期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 72, 期 16, 页码 6309-6311出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo0707131
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[GRAPHICS] A novel multi-component synthesis of highly substituted 1,6-dihydropyrazine-2,3-dicarbonitrile derivatives starting from simple and readily available inputs is described. Thus, simply stirring an ethanol solution of 2,3-diaminomaleonitrile, a ketone, and an isocyanide in the presence of a catalytic amount of p-toluenesulfonic acid provided highly substituted 1,6-dihydropyrazine-2,3-dicarbonitrile derivatives in good to excellent yields at ambient temperature.
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