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Tamotsu Yamamoto

Tokyo Institute of Technology

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Publication

Featured researches published by Tamotsu Yamamoto.

Tetrahedron | 1978

Preparation and reactions of s,s-dimethyl-n-(2,4-dinitrophenyl)sulfilimine

Tamotsu Yamamoto; Y. Harigaya; Makoto Okawara

Abstract S,S-Dimethyl-N-(2,4-dinitrophenyl)sulfilimine( 4a ) has been prepared in good yield by use of DMSO, 2,4-dinitroaniline and phosphorus pentoxide in DMF and the role of DMF in this System is discussed. The method has been applied successfully to the syntheses of several sulfilimines. The reactions of 4a with protonic compounds show an interesting ylide-exchange reaction.

Chemistry Letters | 1975

Synthesis and reaction of new type I-N ylide, N-tosyliminoiodinane.

Yorinobu Yamada; Tamotsu Yamamoto; Makoto Okawara

Chemistry Letters | 1975

Studies on the michael-type reaction of S-vinyl sulfilimine.

Tamotsu Yamamoto; Makoto Okawara

Bulletin of the Chemical Society of Japan | 1984

Preparation of Tetraalkylammonium N-Chloro-p-toluenesulfonamides and Their Application to Imination of Phosphorus Compounds and Sulfides

Tamotsu Yamamoto; Daisaburo Yoshida; Jun Hojyo; Hiranari Terauchi

Bulletin of the Chemical Society of Japan | 1979

Preparation of S-Vinylsulfilimines

Tamotsu Yamamoto; Masa-aki Kakimoto; Makoto Okawara

Tetrahedron Letters | 1977

Reaction of s-vinyl sulfilimines with carbanions synthesis of β-substituted vinyl sulfides

Tamotsu Yamamoto; Masa-aki Kakimoto; Makoto Okawara

Tetrahedron Letters | 1979

Rearrangement of S-(2-substituted vinyl) sulfilimines o N-allyltosylamides. Application to transformation of carbonyl compounds into N-allyltosylamide (allylamines).

Masa-aki Kakimoto; Tamotsu Yamamoto; Makoto Okawara

Bulletin of the Chemical Society of Japan | 1983

Preparation of alkanesulfenamides by selective elimination of t-butyl group in S-alkyl-S-t-butylsulfilimines.

Tamotsu Yamamoto; Masa-aki Kakimoto; Takeshi Maejima; Makoto Okawara

Bulletin of the Chemical Society of Japan | 1978

A New Route to o-Methylthiomethylated Phenols by Use of S,S-Dimethylsulfilimines

Tamotsu Yamamoto; Makoto Okawara

Bulletin of the Chemical Society of Japan | 1980

Studies on bromites. III. Isolation and characterization of quaternary ammonium bromites.

Toshifumi Kageyama; Tamotsu Yamamoto

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Makoto Okawara

Tokyo Institute of Technology

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Masa-aki Kakimoto

Tokyo Institute of Technology

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Toshifumi Kageyama

Kanto Gakuin University

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Daisaburo Yoshida

Kanto Gakuin University

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Y. Harigaya

Tokyo Institute of Technology

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Yorinobu Yamada

Tokyo Institute of Technology

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