申请人:Nippon Shokubai Kagaku Kogyo Co., Ltd.
公开号:US03966775A1
公开(公告)日:1976-06-29
A process for the preparation of 1-substituted anthraquinones represented by the general formula I ##EQU1## where, in the formula, R.sub.1 and R.sub.2 represent individually a hydrogen atom or methyl group and X represents a hydroxylamino or amino group, Which comprises treating in a liquid medium a 5-nitro-1,4,4a,9a-tetrahydroanthraquinone represented by the general formula II ##EQU2## where, in the general formula, R.sub.1 and R.sub.2 represent individually a hydrogen atom or methyl group, In the presence of a basic compound with or without a reducing agent.
一种制备1-取代蒽醌的方法,其表示为通用式I
其中,在该式中,R.sub.1和R.sub.2分别代表氢原子或甲基基团,X代表羟胺基或氨基,包括在液体介质中处理通用式II所表示的5-硝基-1,4,4a,9a-四氢蒽醌,其中,在通用式中,R.sub.1和R.sub.2分别代表氢原子或甲基基团,在碱性化合物的存在下或不含还原剂。