【摘要】 从聚三氟氯乙烯热解产物中分得一烯烃,C₄Cl₂F₆.经高锰酸钾氧化得相应的羧酸（C₂Cl₂F₃-COOH）.该丙酸经Curtius降解得CCl₂FCOOH,其钠盐在乙二醇中热解得三氟氯乙烯和一饱和烃.根据H¹核磁共振谱和红外光谱证明后者是CCl₂FCF₂H.从而确证羧酸的结构为CCl₂FCF₂COOH,烯烃为CCl₂FCF₂CF=CF₂.更多还原

【Abstract】 From the pyrolytic products of potytrifluorochloroethylene a perhaloolefin, C₄Cl₂F₆ （b.p. 70°）, was isolated. Oxidation of the olefin afforded a perhalopropionic acid [（C₂Cl₂F₃）COOH] which was degraded through the Curtius degradation to give fluorodichloroacetic acid. Pyrolysis of the sodium salt of the perhalopropionic acid in ethylene glycol yielded trifluorochloroethylene and 1,1,2-trifluoro-2,2-dichloroethane, the structure of the latter was established by its infrared and proton magnetic resonance spectra. Consequently, the structure of the propionic acid is CCl₂F-CF₂-COOH, and the olefin, CCl₂F-CF₂-CF=CF₂.更多还原