反应详情

To a mixture of cyclopentanol (0.5 g, 6 mol), p-nitrophenyl chloroformate (1.3 g, 6.4 mmol) in methylene chloride (10 mL) was added triethylamine (1.2 mL, 8.7 mmol). The mixture was stirred at r.t. for 2 h. After removal of solvent, the crude residue was purified by flash chromatography on a silica gel column eluted with 20% EtOAc in hexane to yield the desired product (0.86 g, 59%).

1. customAfter removal of solvent
2. customthe crude residue was purified by flash chromatography on a silica gel column
3. washeluted with 20% EtOAc in hexane