Synthesis of cyclic sulfides

Two isomers of 2,3-dimethyl-1-thiahydrindane and two isomers of 4-methyl-1-thiadecali were obtained by the reaction of cyclohexene episulfide with crotylmagnesium bromide and subsequent cyclization of the resulting 2-(-methyl--propenyl)-1-cyclohexanethiol by the action of 75% sulfuric acid and UV irradiation.See [3] for communication IV.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 622–625, May, 1972.