# Photofragmentation reactions of dithiolactones

Muthuramu, Kayambu and Sundari, Bhagavathi and Ramamurthy, Vaidhyanathan (1983) Photofragmentation reactions of dithiolactones. In: Tetrahedron, 39 (16). pp. 2719-2723.

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## Abstract

The occurrence of Norrish type-I \alpha-cleavage has been established in \beta-dithiofactones, involving the $n-\pi^*$ singlet state (diradical and carbene reactive intermediates). Concerted ring expansion to a thiacarbene from the excited state is suggested to be responsible for the formation, at least in part, of one of the cyclic thioacetals. Although this \alpha-cleavage process is similar to that of corresponding \beta-lactones, the hehaviour of the resulting intermediates is different.

Item Type: Journal Article Copyright of this article belongs to Elsevier. Division of Chemical Sciences > Organic Chemistry 19 Jun 2008 19 Sep 2010 04:46 http://eprints.iisc.ernet.in/id/eprint/14463