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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 877973Generated: October 30, 2026

Hydrochloric Acid → 6-methoxy-N-methyl-4-o-tolylpyridin-3-amine

https://huagongshe.com/reaction/877973

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
Reactant6-chloro-N-methyl-4-(2-methylphenyl)pyridin-3-amineHCID 57710443—
Product6-methoxy-N-methyl-4-o-tolylpyridin-3-amineHCID 70663380—

Reaction Steps

6-Chloro-N-methyl-4-o-tolylpyridin-3-amine (150 mg, 0.645 mmol, prepared as described in WO2005/002577) in a 10% NaOH solution in CH3OH (300 mg NaOH in 3 mL CH3OH) was heated to 160° C. for 3 hours. After cooling, the reaction mixture was neutralized with 6M aqueous HCl and extracted three times with EtOAc. The combined organic layers were washed with brine and dried over MgSO4. Filtration followed by removal of volatiles in vacuo gave a gummy oil. The desired compound was isolated by flash chromatography on silica gel (20% EtOAc in n-hexane) as a white waxy solid (115 mg, 78%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987307B2
Source datasetuspto-grants-2015_03
ORD IDord-8b751125510c441eadbd0068c3184e1f
Source noteuspto-grants-2015_03