发明申请
- 专利标题： Method For Producing Semicarbazones
- 专利标题（中）： 生产缩氨基脲的方法
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申请号： US10592271申请日： 2005-03-16
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公开(公告)号： US20070203356A1公开(公告)日： 2007-08-30
- 发明人: Thomas Zierke , Stefan Engel , Peter Otto
- 申请人： Thomas Zierke , Stefan Engel , Peter Otto
- 优先权： EP04006413.1 20040317; DE102004013083.3 20040317
- 国际申请： PCT/EP05/02802 WO 20050316
- 主分类号： C07C281/06
- IPC分类号： C07C281/06
摘要：
The invention relates to a process for preparing semicarbazone compounds of the formula I, where R1 and R2 are each independently hydrogen, halogen, CN, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-haloalkyl or C1-C4-haloalkoxy, and R3 is C1-C4-alkoxy, C1-C4-haloalkyl or C1-C4-haloalkoxy, by reacting a hydrazone compound of the general formula II, where R is C1-C4-alkoxy, amino, C1-C4-alkylamino or di(C1-C4-alkyl)amino, and R1, R2 are each as defined above, with an aniline compound of the general formula III where R3 is as defined above.
公开/授权文献
- US07795465B2 Method for producing semicarbazones 公开/授权日：2010-09-14
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