterocyclic Chemistry | 1983

2-Acyloxypyrazines. Convenient acylating agents for amines

Akihiro Ohta; Makoto Shimazaki; Hideo Tamamura; Yukari Mamiya; Tokuhiro Watanabe


Journal of Heterocyclic Chemistry | 1985

Reaction of 2,5-diisopropyl- and 2,5-di-sec-butylpyrazine 1-oxide. Derivatives with phosphoryl chloride and acetic anhydride

Masami Inoue; Reiko Abe; Hideo Tamamura; Minoru Ohta; Keiko Asami; Hisayuki Kitani; Hideko Kamei; Yumiko Nakamura; Tokuhiro Watanabe; Akihiro Ohta


Journal of Heterocyclic Chemistry | 1983

Reactions of the monoxides of 2,6-disubstituted pyrazines with phosphoryl chloride and acetic anhydride

Akihiro Ohta; Akiko Imazeki; Yokho Itoigawa; Hiroko Yamada; Chieko Suga; Chiseko Takagai; Hiroko Sano; Tokuhiro Watanabe


Heterocycles | 1985

Reaction of chloropyrazine N-oxides with trimethylaluminum

Akihiro Ohta; A. Inoue; K. Ohtsuka; Tokuhiro Watanabe

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