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Takushi Nagata

Agency for Science, Technology and Research

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Publication

Featured researches published by Takushi Nagata.

Organic Letters | 2010

Highly enantioselective titanium-catalyzed cyanation of imines at room temperature.

Abdul Majeed Seayad; Balamurugan Ramalingam; Kazuhiko Yoshinaga; Takushi Nagata; Christina L. L. Chai

A highly active and enantioselective titanium-catalyzed cyanation of imines at room temperature is described. The catalyst used is a partially hydrolyzed titanium alkoxide (PHTA) precatalyst together with a readily available N-salicyl-beta-aminoalcohol ligand. Up to 98% ee was obtained with quantitative yields in 15 min of reaction time using 5 mol % of the catalyst. Various N-protecting groups such as benzyl, benzhydryl, Boc, and PMP are tolerated.

Advanced Synthesis & Catalysis | 2009

Enantioselective Silylcyanation of Aldehydes and Ketones by a Titanium Catalyst Prepared from a Partially Hydrolyzed Titanium Alkoxide and a Schiff Base Ligand

Kazuhiko Yoshinaga; Takushi Nagata

Advanced Synthesis & Catalysis | 2010

A Remarkable Titanium-Catalyzed Asymmetric Strecker Reaction using Hydrogen Cyanide at Room Temperature

Balamurugan Ramalingam; Abdul Majeed Seayad; Li Chuanzhao; Marc Garland; Kazuhiko Yoshinaga; Manabu Wadamoto; Takushi Nagata; Christina L. L. Chai

Archive | 2007

Titanium Compound and Process for Producing Optically Active Cyanohydrins

Kazuhiko Yoshinaga; Takushi Nagata; Satoru Miyazoe

Archive | 2010

TITANIUM COMPOUND AND PROCESS FOR ASYMMETRIC CYANATION OF IMINES

Abdul Majeed Seayad; Christina L. L. Chai; Balamurugan Ramalingam; Takushi Nagata; Kazuhiko Yoshinaga

Archive | 2010

Method of producing an optically active cyanohydrin derivative

Wee Chuan Yeo; L. L. Christina Chai; Selvasothi Selvaratnam; Takushi Nagata; Kazuhiko Yoshinaga

Archive | 2010

TITANIUM COMPOUNDS AND PROCESS FOR CYANATION OF IMINES

Abdul Majeed Seayad; Balamurugam Ramalingam; Christina L. L. Chai; Takushi Nagata; Kazuhiko Yoshinaga; Manabu Wadamoto

Archive | 2011

TITANIUM-CONTAINING CATALYST AND PROCESS FOR PREPARATION OF OPTICALLY ACITIVE CYANO COMPOUNDS

Manabu Wadamoto; 和田本 学; Kazuhiko Yoshinaga; 吉永 一彦; Takushi Nagata; 永田 卓司; Seayad Abdul Majeed; アブドゥル マジード セヤド; Sa-ei Kanicha; カニーチャ サエイ; Chai Christina L.L.; クリスティナ エル エル チャイ

Archive | 2010

METHOD FOR PRODUCING OPTICALLY ACTIVE ALCOHOL

Manabu Wadamoto; Kazuhiko Yoshinaga; Takushi Nagata; Seayad Abdul Majeed; Ramalingam Balamurugan; Chai L. L. Christina

Studies in Surface Science and Catalysis | 2007

Novel Catalyst for Enantioselective Cyanosilylation of Aldehydes and Ketones Using Partially Hydrolyzed Titanium Alkoxide as a Lewis Acidic Metal

Kazuhiko Yoshinaga; Takushi Nagata

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Kazuhiko Yoshinaga

Agency for Science

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Christina L. L. Chai

National University of Singapore

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Manabu Wadamoto

Agency for Science

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Balamurugan Ramalingam

Agency for Science

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Abdul Majeed Seayad

International Council for the Exploration of the Sea

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Seayad Abdul Majeed

Agency for Science

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Balamurugam Ramalingam

Agency for Science

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Chai L. L. Christina

Agency for Science

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L. L. Christina Chai

Agency for Science

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Marc Garland

National University of Singapore

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