Picoline is the by-product in the preparation of diphenylamine with aniline. 甲基吡啶是苯胺连续缩合合成二苯胺的副产物。
Diphenylbenzidine was synthesized by diphenylamine using glacial acetic acid and water as solvent in acidic condition. 以二苯胺为原料,水和冰醋酸为溶剂,在酸性条件下一步合成二苯基联苯二胺,该方法具有操作简单,原料易得等优点。
Diphenylamine is an organic compound with the formula (C6H5)2NH. The compound is a derivative of aniline, consisting of an amine bound to two phenyl groups. The compound is a colorless solid, but commercial samples are often yellow due to oxidized impurities. Diphenylamine dissolves well in many common organic solvents, and is moderately soluble in water. It is used mainly for its antioxidant properties.