专利名称：Process for the preparation of 1,4-diamino-2,3-dicyano-anthraquinone
发明人：Kröck, Friedrich Wilhelm, Dr.,Neeff, Rütger,
Dr.
申请号：EP81100329申请日：19810117公开号：EP0034257A3公开日：19810930
摘要：1.4-diamino-2.3 - dicyano - anthraquinone is obtained in good yields and highpurity by application of 1 - amino - 4 - bromine - anthraquinone - 2 - acid with ammoniaand subsequent implementation of the zwischenisolierthe 1.4 - diamino - anthraquinone -2 esters with cyandionen in formamide or n methylformamid.
申请人：BAYER AG
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