反应详情

The oil from step 3 was dissolved in 10% acetic acid (250 ml) and the solution boiled under reflux for one hour. The cooled reaction mixture was evaporated, and the residue purified by flash chromatography (CH2Cl2: acetone 9:1-1:1) to give 4.00 g (36%) of the title compound as a semi-solid.

1. temperatureunder reflux for one hour
2. customThe cooled reaction mixture
3. customwas evaporated
4. customthe residue purified by flash chromatography (CH2Cl2: acetone 9:1-1:1)