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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 709259Generated: October 29, 2026

Lithium hydroxide, monohydrate → HCID 67248550, compound

https://huagongshe.com/reaction/709259

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 numberUS09180123B2
Source datasetuspto-grants-2015_11
ORD IDord-520e7fde1eea4d93b2a5f19218df06ca
Source noteuspto-grants-2015_11