The imines derived in situ from aldehydes and amines undergo
smoothly nucleophilic addition with allyltributylstannane in 1-butyl-3-methylimidazolium
tetrafluoroborate ([bmim]BF4) ionic
liquid to afford the corresponding homoallylic amines in high yields
with high selectivity. The recovered ionic liquid can be recycled
in four to five runs with gradual decrease in activity.
allylation - ionic liquids - imines - homoallylic
amines