Enantioselective Palladium-Catalyzed Alkenylation of Trisubstituted Alkenols To Form Allylic Quaternary Centers
作者:Harshkumar H. Patel、Matthew S. Sigman
DOI:10.1021/jacs.6b09649
日期:2016.11.2
In this report, we describe the generation of remote allylic quaternary stereocenters β, γ, and δ relative to a carbonyl in high enantioselectivity. We utilize a redox-relay Heck reaction between alkenyl triflates and acyclic trisubstituted alkenols of varying chain-lengths. A wide array of terminal (E)-alkenyl triflates are suitable for this process. The utility of this functionalization is validated
在本报告中,我们描述了相对于羰基以高对映选择性生成远程烯丙基四元立体中心 β、γ 和 δ。我们利用链烯基三氟甲磺酸酯和不同链长的无环三取代烯醇之间的氧化还原中继 Heck 反应。多种末端 (E)-烯基三氟甲磺酸酯适用于该过程。这种功能化的效用通过产品的转化得到进一步验证,通过简单的有机过程获得远程功能化的手性叔酸、胺和醇产品。