Synthesis Of Triphenodioxazine Pigments
    1.
    发明申请
    Synthesis Of Triphenodioxazine Pigments 审中-公开
    三苯并二恶嗪颜料的合成

    公开(公告)号:US20110098466A1

    公开(公告)日:2011-04-28

    申请号:US12673998

    申请日:2006-06-12

    IPC分类号: C07D498/22

    CPC分类号: C09B19/02

    摘要: The invention relates to a process for the preparation of compounds of the general formula (I) where X are halogen atoms, the rings labeled A are linearly or angularly fused in position 1,2; 2,3 or 3,4, and in position 8,9; 9,10 or 10,11, to a 5- or 6-membered heterocyclic ring containing in the ring one nitrogen atom and one oxygen atom, or containing in the ring two nitrogen atoms, comprising an oxidation of a 3,6-bisarylamino-2,5-dihalobenzoquinone of the formula (II) in an aprotic-polar organic solvent in the presence of an organic sulfonic acid.

    摘要翻译: 本发明涉及制备通式(I)的化合物的方法,其中X是卤素原子,标记为A的环在1,2位线性或角度融合; 2,3或3,4,位置8,9; 9,10或10,11,涉及在环中含有一个氮原子和一个氧原子或在环中含有两个氮原子的5-或6-元杂环,其包含3,6-双芳基氨基 - (II)的2,5-二卤代苯醌在非质子极性有机溶剂中,在有机磺酸存在下进行。