S. Kobayashi et al., LANTHANIDE TRIFLATE-CATALYZED 3-COMPONENT COUPLING REACTIONS OF ALDEHYDES, HYDROXYLAMINES, AND ALKENES LEADING TO ISOXAZOLIDINE DERIVATIVES, Chemistry Letters, (10), 1997, pp. 1039-1040
Three-component coupling reactions of aldehydes, hydroxylamines, and a
lkenes proceeded smoothly in the presence of a catalytic amount of a l
anthanide triflate, to afford isoxazolidine derivatives in high yields
with high diastereoselectivities. The asymmetric 1,3-dipolar cycloadd
ition using a chiral lanthanide catalyst is also described.