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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1483827Generated: October 31, 2026

Hydrochloric Acid → 4-((3-(3-Chlorophenyl)imidazo[1,2-b]pyridazin-6-yl)amino)cyclohexanone

https://huagongshe.com/reaction/1483827

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
ReactantSodium BicarbonateHCID 516892—
Reactant3-(3-chlorophenyl)-N-(1,4-dioxaspiro[4.5]decan-8-yl)imidazo[1,2-b]pyridazin-6-amineHCID 71227794—
SolventTetrahydrofuranHCID 8028—
Product4-((3-(3-Chlorophenyl)imidazo[1,2-b]pyridazin-6-yl)amino)cyclohexanoneHCID 71227728102%

Reaction Steps

To a solution of 3-(3-chlorophenyl)-N-(1,4-dioxaspiro[4.5]decan-8-yl)imidazo[1,2-b]pyridazin-6-amine (210 mg, 0.55 mmol) in THF (3 mL) was added 3 N HCl (3 mL). The resulting mixture was stirred at room temperature for 2 h. TLC (EtOAc) showed the reaction was complete. The mixture was poured into sat. NaHCO3 (aq) and extracted with EtOAc (100 mL×3). The organic layers were dried over Na2SO4, filtered and concentrated in vacuo to give 4-((3-(3-chlorophenyl)imidazo[1,2-b]pyridazin-6-yl)amino)cyclohexanone (190 mg, 102%) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09416132B2
Source datasetuspto-grants-2016_08
ORD IDord-daf120ef69974ded867c70d6bb9bf2de
Source noteuspto-grants-2016_08