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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 716876Generated: October 25, 2026

1-Methylpiperazine → HCID 67041699, compound

https://huagongshe.com/reaction/716876

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
ReactantMethyl 3-bromo-2-phenylquinoxaline-6-carboxylateHCID 86667202—
SolventDimethyl SulfoxideHCID 679—
SolventWater methylene chlorideHCID 21908982—
ProductHCID 67041699HCID 67041699—

Reaction Steps

Methyl 3-bromo-2-phenylquinoxaline-6-carboxylate (150 mg, 0.44 mmol, 1.00 equiv) in DMSO (8 mL) and 1-methylpiperazine (90 mg, 0.90 mmol, 2.00 equiv) were stirred for 2 hours at 125° C. in an oil bath in a 20-mL sealed tube. The resulting solution was diluted with 20 ml of DCM/H2O (1:1), extracted with 4×40 mL of DCM, and the organic layers combined. The mixture was dried over Na2SO4, filtered to remove solids, and then concentrated under vacuum, resulting in 200 mg (crude) of methyl 3-(4-methylpiperazin-1-yl)-2-phenylquinoxaline-6-carboxylate as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09193693B2
Source datasetuspto-grants-2015_11
ORD IDord-6f6d4916200e4d35b66d39aa15abd27b
Source noteuspto-grants-2015_11