Process for the preparation of trifluorodichloroethyl-substituted acids and zinc compounds

摘要

Zinc compounds of formula II CF3CCl2ZnCl.yL (II) wherein y is 1 or 2 and L is a solvent ligand selected from the group of the N-disubstituted acid amides, N-substituted lactams and the organic sulfoxides, are suitable for reaction with CO2, COS or SO2 to give, after working up, the acids of formula I CF3CCl2-X (I) wherein X is -CO2H, -CSOH or -SO2H, in good yield.