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Synthesis of 2,4-difuryl-4H-3,1-benzothiazines via a furan ring migration reaction

✍ Scribed by Vladimir T. Abaev; Fatima A. Tsiunchik; Alexander V. Butin; Andrey V. Gutnov

Publisher
Journal of Heterocyclic Chemistry
Year
2008
Tongue
English
Weight
521 KB
Volume
45
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

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A new simple synthetic approach to 2,4‐difuryl‐4__H__‐3,1‐benzothiazines from 2‐isothiocyanoaryldifuryl‐methanes in the presence of acidic catalyst is described. This rearrangement is a new example of furan ring migration reaction resulting from intramolecular attack with electrophilic carbon.

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