Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 870722Generated: October 30, 2026

Potassium Carbonate → (3-Cyclopent-1-enyl-imidazo[1,2-b]pyridazin-6-yl)-[2-(2-ethoxy-phenyl)-ethyl]-amine

https://huagongshe.com/reaction/870722

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2-(Cyclopent-1-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneHCID 15486611—
Reactant(3-Bromo-imidazo[1,2-b]pyridazin-6-yl)-[2-(2-ethoxy-phenyl)-ethyl]-amineHCID 86696426—
CatalystHCID 178418476HCID 178418476—
SolventAcetonitrile--water (1/1)HCID 18373917—
Product(3-Cyclopent-1-enyl-imidazo[1,2-b]pyridazin-6-yl)-[2-(2-ethoxy-phenyl)-ethyl]-amineHCID 8669642768.9%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of (3-bromo-imidazo[1,2-b]pyridazin-6-yl)-[2-(2-ethoxy-phenyl)-ethyl]-amine (90 mg, 0.25 mmol), 2-cyclopent-1-enyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane (97 mg, 0.5 mmol), K2CO3 (104 mg, 0.75 mmol) and dichlorobis(triphenylphosphine)palladium(II) (8.8 mg, 0.013 mmol) in MeCN/water (2.8 ml/0.7 ml) was heated in a microwave at 150° C. for 15 min. The water layer was removed and the organic layer was concentrated. The residue was subjected to ISCO. The product was further purified by preparative to give the titled compound (60 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08969565B2
Source datasetuspto-grants-2015_03
ORD IDord-43d1c7a61666407986cd97d54bbe0031
Source noteuspto-grants-2015_03