Bulletin of the Chemical Society of Japan p. 3131 - 3136 (1985)
Update date:2022-09-26
Topics:
Kamigata, Nobumasa
Hashimoto, Satoshi
Kobayashi, Michio
Nakanishi, Hiroshi
The photochemical reaction of a series of 2-aryl-1,2-benzisothiazol-3(2H)-ones (1) under deaerated conditions was found to give dibenzo<1,4>thiazepin-11(10H)-ones (2).A mechanism through a biradical species is proposed for the photoreaction.When the photolysis of 1 was carried out in the presence of oxygen, 2-aryl-1,2-benzisothiazol-3(2H)-one-1-oxides (11) were formed together with compounds 2.
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