An expeditious synthesis of 4-alkoxycarbonyl-5-hydroxy-1,2,3-triazoles: the crystal and molecular structure of the 2-thienylammonium salt of 5-hydroxy-4-methoxycarbonyl-1-(2-thienyl)-1,2,3-triazole

Abstract

Dimethyl diazomalonate undergoes reaction with primary alkyl amines to generate the corresponding primary ammonium salts of 1 -alkyl-5-hydroxy-4-methoxycarbonyl-1,2,3-triazoles; the structure of the product from the reaction of the diazoester with 2-thienylamine has been confirmed by X-ray methods.