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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 128234Generated: October 25, 2026

Triethylamine → Ethyl N-(4-methyl-2-oxazolyl)carbamate

https://huagongshe.com/reaction/128234

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantEthyl chloroformateHCID 10928—
Reactant4-Methyloxazol-2-amineHCID 535824—
SolventDiethyl EtherHCID 3283—
ProductEthyl N-(4-methyl-2-oxazolyl)carbamateHCID 23468960—

Reaction Steps

Ethyl chloroformate (1.05 ml, 0.011 mol) was added dropwise to a stirred solution of 2-amino-4-methyloxazole (1.0 g, 0.010 mol) and triethylamine (1.5 ml, 0.011 mol) in dry ether (50 ml) at 5°-10° C. The mixture was stirred for 2 hours at 0°-5° C. then the white solid was filtered off and washed well with water to remove triethylamine hydrochloride. Residue (0.5 g) was recrystallised from chloroform-petroleum spirit, m.p. 126° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04259343
Source datasetuspto-grants-1981_03
ORD IDord-544e6feef2934304afacf190d039a507
Source noteuspto-grants-1981_03