Methyl trifluorovinyl ether

Methyl trifluorovinyl ether, b.p. 10.5- 12.5°C, prepared from tetrafluoroethylene and sodium methoxide [1], has considerable explosive potential. On ignition, it decomposes more violently than acetylene and should be treated with extreme caution [2], Other trifluorovinyl ethers are similarly available from higher alkoxides [1], and although not tested for instability, should be handled carefully. Presence of fluoro-haloalkanes boiling lower than the ether stabilises the latter against spark-initiated decomposition in both fluid phases [3],... 

Methyl 4-(trifluorosulfonyloxy)but-2-enoate, see 3-Methoxycarbonylpropen-2-yl trifluoromethanesulfonate, 2346 Methyl trifluorovinyl ether, 1098... 

Fluorination. Fluorination of unsaturated compounds with CoF, is carried out in a stainless steel vessel from -196° to room temperature. The method transforms methyl trifluorovinyl ether to methyl pentafluoroethyl ether in 70% yield. 

Cyclodimerization of fluorinated alkenes was observed as early as 1947 during the pyrolysis study of polytetrafluoroethylene (PTFE) [54]. The ability of fluorinated alkenes to dimerize with themselves has been attributed to the energy relief of fluorinated double bond strain [4]. In the same fashion, the aryl trifluorovinyl ether groups (Ar—O—CF=Cp2) underwent thermally activated [2-1-2] cycloaddition to form bisaryloxy-substituted PFCB rings. Scheme 14.9 depicts the model reaction of cycloaddition of aryl trifluorovinyl ethers. The thermal cyclodimerization of methyl... 

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