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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1405504Generated: October 31, 2026

Diethylamine → HCID 67041743, compound

https://huagongshe.com/reaction/1405504

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylamineHCID 8021—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethyl 3-bromo-2-phenylquinoxaline-6-carboxylateHCID 86667202—
SolventDimethylformamideHCID 6228—
ProductHCID 67041743HCID 67041743—

Reaction Conditions

Temperature100 °C

Reaction Steps

Into a 8-mL sealed tube, was placed a solution of methyl 3-bromo-2-phenylquinoxaline-6-carboxylate (150 mg, 0.44 mmol, 1.00 equiv) in N,N-dimethylformamide (3 mL), diethylamine (63.4 mg, 0.87 mmol, 2.00 equiv), and DIEA (170.3 mg, 1.32 mmol, 3.00 equiv). The resulting solution was stirred overnight at 100° C. in an oil bath. The resulting solution was concentrated under vacuum. The residue was applied onto a silica gel column and eluted with ethyl acetate/petroleum ether (1:100). This resulted in 117 mg (80%) of methyl 3-(diethylamino)-2-phenylquinoxaline-6-carboxylate as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916560B2
Source datasetuspto-grants-2014_12
ORD IDord-38751ac51f434d52b5c21eba958974b7
Source noteuspto-grants-2014_12