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Synthesis 2003(16): 2547-2551
DOI: 10.1055/s-2003-42459
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
Further Information
Received
24 March 2003
Publication Date:
06 November 2003 (online)
Publication History
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.
Key words
chemoselective - 1,3-dithioacetals - 1,3-oxathiolanes - carbonyl compounds
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