Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 842184Generated: October 25, 2026

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

https://huagongshe.com/reaction/842184

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-AminobenzamideHCID 1645—
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantEthyl 2-acetyl-4-oxo-4-phenylbutanoateHCID 312893—
SolventEthanolHCID 702—
Product1-(3-Carbamoylphenyl)-2-methyl-5-phenyl-1H-pyrrole-3-carboxylic acid ethyl esterHCID 9946286—

Reaction Steps

3-Aminobenzamide (5 mmol, 1.0 g), 3-oxo-2-(2-oxo-2-phenyl-ethyl)-butyric 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 mixture, then washed with ethanol. The white solid product was used without further purification (m.p. 237.8° C.-238.8° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06372777B1
Source datasetuspto-grants-2002_04
ORD IDord-73c5fb46af684ac0bc7b85342b24b8d8
Source noteuspto-grants-2002_04