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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 417871Generated: October 29, 2026

1-Phenylpiperazine → HCID 86608225, compound

https://huagongshe.com/reaction/417871

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 numberUS08093229B2
Source datasetuspto-grants-2012_01
ORD IDord-35f5e9f3fab54d3390b003830431ac85
Source noteuspto-grants-2012_01