Process for preparing chlorinated compounds
AssigneeCiba-Geigy Corporation
InventorAthanassios Tzikas
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Abstract
A process for the preparation of monochlorinated and dichlorinated bis-(perhalomethyl)-benzenes of the formula (I) by reacting bis-(perhalomethyl)-benzenes of the formula (II) with elementary chlorine in chlorosulfonic acid as the reaction medium, at a temperature of, preferably, 0.degree. to 10.degree. C. The present invention makes it possible to obtain pure compounds of the formula (I), in high yields, in a single process step.
Claims8
A process for the preparation of a compound of the general formula ##STR8## in which the X's are each halogen and may be identical or different, wherein a compound of the general formula ##STR9## is reacted with elementary chlorine in chlorosulfonic acid at temperatures of -10.degree. to +25.degree. C.
Dependencies are inferred from the claim text.