HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1754385Generated: November 1, 2026
Aluminium lithium hydride → HCID 83877737, compound
https://huagongshe.com/reaction/1754385
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Aluminium lithium hydride | HCID 21226445 | — |
| Reactant | HCID 86724386 | HCID 86724386 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Ammonium Hydroxide | HCID 14923 | — |
| Solvent | Dichloromethane methanol | HCID 21226129 | — |
| Product | HCID 83877737 | HCID 83877737 | 90.4% |
Reaction Steps
A mixture of N-[1-(4-fluorophenyl)pyrazol-4-yl]formamide (0.275 g, 1.33 mmol) and LiAlH4 (1.33 mL, 2.66 mmol, 2 M in THF) in THF (5 mL) was heated at 45° C. for 1 h. The reaction mixture was cooled to room temperature and diluted with 5 mL of concentrated ammonium hydroxide and 80 mL of 20% MeOH/CH2Cl2. The organic layer was separated, dried over anhydrous sodium sulfate, filtered, concentrated in vacuo, and purified by flash chromatography (SiO2, 0-100% EtOAc/CH2Cl2 gradient elution) to give 1-(4-fluorophenyl)-N-methylpyrazol-4-amine as an oil (0.23 g, 90%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US09169248B2 |
|---|
| Source dataset | uspto-grants-2015_10 |
|---|
| ORD ID | ord-e789903b0fd94a669f5c496f8c8b4779 |
|---|
| Source note | uspto-grants-2015_10 |
|---|