Oxidative ring‐expansion of benzothiazolines into 1,4‐benzothiazines
Authors:
- 1 March 1981
- journal article
- research article
- Published by Wiley in Journal of Heterocyclic Chemistry
- Vol. 18 (2) , 279-282
Abstract
By treatment in boiling DMSO, benzothiazolines 1 yield 1,4‐benzothiazines 4 in some cases together with benzothiazoles. Two competing pathways, namely oxidative ring‐expansion and decomposition of benzothiazoline accounting for the formation of 4 and benzothiazoles, respectively, are suggested.Keywords
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