[OH:1][CH:2]1[NH:6][C:5](=[O:7])[CH2:4][CH2:3]1.[CH2:8](O)[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH3:15]>>[CH2:8]([O:1][CH:2]1[NH:6][C:5](=[O:7])[CH2:4][CH2:3]1)[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH3:15]7.5 g of 5-hydroxy-pyrrolidin-2-one, 10 cm3 of n-octanol and 4 g of Amberlite IR 120H are heated to 60° C. for 4 hours. After filtering, the n-octanol is eliminated by distilling under reduced pressure. 5.5 g of the expected product is obtained, m.p. 36°-38° C., crystallized from hexane.
Wird geladen…