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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2280281Generated: October 30, 2026

Water → HCID 58305685, compound

https://huagongshe.com/reaction/2280281

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantN-bromobutanimideHCID 67184—
ReactantHCID 58305666HCID 58305666—
SolventDimethylformamideHCID 6228—
ProductHCID 58305685HCID 58305685—

Reaction Steps

NBS (4.76 g, 1 equiv) was added portionwise to a solution of ethyl 3-(1-(4-cyano-2-methylphenyl)-1H-pyrrol-2-yl)propanoate in DMF at 0° C. during 45 min. After addition, the mixture was stirred at room temperature for 30 min, then poured into water, and extracted with ethyl acetate for three times. The combined organic layers were washed with brine, dried over Na2SO4, concentrated and purified by silica gel column chromatography (PE:EA=15:1) to afford ethyl 3-(5-bromo-1-(4-cyano-2-methylphenyl)-1H-pyrrol-2-yl)propanoate as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09138427B2
Source datasetuspto-grants-2015_09
ORD IDord-780f790eaf6448a7b587405e4d97a420
Source noteuspto-grants-2015_09