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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1107695Generated: October 25, 2026

Formamide → Ethyl 4-methyloxazole-5-carboxylate

https://huagongshe.com/reaction/1107695

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
ReactantPotassium CarbonateHCID 11430—
ReactantEthyl 2-chloroacetoacetateHCID 11858—
ProductEthyl 4-methyloxazole-5-carboxylateHCID 8855839.8%

Reaction Conditions

Temperature120 °C

Reaction Steps

To ethyl-2-chloroacetoacetate(5.6 g) was added formamide(4.6 g). The reaction mixture was stirred at 120° C. for 12 hours, cooled to 0° C. and aqueous potassium carbonate was added thereto. The mixture was extracted with benzene, dried with anhydrous magnesium sulfate, and concentrated in vacuo to obtain the target product(2.1 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06063778
Source datasetuspto-grants-2000_05
ORD IDord-5df6a61042a447b080cb08964bf943f0
Source noteuspto-grants-2000_05