1,5-Stereoinduction in Boron-Mediated Aldol Reactions of β,δ-Bisalkoxy Methylketones Containing Cyclic Protecting Groups
作者:Luiz C. Dias、Ellen C. Polo、Marco A. B. Ferreira、Cláudio F. Tormena
DOI:10.1021/jo300125d
日期:2012.4.20
cyclic protecting groups on the aldolreactions. The aldol adducts were obtained with moderate to high 1,5-anti stereoselectivity that was dependent on both the identity of the protecting group on the β,δ-oxygen stereocenters and the relative stereochemistry between the β and δ chiral centers. A theoretical analysis of the transition states involving these aldolreactions was performed utilizing DFT (density