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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84277Generated: October 30, 2026

Lithium hydroxide, monohydrate → HCID 67248550, compound

https://huagongshe.com/reaction/84277

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium hydroxide, monohydrateHCID 168937—
Reactantethyl 2-methyl-4-(3-methyl-2-oxo-4-phenylpyridin-1(2H)-yl)-2-(methylsulfonyl)butanoateHCID 67248376—
SolventHydrochloric AcidHCID 313—
SolventMethanol tetrahydrofuran waterHCID 21892291—
ProductHCID 67248550HCID 67248550—

Reaction Steps

To a solution of ethyl 2-methyl-4-(3-methyl-2-oxo-4-phenylpyridin-1(2H)-yl)-2-(methylsulfonyl)butanoate (118.3 mg, 0.313 mmol) in tetrahydrofuran/methanol/water (4:1:1, 3.13 mL) was added lithium hydroxide monohydrate (26.3 mg, 0.626 mmol). The mixture was stirred at ambient temperature overnight. The mixture was diluted with aqueous HCl (1N in water) and extracted with ethyl acetate 2×. The combined organic extracts were dried over magnesium sulfate, filtered and concentrated to dryness to afford 2-methyl-4-(3-methyl-2-oxo-4-phenylpyridin-1(2H)-yl)-2-(methylsulfonyl)butanoic acid as a solid. 109.4 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846933B2
Source datasetuspto-grants-2014_09
ORD IDord-e69696319fd846548b8b238c6be49416
Source noteuspto-grants-2014_09