发明授权
- 专利标题： N-Substituted phenyl maleimides
- 专利标题（中）： N-取代的苯基马来酰亚胺
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申请号： US201901申请日： 1980-10-29
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公开(公告)号： US4400521A公开(公告)日： 1983-08-23
- 发明人: Masayuki Oba , Motoo Kawamata , Hikotada Tsuboi , Nobuhito Koga
- 申请人： Masayuki Oba , Motoo Kawamata , Hikotada Tsuboi , Nobuhito Koga
- 申请人地址： JPX Tokyo
- 专利权人： Mitsui Toatsu Chemicals, Incorporated
- 当前专利权人： Mitsui Toatsu Chemicals, Incorporated
- 当前专利权人地址： JPX Tokyo
- 主分类号： C07D207/44
- IPC分类号： C07D207/44 ; C07D207/452
摘要：
Maleimide compounds represented by the general formula (I) ##STR1## where R and R' are a hydrogen atom, a halogen atom, or an alkyl radical of from 1 to 4 carbon atoms, and n and n' are a whole number of from 1 to 4; and a process for the preparation of the maleimide compounds, in which a maleamic acid represented by the general formula (II) ##STR2## where R and R' are a hydrogen atom, a halogen atom, or an alkyl radical of from 1 to 4 carbon atoms, and n and n' are a whole number of from 1 to 4, is contacted with a dehydrating agent in an organic solvent.
公开/授权文献
- US4846390A Automatic soldering apparatus 公开/授权日：1989-07-11