Synthesis of derivatives of 1, 2, 4-triazole-3, 5-dicarboxylic acid |
| |
Authors: | T N Vereshchagina V A Lopyrev M S Pevzner L M Kogan |
| |
Institution: | (1) North-Western Extra-Mural Polytechnic Institute, Leningrad;(2) Lensovet Leningrad Technological Institute, USSR |
| |
Abstract: | By oxidation of 3,5-dimethyl-1,2,4-triazole the monopotassium salt of 1,2,4-triazole-3,5-dicarboxylic acid was obtained. The mononitryl of 1,2,4-triazole-3,5-dicarboxylic acid was isolated during the reaction between 3-diazo-1,2,4-triazole-5-carboxylic acid and potassium cyanide in the presence of copper cyanide. Acid hydrolysis of 3-cyano-1,2,4-triazole-5-carboxylic acid leads to the formation of 3-carbamido-5-carboxy-1,2,4-trlazole, which on esterification with methanol gives rise to 3-carbamido-5-carbomethoxy-1,2,4-triazole. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|