Processes are provided for preparing complexes of 2,3,5,6-tetraaminotoluene with an aromatic diacid where the aromatic diacid is insoluble in water under ambient conditions. An integrated process design starting with nitration of 2,6-dihalotoluene eliminates costly intermediate drying and recrystallization steps. Handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.
提供了制备2,3,5,6-四
氨基
甲苯与芳香族二酸络合物的工艺,其中芳香族二酸在常温下不溶于
水。采用从2,6-二卤
甲苯的硝化开始的一体化工艺设计,消除了昂贵的中间干燥和重结晶步骤。避免了可能具有皮肤致敏性和毒性的固体材料的处理,从而消除了人类和环境的暴露。