HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → methyl 7-ethyl-1H-indazole-5-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 7-ethyl-1H-indazole-5-carboxylic acid | HCID 55271465 | — |
| Product | methyl 7-ethyl-1H-indazole-5-carboxylate | HCID 60144278 | 47% |
Reaction Steps
To a solution of 7-ethyl-1H-indazole-5-carboxylic acid (500 mg, 2.63 mmol) in MeOH (15 mL) was added conc. H2SO4 (0.25 mL). The mixture was heated at reflux overnight. The solvent was removed under reduced pressure to afford a tan solid that was purified by flash chromatography (40 g column) using 15-30% EtOAc/heptane to afford methyl 7-ethyl-1H-indazole-5-carboxylate (252 mg, 47%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08318762B2 |
| Source dataset | uspto-grants-2012_11 |
| ORD ID | ord-6386bd9dc3154cac8e199799417c73ef |
| Source note | uspto-grants-2012_11 |