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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 413896Generated: October 26, 2026

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

https://huagongshe.com/reaction/413896

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 numberUS06569890B2
Source datasetuspto-grants-2003_05
ORD IDord-eaf992b871da46a58b71d23dbf0e4ab0
Source noteuspto-grants-2003_05