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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 12565Generated: October 25, 2026

Hydrochloric Acid → 5,6-Diphenyl-pyridine-2-carboxylic acid

https://huagongshe.com/reaction/12565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
ReactantEthyl 5,6-diphenylpyridine-2-carboxylateHCID 14789610—
SolventEthanolHCID 702—
Product5,6-Diphenyl-pyridine-2-carboxylic acidHCID 21471526—

Reaction Steps

A solution of ethyl 5,6-diphenylpyridine-2-carboxylate (Compound 21, 40 mg, 0.13 mmol) and LiOH (1N, 1 ml) in EtOH (2 ml) was stirred at room temperature overnight. The mixture was acidified with 10% HCl, then extracted with EtOAc. The organic layer was washed with water, and brine, and dried over Na2SO4. The filtered solvent was concentrated in vacuo, and the residue was purified by silica gel chromatography (20-80% Ethyl acetate in hexane) to give title compound as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07728014B2
Source datasetuspto-grants-2010_06
ORD IDord-43af859442634bd7bb2952e0d4381809
Source noteuspto-grants-2010_06