Synthesis of Derivatives of Pyrazolin-1H-3-ones from 2′-N-Substituted Monohydrazides of Cyclohexenedicarboxylic Acids |
| |
Authors: | D. Zicane I. Ravina Z. Tetere M. Petrova |
| |
Affiliation: | (1) Riga Technical University, Riga, LV-1048, Latvia |
| |
Abstract: | 2-(6-Aryl-4-methylcyclohex-3-enecarbonyl)-4-ethoxycarbonylpyrazolin-1H-3-ones have been synthesized from 2′-N-(2,2-diethoxycarbonylvinyl)monohydrazides of 6-aryl-4-methylcyclohex-3-ene-1,1-dicarboxylic acids by boiling in DMF, pyridine, or toluene in the presence of potassium carbonate. Under analogous conditions, but without potassium carbonate, 2′-N-substituted hydrazides of cyclohexenecarboxylic acids are obtained. __________ Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 1007–1011, July, 2005. |
| |
Keywords: | hydrazide ethoxymethylenemalonic acid diethyl ester pyrazoline pyrazolin-5-one cyclohexenecarboxylic acid |
本文献已被 SpringerLink 等数据库收录! |
|