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

Process for the preparation of 2,4,6-tris(aminophenylamino)triazines
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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