Oxamide, the diamide of oxalic acid, is an extremely stable white crystalline solid. It can be heated to >300 °C before decomposing. It is produced by the oxidation of HCN to (CN)2, followed by hydrolysis. Its chief uses are as a nitrogen fertilizer and as a stabilizer for nitrocellulose products. P. J. Chirik and D. J. Knobloch recently used an elegant hafnium complex to convert N2 and CO to oxamide.
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