Regio- and Stereoselective Reductive Coupling of Alkynes and Crotononitrile
作者:Kun Cui、Yan-Lin Li、Gongqiang Li、Ji-Bao Xia
DOI:10.1021/jacs.2c10021
日期:2022.12.21
bearing a stereodefinedtrisubstitutedalkene have been easily synthesized with good to excellent regio- (up to >20:1 rr), stereo- (>20:1 E/Z), and enantioselectivity (up to 98% ee) control under mild conditions. The corresponding nitrile products were smoothly converted into various chiral building blocks. Remarkably, a simple organic base together with water have been utilized as hydrogen sources in this
通过可见光有机光氧化还原钴双催化开发了炔烃和巴豆腈的新区域选择性和立体选择性还原偶联。多种带有立构定义的三取代烯烃的对映体富集的同烯丙基腈很容易合成,具有良好到极好的区域-(高达 >20:1 rr)、立体-(>20:1 E / Z)和对映选择性(高达 98% ee) 在温和条件下控制。相应的腈产物顺利转化为各种手性结构单元。值得注意的是,在这种光诱导还原反应中,一种简单的有机碱与水一起被用作氢源。