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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1405296Generated: October 31, 2026

Potassium Phosphate, Tribasic → HCID 70654250, compound

https://huagongshe.com/reaction/1405296

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant4-Aminocarbonylphenylboronic acidHCID 2737811—
ReactantMethyl 2-chloro-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylateHCID 86667203—
CatalystWaterHCID 962—
CatalystHCID 178418397HCID 178418397—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 70654250HCID 7065425066%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a solution of methyl 2-chloro-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylate (120 mg, 0.49 mmol) in dioxane (5 mL) was added 4-carbamoylphenylboronic acid (169 mg, 1.02 mmol), K3PO4 (217 mg, 1.02 mmol), Pd(PPh3)4 (30 mg, 0.03 mmol) and water (5 drops). The resulting solution was stirred for 1 hour at 90° C. and then concentrated in vacuo to give a residue, which was purified via silica gel column chromatography (9% ethyl acetate in petroleum ether) to afford methyl 2-(4-carbamoylphenyl)-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylate as a yellow solid (103 mg, 66%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916561B2
Source datasetuspto-grants-2014_12
ORD IDord-250bddab502643df83a95734dad874b4
Source noteuspto-grants-2014_12