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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1931385Generated: November 2, 2026

Piperidine → 2-(6-Bromo-pyridazin-3-yloxy)-(1-piperidin-1-yl)-ethanone

https://huagongshe.com/reaction/1931385

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
ReactantO-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733286—
Reactant(6-Bromo-pyridazin-3-yloxy)-acetic acidHCID 86638120—
SolventTetrahydrofuranHCID 8028—
Product2-(6-Bromo-pyridazin-3-yloxy)-(1-piperidin-1-yl)-ethanoneHCID 86638121—

Reaction Steps

146 mg (0.626 mmol) of (6-bromo-pyridazin-3-yloxy)-acetic acid, 216.5 mg (1.88 mmol) of NEM and 226 mg (0.689 mmol) of TOTU in 10 ml of THF were stirred at room temperature for 15 min, 80 mg (0.94 mmol) of piperidine added, and the reaction mixture stirred at room temperature for 3 h. After evaporation, a sodium hydrogencarbonate solution and ethyl acetate were added to the residue, and the organic phase was separated, washed, dried and evaporated. Yield: 190 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188291B2
Source datasetuspto-grants-2012_05
ORD IDord-fa71df46bec74b05a56501899bcdbb06
Source noteuspto-grants-2012_05