Fluoroalkyl perfluorovinyl

The preparation of the fluoroalkyl perfluorovinyl ethers, e.g. 11, starts from the corresponding acyl fluorides75 - 80 which are decarboxylated by heating up to 300 C in the presence of activators, such as zinc(II) oxide and silica gel, or in the presenee of salt-forming agents of the sodium carbonate type."4... 

Nucleophilic fluoroalkylation in the anomeric position has been performed with trifluorochloroethylene, or with perfluorovinyl ethers." The compound obtained with trifluorochloroethylene is an irreversible inhibitor of a-glycosidases (Figure 6.44). " Trifluoromethylzinc bromide can be used to perform the difluor-omethylation of hydroxyls in various positions, probably through a carbenic mechanism. 

FLUORINECOMPOUNDS,ORGANIC - TETRAFLUOROETHYLENE-PERFLUOROVINYL ETHER COPOLYMERS] (Vol 11) Per(fluoroalkyl) polyethers... 

A survey of a variety of polymerizable groups indicated that in the preferred free-radical aqueous-emulsion polymerization system, a per-fluorovinyl ether most nearly fulfills these requirements. In general, the perfluorovinyl ethers copolymerize at a reasonable rate. They change little in rate with variations in chain length or functionality in the per-fluoroalkyl moiety so long as the type of functionality on the perfluoro-alkyl group is consistent with requirements (a) and (b). In addition, such ethers furnish thermally resistant structures in the polymer. 

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