发明授权
US08431718B2 Process for the preparation of 5-fluoro-1-alkyl-3-fluoroalky1-1H-pyrazole-4-carbonyl chlorides and fluorides
有权
制备5-氟-1-烷基-3-氟烷基-1H-吡唑-4-羰基氯和氟化物的方法
- 专利标题: Process for the preparation of 5-fluoro-1-alkyl-3-fluoroalky1-1H-pyrazole-4-carbonyl chlorides and fluorides
- 专利标题(中): 制备5-氟-1-烷基-3-氟烷基-1H-吡唑-4-羰基氯和氟化物的方法
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申请号: US13092429申请日: 2011-04-22
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公开(公告)号: US08431718B2公开(公告)日: 2013-04-30
- 发明人: Sergii Pazenok , Norbert Lui , Stephanie Gary
- 申请人: Sergii Pazenok , Norbert Lui , Stephanie Gary
- 申请人地址: DE Monheim
- 专利权人: Bayer CropScience AG
- 当前专利权人: Bayer CropScience AG
- 当前专利权人地址: DE Monheim
- 代理机构: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- 优先权: EP10160885 20100423
- 主分类号: C07D231/10
- IPC分类号: C07D231/10
摘要:
The present invention relates to a novel process for the preparation of 5-fluoro-1-alkyl-3-fluoroalkyl-1H-pyrazole-4-carbonyl halides and the intermediates occurring in this process, ethyl 5-chloro-1-methyl-3-difluoromethyl-1H-pyrazole-4-carboxylate and ethyl 5-fluoro-1-methyl-3-difluoromethyl-1H-pyrazole-4-carboxylate.
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