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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 706548Generated: October 25, 2026

Aluminium lithium hydride → [5-methyl-1-(propan-2-yl)-1H-pyrazol-3-yl]methanol

https://huagongshe.com/reaction/706548

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAluminium lithium hydrideHCID 21226445—
ReactantEthyl 1-isopropyl-5-methyl-1H-pyrazole-3-carboxylateHCID 23005696—
SolventTetrahydrofuranHCID 8028—
Product[5-methyl-1-(propan-2-yl)-1H-pyrazol-3-yl]methanolHCID 2300556988%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09174981B2
Source datasetuspto-grants-2015_11
ORD IDord-eddea3fe6be443afb27ba168522ac205
Source noteuspto-grants-2015_11