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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 716866Generated: October 26, 2026

Diisopropylethylamine → HCID 67041935, compound

https://huagongshe.com/reaction/716866

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 numberUS09193693B2
Source datasetuspto-grants-2015_11
ORD IDord-4ab617af721e46fa89e43a28fc034f5e
Source noteuspto-grants-2015_11