PAPER	Synthesis 2004: 1789-1792   DOI: 10.1055/s-2004-829152
© Georg Thieme Verlag Stuttgart · New York
Selective Fries Rearrangement Catalyzed by Zinc Powder
Satya Paul*, Monika Gupta
Department of Chemistry, University of Jammu, Jammu-180 006, India Fax: +91(191)2505086; e-Mail: paul7@rediffmail.com;
Received 9 January 2004

Abstract

Zinc powder in the presence of N,N-dimethylformamide efficiently catalyzes the selective Fries rearrangement of acetylated phenols under microwave heating or with conventional heating using an oil bath. In some cases different products were obtained using microwave heating and conventional heating. Selective migration of the acyl group has been noted with good yields.

Keywords

acetylated phenols - zinc powder - Fries rearrangement - microwave activation - selectivity