Synthesis 2011(2): 325-329  
DOI: 10.1055/s-0030-1258365
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Polystyrene-Supported Zinc Bromide-Ethylenediamine Complex as a Reusable and Highly Efficient Heterogeneous Catalyst for the Synthesis of α,β-Acetylenic Ketones

Ali Keivanloo*, Mohammad Bakherad, Bahram Bahramian, Mahrokh Rahmani, Sayed Ali Naghi Taheri
School of Chemistry, Shahrood University of Technology, Shahrood, Iran
Fax: +98(273)3395441; e-Mail: akeivanloo@yahoo.com; e-Mail: keivanloo@shahroodut.ac.ir;
Further Information

Publication History

Received 4 October 2010
Publication Date:
15 December 2010 (online)

Abstract

A polystyrene-supported zinc bromide-ethylenediamine complex was shown to be useful as a recyclable heterogeneous catalyst for the rapid and efficient synthesis of α,β-acetylenic ketones in good-to-excellent yields by cross-coupling of acid chlorides with terminal alkynes. The catalyst is easily prepared, stable, reusable, and efficient under the reaction conditions.