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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1403480Generated: October 31, 2026

Potassium Phosphate, Tribasic → HCID 70665079, compound

https://huagongshe.com/reaction/1403480

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium Phosphate, TribasicHCID 62657—
ReactantHCID 70657354HCID 70657354—
ReactantMethyl 2-chloro-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylateHCID 86667203—
CatalystWaterHCID 962—
CatalystHCID 178418397HCID 178418397—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 70665079HCID 7066507973%

Reaction Conditions

Temperature95 °C

Reaction Steps

To a solution of methyl 2-chloro-3-[methyl(propan-2-yl)amino]quinoxaline-6-carboxylate (140 mg, 0.48 mmol) in dioxane (5.0 mL) and water (3 drops) was added 4,4,5,5-tetramethyl-2-(3-phenylfuran-2-yl)-1,3,2-dioxaborolane (270 mg, 1.00 mmol), K3PO4 (211 mg, 0.99 mmol) and Pd(PPh3)4 (28 mg, 0.02 mmol) with stirring for 1 h at 95° C. in an oil bath maintained under an inert atmosphere of nitrogen. The reaction mixture was concentrated under vacuum to give a residue, which was purified by silica gel chromatography (2% ethyl acetate in petroleum ether) to afford methyl 3-[methyl(propan-2-yl)amino]-2-(3-phenylfuran-2-yl)quinoxaline-6-carboxylate as a light yellow solid (140.0 mg, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08912188B2
Source datasetuspto-grants-2014_12
ORD IDord-3f85230bd1cc463999b235486dd53da8
Source noteuspto-grants-2014_12