J. Dingwall, D. Reid, J. D. Symon
1970
Citations
0
Influential Citations
2
Citations
Journal
Journal of The Chemical Society C: Organic
Abstract
4H-Thiopyran-4-thiones are ring-opened by sulphide or hydroxide in dimethyl sulphoxide or NN-dimethylformamide, forming anions which undergo intramolecular oxidative coupling to give 6a-thiathiophthens or 3-acylmethylene-3H-1,2-dithioles, respectively. The procedure provides a useful synthesis of 6a-thiathiophthen.