4-Bromobenzaldehyde → p-Bromobenzhydryl alcohol

関与物質

反応手順

To a solution of p-bromobenzaldehyde 10 (4 g, 21.6 mmol) in THF (20 mL) was added phenyl magnesium bromide (22.7 mL, 22.7 mmol) and the reaction mixture was stirred at room temperature for 30 minutes, quenched with water and partially concentrated under vacuum. The crude material was dissolved in ethyl acetate and washed with water. The organic layer was separated, dried over Na2SO4, filtered and concentrated. The residue was purified via prep-HPLC (ISCO) in silica gel column with a gradient of ethyl acetate (5-45%) in hexanes to afford title compound 11 as a colorless oil (3.7 g, 65%). 1H NMR (DMSO-d6) δ (ppm): 7.49-7.45 (m, 2H), 7.36-7.17 (m, 7H), 5.98 (d, J=4.1 Hz, 1H), 5.68 (d, J=3.9 Hz, 1H).

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