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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 638616Generated: November 1, 2026

Imidazole → HCID 53725360, compound

https://huagongshe.com/reaction/638616

Reaction equation

Participants

RoleNameHCIDCharge
ReactantImidazoleHCID 795—
Reactant18-Crown-6HCID 28557—
ReactantPotassium tert-butoxideHCID 23665647—
ReactantHCID 54409993HCID 54409993—
SolventWaterHCID 962—
SolventDiethyl EtherHCID 3283—
ProductHCID 53725360HCID 53725360—

Reaction Steps

A mixture of imidazole (0.25 g, 3.67 mmol), potassium tert-butoxide (0.42 g, 3.75 mmol), ethyl 3-(3-bromo-4-bromomethylphenyl)prop-2-enoate (1.29 g, 3.7 mmol) and 18-crown-6 (0.1 g) in dry ether was stirred at room temperature for 72 h. Water (5 ml) was then added, and the aqueous layer was extracted with ether (3×50 ml). The ether solutions were combined, dried (MgSO4) and then concentrated to afford a pale yellow oil. The oil was `flash` chromatographed using chloroform/methanol 9:1 as eluant. The product fractions were combined, dried (MgSO4) and concentrated to afford ethyl 3-[3-bromo-4-(imidazol-1-ylmethyl)phenyl]prop-2-enoate as a white solid. NMR data was consistent with the assigned structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04562199
Source datasetuspto-grants-1985_12
ORD IDord-4560867ade6d4a85a084fa7d0bb9d84b
Source noteuspto-grants-1985_12