发明授权
US4650867A Process for the preparation of 2,4,6-tris(aminophenylamino)triazines
失效
制备2,4,6-三(氨基苯基氨基)三嗪的方法
- 专利标题: Process for the preparation of 2,4,6-tris(aminophenylamino)triazines
- 专利标题(中): 制备2,4,6-三(氨基苯基氨基)三嗪的方法
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申请号: US841494申请日: 1986-03-19
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公开(公告)号: US4650867A公开(公告)日: 1987-03-17
- 发明人: Roland Ronco , Willy Stingelin , Ernst Hanggi
- 申请人: Roland Ronco , Willy Stingelin , Ernst Hanggi
- 申请人地址: NY Ardsley
- 专利权人: Ciba-Geigy Corporation
- 当前专利权人: Ciba-Geigy Corporation
- 当前专利权人地址: NY Ardsley
- 优先权: CHX1315/85 19850326
- 主分类号: C07D251/70
- IPC分类号: C07D251/70 ; C09B43/16
摘要:
A process for the preparation of 2,4,6-tris(aminophenylamino)triazines by condensing s-trichlorotriazine with 3 equivalents of a partially protected phenylenediamine and subsequently removing the protective groups, which process comprises carrying out the condensation in an anhydrous or water-containing aliphatic C.sub.2 -C.sub.4 alcohol, in the presence of an acid acceptor.2,4,6-Tris(aminophenylamino)triazines are important intermediates in dyestuff chemistry and are used, inter alia, for synthesizing textile, leather and paper dyes as well as pigments.
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