标题：efficient dehydrative alkylation of thiols with alcohols catalyzed by alkyl halides
abstact：alcohols can be efficiently converted into the useful thioethers by a transition metal- and base-free dehydrative s-alkylation reaction with thiols or disulfides by employing alkyl halides as the effective catalyst. this simple and efficient method is a green and practical way for the preparation of thioethers, as it tolerates a wide range of substrates such as aryl and alkyl thiols, as well as benzylic, allylic, secondary, tertiary, and even the less reactive aliphatic alcohols.
