发明名称 |
Process to prepare a multidentate phosphite compound |
摘要 |
<p>A process to prepare a multidentate phosphite compound according to the general formula (1) <IMAGE> in which n is 2-6, R is an n-valent organic group and R1 and R2 are fused aromatic ring systems with 2 or more rings, which rings are substituted on the ortho position relative to the oxygen atom only with hydrogen, by first preparing a phosphorochloridite compound from a R1-OH and R2-OH alcohol compound and a phosphorus chloride compound and subsequently contacting the phosphorochloridite compound with an alcoholic compound according to R-(OH)n, wherein the phosphorochloridite is prepared by performing the two steps in a solvent: a) contacting a compound with the general formula: <IMAGE> (2) in which R3 and R4 are C1-C4 alkyl groups, with the R1OH and R2OH compounds, and b) contacting the resulting compound of step (a) which has the formula (3): <IMAGE> (3) with HY, wherein Y is a halogen.</p> |
申请公布号 |
EP0888364(B1) |
申请公布日期 |
2002.02.06 |
申请号 |
EP19970908576 |
申请日期 |
1997.03.07 |
申请人 |
DSM N.V.;E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
SNIJDER, CARINA, SACHA;TEUNISSEN, ANTONIUS, JACOBUS, JOSEPHUS, MARIA;HANSEN, CAROLINA, BERNEDETTE;SHAPIRO, RAFAEL;GARNER, JAMES, MICHAEL |
分类号 |
B01J31/22;B01J31/18;C07B61/00;C07C45/50;C07C47/00;C07C51/14;C07C67/347;C07C67/38;C07C69/716;C07F9/145;C07F9/146;(IPC1-7):C07F9/145;C07F9/24 |
主分类号 |
B01J31/22 |
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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