摘要
介绍了以二氨基马来腈和乙二醛为原料,经环化合成2,3-二氰基吡嗪,再经水解生成吡嗪-2,3-二羧酸的反应过程,全程反应条件温和,产品总收率高于65%。
The text is concerned with a process for the preparation of Pyrazine 2,3-dicarboxylic acid.First,the intermediate,namely 2,3-Dicyanopyrazine,has been prepared by the Diaminomaleonitrile and glyoxal as raw materials.Further,the intermediate is hydrolyzed by Hydrochloric acid to form pyrazine-2,3-dicarboxylic acid of the reaction process.the product total yield is higher than 65% of the total.
出处
《四川化工》
CAS
2011年第4期18-20,共3页
Sichuan Chemical Industry
