Tetrahedron letters

Reductive amination of aldehydes and ketones by a Hantzsch dihydropyridine using scandium triflate as a catalyst

T Itoh, K Nagata, A Kurihara, M Miyazaki, A Ohsawa

Index: Itoh, Takashi; Nagata, Kazuhiro; Kurihara, Ayako; Miyazaki, Michiko; Ohsawa, Akio Tetrahedron Letters, 2002 , vol. 43, # 17 p. 3105 - 3108

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Citation Number: 83

Abstract

Direct reductive amination 1 of aldehydes and ketones is a convenient method for the preparation of secondary and tertiary amines owing to its simple procedure, 2 and recent application of the reaction to combinatorial chemistry is gaining more attention. 3 The overall process involves the formation of an imine or iminium intermediate by condensation of aldehydes or ketones with amines, followed by in situ reduction to an alkylated amine. For the reducing agent, ...