Pj. Walsh et al., ASYMMETRIC DIHYDROXYLATION (AD) CYCLIZATION OF N-DIBOC ALLYLIC AND HOMOALLYLIC AMINES - SELECTIVE DIFFERENTIATION OF THE HYDROXYL-GROUPS/, Tetrahedron letters, 34(35), 1993, pp. 5545-5548
Asymmetric dihydroxylation of N-diBoc protected allylic and homoallyli
c amines with in situ cyclization affords the corresponding oxazolidin
ones in good yields. The enantioselectivity is dependent on the substi
tution pattern of the olefin and ranges from 34 - 98%. This methodolog
y allows selective differentiation of the hydroxyl groups formed in th
e AD and increases the potential applications of the resulting product
s.