SEARCH Articles Figures Tables 2.3- O-Isopropylidene-D-glyceraldehyde Boronates, allylreaction with 2,3-O-isopropylidene-D-glyceraldehyde Cram selectivity D Glyceraldehyde Glyceraldehyd Isopropylidene glyceraldehydes Isopropylidene-D-glyceraldehyd O selective