Reactions of α-trifluoromethyl-β-chloroethylsulfenyl chloride with phenols and their derivatives

In the absence of a catalyst, -trifluoromethyl--chloroethylsulfenyl chloride reacts electrophilically with ortho-para-substituted phenols bearing substituents of the first type. The reaction conditions are determined by the C-nucleophilic properties of the phenol, and the selectivity by solvent effects. These -trifluoromethyl--chloroethylthiolated phenols are shown to be highly prone to dehydrochlorination.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 832–837, April, 1990.