FIELD: production of halogenated lower carboxylic acids. SUBSTANCE: chlorides of carboxylic acids are prepared by interaction of lower aliphatic acid with inorganic oxohalogenide, dimethylformamide being used as catalyst. Oxochloride of phosphorous is used as mentioned above inorganic oxohalogenide. The process is carried out by boiling of reaction mixture, molar ratio of aliphatic acid, phosphorous oxochloride and dimethylformamide being 1: 0.67: (0.25-0.33) respectively. EFFECT: improved efficiency of the method. 1 cl, 3 tbl
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