发明授权
EP0530335B1 DIPHOSPHONSAUREDERIVATE ALS ZWISCHENPRODUKTE ZUR HERSTELLUNG VON DIPHOSPHINLIGANDEN
失效
DIPHOSPHONSAUREDERIVATE中间产品用于制备双膦
- 专利标题: DIPHOSPHONSAUREDERIVATE ALS ZWISCHENPRODUKTE ZUR HERSTELLUNG VON DIPHOSPHINLIGANDEN
- 专利标题(英): Diphosphonic acid derivates as intermediates for the production of diphosphine ligands
- 专利标题(中): DIPHOSPHONSAUREDERIVATE中间产品用于制备双膦
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申请号: EP92905278.5申请日: 1992-03-12
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公开(公告)号: EP0530335B1公开(公告)日: 1996-08-14
- 发明人: FORICHER, Joseph , HEISER, Bernd , SCHMID, Rudolf
- 申请人: F. HOFFMANN-LA ROCHE AG
- 申请人地址: Postfach 3255 4002 Basel CH
- 专利权人: F. HOFFMANN-LA ROCHE AG
- 当前专利权人: F. HOFFMANN-LA ROCHE AG
- 当前专利权人地址: Postfach 3255 4002 Basel CH
- 代理机构: Cottong, Norbert A.
- 优先权: CH794/91 19910315
- 国际公布: WO9216535 19921001
- 主分类号: C07F9/40
- IPC分类号: C07F9/40 ; C07F9/42 ; C07F9/50
摘要:
New racemic, optically active phosphorus compounds have the formula (I), in which R stands for lower alkyl, lower alkoxy or a protected hydroxy group; R1 stands for lower alkoxy, phenoxy, benzyloxy, chlorine or bromine; R2 stands for lower alkyl or lower alkoxy and n equals 0, 1 or 2. These compounds represent precious intermediates for the production of known as well as new diphosphine ligands.
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