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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 492248Generated: October 29, 2026

Chloroform → HCID 69057860, compound

https://huagongshe.com/reaction/492248

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroformHCID 6212—
ReactantEthyl chloroformateHCID 10928—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 69052888HCID 69052888—
SolventTriethylamineHCID 8471—
ProductHCID 69057860HCID 69057860—

Reaction Conditions

Temperature0 °C

Reaction Steps

At 0° C., ethyl chloroformate (455 μL) was added to a chloroform solution (13 mL) of N-(4-aminobenzyl)-N,N-diethylamine dihydrochloride (1.0 g) obtained in Reference Example 2-1-(2) and triethylamine (2.2 mL), and stirred at 0° C. for 1.5 hours and then at room temperature for 2 hours. Aqueous sodium hydrogencarbonate solution was added to the reaction liquid to stop the reaction, and this was extracted with chloroform. The organic layer was washed with water and saturated saline water, and then dried with anhydrous sodium sulfate. The organic layer was concentrated under reduced pressure, and the residue was purified through silica gel column chromatography (chloroform/methanol=9/1) to obtain ethyl N-{4-[(diethylamino)methyl]phenyl}carbamate (530 mg) as an orange oily substance.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07531668B2
Source datasetuspto-grants-2009_05
ORD IDord-45ede95ce4b140ddb63c78ae4a6a3b4a
Source noteuspto-grants-2009_05