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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | Benzoic acid, 4-fluoro-, ethyl ester | HCID 67976 | — |
| Reactant | HCID 59478041 | HCID 59478041 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 4-(3-Butyl-4-cyano-2-methylpyrrole-1-yl)benzoic acid ethyl ester | HCID 59478057 | 20.6% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09023882B2 |
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| Source dataset | uspto-grants-2015_05 |
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| ORD ID | ord-3e1bea7c31ef45f1b3828ba6ae3d7997 |
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| Source note | uspto-grants-2015_05 |
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