Ring Contraction Reactions of Dihydro- and Tetrahydrothiazepines to Isothiazolone Derivatives under Pummerer Conditions

DOI: 10.1021/jo00232a033

Source and publish data:

Journal of Organic Chemistry p. 5239 - 5243 (1987)

Update date:2022-08-02

Topics:

Authors:

Yamamoto, Kagetoshi

Yamazaki, Shoko

Murata, Ichiro

Fukazawa, Yoshimasa

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Article abstract of DOI:10.1021/jo00232a033

2,7-Diphenyl-5-oxo-2,3,4,5-tetrahydro-1,4-thiazepine (4) and 2,7-diphenyl-5-oxo-4,5,6,7-tetrahydro-1,4-thiazepine (5) were prepared from 2,3-dihydro-2,6-diphenyl-4H-thiopyran-4-one (1) through its O-tosyloxime (a mixture of syn and anti isomers ) followed

Full text of DOI:10.1021/jo00232a033

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