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Takashi Tozawa

University of Tokyo

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Publication

Featured researches published by Takashi Tozawa.

Chemistry Letters | 2006

Enantioselective synthesis of 3,4-dihydropyran-2-ones by chiral quaternary ammonium phenoxide-catalyzed tandem michael addition and lactonization

Takashi Tozawa; Yoshinobu Yamane; Teruaki Mukaiyama

Chemistry Letters | 2004

Lithium Alkoxide-promoted Michael Reaction between Silyl Enolates and α, β-Unsaturated Carbonyl Compounds

Teruaki Mukaiyama; Takashi Tozawa; Hidehiko Fujisawa

Bulletin of the Chemical Society of Japan | 1997

Asymmetric Allylation of Carbonyl Compounds with Tartrate-Modified Chiral Allylic Tin Reagents

Koji Yamada; Takashi Tozawa; Minoru Nishida; Teruaki Mukaiyama

Chemistry Letters | 2004

An Efficient Synthesis of 3,4-Dihydropyran-2-one Derivatives by Lewis Base-catalyzed Tandem Michael Addition and Lactonization

Takashi Tozawa; Hidehiko Fujisawa; Teruaki Mukaiyama

Chemistry Letters | 2006

Diastereo- and Enantioselective Tandem Michael Addition and Lactonization between Silyl Enolates and α,β-Unsaturated Ketones Catalyzed by a Chiral Quaternary Ammonium Phenoxide

Takashi Tozawa; Yoshinobu Yamane; Teruaki Mukaiyama

Chemistry Letters | 2005

Stereoselective Synthesis of trans-3, 4-Dihydropyran-2-ones by Phenoxide ion-catalyzed Tandem Michael Addition and Lactonization

Takashi Tozawa; Yoshinobu Yamane; Teruaki Mukaiyama

Chemistry Letters | 2005

A Convenient Method for Preparations of 1-Acylimidazoles and Carboxamides by Using Novel Imidazolylsilane Derivatives

Takashi Tozawa; Yoshinobu Yamane; Teruaki Mukaiyama

Chemistry Letters | 2005

An Effective Method for the Synthesis of Carboxamides by Using Tetrakis(pyridine-2-yloxy)silane as a Mild Coupling Reagent

Takashi Tozawa; Yoshinobu Yamane; Teruaki Mukaiyama

Chemistry Letters | 1996

ASYMMETRIC ALLYLATION OF AROMATIC ALDEHYDES USING CHIRAL ALLYLIC TIN REAGENTS

Minoru Nishida; Takashi Tozawa; Koji Yamada; Teruaki Mukaiyama

Chemistry Letters | 2005

An Efficient Method for the Preparation of Carboxamides by Dehydration Condensation Using Tetrakis(1,1,1,3,3,3-hexafluoro-2-propoxy)silane

Takashi Tozawa; Yoshinobu Yamane; Teruaki Mukaiyama

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Teruaki Mukaiyama

University of Tokyo

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Koji Yamada

College of Industrial Technology

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Hidehiko Fujisawa

Kitasato University

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Katsuyuki Saitoh

University of Tokyo

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