Stereocontrolled synthesis of R or S diphenylphosphinoyl hydroxy aldehydes and 1,2 diols using bicyclic aminals
作者:Peter O'Brien、Stuart Warren
DOI:10.1016/0040-4039(95)00334-9
日期:1995.4
Homochiral diphenylphosphinoyl hydroxy aldehydes 1 and 2 have been made by diastereoselective additions of metallated methyldiphenylphosphine oxides 10 to Mukaiyama's keto aminals 8 and 9. Reduction to diphenylphosphinoyl 1,2 diols 3 and 4 is also described. Sharpless asymmetric dihydroxylation provides an alternative route to diphenylphosphinoyl 1,2 diols 3 and 4; the two approaches are compared.