Synthesis 2003(16): 2547-2551  
DOI: 10.1055/s-2003-42459
PAPER
© Georg Thieme Verlag Stuttgart · New York

New Applications of 2,4,6-Trichloro-1,3,5-triazine (TT) in Synthesis: Highly Efficient and Chemoselective Deprotection and Ring-Enlargement of Dithioacetals and Oxathioacetals

Babak Karimi*, Hassan Hazarkhani
Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), P.O. Box 45195-159, Gava Zang, Zanjan, Iran
Fax: +98(241)4249023; e-Mail: Karimi@iasbs.ac.ir;
Further Information

Publication History

Received 24 March 2003
Publication Date:
06 November 2003 (online)

Abstract

Efficient deprotection of a wide variety of 1,3-dithioacetals and 1,3-oxathiolanes to the corresponding carbonyl compounds at room temperature using a combination of 2,4,6-trichloro-1,3,5-triazine (TT) and dimethyl sulfoxide (DMSO) was investigated. In this way, 1,3-oxathioacetals and 1,3-dithioacetals of enolizable ketones were converted to the corresponding 1,4-oxathiepine and 1,4-dithiepine derivatives, respectively.