Processes for synthesis of 1,3,3,3-tetrafluoropropene
申请人:Mukhopadhyay Sudip
公开号:US20050245773A1
公开(公告)日:2005-11-03
Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene that comprises, in one preferred embodiment, providing a compound of the formula CF
3
CH
2
CHFX, wherein X is a selected from the group consisting of chlorine, bromine and iodine, and exposing said compound to reaction conditions effective to convert said compound to 1,3,3,3-tetrafluoropropene. Other processes for forming 1,3,3,3-tetrafluoropropene are also disclosed.
Addition of free radicals to unsaturated systems. Part XVIII. The direction of radical addition to 1,3,3,3-tetrafluoropropene
作者:R. Gregory、R. N. Haszeldine、A. E. Tipping
DOI:10.1039/j39700001750
日期:——
reaction of trifluoroiodomethane with 1,3,3,3-tetrafluoropropene gives the 1 : 1 adducts 1,1,1,2,4,4,4-heptafluoro-3-iodobutane and 1,1,1,3-tetrafluoro-3-iodo-2-trifluoromethylpropane in high yield in the ratio of 75 : 25. The 1,1,1,2,4,4,4-heptafluoro-3-iodobutane is a mixture of the erythro- and threo-forms in the approximate ratio 2 : 1 and treatment of these separately with potassium hydroxide gives, in