ALKYL ARYL SULFONES AND METHOD OF PREPARING THE SAME

摘要

Alkyl aryl sulfones of the formula R-SO2-Ar-Yn, wherein Ar is an aryl compound, Y is a substituent on the aryl compound and R is alkyl or cycloalkyl, and liquid mixtures of positional isomers of the same are prepared by reacting an aryl compound of the formula Ar-Yn, with an alkyl sulfonic acid of the formula R-SO3H and a phosphorus reagent, preferably under heat. Particularly good yields and pure products are obtained using phosphorus pentoxide. Alkyl aryl sulfones produced by this method are a liquid mixture preferably containing at least two positional isomers, wherein no isomer is present in an amount of more than about 50% of the isomer mixture.