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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 427733Generated: October 30, 2026

Piconol → HCID 18357727, compound

https://huagongshe.com/reaction/427733

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiconolHCID 11474—
ReactantSodium hydrideHCID 24758—
Reactant2-Chloro-3-methyl-5-nitropyridineHCID 89648—
SolventDimethylformamideHCID 6228—
ProductHCID 18357727HCID 1835772751%

Reaction Conditions

Temperature-20 °C

Reaction Steps

2-Pyridylcarbinol (1.96 g, 18 mmol) in dry dimethylformamide (20 ml) was cooled to −20° C. and treated with sodium hydride (0.48 g of 80% dispersion in mineral oil, 16 mmol). The mixture was stirred under argon at −20° C. for one hour then a solution of 2-chloro-3-methyl-5-nitropyridine (2.07 g, 12 mmol) in dry dimethylformamide (10 ml) was added and the mixture was allowed to warn to room temperature over 16 hours. The solvent was removed in vacuo and the residue partitioned between dichloromethane (3×100 ml) and 10% aqueous sodium hydroxide solution(75 ml). The combined organics were dried (Na2SO4) and evaporated in vacuo to a residue which was subjected to flash column chromatography with 1:1 ethyl acetate/petroleum ether as eluant to afford the title compound (1.47 g, 51%) as lemon yellow crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06313145B1
Source datasetuspto-grants-2001_11
ORD IDord-1bb25614cbb04cd19954d7e973d0c41c
Source noteuspto-grants-2001_11