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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 554236Generated: October 28, 2026

Water → HCID 52987784, compound

https://huagongshe.com/reaction/554236

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantN-bromobutanimideHCID 67184—
ReactantEthyl 2-methyl-3-pyrrolecarboxylateHCID 136747—
SolventTetrahydrofuranHCID 8028—
ProductHCID 52987784HCID 5298778497.5%

Reaction Steps

To a solution of ethyl 2-methyl-1H-pyrrole-3-carboxylate (1.53 g) in tetrahydrofuran (20 mL) was added N-bromosuccinimide (1.78 g) at −78° C., and the mixture was stirred at the same temperature for 30 min. Water was added to the reaction mixture, and the mixture was extracted with diethyl ether. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure at not more than 5° C. The residue washed with hexane to give the title compound as a colorless solid (yield 2.26 g, 97%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08048909B2
Source datasetuspto-grants-2011_11
ORD IDord-f6d2786147fc4c8f982534891b8b7708
Source noteuspto-grants-2011_11