FIELD: chemical industry. SUBSTANCE: present invention describes method of preparing polyfluoroolefins by catalytic addition of polyfluoroallyl fluorides to fluoroethylenes. Addition products such as fluoropentene-2 and fluorheptene-3 in 1:1 and 1:2 ratio may be formed selectively and subsequently reduced to dihydro- or trihydropolyfluoralkanes which are useful fluorohydrocarbon cleaning agents. EFFECT: more efficient preparation method. 31 cl, 1 tbl
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SU795452A3 |
