申请人:Ciba-Geigy Corporation
公开号:US04770818A1
公开(公告)日:1988-09-13
There is disclosed a process for the preparation of 1-aminoanthraquinones from 5-nitro-1,4,4a,9a-tetrahydroanthraquinones with a basic reducing agent, which process is carried out under pressure in the temperature range above 100.degree. C. and in an aqueous-organic medium. The process affords very pure 1-aminoanthraquinone, which is, inter alia, an important intermediate.
本发明公开了一种从5-硝基-1,4,4a,9a-四氢蒽醌中使用碱性还原剂制备1-氨基蒽醌的方法,该方法在高于100°C的温度范围内,在水-有机介质中施加压力进行。该过程得到非常纯净的1-氨基蒽醌,是重要的中间体之一。