METHYLATION OF 4-NIТRO-1,2,3-TRIAZOLE IN NEUTRAL ENVIRONMENTS

G.Т. Sukhanov, Yu.V. Filippova, I.А. Krupnova, K.K. Bosov, А.G. Sukhanova, Е.V. Pivovarova
DOI: 10.25699/SSSB.2021.40.6.006 Download PDF
Abstract: Alkylation of the NH-heterocycle of 4-nitro-1,2,3-triazole with dimethyl sulfate is accompanied by tandem alkylationquaternization reactions and leads to the formation of a complex mixture of N-monoalkylation products at all three heteroatoms N-1, N-2, and N-3 with a significant predominance previously unknown N3-derivative, as well as the product of their further conversion - 1,3-dimethyl-4-nitro-1,2,3-triazolium salts.
Index terms: 4-nitro-1,2,3-triazole, alkylation, regioselectivity, N-methylnitrotriazoles.

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