| 摘要 |
FIELD: organic chemistry. SUBSTANCE: method is carried out by reacting tetrafluoroethylene with mixture of iodine and iodine pentafluoride at temperature of 40-80 C in the presence of metallic antimony as catalyst and in the presence of mixture of difluoromethane with trifluoroethylene in amount of 7.10-4÷2,6.10-2 wt %. Process efficiency becomes higher, no inert diluent is used, process becomes cheaper and is less dangerous, and final product having high content of main agent is obtained, and additional purification thereof is thus avoided. EFFECT: more efficient preparation method.
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