PROCESS FOR THE PREPARATION OF PERFLUORINATED ETHERS

摘要

The invention relates to a process for the preparation of fluorinated ethers of the formula (I) F3C(CF2)2-O-CF(CF3)CF2-O)n CHFCF3 (I) where n is an integer from 10 to 60, from the compounds of the formula(II) F3C(CF2)2-O-CF(CF3)CF2-O)n CF(CF3)COF (II) where n has the above meaning, by reaction with alkali metal hydroxide at temperatures of 90 DEG to 160 DEG C. and in the absence of solvents.