发明授权
- 专利标题： Process for preparing 4-(4-biphenylyl)-4-oxo-butanoic acid
- 专利标题（中）： 制备4-（4-联苯基）-4-氧代 - 丁酸的方法
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申请号： US668335申请日： 1984-11-05
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公开(公告)号： US4621154A公开(公告)日： 1986-11-04
- 发明人: Haruhiko Kikuchi
- 申请人： Haruhiko Kikuchi
- 申请人地址： JPX both of JPX both of
- 专利权人： Nisshin Flour Milling Co., Ltd.,Nisshin Chemicals Co., Ltd.
- 当前专利权人： Nisshin Flour Milling Co., Ltd.,Nisshin Chemicals Co., Ltd.
- 当前专利权人地址： JPX both of JPX both of
- 优先权： JPX58-213403 19831115
- 主分类号： C07C59/84
- IPC分类号： C07C59/84 ; B01J27/00 ; C07B61/00 ; C07C51/00 ; C07C51/347 ; C07C51/373 ; C07C67/00 ; C07C59/86
摘要：
An improved process for preparing 4-(4-biphenylyl)-4-oxo-butanoic acid which is useful as anti-inflammatory and analgesic agents. The process comprises reacting biphenyl with succinic anhydride in chlorobenzene in the presence of anhydrous aluminum chloride. No 4-(4-chlorophenyl)-4-oxo-butanoic acid is produced as by-product.
公开/授权文献
- US5076222A Valve control system for internal combustion engine 公开/授权日：1991-12-31
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