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JOURNALS // Mendeleev Communications // Archive

Mendeleev Commun., 2022 Volume 32, Issue 2, Pages 215–217 (Mi mendc617)

This article is cited in 1 paper

Communications

Acidic N-dealkylation in nitrotriazolium salts

G. T. Sukhanova, Yu. V. Filippovaa, Yu. V. Gatilovb, A. G. Sukhanovaa, K. K. Bosova, I. A. Krupnovaa, E. V. Pivovarovaa

a Institute for Problems of Chemical & Energetic Technologies, Siberian Branch of the Russian Academy of Sciences, Biysk, Russian Federation
b N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation

Abstract: New selective synthesis of 1-alkyl-5-nitro-1,2,3-triazoles and 1-alkyl-4-nitro-1,2,3-triazoles has been developed, involving acid N-dealkylation of the relative 4-nitro-1,2,3- and 3-nitro- 5-R-1,2,4-triazolium salts. The assortment of novel 1-alkyl- 4(5)-nitro-1,2,3-triazoles has been thus essentially expanded. Treatment of relative 3-nitro-1,2,4-triazolium salts with HCl or HBr proceeds mostly as SNipso-substitution of the nitro group.

Keywords: 1,2,3-triazolium salts, 1,2,4-triazolium salts, nitrotriazoles, alkyltriazoles, dealkylation, SNipso-substitution, regioselectivity.

Language: English

DOI: 10.1016/j.mencom.2022.03.020



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