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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1521554Generated: November 1, 2026

Methanol → 3-Bromo-5-methoxy-4-methylpyridine

https://huagongshe.com/reaction/1521554

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant3,5-Dibromo-4-methylpyridineHCID 819338—
ReactantSodiumHCID 5360545—
ReactantSodium MethoxideHCID 10942334—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product3-Bromo-5-methoxy-4-methylpyridineHCID 57363789—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a freshly prepared sodium methoxide from sodium metal (0.165 g, 0.0072 mol) and methanol (2.5 mL), 3,5-dibromo-4-methyl-pyridine (1.0 g, 0.0040 mol) dissolved in N,N-dimethylformamide (10 mL) was added and heated at 80° C. overnight. Reaction was diluted with ethyl acetate and quenched with ice water, and layers were separated. The aqueous layer was extracted with ethyl acetate (3×20 mL). The combined organic extracts were washed with saturated aqueous sodium chloride solution, dried over sodium sulphate and concentrated to provide the title compound. 1H NMR (400 MHz, CDCl3) δ 8.33 (s, 1H), 8.09 (s, 1H), 3.05 (s, 3H), 2.32 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073929B2
Source datasetuspto-grants-2015_07
ORD IDord-b103602b669d476cb888614d218a9919
Source noteuspto-grants-2015_07