A convenient route to enantiomerically pure highly oxygenated decalins from sugar allyltin derivatives
作者:Sławomir Jarosz、Stanisław Skóra
DOI:10.1016/s0957-4166(00)00084-7
日期:2000.4
Preparation of enantiomericallypure, highly oxygenated decalins via tandem Wittig-type Diels–Alder reactions from the corresponding sugar-derived dieno-phosphoranes and/or -phosphonates and sugar aldehydes is described. Application of the phosphonates is more convenient than phosphoranes since the former can be prepared in much higher yields and react with aldehydes under milder conditions. The intermediate