Reusable Polymer-Anchored Amino Acid Copper Complex for the Synthesis of Propargylamines

Abstract

An amino acid was anchored to chloroacetylated polystyrene beads and the polymeric ligand containing N, O donor sites was treated with a solution of CuI to form the supported copper complex. The one-pot synthesis of propargylamines was then achieved efficiently via a three-component coupling of aldehydes, alkynes and amines using the supported copper catalyst under mild conditions. The catalyst could be recovered by simple filtration and reused several times without significant loss of activity.