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Issue 8, 1983
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A simple ring-expansion of 1,4-benzothiazines to give 1,5-benzothiazepines

Abstract

A new ring-expansion of 2-phenylmethylene-2H-1,4-benzothiazin-3(4H)-ones (1) to give 2,3-dihydro-3-oxo-2-phenyl-1,5-benzothiazepin-4(5H)-ones (3) has been developed; an episulphonium ion intermediate could be involved.

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Article information


J. Chem. Soc., Chem. Commun., 1983, 450-451
Article type
Paper

A simple ring-expansion of 1,4-benzothiazines to give 1,5-benzothiazepines

Y. Maki, M. Sako, N. Mitsumori, S. Maeda and M. Takaya, J. Chem. Soc., Chem. Commun., 1983, 450
DOI: 10.1039/C39830000450

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