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

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.