An improved method for synthesis of 5 - nitroso - 2,4,6 - triaminopyrimidine by using dimethyl sulfox-ide and xylene as mixed solvents for azeotropic dewatering was developed.

• 研究了一种合成5-亚硝基-2,4,6-三氨基嘧啶的改进方法,该法采用二甲基亚砜和二甲苯作为混合溶剂共沸脱水,克服了单一极性溶剂脱水困难的缺点。