A preparation method for an aryl substituted p-phenylenediamine substance is provided. A structural formula of the aryl substituted p-phenylenediamine substance is shown as Formula (I'), where R" is phenyl or o-methylphenyl, and R' is the same as or different from R"; and the preparation method comprises that: a raw material A and a raw material B are reacted in the presence of a hydrogen acceptor and a catalyst to form the aryl substituted p-phenylenediamine substance, the raw material A having a structure shown as Formula (I), the raw material B being cyclohexanone and/or o-methylcyclohexanone and the hydrogen acceptor being a hydrogen acceptor capable of accepting hydrogen for conversion into the raw material B. The raw materials are low in cost and readily available, and use of a large amount of water for posttreatment of reaction is avoided. A reaction condition is relatively mild, and corrosion to reaction equipment is avoided.
本发明提供了一种芳基取代的
对苯二胺物质的制备方法。芳基取代的
对苯二胺物质的结构式如式(I')所示,其中 R" 是苯基或邻甲基苯基,R'与 R" 相同或不同;该制备方法包括: 1:原料 A 和原料 B 在氢受体和催化剂存在下反应生成芳基取代的
对苯二胺物质,原料 A 具有如式(I)所示的结构,原料 B 是
环己酮和/或邻甲基
环己酮,氢受体是能够接受氢转化为原料 B 的氢受体。原料成本低且容易获得,避免了使用大量
水进行反应后处理。反应条件相对温和,避免了对反应设备的腐蚀。