Synthesis 2003(18): 2877-2881  
DOI: 10.1055/s-2003-42485
PAPER
© Georg Thieme Verlag Stuttgart · New York

Zinc Mediated Friedel-Crafts Acylation in Solvent-Free Conditions under Microwave Irradiation

Satya Paula, Puja Nandaa, Rajive Gupta*a, André Loupyb
a Department of Chemistry, University of Jammu, Jammu-180 006, India
Fax: 91(191)505086; e-Mail: rajgupta@sancharnet.in;
b Laboratoire des Réactions Sélectives sur Supports, CNRS UMR 8615, Université Paris-Sud, 91405, Orsay, France
Fax: 33(1)69154679; e-Mail: aloupy@icmo.u-psud.fr;
Further Information

Publication History

Received 17 September 2003
Publication Date:
17 November 2003 (online)

Abstract

Zn powder is found to catalyze the Friedel-Crafts acylation of aromatic compounds with acyl halides efficiently under microwave irradiation in solvent-free conditions. Activated substrates undergo acylation predominantly at the para-position. The Zn powder can be re-used up to six times after simple washing with diethyl ether and dilute HCl.