Water → 2-Bromo-6-iodo-3-methoxypyridine

참여 물질

반응 단계

2-Bromo-6-iodo-pyridin-3-ol (2.98 g) is dissolved in N,N-dimethylformamide (140 ml) and thereto are added cesium carbonate (16.3 g) and methyl iodide (1.25 mL) and the mixture is stirred at room temperature overnight. To the reaction solution are added water and ethyl acetate, and the mixture is separated, and the organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=19:1→4:1) to give 2-bromo-6-iodo-3-methoxy-pyridine (2.45 g). MS (m/z): 314/316 [M+H]+

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