Studies on the synthesis of heterocyclic compounds. XIV. Cleavage of 1, 3??benzoxathioles by magnesium bromide??acetic anhydride

…, AM Maccioni, E Marongiu, G Podda

文献索引：Bonsignore, Leonardo; Fadda, Anna Maria; Loy, Giuseppe; Maccioni, Anna Maria; Marongiu, Enrica; Podda, Gianni Journal of Heterocyclic Chemistry, 1984 , vol. 21, p. 573 - 576

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摘要

Abstract The cleavage reaction of some 1, 3-benzoxathioles with magnesium bromide and acetic anhydride has been studied. In all the 1, 3-benzoxathioles studied, the opening of the heterocyclic ring occurs first with cleavage of the C [BOND] O bond and formation of bromides and their corresponding products of hydrolysis. Successively also the cleavage of the C [BOND] S bond can occur. The competitive electrophilic substitution on the benzene ...