HuagongsheHuagongshe Chemistry Print Report · For research reference only
Aluminium lithium hydride → [5-methyl-1-(propan-2-yl)-1H-pyrazol-3-yl]methanol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Aluminium lithium hydride | HCID 21226445 | — |
| Reactant | Ethyl 1-isopropyl-5-methyl-1H-pyrazole-3-carboxylate | HCID 23005696 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | [5-methyl-1-(propan-2-yl)-1H-pyrazol-3-yl]methanol | HCID 23005569 | 88% |
Reaction Steps
To ethyl 1-isopropyl-5-methyl-1H-pyrazole-3-carboxylate (7.68 g, 39.1 mmol) in THF (50 mL) at 0° C. was added LAH (1.49 g, 39.1 mmol). The cold bath was removed, and the reaction mixture was stirred for 2 hours, and then quenched carefully with sodium sulfate decahydrate. The reaction mixture was filtered through Celite and washed with Et2O. The filtrate was concentrated under reduced pressure to give 5.3 g (88%) of the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09174981B2 |
| Source dataset | uspto-grants-2015_11 |
| ORD ID | ord-eddea3fe6be443afb27ba168522ac205 |
| Source note | uspto-grants-2015_11 |