发明授权
- 专利标题: Process for preparing 3-isochromanone
- 专利标题(中): 3-异色满酮的制备方法
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申请号: US202401申请日: 1998-12-14
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公开(公告)号: US6008381A公开(公告)日: 1999-12-28
- 发明人: Alfred Glyn Williams , Michael Charles Henry Standen , Nicholas Russell Foster , Raymond Vincent Heavon Jones
- 申请人: Alfred Glyn Williams , Michael Charles Henry Standen , Nicholas Russell Foster , Raymond Vincent Heavon Jones
- 申请人地址: GBX
- 专利权人: Zeneca Limited
- 当前专利权人: Zeneca Limited
- 当前专利权人地址: GBX
- 优先权: GBX9612623 19960617
- 主分类号: B01J27/08
- IPC分类号: B01J27/08 ; C07D311/20 ; C07D311/76 ; C07D311/04
摘要:
3-Isochromanone is prepared by reacting o-tolyacetic acid with sulphuryl chloride in the presence of a free radical initiator, e.g. AIBN, followed by ring closure of the 2-chloromethylphenylacetic acid so formed with a base, e.g. potassium bicarbonate.
公开/授权文献
- US5512562A Tricyclic 2,3,4,5-tetrahydro-1H-3-benzapines 公开/授权日:1996-04-30
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