Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1405428Generated: October 31, 2026

Diisopropylethylamine → HCID 67041935, compound

https://huagongshe.com/reaction/1405428

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant1-(4-(Trifluoromethyl)phenyl)piperazineHCID 121718—
ReactantMethyl 3-bromo-2-phenylquinoxaline-6-carboxylateHCID 86667202—
SolventDimethylformamideHCID 6228—
ProductHCID 67041935HCID 67041935—

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of methyl 3-bromo-2-phenylquinoxaline-6-carboxylate (150 mg, 0.44 mmol, 1.00 equiv) in DMF (8 mL), 1-(4-(trifluoromethyl)phenyl)piperazine (202 mg, 0.88 mmol, 2.00 equiv), DIEA (170.3 mg, 1.32 mmol, 3.00 equiv) were placed in a 20-mL sealed tube and stirred overnight at 100° C. in an oil bath. The reaction was then quenched by the addition of water. The resulting solution was extracted with 4×50 mL of ethyl acetate and the organic layers combined and dried over anhydrous sodium sulfate followed by filtration to remove solids. The resulting mixture was concentrated under vacuum, resulting in 177.4 mg (78%) of methyl 2-phenyl-3-(4-(4-(trifluoromethyl)phenyl)piperazin-1-yl)quinoxaline-6-carboxylate as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916560B2
Source datasetuspto-grants-2014_12
ORD IDord-4631249b28ad4f01bf5f5d01e1eaa828
Source noteuspto-grants-2014_12