反应详情

温度

150 °C

A mixture of 4-chlorobenzotrifluoride (27.1 g, 1.5 equiv), 3-hydroxybenzyl alcohol (12.4 g, 1 equiv), copper(I) chloride (0.2 g, 0.02 equiv), potassium carbonate (8.3 g, 0.6 equiv), 8-quinolinol (0.29 g, 0.02 equiv) and 1,3-dimethyl-2-imidazolidinone (50 mL) was stirred at 150° C. under argon for 3 days. After cooling, the residue was poured into water and extracted with ethyl acetate. Drying and evaporation, followed by chromatography (silica, dichloromethane) gave the title compound as a pale liquid (11.3 g). 1H-NMR (CDCl3) δ 1.88 (1H, t), 4.69 (2H, d), 6.97 (1H, m), 7.04 (3H, m), 7.17 (1H, m) 7.36 (1H, m) 7.57 (2H, m); MS (APCI−). found (M−1)=267; C14H11F3O2, requires 268.

1. temperatureAfter cooling
2. extractionextracted with ethyl acetate
3. customDrying
4. customevaporation