METHOD OF PRODUCING ACYL FLUORIDE OF PERFLUOROCYCLOHEXANE CARBOXYLIC ACID Russian patent published in 2013 - IPC C25B3/08 C07C51/58 C07C61/15 

FIELD: chemistry.

SUBSTANCE: method of producing an acyl fluoride of perfluorocyclohexane carboxylic acid involves electrochemical fluorination of dimethyl ether of phthalic acid in a medium of anhydrous hydrogen fluoride, where a mixture of dimethyl ether of phthalic acid with dimethyl ether of perfluorocyclohexane dicarboxylic acid is fluorinated, the latter being taken in amount of 5-50 wt % of the fluorinated mixture. The dimethyl ether of perfluorocyclohexane dicarboxylic acid can be obtained by mixing a diacyl fluoride of perfluorocyclohexane dicarboxylic acid with methanol, wherein the diacyl fluoride of perfluorocyclohexane dicarboxylic is separated from fluorination products of dimethyl ether of phthalic acid or a mixture of dimethyl ethers of phthalic acid and perfluorocyclohexane dicarboxylic acid.

EFFECT: high current output of the end product.

2 cl, 3 ex