反应详情

温度

0 °C

To a solution of 6-(3-hydroxymethyl-phenyl)-hexanoic acid methyl ester (587 mg, 2.48 mmol) in THF (10 mL) is added triphenylphosphine (716 mg, 2.73 mmol), stirred until homogeneous then cooled to 0° C. NBS (486 mg, 2.73 mmol) is added portionwise and the reaction mixture stirred for 45 min. The mixture is concentrated and the residue is purified by flash chromatography (eluting with 10% ethyl acetate/hexanes) to give 682 mg of title compound. 1H NMR (300 MHz, CDCl3) δ 7.23 (m, 3H), 7.10 (m, 1H), 4.48 (s, 2H), 3.66 (s, 3H), 2.60 (t, 2H), 2.31 (t, 2H), 1.63 (m, 4H), 1.37 (m, 2H).

1. stirringthe reaction mixture stirred for 45 min
2. concentrationThe mixture is concentrated
3. customthe residue is purified by flash chromatography (eluting with 10% ethyl acetate/hexanes)