申请人:RITTER JOACHIM C.
公开号:US20100160686A1
公开(公告)日:2010-06-24
A process is provided to produce 2,3,5,6-tetraaminotoluene. Highly pure salts of 2,3,5,6-tetraaminotoluene are produced via reduction of 2,6-diamino-3,5-dinitrotoluene. The 2,3,5,6-tetraaminotoluene salt is precipitated as a clean (>99% purity) product. The salt is a precursor for monomers to make a polybenzimidazole for high performance fibers.
提供了一个生产2,3,5,6-四氨基甲苯的工艺。通过还原2,6-二氨基-3,5-二硝基甲苯制备高纯度的2,3,5,6-四氨基甲苯盐。2,3,5,6-四氨基甲苯盐以纯净度超过99%的产品沉淀。这种盐是合成高性能纤维聚苯并咪唑的单体的前体。