发明申请
US20090286978A1 METHOD FOR PRODUCING BICYCLIC GUANIDINES BY USE OF A CYCLIC THIOUREA
有权
通过使用循环硫酸生产双相性胍类的方法
- 专利标题: METHOD FOR PRODUCING BICYCLIC GUANIDINES BY USE OF A CYCLIC THIOUREA
- 专利标题(中): 通过使用循环硫酸生产双相性胍类的方法
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申请号: US12120725申请日: 2008-05-15
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公开(公告)号: US20090286978A1公开(公告)日: 2009-11-19
- 发明人: Britt A. Minch , Charles R. Hickenboth , Richard F. Karabin , Steven R. Zawacky , Thomas R. Hockswender , Gregory J. McCollum
- 申请人: Britt A. Minch , Charles R. Hickenboth , Richard F. Karabin , Steven R. Zawacky , Thomas R. Hockswender , Gregory J. McCollum
- 申请人地址: US OH Cleveland
- 专利权人: PPG INDUSTRIES OHIO, INC.
- 当前专利权人: PPG INDUSTRIES OHIO, INC.
- 当前专利权人地址: US OH Cleveland
- 主分类号: C07D253/08
- IPC分类号: C07D253/08
摘要:
The present invention is directed to a method producing bicyclic guanidine comprising heating a cyclic thiourea to a temperature ranging from ≧140° C. in a substantially non-hydrocarbon solvent to form the bicyclic guanidine.
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