Aminocatalytic asymmetric Diels–Alder reaction of phosphorus dienophiles and 2,4-dienals
作者:Qing-Qing Zhou、Xin Yuan、You-Cai Xiao、Lin Dong、Ying-Chun Chen
DOI:10.1016/j.tet.2013.10.001
日期:2013.12
functional group are valuable because of their wide application in biological studies and asymmetric catalysis. Here we present an asymmetric Diels–Alder cycloaddition between phosphor-containing dienophiles and 2,4-dienals under the catalysis of chiral amine 1 via the intermediacy of trienamine species (trienamine catalysis). A spectrum of densely functionalized phosphonocyclohexene derivatives was efficiently
带有磷官能团的手性化合物是有价值的,因为它们在生物学研究和不对称催化中的广泛应用。在这里,我们介绍了在手性胺1经由三烯胺类物质的介导(三烯胺催化)的情况下,含磷的亲二烯体和2,4-二烯之间的不对称Diels-Alder环加成反应。以优异的对映选择性(高达99%ee)和良好至高非对映选择性(高达> 19:1)有效地构建了一系列稠密官能化的膦酰基环己烯衍生物。