Role of Pseudoephedrine as Chiral Auxiliary in the “Acetate-Type” Aldol Reaction with Chiral Aldehydes; Asymmetric Synthesis of Highly Functionalized Chiral Building Blocks
作者:Marta Ocejo、Luisa Carrillo、Jose L. Vicario、Dolores Badía、Efraim Reyes
DOI:10.1021/jo101878j
日期:2011.1.21
have studied in depth the aldol reaction between acetamide enolates and chiral α-heterosubstituted aldehydes using pseudoephedrine as chiralauxiliary under double stereodifferentiation conditions, showing that high diastereoselectivities can only be achieved under the matched combination of reagents and provided that the α-heteroatom-containing substituent of the chiral aldehyde is conveniently protected