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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 842185Generated: November 1, 2026

3-Aminobenzamide → 1-(3-Carbamoylphenyl)-5-methyl-2-phenyl-1H-pyrrole-3-carboxylic acid ethyl ester

https://huagongshe.com/reaction/842185

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-AminobenzamideHCID 1645—
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantEthyl 2-benzoyl-4-oxopentanoateHCID 14689358—
SolventEthanolHCID 702—
Product1-(3-Carbamoylphenyl)-5-methyl-2-phenyl-1H-pyrrole-3-carboxylic acid ethyl esterHCID 10154770—

Reaction Steps

3-Aminobenzamide (5 mmol, 1.0 g), 2-benzoyl-4-oxo-pentanoic acid ethyl ester (5 mmol, 1.2 g), and tosic acid (0.1 g) were combined in ethanol, then heated under reflux. The resulting precipitate was filtered from the reaction mixture, then washed with ethanol. The tan solid product was used without further purification (m.p. 208.9° C.-210.3° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06372777B1
Source datasetuspto-grants-2002_04
ORD IDord-128ab2649d374282ae27d8057fe7527b
Source noteuspto-grants-2002_04