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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1374467Generated: October 30, 2026

Lithium hydroxide, monohydrate → HCID 21076059, compound

https://huagongshe.com/reaction/1374467

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantHCID 69469825HCID 69469825—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21076059HCID 2107605998.2%

Reaction Steps

To a mixture of 4-(4-fluoro-butyl)-pyridine-2-carboxylic acid methyl ester (0.24 g) in THF (3 mL) and water (1 mL) was added lithium hydroxide monohydrate (71.3 mg, 1.7 mmol, 1.5 equiv). The mixture was stirred at rt overnight and diluted with methanol (20 mL). Then H+ resin was added and the mixture was shaken for 10 minutes. The resin was washed with methanol (1×), 1:1 acetonitrile/water (1×), and acetonitrile (1×). The product was eluted with 5% TEA in methanol (4×) and acetonitrile (1×). The combined organic solvents were evaporated and co-evaporated with toluene to provide 4-(4-Fluoro-butyl)-pyridine-2-carboxylic acid (0.22 g, 65%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07164011B2
Source datasetuspto-grants-2007_01
ORD IDord-9b831ea854a8419488599b02a11610f6
Source noteuspto-grants-2007_01