2,6-二（对氨基苯）苯并[1,2-d;5,4-d']二噁唑的合成和纯化

1,2,3-三氯苯经过硝化、水解、催化加氢、缩合等四步反应，合成了2,6-二（ 对氨基苯）苯并1,2-d;5,4-d']二噁唑，总产率为70%。同时，研究了一种有效的? 亟峋?,6-二（对氨基苯）苯并1,2-d;5,4-d']二噁唑的方法。与其他方法相比， 该法原料便宜易得，产物可作为聚合反应的单体原料。

Synthesis and Purification of 2,6-Bis(p-aminophenyl)-benzo[1,2-d;5, 4-d']bisoxazole

2,6-Bis(p-aminophenyl)benzol,2-rf;5,4-of']bisoxazole was synthesized with 1,2,3-trichlorobenzene as the starting material in four steps including nitration, substitution, hydrogenation and condensation with total yield of 70% . In addition, an effective purification method for 2,6-bis(p-aminophenyl)benzol,2-d;5,4-d'] bisoxazole was established. In comparison with other methods, there are some advantages in this method: the materials are cheap and easily available, and the product can be used as a monomer in polymerization.