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Communication | Regular issue | Vol 22, No. 6, 1984, pp.1303-1306
Published online, 1st January, 1970
DOI: 10.3987/R-1984-06-1303
Thermal Ring Expansion of 2-Vinylthiacycloalkane N-Imides by [2,3]-Sigmatropic Rearrangement

Haruki Sashida and Takashi Tsuchiya*

*School of Pharmacy, Hokuriku University, 3-Ho, Kanagawa machi, Kanazawa 920-1181, Japan


The thermolysis of the 2-vinylthiacyclo-pentane, -hexane, and -heptane N-(p-toluenesulfonyl)imides (7) resulted in the [2,3]-sigmatropic rearrangement to give the corresponding ring expansion products (8).