发明授权
- 专利标题: Process for the preparation of halo-2-mercaptobenzoxazoles
- 专利标题(中): 制备卤代-2-巯基苯并恶唑的方法
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申请号: US383209申请日: 1982-05-28
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公开(公告)号: US4442294A公开(公告)日: 1984-04-10
- 发明人: Reinhard Handte , Jurgen Sander , Thomas Tammer
- 申请人: Reinhard Handte , Jurgen Sander , Thomas Tammer
- 申请人地址: DEX Frankfurt am Main
- 专利权人: Hoechst Aktiengesellschaft
- 当前专利权人: Hoechst Aktiengesellschaft
- 当前专利权人地址: DEX Frankfurt am Main
- 优先权: DEX3121675 19810601
- 主分类号: C07D263/58
- IPC分类号: C07D263/58
摘要:
Preparation of 5- and 6-halo-2-mercaptobenzoxazoles or the sodium and potassium salts thereof by reaction of corresponding 4- or 5-halo-2-aminophenols with sodium or potassium lower alkyl xanthates in heterogeneous phase.
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