发明名称 |
Phosphorylation process. |
摘要 |
<p>A process for the preparation of an aromatic phosphonous dihalide which comprises reacting an aromatic compound with a phosphorus trihalide in the presence of a superacid, said superacid being an acid having an Hammett acidity function, Ho, which is more negative than -12. The aromatic phosphonous dihalides are useful as precursors for the preparation of phosphonites and phosphinites useful as catalysts for the dimerisation of acrylonitrile.</p> |
申请公布号 |
EP0024128(A2) |
申请公布日期 |
1981.02.25 |
申请号 |
EP19800302499 |
申请日期 |
1980.07.23 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
COZENS, ROSS JAMES;HOGAN, PHILIP JOHN;LALKHAM, MICHAEL JOHN |
分类号 |
B01J31/02;B01J31/10;C07B61/00;C07F9/52;(IPC1-7):07F9/52;07C121/32;01J31/02;07F9/48;07F9/46 |
主分类号 |
B01J31/02 |
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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