反应详情

温度

250 °C

115 g of abietic acid was put into a 1000 ml three-neck bottle , and then 2.3 g of 5% palladium/carbon catalyst was added in. The mixture was stirred at 250° C. (oil bath) for 2 hours, after slightly cooled down, 200 ml of 95% ethanol was added. The mixture was refluxed until completely dissolved, filtered when it was warm, allowed to stand still and to be crystallized to give 70 g of dehydroabietic acid after filtered and dried.

1. temperatureafter slightly cooled down
2. temperatureThe mixture was refluxed
3. dissolutionuntil completely dissolved
4. filtrationfiltered when it
5. temperaturewas warm
6. customto be crystallized