反应详情

温度

50 °C

To a toluene (10 ml) of the compound (0.250 g) obtained in Example 19-(4), Burgess reagent (0.281 g) was added and the mixture was stirred at 50° C. for 1.5 hours. After reversion to room temperature, the reaction mixture was concentrated to give a crude product, which was further purified by silica gel chromatography (AcOEt/hexane) to give the titled compound (0.156 g, colorless oil.)

1. concentrationAfter reversion to room temperature, the reaction mixture was concentrated
2. customto give a crude product, which
3. customwas further purified by silica gel chromatography (AcOEt/hexane)