Atroposelective Catalytic Asymmetric Allylic Alkylation Reaction for Axially Chiral Anilides with Achiral Morita–Baylis–Hillman Carbonates
作者:Shou-Lei Li、Chen Yang、Quan Wu、Han-Liang Zheng、Xin Li、Jin-Pei Cheng
DOI:10.1021/jacs.8b06014
日期:2018.10.10
A highly efficient method to access axially chiral anilides through asymmetric allylic alkylation reaction with achiral Morita-Baylis-Hillman carbonates by using a biscinchona alkaloid catalyst was reported. Through the atroposelective approach, a broad range of axially chiral anilide products with different acyl groups, such as substituted phenyl, naphthyl, alkyl, enyl, styryl, and benzyl, were generated
报道了一种通过使用双金鸡纳生物碱催化剂与非手性 Morita-Baylis-Hillman 碳酸酯的不对称烯丙基烷基化反应获得轴向手性苯胺的高效方法。通过阻变选择性方法,以非常好的收率、中等至极好的顺式:反式比率生成了范围广泛的具有不同酰基的轴向手性苯胺产物,例如取代的苯基、萘基、烷基、烯基、苯乙烯基和苄基,以及良好的对映选择性。该反应可以放大,并且轴向手性苯胺的合成效用通过转化得到了证明。此外,引入线性自由能关系分析来研究反应。