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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1822747Generated: November 1, 2026

Diethyl Oxalate → HCID 54422680, compound

https://huagongshe.com/reaction/1822747

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl OxalateHCID 7268—
Reactant4-(2,2,2-Trimethylacetamido)pyridineHCID 427059—
ReactantButyllithiumHCID 178418339—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
ProductHCID 54422680HCID 54422680—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 10 g of 4-trimethylacetamido pyridine in 150 mL of dry tetrahydrofuran is cooled to −78° C. and 88 mL of 1.6M n-butyllithium in hexane is added in a dropwise fashion. The mixture is then stirred at 0° C. for 3 hours, cooled again to −78° C. and 21.3 g of diethyl oxalate dissolved in 190 mL of tetrahydrofuran is added in a dropwise fashion, the reaction mixture was then gradually allowed to come to room temperature. The reaction mixture is diluted with water and the product is extracted with ether. After drying over magnesium sulfate the solvent is removed in vacuo. The residue is chromatagraphed on silica gel with hexane/ether 2:1 as the eluent to afford ethyl 4-trimethylacetamido-3-pyridylpyruvate as an orange oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07037922B1
Source datasetuspto-grants-2006_05
ORD IDord-274bdd478d8c446e865140b30425732d
Source noteuspto-grants-2006_05