反应详情

1.31 g (7.5 mmol) of diethyl azodicarboxylate are added at 0° C. to 1.97 g (7.50 mmol) of triphenylphosphine in 30 ml of tetrahydrofuran, and the mixture is stirred at room temperature for 0.5 hour. 1.11 g (7.50 mmol) of 3,4,5-trifluorophenol and 1.38 g (7.50 mmol) of trans-4-pentylcyclohexylmethanol are then added, and the mixture is stirred at room temperature for 18 hours. Evaporation of the solvent and chromatography on silica gel using hexane give 1.23 g of product. ##STR5## Phase sequence: X 14 (-26) I

1. stirringthe mixture is stirred at room temperature for 18 hours
2. customEvaporation of the solvent and chromatography on silica gel