反应详情

温度

-10 °C

Cool to −10° C. a well stirred mixture of O-allyl-N-(9-anthracenylmethyl)-cinchonidinium bromide (0.480 g, 0.8 mmol), potassium fluoride (3 gr, 51 mmol), THF (150 mL) and 5-nitropent-1-ene (2.34 g, 20 mmol) and treat with a solution of (S)-2-dibenzylamino-3-phenylpropionaldehyde (2.640 gr, 8 mmol). Allow mixture to warn to room temperature and stir for two days. Concentrate under reduced pressure. Purify on silica gel with hexane/ethyl ether mixtures to give a mixture of two products (2.7 g, 75%).

1. customto warn to room temperature
2. stirringstir for two days
3. concentrationConcentrate under reduced pressure
4. customPurify on silica gel with hexane/ethyl ether
5. customto give