Reactions of 3-Arylhydrazono-2,4-dioxobutanoates with Hydrazine Hydrate
作者:T. V. Levenets、V. O. Koz’minykh
DOI:10.1134/s1070363218060075
日期:2018.6
4-Substituted 3-arylhydrazono-2,4-dioxobutanoates acids esters undergo cyclization under the action of hydrazinehydrate to form 4-arylazo-3-pyrazolecarboxylic acids derivatives. The structure of the compounds obtained was determined from spectral methods.