SIOC English
化学学报
高级检索

化学学报 ›› 1966, Vol. 32 ›› Issue (1): 53-57. 上一篇    下一篇

论文

聚三氟氯乙烯热解产物——4, 4-二氯六氟丁烯-1的分离和鉴识

黄维垣, 胡昌明, 汤济宏   

  1. 中国科学院有机化学研究所
  • 投稿日期:1965-02-16 发布日期:2013-06-03

THE ISOLATION AND IDENTIFICATION OF A PYROLYTIC PRODUCT OF POLYTRIFLUOROCHLOROETHYLENE, 4, 4-DICHLOROPERFLUOROBUTENE-1

HUANG Wei-Yuan, HU Chang-Ming, TANG Chi-Hung   

  1. Institute of Organic Chemistry, Academia Sinica
  • Received:1965-02-16 Published:2013-06-03

PDF

370

被引次数

6

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.

From the pyrolytic products of polytrifluorochloroethylene 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 fluorodi-chloroacetic 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.