反应详情

温度

180 °C

3-Phenylpentane-1,5-diol (452 mg, 2.51 mmol) was dissolved in 48% aqueous hydrobromic acid (284 μL, 2.51 mmol) and toluene (2.5 mL), placed in a sealed tube, and heated in a microwave oven at 180° C. for 10 minutes. The mixture was cooled and purified by column chromatography on silica gel, eluting with 0-100% ethyl acetate/hexanes to give the title compound as a colorless oil. 1H NMR (500 MHz, CDCl3) δ 1.57 (br s, 1H), 1.81-1.97 (m, 2H), 2.08-2.23 (m, 2H), 2.97 (quintet, J=5.0 Hz, 1H), 3.06-3.14 (m, 1H), 3.24-3.31 (m, 1H), 3.42-3.49 (m, 1H), 3.49-3.56 (m, 1H), 7.17-7.25 (m, 3H), 7.28-7.33 (m, 2H).

1. temperatureThe mixture was cooled
2. custompurified by column chromatography on silica gel
3. washeluting with 0-100% ethyl acetate/hexanes