发明授权
- 专利标题： Process for the preparation of sulfonated arylphosphines
- 专利标题（中）： 制备磺化芳基膦的方法
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申请号： US264720申请日： 1994-06-23
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公开(公告)号： US5451698A公开(公告)日： 1995-09-19
- 发明人: Helmut Bahrmann , Peter Lappe , Wolfgang A. Herrmann , Rainer Manetsberger , Guido Albanese , Klaus Bergrath
- 申请人： Helmut Bahrmann , Peter Lappe , Wolfgang A. Herrmann , Rainer Manetsberger , Guido Albanese , Klaus Bergrath
- 申请人地址： DEX
- 专利权人： Hoechst Aktiengesellschaft
- 当前专利权人： Hoechst Aktiengesellschaft
- 当前专利权人地址： DEX
- 优先权： DEX4321512.2 19930629; DEX4344066.5 19931223
- 主分类号： B01J21/02
- IPC分类号： B01J21/02 ; C07B61/00 ; C07F9/50 ; C07C309/32
摘要：
The sulfonation of arylphosphines, i.e. mono-, di-, oligo- and polyphosphines, which contain at least one aromatic radical capable of being sulfonated, is carried out in the presence of a Lewis acid at 0.degree. to 80.degree. C. The process avoids side-reactions, in particular the formation of phosphine oxides. In treating the sulfonation mixture, the Lewis acid can be removed together with the sulfuric acid.
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