Synthesis of 2-(2-methyltetrazol-5-yl)-2,2-dinitroacetonitrile. Reaction of the nitrile group with diazomethane
The reaction of the silver salt of (2-methyltetrazol-5-yl)dinitromethane with cyanogen bromide led to the formation of 2-(2-methyltetrazol-5-yl)-2,2-dinitroacetonitrile. The nitrile group of the latter was capable of entering into 1,3-dipolar cycloaddition with diazomethane, giving a mixture of isomeric 2-methyl-5-[(_N_-methyl-1,2,3-triazol-4-yl)dinitromethyl]tetrazoles that were separated by column chromatography. Upon treatment with an alcohol solution of potassium hydroxide, denitration of the cycloaddition products occurred and ... إقراء المزيد