反应详情

While mixing and stirring 193 g of 3-nitrocinnamic acid, 2 of methanol and 50 g of concentrated sulfuric acid, the mixture was heated under reflux for 2 hours. The reaction solution was poured into water and the crystals obtained were filtered. To a reaction solution under heat-refluxing while mixing and stirring 2 of 2-propanol, 200 ml of water, 20 g of ammonium chloride and 200 g of reduced iron, the crystals obtained above were gradually added, and the solution was further heated under reflux for one hour. The reaction solution still being hot was filtered, the filtrate was poured into 10 of water, and the crystals (methyl 3-aminocinnamate) obtained were collected by filtration. Yield: 108 g.

1. additionWhile mixing
2. temperaturethe mixture was heated
3. temperatureunder reflux for 2 hours
4. customthe crystals obtained
5. filtrationwere filtered
6. temperatureTo a reaction solution under heat-refluxing
7. additionwhile mixing
8. customthe crystals obtained
9. additionabove were gradually added
10. temperaturethe solution was further heated
11. temperatureunder reflux for one hour
12. filtrationThe reaction solution still being hot was filtered
13. additionthe filtrate was poured into 10 of water