Synthesis and Some Transformations of 4-(2,5-Dihydro-2,5-dioxo-1H-pyrrrol-1-yl)benzoic and -Phenylacetic Acids Amides
作者:O. A. Kolyamshin、Yu. N. Mitrasov、V. A. Danilov、Yu. Yu. Pylchikova、A. A. Avruyskaya
DOI:10.1134/s1070363223020020
日期:2023.2
Abstract The reactions of 4-aminobenzoic and 4-aminophenylacetic acids amides with maleic anhydride yielded the corresponding maleic acid monoamides, the cyclization of which gave 4-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)benzoic and 4-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)phenylethanoic acids amides. Their reactions with secondary amines afforded the corresponding 4-(3-dialkylamino-2,5-dioxo-2,3,4,
摘要 4-氨基苯甲酸和 4-氨基苯乙酸酰胺与马来酸酐反应生成相应的马来酸单酰胺,其环化生成 4-(2,5-二氢-2,5-二氧代-1 H-吡咯-1-基)benzoic 和 4-(2,5-dihydro-2,5-dioxo-1 H -pyrrol-1-yl)phenylethanoic acids amides。它们与仲胺反应得到相应的 4-(3-dialkylamino-2,5-dioxo-2,3,4,5-tetrahydro-1 H -pyrrol-1-yl)benzoic 和 4-(3-dialkylamino-2 ,5-二氧代-2,3,4,5-四氢-1H-吡咯-1-基)苯基乙酸酰胺。