Synthesis 2010(11): 1771-1776  
DOI: 10.1055/s-0029-1218730
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Bromodimethylsulfonium Bromide-ZnCl2: A Mild and Efficient Catalytic System for Beckmann Rearrangement

Lal Dhar S. Yadav*, Rajesh Patel, Vishnu P. Srivastava
Green Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad 211002, India
Fax: +91(532)2460533; e-Mail: ldsyadav@hotmail.com;
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Publikationsverlauf

Received 23 February 2010
Publikationsdatum:
09. April 2010 (online)

Abstract

Bromodimethylsulfonium bromide, in combination with zinc chloride, has been shown to be an excellent catalytic system for liquid-phase Beckmann rearrangement of various ketoximes into the corresponding amides/lactams in acetonitrile at reflux temperature with good to excellent yields.