发明名称 |
MINIMIZATION OF LIGAND DEGRADATION PRODUCTS, OF REVERSION OF SAME TO USEFUL PHOSPHINE LIGANDS |
摘要 |
<p>A process for the minimization of phosphonium ion ligand degradation products formed during reaction of a polyunsaturated olefin or an unconjugated functionalized olefin in the presence of a transition metal-triorganophosphine ligand complex catalyst to form as a product, by-product, or intermediate product a conjugated functionalized olefin having a carbon-carbon double bond conjugated to an a-electronwithdrawing group, such as, an a,ß-unsaturated aldehyde, ketone, ester, acid, or nitrile. The minimization process involves conducting the reaction under selected conditions of conversion, temperature, pressure, or a combination thereof; and/or by selecting a triorganophosphine ligand with a specified steric and/or electronic property. Further, a process for reversion of phosphonium ion ligand degradation product(s) back to useful triorganophosphine ligand(s), the reversion involving treating a reaction product fluid containing the degradation product(s) with an inert gas, hydrogen, synthesis gas, or a mixture thereof under conditions sufficient to regenerate the triorganophosphine ligand(s).</p> |
申请公布号 |
WO2005007602(A1) |
申请公布日期 |
2005.01.27 |
申请号 |
WO2004US20813 |
申请日期 |
2004.06.28 |
申请人 |
UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION;BRIGGS, JOHN, R.;PENG, WEI-JUN;ROESCH, BRIAN, M.;ABATJOGLOU, ANTHONY, G.;MORRISON, DONALD, L. |
发明人 |
BRIGGS, JOHN, R.;PENG, WEI-JUN;ROESCH, BRIAN, M.;ABATJOGLOU, ANTHONY, G.;MORRISON, DONALD, L. |
分类号 |
C07C29/16;C07C45/50;C07C45/62;C07C67/38;C07F9/50;(IPC1-7):C07C29/16;C07C33/03;C07C47/21 |
主分类号 |
C07C29/16 |
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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