Organic letters

Chiral phosphoric acid-catalyzed enantioselective transfer hydrogenation of ortho-hydroxyaryl alkyl N− H ketimines

TB Nguyen, H Bousserouel, Q Wang, F Guéritte

Index: Nguyen, Thanh Binh; Bousserouel, Hadjira; Wang, Qian; Gueritte, Francoise Organic Letters, 2010 , vol. 12, # 20 p. 4705 - 4707

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Citation Number: 47

Abstract

The first enantioselective chiral phosphoric acid-catalyzed transfer hydrogenation of unprotected ortho-hydroxyaryl alkyl N− H ketimines using Hantszch di-tert-butyl ester as a reductant is reported. A variety of ortho-hydroxybenzylamines were obtained in good to excellent yields and enantiomeric excesses.

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