α-Acetoxysulfones as “Chiral Aldehyde” Equivalents
作者:Barry M. Trost、Matthew L. Crawley、Chul Bom Lee
DOI:10.1021/ja000627h
日期:2000.6.1
S,O-Acetals as Novel “Chiral Aldehyde” Equivalents
作者:Barry M. Trost、Matthew L. Crawley、Chul Bom Lee
DOI:10.1002/chem.200500919
日期:2006.3.1
Palladium-catalyzedasymmetricallylicalkylations (AAA) to form "chiral aldehyde" equivalents were investigated. Alpha-acetoxysulfones were formed in high enantiomeric excess as single regioisomers in AAA reactions of allylic geminal dicarboxylates with sodium benzenesulfinate. The directing ability of this novel functional group was highlighted by a series of dihydroxylations, affording syn diols