发明授权
- 专利标题: Method for producing 7-(pyrazole-3-yl) benzoxazoles
- 专利标题(中): 7-(吡唑-3-基)苯并恶唑的制备方法
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申请号: US10221206申请日: 2001-03-15
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公开(公告)号: US06888003B2公开(公告)日: 2005-05-03
- 发明人: Cyrill Zagar , Robert Reinhard , Michael Puhl , Thorsten Volk , Norbert Götz , Gerhard Hamprecht , Olaf Menke , Ingo Sagasser
- 申请人: Cyrill Zagar , Robert Reinhard , Michael Puhl , Thorsten Volk , Norbert Götz , Gerhard Hamprecht , Olaf Menke , Ingo Sagasser
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Keil & Weinkauf
- 优先权: DE10012804 20000316
- 国际申请: PCTEP01/02947 WO 20010315
- 国际公布: WO0168644 WO 20010920
- 主分类号: C07D231/12
- IPC分类号: C07D231/12 ; A01N43/56 ; A01N43/76 ; C07B61/00 ; C07D231/16 ; C07D231/18 ; C07D413/04 ; C07D413/14 ; C07D498/00
摘要:
A process for preparing 7-(pyrazol-3-yl)benzoxazoles of the formula I in which the variables R1-R6 are as defined in claim 1, which process is characterized in that a 2-halo-3-(pyrazol-3-yl)anilide of the formula II, in which X is bromine or iodine is reacted with a base in the presence of a transition metal compound of subgroup VIIa, VIIIa or Ib of the Periodic Table of the Elements, is disclosed.
公开/授权文献
- US20030050477A1 Method for producing 7-(pyrazole-3-yl) benzoxazoles 公开/授权日:2003-03-13
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