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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 518820Generated: October 31, 2026

Diisopropylethylamine → 2-{1-Methyl-4-[4-nitro-3-(propan-2-yloxy)phenyl]piperazin-2-yl}ethanol

https://huagongshe.com/reaction/518820

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant2-(1-Methylpiperazin-2-yl)ethanolHCID 6484682—
Reactant4-Fluoro-1-nitro-2-(propan-2-yloxy)benzeneHCID 10631832—
SolventAcetonitrileHCID 6342—
Product2-{1-Methyl-4-[4-nitro-3-(propan-2-yloxy)phenyl]piperazin-2-yl}ethanolHCID 8669798670.8%

Reaction Conditions

Temperature110 °C

Reaction Steps

974 mg of N,N-diisopropylethylamine and 724 mg of 2-(1-methylpiperazin-2-yl)ethanol are added to a suspension of 1 g of 4-fluoro-1-nitro-2-(propan-2-yloxy)benzene in 10 ml of acetonitrile. The reaction medium is microwave-heated at 110° C. for 6 hours and then concentrated to dryness under reduced pressure. Purification is carried out by flash chromatography on silica gel (40-63 microns), elution being carried out with a mixture of dichloromethane and methanol (100/0) to (90/10). 1.15 g of 2-{1-methyl-4-[4-nitro-3-(propan-2-yloxy)phenyl]piperazin-2-yl}ethanol are obtained in the form of a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09115140B2
Source datasetuspto-grants-2015_08
ORD IDord-86a6b3c2caf745d2ae32a239921986fc
Source noteuspto-grants-2015_08