发明申请
WO2015120250A1 INTEGRATED PROCESS FOR THE PRODUCTION OF Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
审中-公开
基本信息:
- 专利标题: INTEGRATED PROCESS FOR THE PRODUCTION OF Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
- 专利标题(中):生产Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE的综合方法
- 申请号:PCT/US2015/014783 申请日:2015-02-06
- 公开(公告)号:WO2015120250A1 公开(公告)日:2015-08-13
- 发明人: BALDYCHEV, Ivan Sergeyvich , BRANDSTADTER, Stephan M. , CHEUNG, Patricia , NAPPA, Mario Joseph , PENG, Sheng , TOTON, Donald J.
- 申请人: E. I. DU PONT DE NEMOURS AND COMPANY
- 申请人地址: 1007 Market Street Wilmington, Delaware 19898 US
- 专利权人: E. I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人: E. I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人地址: 1007 Market Street Wilmington, Delaware 19898 US
- 代理机构: LEACH, Douglas
- 优先权: US61/937,109 20140207
- 主分类号: C07C17/23
- IPC分类号: C07C17/23 ; C07C17/269 ; C07C17/281 ; C07C17/354 ; C07C19/12 ; C07C21/09 ; C07C21/18
摘要:
Disclosed is a process for the preparation of cis-1,1,1,4,4,4-hexafluoro-2-butene comprising contacting 1,1,1-trifluorotrichloroethane with hydrogen in the presence of a catalyst comprising ruthenium to produce a product mixture comprising 1316mxx, recovering said 1316mxx as a mixture of Z- and E- isomers, contacting said 1316mxx with hydrogen, in the presence of a catalyst selected from the group consisting of copper on carbon, nickel on carbon, copper and nickel on carbon and copper and palladium on carbon, to produce a second product mixture, comprising E- or Z-CFC-1326mxz, and subjecting said second product mixture to a separation step to provide E- or Z-1326mxz. The E- or Z-1326mxz can be dehydrochlorinated in an aqueous basic solution with an alkali metal hydroxide in the presence of a phase transfer catalyst to produce hexafluoro-2-butyne, which can then be selectively hydrogenated to produce Z-1,1,1,4,4,4-hexafluoro-2-butene using using either Lindlar's catalyst, or a palladium catalyst further comprising a lantanide element or silver.
摘要(中):
公开了一种制备顺式-1,1,1,4,4,4-六氟-2-丁烯的方法,包括在包含钌的催化剂存在下使1,1,1-三氟三氯乙烷与氢气接触以产生产物 混合物,其包含1316mxx,回收所述1316mxx作为Z和E-异构体的混合物,在选自碳上的镍,碳上的碳,铜和镍上的碳的催化剂存在下,使所述1316mxx与氢接触,以及 铜和钯碳,以产生包含E-或Z-CFC-1326mxz的第二产物混合物,并使所述第二产物混合物进行分离步骤以提供E-或Z-1326mxz。 在相转移催化剂存在下,E-或Z-1326mxz可以在碱金属氢氧化物水溶液中脱氯化氢以产生六氟-2-丁炔,然后可以选择性氢化生成Z-1,1, 1,4,4,4-六氟-2-丁烯,或使用Lindlar催化剂或进一步包含兰丹尼特元素或银的钯催化剂。