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.
通过将金属化的甲基二苯基膦氧化物10非对映选择性地添加到Mukaiyama的酮缩醛8和9中,制备了手性二苯基膦酰基羟基醛1和2。减少到diphenylphosphinoyl 1,2-二醇3和4中也有描述。尖锐的不对称二羟基化为二苯基膦酰基1,2二醇3和4提供了另一种途径;比较了两种方法。