An asymmetric Michael addition/hydroarylation reaction sequence, catalyzed by a sequential catalytic system consisting of a squaramide and a combination of silver and gold salts, provides a new series of cyclic aza-spirooxindole derivatives in excellent yields (up to 94%) and high diastero- and enantioselectivities (up to 7 : 1 dr, up to >99% ee). Computational study has also been performed.
不对称迈克尔加成/加氢芳基化反应序列,由方酰胺和
银盐和
金盐组合组成的连续催化系统催化,提供了一系列新的环状氮杂螺
吲哚衍
生物,其产率优异(高达 94%)和高非对映体- 和对映选择性(高达 7 : 1 dr,高达 >99% ee)。还进行了计算研究。