反应详情

14.18 g (0.139 mol) of neutral Al2O3 and 29.96 g (0.13 mol) of pyridinium chlorochromate (PCC) are added to a solution of 25.0 g (0.0695 mol) of the compound from Example IX in 500 ml CH2Cl2 and the mixture is stirred for 1 h at room temperature. It is drawn off by suction over silica gel and subsequently washed with CH2Cl2, and the filtrate is concentrated in a vacuum, whereby the product precipitates out.

1. washsubsequently washed with CH2Cl2
2. concentrationthe filtrate is concentrated in a vacuum, whereby the product
3. customprecipitates out