Department of Chemistry, University of California , Irvine, California 92697, United States.
J Am Chem Soc. 2017 Jan 25;139(3):1029-1032. doi: 10.1021/jacs.6b10680. Epub 2017 Jan 11.
We report an enantioselective coupling between α-branched aldehydes and alkynes to generate vicinal quaternary and tertiary carbon stereocenters. The choice of Rh and organocatalyst combination allows for access to all possible stereoisomers with high enantio-, diastereo-, and regioselectivity. Our study highlights the power of catalysis to activate two common functional groups and provide access to divergent stereoisomers and constitutional structures.
我们报告了一种 α-支链醛和炔烃之间的对映选择性偶联反应,可生成毗邻的季碳和叔碳立体中心。Rh 和有机催化剂组合的选择允许以高对映选择性、非对映选择性和区域选择性获得所有可能的立体异构体。我们的研究强调了催化的力量,它可以激活两个常见的官能团,并提供获得不同立体异构体和构象结构的途径。