Synlett 2016; 27(03): 427-431
DOI: 10.1055/s-0035-1560830
letter
© Georg Thieme Verlag Stuttgart · New York

Iron-Catalyzed Oxidative Sulfonylation of Enol Acetates: An Environmentally Benign Approach to β-Keto Sulfones

Vinod K. Yadav
Green Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad 211002, India   Email: ldsyadav@hotmail.com
,
Vishnu P. Srivastava
Green Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad 211002, India   Email: ldsyadav@hotmail.com
,
Lal Dhar S. Yadav*
Green Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad 211002, India   Email: ldsyadav@hotmail.com
› Author Affiliations
Further Information

Publication History

Received: 26 August 2015

Accepted after revision: 05 October 2015

Publication Date:
18 November 2015 (online)


Abstract

The first application of iron-catalyzed sulfonylation of aryl enol acetates with sulfonyl hydrazides for the construction of β-keto sulfones under aerobic conditions is reported. The present protocol, which utilizes an inexpensive iron salt as the catalyst, readily available sulfonyl hydrazides as the sulfonylating reagents, and air as oxidant under mild conditions, provides a cost-effective and environmentally benign approach to various β-keto sulfones.