CAS: 145-49-3; 1,5-Diamino-4,8-Dihydroxyanthracene-9,10-Dione

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1,5-Diazido-Anthraquinone置于硫酸体系中,化学反应生成1,5-二氨基-4,8-二羟基-9,10-蒽二酮
参考文献:Brass; Albrecht,Chemische Berichte,1928,Vol. 61,P. 988
标题:Brass; Albrecht,Chemische Berichte,1928,Vol. 61,P. 988

专利信息

专利号:CN-101054681-A
优先权日:2007-02-14
标题:Method for one-step electrolytic synthesis of 1,5-diamino-4,8-dihydroxyanthraquinone

专利号:US-4045457-A
优先权日:1974-10-23
标题:Anthraquinone dyestuffs
发明人：GEHRKE GUNTER; SCHMITZ REINOLD; BIEN HANS-SAMUEL; HERZOG HELMUT
权利人:BAYER AG
摘要:The invention relates to a process for the preparation of water-insoluble chlorine-containing diaminodihydroxyanthraquinone dyestuffs. The process consists in that 2,8-dichloro-1,5-dinitroanthraquinone and/or 2,5-dichloro-1,8-dinitroanthraquinone is warmed with sulphur in concentrated sulphuric acid having a maximum SO 3 content of 20% - possibly in the presence of boric acid - the resulting compounds are, if appropriate, post-halogenated and/or alkylated, preferably in the same reaction batch. n The main advantage of this process is that it starts from 1,6- and/or 1,7-dichloroanthraquinone, for which there was hitherto no industrial use, but which unavoidably also arise during the synthesis 1,5- and 1,8-dichloroanthraquinones.