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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1920953Generated: October 26, 2026

Triethylamine → 2-Isobutylimidazo[1,2-a]quinoxalin-4-amine

https://huagongshe.com/reaction/1920953

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2,3-DichloroquinoxalineHCID 16659—
Reactant2-Amino-4-methylpentan-1-olHCID 79030—
SolventEthyl AcetateHCID 8857—
Solvent1,4-DioxaneHCID 31275—
Product2-Isobutylimidazo[1,2-a]quinoxalin-4-amineHCID 1674206295.7%

Reaction Conditions

Temperature130 °C

Reaction Steps

To a solution of 2,3-dichloroquinoxaline (2.0 g, 10.0 mmol) in 10 mL of 1,4-dioxane was added triethyl amine (1.81 g, 18 mmol) and followed by 2-amino-4-methylpentan-1-ol (1.4 g, 12 mmol). The reaction mixture was separated into 2 microwave tubes. And then the mixture was stirred in microwave for 10 minutes at 130° C. The combined reaction mixture was diluted with 150 mL of ethyl acetate and then was washed with water (20 mL), brine (20 mL), dried over MgSO4, filtered and concentrated. The crude product was purified by flash column chromatography eluted with ethyl acetate and hexanes to give the titled compound (2.3 g, 69%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08173657B2
Source datasetuspto-grants-2012_05
ORD IDord-8b826dda3e9c45dea92745717b62ccf6
Source noteuspto-grants-2012_05