发明公开
EP0244810A1 Process for producing 2-oxazolidinones
失效
Verfahren zur Herstellung von 2-Oxazolidinonen。
- 专利标题： Process for producing 2-oxazolidinones
- 专利标题（中）： Verfahren zur Herstellung von 2-Oxazolidinonen。
-
申请号： EP87106458.0申请日： 1987-05-05
-
公开(公告)号： EP0244810A1公开(公告)日： 1987-11-11
- 发明人: Kajimoto, Nobuyuki , Nagata, Tereuyuki , Wada, Masaru , Tamaki, Akihiro
- 申请人： MITSUI TOATSU CHEMICALS, Inc.
- 申请人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 代理机构： Gervasi, Gemma, Dr.
- 优先权： JP101935/86 19860506
- 主分类号： C07D263/22
- IPC分类号： C07D263/22
摘要：
An improved process for producing a 2-oxazolidinone of the formula
wherein R represents hydrogen atom or a lower alkyl group and R 1 and R 2 are the same as or different and each represent hydrogen atom or a lower alkyl group, by reacting an amino-alcohol of the formula
wherein R, R 1 and R 2 are each as defined above, and/or its hydrochloride, with phosgene is provided, which process is characterized by carrying out the reaction substantially in the presence of water and a dehydrochlorinating agent, preferably while keeping the pH of the reaction liquid within a range of 3.0 to 10.0 with the dehydrochlorinating agent in water solvent.
wherein R represents hydrogen atom or a lower alkyl group and R 1 and R 2 are the same as or different and each represent hydrogen atom or a lower alkyl group, by reacting an amino-alcohol of the formula
wherein R, R 1 and R 2 are each as defined above, and/or its hydrochloride, with phosgene is provided, which process is characterized by carrying out the reaction substantially in the presence of water and a dehydrochlorinating agent, preferably while keeping the pH of the reaction liquid within a range of 3.0 to 10.0 with the dehydrochlorinating agent in water solvent.
公开/授权文献
- EP0244810B1 Process for producing 2-oxazolidinones 公开/授权日：1992-03-11
信息查询
