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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1453812Generated: October 31, 2026

Sodium hydride → HCID 69036645, compound

https://huagongshe.com/reaction/1453812

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantMethyl bromoacetateHCID 60984—
ReactantBenzyl isocyanateHCID 76639—
Reactant4-TrifluoromethylnicotinamideHCID 2782643—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 69036645HCID 69036645—

Reaction Steps

Sodium hydride (0.090 g, 60% dispersion in mineral oil) was added to a solution of 4-trifluoromethyl-3-pyridinecarboxamide (0.40 g) in N,N-dimethylformamide at 20° C., and stirred for 1 hour. Benzyl isocyanate (0.31 ml) was added and the mixture stirred at 20° C. for 2 hours, then methyl bromoacetate (0.30 ml) added and stirring continued for 5 hours. Ethyl acetate and water were added to the solution and the organic phase dried (magnesium sulfate), evaporated and the residue purified by column chromatography on silica gel, eluting with n-hexane/ethyl acetate (2:1), to give 3-benzyl-1-(4-trifluoromethyl-3-pyridylcarbonyl)hydantoin (0.50 g, Compound S-132).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07476685B2
Source datasetuspto-grants-2009_01
ORD IDord-107e391d15284a03b3c6de9f1c2bb296
Source noteuspto-grants-2009_01