发明申请
- 专利标题： Process for producing biphosphonic acids and forms thereof
- 专利标题（中）： 制备双膦酸的方法及其形式
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申请号： US11922064申请日： 2005-06-13
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公开(公告)号： US20090312551A1公开(公告)日： 2009-12-17
- 发明人: Satish Chandra Pandey , Hussain Haider , Sudhanshu Saxena , Manoj Kumar Singh , Rajesh Kumar Thaper , Sushil Kumar Dubey
- 申请人： Satish Chandra Pandey , Hussain Haider , Sudhanshu Saxena , Manoj Kumar Singh , Rajesh Kumar Thaper , Sushil Kumar Dubey
- 国际申请： PCT/IN2005/000192 WO 20050613
- 主分类号： C07F9/38
- IPC分类号： C07F9/38 ; C07F9/6506 ; C07F9/58
摘要：
Disclosed herein is a process for producing bisphosphonic acids and salts thereof. The process comprising reacting a carboxylic acid of Formula [I] with phosphorous acid and halophosphorus compound in the presence of a solvent selected from aliphatic hydrocarbon or water miscible cyclic ether. Further, the present invention also provides novel forms of bisphosphonic acids and process for preparation thereof.
公开/授权文献
- US07872144B2 Process for producing biphosphonic acids and forms thereof 公开/授权日：2011-01-18
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