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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1639743Generated: October 30, 2026

Sodium Hydroxide → (2-Methylpyrazolo[1,5-a]pyridin-4-yl)methanol

https://huagongshe.com/reaction/1639743

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantEthyl 4-(hydroxymethyl)-2-methylpyrazolo[1,5-a]pyridine-3-carboxylateHCID 59334472—
SolventSulfuric AcidHCID 1118—
Product(2-Methylpyrazolo[1,5-a]pyridin-4-yl)methanolHCID 5933453999%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of ethyl 4-(hydroxymethyl)-2-methylpyrazolo[1,5-a]pyridine-3-carboxylate (41.0 g, 0.180 mol) and 40% aqueous sulfuric acid solution (350 mL) was stirred at 100° C. for 2 hr. The reaction mixture was basified with 10% aqueous sodium hydroxide solution, and extracted with dichloromethane. The extract was dried over anhydrous sodium sulfate and the solvent was evaporated under reduced pressure to give the title compound (28.0 g, yield 99%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08110585B2
Source datasetuspto-grants-2012_02
ORD IDord-34668994e19f439cace307091e02eaa3
Source noteuspto-grants-2012_02