反应详情

To a suspension of ether-alcohol 44 (0.9 g, 0.0024 mol) in THF (5 ml) was added triphenyl phosphene (0.93 g, 0.0035 mol) and methyl salicylate (0.54 ml, 0.0036 mol). The resulting mixture was stirred at ambient temperature for 5 minutes and diisopropyl azodicarboxilate (0.71 g, 0.0035 mol) was added drop wise to the mixture. The reaction mixture was stirred at the same temperature for seven days. Dichloromethane (30 ml) was added to the mixture followed by drying of the resulted solution over sodium sulfate, evaporation of the solvents and FC to give ester 45 (0.12 g, 9.62%).

1. stirringThe reaction mixture was stirred at the same temperature for seven days
2. dry with materialby drying of the resulted solution over sodium sulfate, evaporation of the solvents and FC