HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → 2-Amino-6-chloroimidazo[1,2-b]pyridazine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | N-(6-Chloroimidazo[1,2-b]pyridazin-2-yl)-2,2,2-trifluoroacetamide | HCID 57749420 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 2-Amino-6-chloroimidazo[1,2-b]pyridazine | HCID 49758021 | 90% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07820665B2 |
| Source dataset | uspto-grants-2010_10 |
| ORD ID | ord-7b9917f65e5e4381b4a22e201fc71400 |
| Source note | uspto-grants-2010_10 |