Thionyl bromide → 4-(Bromomethyl)-2-chloropyridine

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반응 단계

To a solution of 2-chloropyridine-4-methanol (1.02 g, 7.10 mmol) in 15 mL of dichloromethane was added thionyl bromide (1.77 g, 8.53 mmol) dropwise. After 15 min, the reaction was quenched with saturated aqueous ammonium chloride. The organic solution was washed 2× with water, dried over sodium sulfate, filtered, and concentrated in vacuo to provide 4-(bromomethyl)-2-chloropyridine that gave a mass ion (ES+) of 208.0 for [M+H]+.

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