反应详情

To a vigorously stirred, ice-water cooled suspension of 2.0 g of 3-carbethoxy-4-piperidone in 20 ml of aqueous sodium carbonate is added 1 ml of acetic anhydride. The mixture is stirred in the cold for 30 minutes then extracted with ether. The organic layer is dried and evaporated to afford 1.5 g of colorless solid, m.p. 53°-55° C.

1. stirringThe mixture is stirred in the cold for 30 minutes
2. extractionthen extracted with ether
3. customThe organic layer is dried
4. customevaporated