申请人:THE CHEMOURS COMPANY FC, LLC
公开号:US20160046547A1
公开(公告)日:2016-02-18
Processes for producing branched fluoroalkyl olefins are disclosed. In addition, novel halo-fluoroalkane intermediates are disclosed that may be used in the branched fluoroalkyl olefin production processes. Non-limiting examples of branched fluoroalkyl olefins include branched fluorobutenes, such as 1,3,4,4,4-pentafluoro-3-trifluoromethyl)but-1-ene (HFO-1438ezy). In some aspects, there is disclosed a method for dehydrobrominating 4-bromo-1,1,1,2,4-pentafluoro-2-(trifluoromethyl)butane to produce 1,3,4,4,4-pentafluoro-3-(trifluoromethyl)but-1-ene (HFO-1438ezy).
本文介绍了生产分支氟烷基烯烃的过程。此外,还介绍了新型的卤代氟烷中间体,可用于生产分支氟烷基烯烃的过程中。分支氟烷基烯烃的非限定性例子包括分支氟丁烯,如1,3,4,4,4-五氟-3-三氟甲基丁-1-烯(HFO-1438ezy)。在某些方面,还公开了一种将4-溴-1,1,1,2,4-五氟-2-(三氟甲基)丁烷脱溴化制备1,3,4,4,4-五氟-3-(三氟甲基)丁-1-烯(HFO-1438ezy)的方法。