Process for the manufacture of organic acid chlorides

摘要

The invention relates to a process for the manufacture of carboxylic acid chlorides by the phosgenation, under the action of heat, of the corresponding acids in the presence of a catalyst. The process according to the invention is characterized in that a compound possessing the skeleton <IMAGE> is used as the catalyst, in which compound X is an oxygen atom or a nitrogen atom substituted by an alkyl group.