[GRAPHICS]The diastereoselective hetero-Diels-Alder reaction between Danishefsky's diene and chiral aldehydes is catalyzed by chiral chromium-Schiff base complexes. High levels of catalyst control are obtained in several cases, allowing access to all four stereoisomeric products through appropriate choice of aldehyde and catalyst enantiomers.
Chelation-controlled facially selective cyclocondensation reactions of chiral alkoxy aldehydes: syntheses of a mouse androgen and of a carbon-linked disaccharide
作者:Samuel J. Danishefsky、William H. Pearson、Daniel F. Harvey、Clarence J. Maring、James P. Springer
DOI:10.1021/ja00291a027
日期:1985.3
DANISHEFSKY, S. J.;PEARSON, W. H.;HARVEY, D. F.;MARING, C. J.;SPRINGER, J+, J. AMER. CHEM. SOC., 1985, 107, N 5, 1256-1268
作者:DANISHEFSKY, S. J.、PEARSON, W. H.、HARVEY, D. F.、MARING, C. J.、SPRINGER, J+