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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 981168Generated: October 31, 2026

1-Methylpiperazine → HCID 10091734, compound

https://huagongshe.com/reaction/981168

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
ReactantHCID 11726606HCID 11726606—
SolventIsopropanolHCID 3776—
ProductHCID 10091734HCID 1009173450.7%

Reaction Steps

A mixture of 3-bromomethyl-4-(3-nitrophenyl)-6-phenylpyridazine (0.6 g), 1-methylpiperazine (0.36 g) in isopropyl alcohol (6 ml) was refluxed for 30 minutes. After evaporating the solvent, the residue was dissolved in methylene chloride (50 ml), washed with saturated aqueous sodium chloride and dried over magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was subjected to a column chromatography on silica gel (50 g) and eluted with a mixture of chloroform and methanol (20:1 V/V). The fractions containing the desired compound were combined and concentrated under reduced pressure. The residue was recrystallized from ethanol to give 3-(4-methylpiperazin-1-ylmethyl)-4-(3-nitrophenyl)-6-phenylpyridazine (0.32 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04990507
Source datasetuspto-grants-1991_02
ORD IDord-0c1760708e5c42798de49456d6296677
Source noteuspto-grants-1991_02