METHOD FOR THE PREPARATION OF ALIPHATIC CHLOROFORMATES

摘要

A method for preparing an aliphatic chloroformate comprising, introducing a mixture of at least one aliphatic hydroxyl compound, phosgene, at least one solvent, and optionally at least one organic base into a flow reactor to obtain a unidirectional flowing reaction mixture. The unidirectional flowing reaction mixture is maintained at a temperature between about 0°C and about 60°C to produce a single product stream comprising an aliphatic chloroformate, useful in the preparation of polycarbonates and co-polycarbonates.