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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 543896Generated: October 27, 2026

Water → 1,3-Dihydro-4-(1-oxobutyl)-2H-imidazol-2-one

https://huagongshe.com/reaction/543896

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantButyryl chlorideHCID 8855—
Reactant2-HydroxyimidazoleHCID 22208—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventDichloromethaneHCID 6344—
Product1,3-Dihydro-4-(1-oxobutyl)-2H-imidazol-2-oneHCID 13072006—

Reaction Steps

In 10 ml of dichloromethane is placed 1.0 g of 1,3-dihydro-2H-imidazol-2-one, 1.28 g of butyryl chloride and 4.8 g of aluminum chloride. The mixture is refluxed and stirred for 2 hours after which it is poured into water. The precipitate is collected, washed with water, and recrystallized from ethanol:water, to give the title compound, m.p. 268°-270° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04447619
Source datasetuspto-grants-1984_05
ORD IDord-ef1ad9dcadcf41d4a6e4eea0dd558b64
Source noteuspto-grants-1984_05