反应详情

To a solution of 3.34 g (0.02 mol) of 4-carboxypicolinic acid dissolved in 150 ml of ethanol under heating was dropwise added a solution of 2.20 g (0.01 mol) of zinc acetate.dihydrate in 10 ml of water under stirring. After the dropwise addition, the mixture was stirred at the same temperature for 15 minutes. The solid obtained after leaving the mixture to stand for 2 days was collected by filtration, and recrystallized from water to obtain 4.30 g of crystals (yield 99.3%).

1. temperatureunder heating
2. additionAfter the dropwise addition
3. customThe solid obtained
4. customafter leaving the mixture
5. waitto stand for 2 days
6. filtrationwas collected by filtration
7. customrecrystallized from water