发明授权
US3897487A Preparation of 5-fluoro-2-methyl-1-(p-methylsulfinylbenzylidene) indenyl-3-acetic acid
失效
5-氟-2-甲基-1-(对甲基亚磺酰基亚苄基)茚基-3-乙酸的制备
- 专利标题: Preparation of 5-fluoro-2-methyl-1-(p-methylsulfinylbenzylidene) indenyl-3-acetic acid
- 专利标题(中): 5-氟-2-甲基-1-(对甲基亚磺酰基亚苄基)茚基-3-乙酸的制备
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申请号: US40294473申请日: 1973-10-03
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公开(公告)号: US3897487A公开(公告)日: 1975-07-29
- 发明人: JONES HOWARD
- 申请人: MERCK & CO INC
- 专利权人: Merck Sharp & Dohme Corp
- 当前专利权人: Merck Sharp & Dohme Corp
- 优先权: US40294473 1973-10-03
- 主分类号: C07C45/48
- IPC分类号: C07C45/48 ; C07C49/697 ; C07C63/68 ; C07C317/00 ; C07D317/72 ; C07F9/54 ; C07C147/00
摘要:
Process for preparing 5-fluoro-2-methyl-1-(pmethylsulfinylbenzylidene)-indenyl-3-acetic acid, by reacting 5fluoro-2-methylindene-1,3-dione-3,3''-o-ethylene ketal with a pmethylsulfinylbenzyl compound, hydrolysis, and subsequent reaction with a malonic acid ester.
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