Citation: Fang Li Jing, Wei Chu, Yuan Yuan Zhang, Ye Qiang Chen, Shi Zhong Luo. Synthesis of 2-methylpyrazine from cyclocondensation of ethylene diamine and propylene glycol over promoted copper catalyst[J]. Chinese Chemical Letters, ;2008, 19(6): 752-755. doi: 10.1016/j.cclet.2008.04.007 shu

Synthesis of 2-methylpyrazine from cyclocondensation of ethylene diamine and propylene glycol over promoted copper catalyst

a Department of Chemical Engineering, Sichuan University, Chengdu 610065, China;
b College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China

Received Date: 15 November 2007

The 2-methylpyrazine was synthesized by catalytic reaction of ethylene diamine and propylene glycol at 380℃. The alumina supported copper catalysts with promoter were prepared by impregnation method, characterized by ICP-AES, BET and TPR. The results demonstrated that the dehydrogenation was improved by addition of chromium promoter. The selectivity of 2-methylpyrazine reached 84.75%, while the conversions of reactants were also enhanced.
- 2-Methylpyrazine,
- Copper catalyst,
- Dehydrogenation,
- Ethylene diamine,
- Propylene glycol,
- Promoter
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