Dimethylformamide → (4-Bromo-3-methoxy-2naphtyl)-triphenylsilane

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反応手順

A 150 mL Schlenk flask was charged with 4.68 g of (3-methoxy-2-naphthyl)(triphenyl)silane (11.23 mmol) and 2.20 g of N-bromosuccinimide (NBS) (12.36 mmol) under argon followed by addition of 10 mL of dimethylformamide (DMF). The resultant mixture was stirred overnight at room temperature, then diluted with 500 mL of water and extracted with 3 times 50 mL of CH2Cl2. The combined organic extracts were washed with 200 mL of water, brine and dried over Na2SO4. The product was purified by passing through short column (silica) using a mixture heptane:EtOAc in a ratio of 15:1 as eluent to afford 5.28 g of product as off-white solid (10.66 mmol) with a yield of 96%.

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