Synthesis of (R)- or (S)-diphenylphosphinoyl hydroxy aldehydes and 1,2-diols using Mukaiyama's bicyclic aminal methodology and Sharpless asymmetric dihydroxylation
An efficient protocol for a sharpless style racemic dihydroxylation
作者:Jason Eames、Helen J. Mitchell、Adam Nelson、Peter O'Brien、Stuart Warren、Paul Wyatt
DOI:10.1016/0040-4039(95)00054-g
日期:1995.3
Dihydroxylation with solid OsCl3 to provide the catalytic oxidant, K3Fe(CN)(6) as stoichiometric oxidant, quinuclidine as the accelerating ligand with added K2CO3 and methanesulfonamide in a two-phase system (water and t-butanol) gives excellent yields of racemic syn diols from various alkenes (stilbenes, sulfides and phosphine oxides).