发明名称 |
Process for preparing phosphine oxides and process for purifying the same |
摘要 |
A process for preparing phosphine oxides by reacting iminophosphoranes with phosphorus oxytrichloride by which highly purified phosphine oxides can be obtained industrially in a higher yield. Specifically, phosphine oxides are prepared in such a manner that iminophosphoranes are reacted with phosphorus oxytrichloride using an aprotic organic solvent with permittivity 2.2 or more at 20° C. as a solvent under special reaction conditions to give a liquid reaction product containing phosphine oxides and aminophosphonium chlorides which are yielded as a by-product at the same time as the phosphine oxides, and the above described chlorides are removed from the above described liquid reaction product by a solid-liquid separation process, and the solution having been subjected to the solid-liquid separation process is washed with water.
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申请公布号 |
US6303815(B1) |
申请公布日期 |
2001.10.16 |
申请号 |
US20000548624 |
申请日期 |
2000.04.13 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
NOBORI TADAHITO;HARA ISAO;FUNAKI KATSUHIKO;HAYASHI TAKAOMI;SHIBAHARA ATSUSHI;KIYONO SHINJI;MIZUTANI KAZUMI;TAKAKI USAJI |
分类号 |
C07F9/535;C07F9/02;C07F9/22;(IPC1-7):C07F9/22 |
主分类号 |
C07F9/535 |
代理机构 |
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代理人 |
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