发明名称 |
CO-PRODUCTION OF PERFLUOROMETHYL PERFLUOROVINYL ETHER AND PERFLUOROETHYL PERFLUOROVINYL ETHER |
摘要 |
<p>A process for the production of perfluoromethyl perfluorovinyl ether (PMVE) and perfluoroethyl perfluorovinyl ether (PEVE) from hexafluoropropylene epoxide (HFPO) and a mixture comprising carbonyl fluoride (CF) and perfluoroacetyl fluoride (PAF) is disclosed. The process includes a step (a) involving the reaction of hexafluoropropylene epoxide (HFPO) with a mixture of carbonyl fluoride (CF) and perfluoroacetyl fluoride (PAF) to produce a mixture of 2,3,3,3-tetrafluoro-2-(trifluoromethoxy)propionic acid fluoride (PMPF) and 2,3,3,3-tetrafluoro-2-(pentafluoroethoxy)propionic acid fluoride (PEPF). In a second step, a mixture of PMPF and PEPF made in the step (a) is dehalocarbonylated to produce a mixture of PMVE and PEVE.</p> |
申请公布号 |
EP0960090(A1) |
申请公布日期 |
1999.12.01 |
申请号 |
EP19970926591 |
申请日期 |
1997.05.19 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
LIANG, BAISHEN;HUNG, MING-HONG;RESNICK, PAUL, RAPHAEL |
分类号 |
C07B61/00;C07C41/24;C07C43/17;C07C51/58;(IPC1-7):C07C43/17;C07C59/135 |
主分类号 |
C07B61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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