反应详情

8.2 ml (100 mmol) of cyclopentadiene and 4.2 ml (40 mmol) of cyclohexanone were added to 40 ml of dehydrated methanol, and 5.0 ml (60 mmol) of pyrrolidine were then added dropwise at 0° C. Then, reaction was carried out at room temperature for 3 hours. Next, 3.8 ml of acetic acid were slowly added at 0° C., and 20 ml of water were further added, followed by extraction with diethyl ether. The resultant organic phase, after washed with water, was dried over magnesium sulfate, and the used solvent was then distilled off to obtain 5.95 g of a yellow liquid.

1. additionwere then added dropwise at 0° C
2. customThen, reaction
3. extractionfollowed by extraction with diethyl ether
4. washThe resultant organic phase, after washed with water
5. dry with materialwas dried over magnesium sulfate
6. distillationthe used solvent was then distilled off