IONIC TELOMERIZATION OF CHLOROFLUOROPROPIONYL FLUORIDES WITH HEXAFLUOROPROPENE OXIDE

被引：12

作者：

KVICALA, J

PALETA, O

DEDEK, V

机构：

[1] Department of Organic Chemistry, Institute of Chemical Technology

来源：

JOURNAL OF FLUORINE CHEMISTRY | 1990年 / 47卷 / 03期

关键词：

D O I：

10.1016/S0022-1139(00)82397-0

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Six chlorofluoropropionyl fluorides were synthesized by converting a -CCl3 group in perhalogenated chlorofluoropropanes to a -COF group in two reaction steps. The ionic telomerization of the acyl fluorides with hexafluoropropene oxide, catalyzed by fluoride ion, afforded mainly a mixture of 1:1 to 1:3 telomers. In some cases, substitution of chlorine for fluorine in the acyl moiety and hexafluoropropene oxide oligomerization occurred as side reactions. The effect of the number of chlorines in the starting acyl fluoride on the telomer distributions and by product formation is discussed. The reactivity order of the acyl fluorides YCOF in the telomerization reaction was: CF3CClF (2a), CClF2CF2 (2b) > CF3CCl2 (3a), CClF2CClF (3b) > CClF2CCl2 (4a), CCl2FCClF (4b). Possible reaction pathways are discussed. © 1990.

引用

页码：441 / 457

页数：17