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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 570834Generated: October 30, 2026

Water → 4-(3-Butyl-4-cyano-2-methylpyrrole-1-yl)benzoic acid ethyl ester

https://huagongshe.com/reaction/570834

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantCesium carbonateHCID 10796—
ReactantBenzoic acid, 4-fluoro-, ethyl esterHCID 67976—
ReactantHCID 59478041HCID 59478041—
SolventDimethylformamideHCID 6228—
Product4-(3-Butyl-4-cyano-2-methylpyrrole-1-yl)benzoic acid ethyl esterHCID 5947805720.6%

Reaction Conditions

Temperature70 °C

Reaction Steps

A suspension of 4-butyl-5-methyl-1H-pyrrole-3-carbonitrile (0.081 g), 4-fluoro-benzoic acid ethyl ester (0.10 g) and cesium carbonate (0.21 g) in N,N-dimethylformamide (3 mL) was stirred at 70° C. overnight. This reaction mixture was poured into water, and this mixture was extracted with ethyl acetate. This organic layer was washed with brine, dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure. The residue was purified by column chromatography on silica gel (eluent: ethyl acetate/n-hexane=1/6) to give the title compound (0.032 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09023882B2
Source datasetuspto-grants-2015_05
ORD IDord-3e1bea7c31ef45f1b3828ba6ae3d7997
Source noteuspto-grants-2015_05