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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1162430Generated: October 29, 2026

Methanol → 2-Amino-6-chloroimidazo[1,2-b]pyridazine

https://huagongshe.com/reaction/1162430

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTetrahydrofuranHCID 8028—
ReactantPotassium CarbonateHCID 11430—
ReactantN-(6-Chloroimidazo[1,2-b]pyridazin-2-yl)-2,2,2-trifluoroacetamideHCID 57749420—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
Product2-Amino-6-chloroimidazo[1,2-b]pyridazineHCID 4975802190%

Reaction Steps

To a solution of N-(6-chloroimidazo[1,2-b]pyridazin-2-yl)-2,2,2-trifluoroacetamide (80 mg, 0.30 mmol) in a THF:methanol:water (1 mL each) mixture was added anhydrous potassium carbonate (400 mg, 3 mmol). The reaction mixture was refluxed for 8 hrs. After cooling to rt, the reaction mixture diluted with ethyl acetate and water. The phases were separated and the organic layer was washed with brine (2×5 mL), dried over sodium sulfate and concentrated to afford the title compound (45 mg, 90%). 1H NMR (DMSO-d6, 300 MHz): δ 5.65 (s, 2H), 7.02 (d, 1H), 7.7 (d, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07820665B2
Source datasetuspto-grants-2010_10
ORD IDord-7b9917f65e5e4381b4a22e201fc71400
Source noteuspto-grants-2010_10