Development of a Strategy for Linear-Selective Cu-Catalyzed Reductive Coupling of Ketones and Allenes for the Synthesis of Chiral γ-Hydroxyaldehyde Equivalents
作者:Raphael K. Klake、Samantha L. Gargaro、Skyler L. Gentry、Sharon O. Elele、Joshua D. Sieber
DOI:10.1021/acs.orglett.9b02973
日期:2019.10.4
N-substituted allyl equivalents generated from a chiral allenamide. By choice of the appropriate ligand for the Cu-catalyst, high linear selectivity can be obtained with good diastereocontrol. This methodology allows access to chiral γ-hydroxyaldehyde equivalents that were applied in the synthesis of chiral γ-lactones and 2,5-disubstitued tetrahydrofurans.
我们报道了利用手性烯丙酰胺产生的N-取代的烯丙基等价物对酮进行烯丙基化的立体选择性方法的发展。通过为Cu催化剂选择合适的配体,可以获得良好的非对映异构控制的高线性选择性。该方法允许获得手性γ-羟醛等效物,该手性γ-羟醛等效物用于合成手性γ-内酯和2,5-二取代的四氢呋喃。