Enantioselective transformation of Na2SO3 into allylic sulfonic acids under Pd catalysis†
Abstract
Pd-catalyzed asymmetric allylic sulfonation of di-aryl-substituted allylic acetates with sodium sulfite (Na2SO3) in THF–H2O at room temperature was described. This method directly provided allylic sulfonic acids in up to excellent yield and enantioselectivity.