The electrochemical trichloromethylation of various alkyl halides has been obtained in high yields in an undivided cell in the presence of a sacrificial anode. This cross-coupling process has been extended to the preparation of numerous gem-dichloro compounds from trichloro-substituted methanes and alkyl halides. Zinc, magnesium, or aluminium were used as anodes according to the reduction potentiel of the reagents. Mixtures of polar aprotic ...