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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2065512Generated: November 1, 2026

Hydantoin → HCID 59299230, compound

https://huagongshe.com/reaction/2065512

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydantoinHCID 10006—
ReactantPotassium HydroxideHCID 14797—
Reactant3-Bromobenzyl bromideHCID 69979—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
ProductHCID 59299230HCID 5929923063.4%

Reaction Steps

Hydantoin (300 mg, 3.0 mmol) was added to a solution of KOH (202 mg, 3.6 mmol) in 90% EtOH at r.t., and the reaction stirred for 30 min. 3-Bromobenzyl bromide (750 mg, 3.0 mmol) was added, and the reaction was heated at reflux for 18 h. The solution was diluted with EtOAc, washed with H2O and brine, dried (MgSO4) and concentrated in vacuo. Precipitation from 50% EtOAc/hexanes followed by collection by filtration gave 512 mg (63%) of the title compound as a white solid. 1H NMR (400 MHz, CDCl3) δ 7.54 (s, 1H), 7.42 (d, J=7.6 Hz, 1H), 7.34 (d, J=7.6 Hz, 1H), 7.19 (t, J=7.6 Hz, 1H), 5.81 (s, 1H), 4.63 (s, 2H), 4.00 (s, 2H). [M+H] calc'd for C10H9BrN2O2, 269, 271; found, 269, 271.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08288536B2
Source datasetuspto-grants-2012_10
ORD IDord-253d29e4da4141fc93fe156f8962c426
Source noteuspto-grants-2012_10