反应详情

1-octanol (2 mL), 1-[4-fluoro-3-(trifluoromethyl)phenyl]ethanone (2.62 g), potassium tert-butoxide (14 mL, 1.0M) and tetrahydrofuran (30 mL) were heated at 65° C. for 3 hrs to produce the title product as a brownish oil (4.00 g). The product was purified by silica gel column chromatography using the Combi-Flash system (Hex:EtOAc) as white solid in 60% (1.20 g). TLC (1:5 EtOAc:Hex), Rf=0.4; 1H NMR (400 MHz, CDCl3) δ 8.18 (d, 1H, J=2.0 Hz), 8.10 (dd, 1H, J=8.8 Hz, J=2.3 Hz), 7.02 (d, 1H, J=8.8 Hz), 4.12 (t, 2H, J=6.4 Hz), 2.58 (m, 3H), 1.80-1.89 (m, 2H), 1.42-1.54 (m, 2H), 1.22-1.40 (m, 8H), 0.89 (t, 3H, J=6.7 Hz).