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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1984097Generated: October 31, 2026

1-Phenylpiperazine → HCID 86608225, compound

https://huagongshe.com/reaction/1984097

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-PhenylpiperazineHCID 7096—
ReactantDiisopropylethylamineHCID 81531—
ReactantPent-4-yn-1-yl methanesulfonateHCID 12476209—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86608225HCID 8660822571.7%

Reaction Steps

A solution of pent-4-ynyl methanesulfonate (1.05 g), N-phenyl piperazine (1.02 g) and diisoproylethylamine (1.2 mL) in THF (5 mL) was heated to reflux overnight. The mixture was concentrated, diluted with aq. NaOH 2M (10 mL) and extracted with DCM (2×50 mL). Drying (Na2SO4) and silica gel flash chromatography (EtOAc/hexane 2:1→2:0) afforded 1-(pent-4-ynyl)-4-phenylpiperazine (1.03 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07544672B2
Source datasetuspto-grants-2009_06
ORD IDord-e1a379681e7f440d9ed27345ca9beea9
Source noteuspto-grants-2009_06