发明名称 |
PROCESS FOR THE CARBONYLATION OF PENTENENITRILE |
摘要 |
Process to prepare a 5-cyanovaleric acid or its ester by carbonylation of a pentenenitrile, wherein pentenenitrile is reacted with carbon monoxide and water or an alcohol in the presence of a catalyst system. The catalyst system comprises: (a) a metal of Group VIII or a compound thereof and (b) a bidentate phosphine, arsine and/or stibine ligand, wherein the bidentate ligand has the general formula (I): R<1>R<2>-M<1>-R-M<2>-R<3>R<4> wherein M<1> and M<2> are independently P, As or Sb, R is a divalent organic bridging group, which bridging group. (c) an acid having a pKa less than 3, as measured at 18 DEG C in an aqueous solution. |
申请公布号 |
WO0172697(A3) |
申请公布日期 |
2002.05.16 |
申请号 |
WO2001EP02903 |
申请日期 |
2001.03.14 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
DRENT, EIT;JAGER, WILLEM, WABE |
分类号 |
C07D223/10;B01J31/18;B01J31/24;B01J31/28;C07B61/00;C07C67/38;C07C253/30;C07C255/19;C07D201/08 |
主分类号 |
C07D223/10 |
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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