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US4874557A Process for the preparation of perfluorinated carbonyl fluorides 失效
制备全氟化羰基氟化物的方法

Process for the preparation of perfluorinated carbonyl fluorides
摘要:
The invention relates to a process for the preparation of perfluorinated carbonyl fluorides of the formula ##STR1## by oligomerization of hexafluoropropene oxide in the presence of a catalyst. The catalyst comprises a mixture of an alkali metal fluoride, a carboxylic acid dinitrile and a polyethylene glycol dimethyl ether.
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