11-Bromo-1-undecanol → 4-(11'-Hydroxyundecyl)carboxyphenylboronic acid

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A mixture of 4-carboxyphenylboronic acid (1.0 grams), potassium hydrogen carbonate (2.01 g), 11-bromo-1-undecanol, and N,N-dimethylformamide (60 mL) was heated at 60° C. under a nitrogen atmosphere for 18 hours. After the heating period, the mixture was allowed to cool to room temperature. The mixture was then filtered and the filtrate was concentrated on a rotary evaporator. The concentrated filtrate was diluted with ethyl acetate (500 mL) and the ethyl acetate was washed successively with saturated aqueous sodium bicarbonate (3×300 mL), followed by saturated aqueous sodium chloride (300 mL). After drying over sodium sulfate, the ethyl acetate extract was concentrated on a rotary evaporator and dried under reduced pressure to afford 2.2 grams of the desired product as a light yellow viscous oil that solidified upon standing to a white powder.

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