Efficient Syntheses of 4-Iodopyridine and of 4-Pyridylboronic Acid Pinacol Ester

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• No further purification is required for the next step. Analytical sample of iodopyridine (off-white, sublimable solid) is obtained by passing a CH2Cl2 solution of the crude product through an alumina pad and evaporation. It should be stored at +4°C and rapidly used
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• Hot filtration may be necessary to remove some brown impurity
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