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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1098574Generated: October 31, 2026

Lithium Hydroxide → 5-methyl-1-(propan-2-yl)-1H-pyrazole-4-carboxylic acid

https://huagongshe.com/reaction/1098574

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantHCID 59734395HCID 59734395—
Product5-methyl-1-(propan-2-yl)-1H-pyrazole-4-carboxylic acidHCID 2300567170%

Reaction Steps

In a procedure analogous to Example B6, ethyl 1-isopropyl-5-methyl-1H-pyrazole-4-carboxylate (537 mg, 2.74 mmol) and lithium hydroxide (459 mg, 10.95 mmol) were combined to give 1-isopropyl-5-methyl-1H-pyrazole-4-carboxylic acid (32 mg, 70% yield) as an off white solid. MS (ESI) m/z: 169.0 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143293B2
Source datasetuspto-grants-2012_03
ORD IDord-ed8bf95c61ac41e68dacb6720808edbe
Source noteuspto-grants-2012_03