Abstract
Photolysis of simple primary alcohols in the presence of 2-aminothiophenol (I) and cyclohexene afforded 2-methyl-2-alkylbenzothiazolines (II : R1=CH3, R2=alkyl) having the methyl group arising from a carbon of cyclohexene. Similar irradiation of secondary alcohols resulted in the fromation of 2, 2-dialkyl-benzothiazolines (II) in which the R1R2C parts correspond to the carbon skeleton of the parent alcohols. The concurrent formation of 2-cyclohexylthioaniline (III) and 2, 2-pentamethylene-benzothiazoline (IV) in these reactions was also observed. Mechanisms for the formation of these photochemical products have been discussed.
