Process for preparing 2-{8 2-(arylamino)-vinyl{9 -1-(lower alkyl)-3-h-indolium salt dyes
    1.
    发明授权
    Process for preparing 2-{8 2-(arylamino)-vinyl{9 -1-(lower alkyl)-3-h-indolium salt dyes 失效
    制备2- {8 2-(亚氨基) - 乙酸{9-1(低级烷基)-3-H-吲哚盐酸盐)的方法

    公开(公告)号:US3673178A

    公开(公告)日:1972-06-27

    申请号:US3673178D

    申请日:1969-11-14

    申请人: ALLIED CHEM

    IPC分类号: C09B23/16 C07D27/38

    CPC分类号: C09B23/164

    摘要: Production of water-soluble cationic dyes by reaction of 1-lower alkyl- Delta 2, -indolineacetaldehydes, primary and secondary aromatic amines and orthophosphoric acid in an inert watermiscible organic solvent. This improved process provides a substantially quantitative product yield while avoiding addition of dye-precipitating agent to the reaction mass.

    摘要翻译: 通过1-惰性水溶性有机溶剂中1-低级烷基-TATA 2, - 二氢乙醛,伯和仲芳族胺和正磷酸的反应生产水溶性阳离子染料。 该改进的方法提供基本上定量的产物产率,同时避免向反应物料中加入染料沉淀剂。