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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 595047Generated: October 30, 2026

Hydrochloric Acid → HCID 89535359, compound

https://huagongshe.com/reaction/595047

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant5,6-Dimethoxy-3-methyl-2-pyridinecarbonitrileHCID 89535361—
CatalystPalladium hydroxideHCID 9942167—
SolventMethanolHCID 887—
ProductHCID 89535359HCID 89535359—

Reaction Steps

To a solution of 5,6-dimethoxy-3-methylpyridine-2-carbonitrile (1-6e, 577 mg, 3.24 mmol) in MeOH (27 mL) was added Pearlman's catalyst (455 mg, 0.648 mmol, 20 weight percent) and concentrated HCl (2.13 mL, 25.9 mmol, 12M). The system was then stirred under an atmosphere of hydrogen (45 psi) overnight. The reaction contents were filtered through a pad of celite and methanol was removed in vacuo. The crude mixture was then basified using saturated Na2CO3 and then extracted using 4:1 Chloroform:Ethanol. The organic phase was washed with brine, dried over Na2SO4, filtered and concentrated to yield a crude product which was purified through column chromatography (SiO2, 0-12% MeOH (containing 10% NH4OH) in dichlormethane) to give the desired product (1-6) as a yellow oil. ESI+ MS [M+H]+ C9H15N2O2: M−16 (—NH2)=167.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09242995B2
Source datasetuspto-grants-2016_01
ORD IDord-72274e5df4644b12b53b76dca03b049b
Source noteuspto-grants-2016_01