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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 224526Generated: October 30, 2026

Triethylamine → HCID 53771859, compound

https://huagongshe.com/reaction/224526

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantPhenyl chloroformateHCID 15891—
ReactantHCID 609321HCID 609321—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 53771859HCID 5377185988%

Reaction Steps

20.5 g (0.1 mol) of 4,5-dichloro-2-trifluoromethylimidazole were dissolved in 150 ml of dioxane. 10.1 g (0.1 mol) of triethylamine were added thereto and 16.05 g (0.1 mol) of chloroformic acid phenyl ester were then added dropwise whilst cooling at 10°-15° C. The mixture was stirred for a further 2 hours at room temperature, the triethylamine hydrochloride which had separated out was filtered off and the filtrate was evaporated in vacuo. The oily residue was distilled. The main fraction boiled at 106.5°-107° C./0.08 mm Hg. 28.6 g (88% of theory) of 4,5-dichloro-2-trifluoromethyl-imidazole-1-carboxylic acid phenyl ester were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04233058
Source datasetuspto-grants-1980_11
ORD IDord-b28fc05b5cbd4445914ab35ce1126491
Source noteuspto-grants-1980_11