| 摘要 |
The invention relates to a process for the preparation of perfluorinated ethers of the formula (I) R-CF2-CF3(I) in which R is the radical CF3(CF2)2-O-[CF(CF3)CF2-O]n-, in which n is an integer from 0 to 60, from compounds of the formula (II) R-[CF(CF3)CF2-O-]CHF-CF3(II) by heating these at 150 DEG -350 DEG C. in the presence of at least one of the compounds AlCl3, Albr3 or AlF3. |
