HuagongsheHuagongshe Chemistry Print Report · For research reference only
Pyridine → 1-(3-methyl-1H-indazol-1-yl)Ethanone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Pyridine | HCID 1049 | — |
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | HCID 178434273 | HCID 178434273 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 1-(3-methyl-1H-indazol-1-yl)Ethanone | HCID 12639186 | 91% |
Reaction Steps
3-Methylindazole (1.00 g, 7.6 mmol) (J. Med. Chem. 2706 (1997)] was dissolved in 10 ml THF and stirred at room temperature under a blanket of argon. Pyridine (0.64 ml, 7.9 mmol) was added, followed by Ac2O (0.79 ml, 8.3 mmol) and catalytic DMAP (90 mg, 0.7 mmol). The reaction proceeded for 2 h and was then partitioned between 1N HCl and dichloromethane. The organic phase was dried over MgSO4 and concentrated under vacuum to a tan solid (1.2 g, 91% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07507763B2 |
| Source dataset | uspto-grants-2009_03 |
| ORD ID | ord-bb936bcf86b84c1b9b86441df70ddda7 |
| Source note | uspto-grants-2009_03 |