3-Bromo-2,5-dimethoxybenzaldehyde → 3-Bromo-2,5-dimethoxybenzyl Alcohol

関与物質

反応手順

To a cooled (0° C.) solution of 51 (8.0 g, 33 mmol) in THF (100 ml) was added LiAlH4 (15 ml of 1.0M in THF) dropwise. After 15 min, the reaction was quenched with 2N HCl and the aqueous layer was extracted with EtOAc. The EtOAc layer was dried concentrated to give a solid (7.5 g, 93%): Mp=65–67° C.; 1H NMR (DMSO-d6) δ 7.05 (d, 1 H, J=3.0 Hz), 6.98 (d, 1 H, J=2.5 Hz), 5.28 (t, 1 H, J=4.9 Hz), 4.47 (d, 2 H, J=5.7 Hz), 3.73 (s, 3 H), 3.67 (s, 3 H); MS 245 (M−H)−

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