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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 523891Generated: October 27, 2026

Hydrochloric Acid → 6-(Di-pyridin-2-yl-amino)-hexanoic acid

https://huagongshe.com/reaction/523891

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
ReactantEthyl AcetateHCID 8857—
Reactant6-(Di-pyridin-2-yl-amino)-hexanoic acid methyl esterHCID 58545021—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product6-(Di-pyridin-2-yl-amino)-hexanoic acidHCID 5854503558%

Reaction Steps

LiOH (12 mg, 0.50 mmol) in water (0.3 mL) was added to II (33 mg, 0.11 mmol) in THF (0.8 mL) at rt. After 2 h, the reaction mixture was neutralized with 2N HCl, and was then poured onto brine (5 mL), and EtOAc (5 mL) was added. The phases were separated and the aqueous phase was extracted with EtOAc (2×2 mL). The organic phases were combined, dried over MgSO4, filtered, and then evaporated under reduced pressure. The resulting residue was purified by silica gel column chromatography using CH2Cl2/MeOH (100:1 to 100:4) as eluant to furnish III as a colourless oil (18.1 mg, 58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09340503B2
Source datasetuspto-grants-2016_05
ORD IDord-0c6ba30c29e64dfaaf88192370500a23
Source noteuspto-grants-2016_05