发明授权
US5401846A Preparation of 5-halo-2-(1-anthraquinonylamino)-benzoic acids and
4'-halo-2,1(N)-anthraquinonyl-1',2'(N)-benzacridones
失效
制备5-卤代-2-(1-蒽醌基氨基) - 苯甲酸和4'-卤代-2,1(N) - 蒽醌-1',2'(N) - 苯并吖啶酮
- 专利标题: Preparation of 5-halo-2-(1-anthraquinonylamino)-benzoic acids and 4'-halo-2,1(N)-anthraquinonyl-1',2'(N)-benzacridones
- 专利标题(中): 制备5-卤代-2-(1-蒽醌基氨基) - 苯甲酸和4'-卤代-2,1(N) - 蒽醌-1',2'(N) - 苯并吖啶酮
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申请号: US79941申请日: 1993-06-23
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公开(公告)号: US5401846A公开(公告)日: 1995-03-28
- 发明人: Michael Schmitt , Matthias Niedenbrueck , Manfred Patsch
- 申请人: Michael Schmitt , Matthias Niedenbrueck , Manfred Patsch
- 申请人地址: DEX Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Ludwigshafen
- 优先权: DEX4221606.0 19920701
- 主分类号: C07D219/06
- IPC分类号: C07D219/06 ; C07C227/16 ; C07C229/58 ; C09B1/32 ; C09B5/34
摘要:
There are described the preparation of 5-halo-2-(1-anthraquinonylamino)benzoic acids of the general formula I ##STR1## (X.sup.1 : Cl or Br; X.sup.2 : H, Cl or Br, identical or different when n>1; n: 1-6) by reacting 2-(1-anthraquinonylamino)benzoic acids II ##STR2## with the halogen in the presence of sulfuric acid, and the preparation of 4'-halo-2,1(N)-anthraquinonyl-1',2'(N)-benzacridones III ##STR3## by cyclizing condensation of the acids I.
公开/授权文献
- US4779742A Article holder 公开/授权日:1988-10-25
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