Chiral phosphine oxides and chiral esters in stereoselective intermolecular acylation reactions of phosphine oxides
作者:David Cavalla、Catherine Guéguen、Adam Nelson、Peter O'Brien、Matthew G Russell、Stuart Warren
DOI:10.1016/0040-4039(96)01612-7
日期:1996.10
Single diastereomers of β-keto phosphineoxides have been generated from intermolecular acylation of phosphineoxides using either chiral esters or chiral phoshine oxides. In most cases, reduction of the ketone products was not affected by the presence of extra chiral centres. Some mechanistic points of interest in the acylation reactions are discussed.
1,3-Stereocontrol with phosphine oxides: asymmetric synthesis of all four diastereoisomers of a γ′-benzyloxy β-hydroxy phosphine oxide
作者:Adam Nelson、Stuart Warren
DOI:10.1039/a903370j
日期:——
structure of lithiated phosphine oxides. We have developed complementary methods for the asymmetric synthesis of all four diastereomeric β-hydroxy phosphine oxides 4-benzyloxy-2-diphenylphosphinoyl-1-(2-furyl)octan-1-ol and our approach constitutes a formal synthesis of all eight possiblestereoisomers. A series of similar β-hydroxy phosphine oxides were eliminated to give optically active homoallylic