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Synlett 2005(15): 2329-2332
DOI: 10.1055/s-2005-872677
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
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.
Key word
layered double hydroxides - gold - coupling reaction - propargylic amines - heterogeneous catalysis