发明授权
- 专利标题： Production process of diphosphine oxide and diphosphonate
- 专利标题（中）： 二氧化膦和二膦酸盐的生产工艺
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申请号： US09899207申请日： 2001-07-06
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公开(公告)号： US06472539B1公开(公告)日： 2002-10-29
- 发明人: Tohru Yokozawa , Takao Saito , Noboru Sayo , Takero Ishizaki
- 申请人： Tohru Yokozawa , Takao Saito , Noboru Sayo , Takero Ishizaki
- 主分类号： C07F940
- IPC分类号： C07F940
摘要：
A process for producing a diphosphine oxide or diphosphonate represented by formula (1) as defined, which comprises treating, with a base, a phosphine compound represented by formula (2) as defined and adding the thus-treated phosphine compound to a nonpolar solvent having an oxidative metal compound suspended therein so as to effect dimerization. The present invention makes it possible to produce, conveniently, in a high yield and safely, a diphosphine oxide or diphosphonate which is an intermediate for producing a diphosphine compound useful as a ligand of a metal complex serving as a catalyst for asymmetric synthesis reaction.
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