反应详情

To a stirred solution of 1-cyclohexyl-2-(4-cyclohexyloxy-phenyl)-ethanone (1.17 mmol, 0.35 g) and triethylamine (1.17 mmol, 0.16 mL) in THF (1.0 mL) was added a solution of ethyl glyoxylate (50% in toluene, 5.83 mmol, 1.15 mL) and continued stirring for 12 h at room temperature. After removal of volatiles under reduced pressure, the crude product was purified on a 24 g SiO2 cartridge using an ethyl acetate/hexanes gradient to give 4-cyclohexyl-3-(4-cyclohexyloxy-phenyl)-2-hydroxy-4-oxo-butyric acid ethyl ester (0.28 g).

1. customAfter removal of volatiles under reduced pressure
2. customthe crude product was purified on a 24 g SiO2 cartridge