SYNTHESIS OF ALKYL-SUBSTITUTED THIODIPHENOLS

摘要

Mo-2485 PC-072 SYNTHESIS OF ALKYL-SUBSTITUTED THIODIPHENOLS A high yield of pure bis(4-hydroxy-dialkyl-phenyl) sulfide is obtained upon a process comprising reacting the corresponding dialkylphenol with a thionyl halide, distilling off the reaction solvent, and recrystallization, said sulfides are suitable as comonomers in preparing polycarbonate resins of improved flame retardance. Mo-2485