Yaroslavl, Yaroslavl, Russian Federation
Yaroslavl, Yaroslavl, Russian Federation
UDK 547-327 Амиды. Имиды. Амидины. Гидроксамовые кислоты. Другие замещения азотом в карбоксильной группе
The paper identified the structure of synthesised maleic acid monoamide by physical methods of analysis. The authors have determined the solubility of maleic acid monoamide in organic solvents with different properties and dielectric constant values. The paper describes the solvent ratio allowing the analysis with the best metrological properties. The reaction between p-toluidine and maleic anhydride to form (2z)-4-(methylanilino)-4-oxobut-2-enoic acid proceeds with high yield; mass fraction of the main substance is 94.23±0.69 %.
p-toluidine, maleic anhydride, (2z)-4-(methylanilino)-4-oxobut-2-enoic acid, IR and NMR1H- spectroscopy, potentiometric titration, metrological characteristics
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