发明授权
- 专利标题： Process for preparation of 2-oxazolidinones
- 专利标题（中）： 2-恶唑烷酮的制备方法
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申请号： US479400申请日： 1983-03-28
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公开(公告)号： US4500717A公开(公告)日： 1985-02-19
- 发明人: Frank T. Cook , Michael O. Nutt , Hsin H. Hsieh
- 申请人： Frank T. Cook , Michael O. Nutt , Hsin H. Hsieh
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： C07D263/22
- IPC分类号： C07D263/22
摘要：
The invention is a process for the preparation of 2-oxazolidinones which comprises contacting a 2-hydroxyalkyl carbamate with an alkylene oxide or alkylene carbonate in the presence of a catalytic amount of a quaternary ammonium halide, quaternary phosphonium halide, a group I metal carbonate, hydroxide, oxide or halide, or a group II metal carbonate, hydroxide, oxide or halide under conditions such that a 2-oxazolidinone is prepared.
公开/授权文献
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