In this paper, it had been discussed to improve on the industrial process for synthesis of 2,3,5 -trimethylpyrazine by using 2,3 - butane - dione and 1,2-propanediamine.

• 本文讨论以丁二酮、1,2-丙二胺为原料,合成2,3,5-三甲基吡嗪生产工艺条件的改进,重点讨论溶剂、萃取剂的改变对其产率的影响。