发明授权
US07081539B2 One-pot process for the preparation of 1,2-benzisoxazole-3-methanesulfonamide
失效
用于制备1,2-苯并异恶唑-3-甲磺酰胺的一锅法
- 专利标题: One-pot process for the preparation of 1,2-benzisoxazole-3-methanesulfonamide
- 专利标题(中): 用于制备1,2-苯并异恶唑-3-甲磺酰胺的一锅法
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申请号: US11088802申请日: 2005-03-25
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公开(公告)号: US07081539B2公开(公告)日: 2006-07-25
- 发明人: Yoshikazu Ueno , Tsutomu Ishikura
- 申请人: Yoshikazu Ueno , Tsutomu Ishikura
- 申请人地址: JP Osaka-Fu
- 专利权人: Dainippon Sumitomo Pharma Co., Ltd.
- 当前专利权人: Dainippon Sumitomo Pharma Co., Ltd.
- 当前专利权人地址: JP Osaka-Fu
- 代理机构: Wenderoth, Lind & Ponack, L.L.P.
- 主分类号: C07D261/20
- IPC分类号: C07D261/20
摘要:
A process for the preparation of 1,2-benzisoxazole-3-methanesulfonamide without isolation of intermediates in solid form, by using 4-hydroxycoumarin as a starting compound, and water and 1,2-dichloroethane as solvents; and an industrially useful process for the preparation of 1,2-benzisoxazole-3-acetic acid, by reacting 4-hydroxycoumarin and hydroxylamine in water.
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