A novel NHC-catalyzed three-component domino strategy to access high functionalized cis-ε-ketoesters with excellent yields (up to 98%) and high stereoselectivities (up to 20â:â1) is documented. The title domino reactions are atom economical and work on a broad range of substrates. The relative stereochemistry could be explained by a cascade crossed-benzoin/oxy-Cope rearrangement/esterification process. The thus-obtained products are of potential synthetic value in the drug research and combinatorial chemistry.
报道了一种新颖的NHC催化三组分多米诺策略,用于获得高功能化的顺-ε-
酮酯,产率高达98%,立体选择性高达20:1。这些多米诺反应具有原子经济性,适用于广泛的底物。相对立体
化学可通过级联交叉苯佐因/氧-科普重排/酯化过程进行解释。所获得的产品在药物研究和组合
化学中具有潜在的合成价值。