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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1754972Generated: October 28, 2026

Triethylamine → HCID 66817088, compound

https://huagongshe.com/reaction/1754972

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantAmmonium ChlorideHCID 25517—
ReactantTriphosgeneHCID 94429—
ReactantHCID 28263930HCID 28263930—
SolventDichloromethaneHCID 6344—
ProductHCID 66817088HCID 66817088287.3%

Reaction Steps

Bis(trichloromethyl) carbonate (50.6 mg, 0.171 mmol) was added to a solution of 2-amino-N-(4-bromo-3-methyl-phenyl)-2-methyl-propionamide (132 mg, 0.487 mmol) and triethylamine (0.204 ml, 1.46 mmol) in dichloromethane (5.0 ml) at 0° C., and the mixture was stirred for 21 hours while gradually warming to room temperature. An aqueous ammonium chloride solution was added to the reaction mixture, followed by extraction with dichloromethane. The resulting residue was purified by silica gel column chromatography (dichloromethane-ethyl acetate) to give 3-(4-bromo-3-methyl-phenyl)-5,5-dimethyl-imidazolidine-2,4-dione (146 mg, 88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09169254B2
Source datasetuspto-grants-2015_10
ORD IDord-5e0f44def08e418a91a2b0829a800254
Source noteuspto-grants-2015_10