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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 417870Generated: October 30, 2026

Diisopropylethylamine → HCID 61688035, compound

https://huagongshe.com/reaction/417870

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant1-(2-Pyrimidinyl)piperazineHCID 88747—
Reactant3-Butynyl p-toluenesulfonateHCID 272020—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 61688035HCID 6168803554.6%

Reaction Steps

A solution of but-3-ynyl 4-methylbenzenesulfonate (1.14 g), 2-(piperazin-1-yl)pyrimidine (1.06 g) and diisoproylethylamine (1.24 mL) in 1,2-dichloroethane (6 mL) was heated to reflux overnight. The mixture was concentrated, diluted with sat. aq. NaHCO3 (5 mL) and extracted with DCM (2×50 mL). Drying (Na2SO4) and silica gel flash chromatography (EtOAc/hexane 1:1→1:0) afforded 2-(4-(but-3-ynyl)piperazin-1-yl)pyrimidine (0.60 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093229B2
Source datasetuspto-grants-2012_01
ORD IDord-ed4bed43bf73479bb7a06917e6dcc1db
Source noteuspto-grants-2012_01