Synlett 2014; 25(13): 1831-1834
DOI: 10.1055/s-0034-1378328
letter
© Georg Thieme Verlag Stuttgart · New York

A Practical Approach to N-(Trifluoroacetyl)sulfilimines

Jörg Gries
Bayer Pharma AG, Global Drug Discovery – Chemical Development, Friedrich-Ebert-Str. 217–333, 42117 Wuppertal, Germany   Fax: +49(202)362566   Email: joachim.krueger1@bayer.com
,
Jochen Krüger*
Bayer Pharma AG, Global Drug Discovery – Chemical Development, Friedrich-Ebert-Str. 217–333, 42117 Wuppertal, Germany   Fax: +49(202)362566   Email: joachim.krueger1@bayer.com
› Author Affiliations
Further Information

Publication History

Received: 17 April 2014

Accepted after revision: 20 May 2014

Publication Date:
25 June 2014 (online)


Abstract

A new, simple method for the synthesis of N-(trifluoroacetyl)-protected sulfilimines from sulfides by a transition-metal-free, one-pot protocol is presented. The salient features of this process include the use of low-cost 1,3-dibromo-5,5-dimethylhydantoin, mild reaction conditions, and a broad substrate scope. The safety and robustness of the method has also been demonstrated by operations on a kilogram scale. In addition, a chiral resolution of a corresponding sulfoximine was achieved on a large scale.

Supporting Information