Asymmetric Friedel–Crafts alkylation using chiral α-acyl-α-chloromethylsulphides

Abstract Lewis acid catalysed stereoselective Friedel–Crafts alkylation of aromatic compounds with α-(−)-menthyloxycarbonyl-α-(phenylthio)methyl chloride and α-(−)-8-phenylmenthyloxycarbonyl-α-(phenylthio)methyl chloride is described.