Copper-Catalyzed Asymmetric Radical 1,2-Carboalkynylation of Alkenes with Alkyl Halides and Terminal Alkynes
作者:Xiao-Yang Dong、Jiang-Tao Cheng、Yu-Feng Zhang、Zhong-Liang Li、Tian-Ya Zhan、Ji-Jun Chen、Fu-Li Wang、Ning-Yuan Yang、Liu Ye、Qiang-Shuai Gu、Xin-Yuan Liu
DOI:10.1021/jacs.0c03130
日期:2020.5.20
inhibition of the undesired Glaser coupling side reaction. The substrate scope is broad, covering (hetero)aryl-, alkynyl-, and aminocarbonyl-substituted alkenes, (hetero)aryl and alkyl as well as silyl alkynes, and tertiary to primary alkyl radical precursors with excellent functional group compatibility. Facile transformations of the obtained chiral alkynes have also been demonstrated, highlighting
已开发出一种铜催化的烯烃分子间三组分不对称自由基 1,2-碳炔基化,可直接从容易获得的烷基卤化物和末端炔烃中直接获得各种手性炔烃。金鸡纳生物碱衍生的多齿 N,N,P-配体的利用对于铜通过温和氧化前体有效产生自由基和有效抑制不需要的 Glaser 偶联副反应至关重要。底物范围广泛,涵盖(杂)芳基-、炔基-和氨基羰基-取代的烯烃、(杂)芳基和烷基以及甲硅烷基炔烃,以及具有优异官能团兼容性的叔至伯烷基自由基前体。所获得的手性炔烃的轻松转化也已被证明,