Synlett 2005(15): 2329-2332  
DOI: 10.1055/s-2005-872677
LETTER
© Georg Thieme Verlag Stuttgart · New York

Layered Double Hydroxide-Supported Gold Catalyst for Three-Component Aldehyde-Amine-Alkyne Coupling

M. Lakshmi Kantam*, B. Veda Prakash, Chinta Reddy Venkat Reddy, B. Sreedhar
Inorganic and Physical Chemistry Division, Indian Institute of Chemical Technology, Hyderabad 500007, India
Fax: +91(40)27160921; e-Mail: mlakshmi@iict.res.in; e-Mail: lkmannepalli@yahoo.com;
Further Information

Publication History

Received 23 May 2005
Publication Date:
07 September 2005 (online)

Abstract

A three-component coupling of aldehydes, amines and an alkyne to generate propargylic amines in nearly quantitative yields, using a layered double hydroxide-supported gold (LDH-AuCl4) catalyst is described. Both aromatic and aliphatic aldehydes and amines are used for the reaction. No additional co-catalyst or activator is required.

1

Current address: 1311 Gilman Hall, Department of Chemistry, Iowa State University, Ames, IA 50011, USA.