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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1403595Generated: October 30, 2026

2-Methylpiperidine → HCID 70665236, compound

https://huagongshe.com/reaction/1403595

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-MethylpiperidineHCID 7974—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethyl 3-chloro-2-oxo-1,2-dihydroquinoxaline-6-carboxylateHCID 68194304—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 70665236HCID 7066523669%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of methyl 3-chloro-2-oxo-1,2-dihydroquinoxaline-6-carboxylate (600 mg, 2.51 mmol) in DMSO (10 ml) was added 2-methylpiperidine (500 mg, 5.04 mmol) and DIEA (650 mg, 5.03 mmol). The resulting solution was stirred at 80° C. for 2 hours and then quenched by water (50 ml). The solids were collected by filtration to afford methyl 3-(2-methylpiperidin-1-yl)-2-oxo-1,2-dihydroquinoxaline-6-carboxylate as a light yellow solid (520 mg, 69%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08912188B2
Source datasetuspto-grants-2014_12
ORD IDord-ed8ecba4686c4f2cb4bd3d743afa5bdd
Source noteuspto-grants-2014_12