作者:Meredith S. Eno、Alexander Lu、James P. Morken
DOI:10.1021/jacs.6b03384
日期:2016.6.29
Nickel-catalyzed enantioselective cross-couplings between symmetric cyclic sulfates and aromatic Grignard reagents are described. These reactions are effective with a broad range of substituted cyclic sulfates and deliver products with asymmetric tertiary carbon centers. Mechanistic experiments point to a stereoinvertive SN2-like oxidative addition of a nickel complex to the electrophilic substrate
描述了对称环状硫酸盐和芳香格氏试剂之间的镍催化的对映选择性交叉偶联。这些反应对广泛的取代环硫酸盐有效,并提供具有不对称叔碳中心的产物。机理实验表明,镍络合物在亲电子底物上发生了立体反转的 SN2 样氧化加成反应。