Sulfone Group as a Versatile and Removable Directing Group for Asymmetric Transfer Hydrogenation of Ketones
作者:Vijyesh K. Vyas、Guy J. Clarkson、Martin Wills
DOI:10.1002/anie.202004658
日期:2020.8.17
The sulfone functional group has a strong capacity to direct the asymmetric transfer hydrogenation (ATH) of ketones in the presence of [(arene)Ru(TsDPEN)H] complexes by adopting a position distal to the η6‐arene ring. This preference provides a means for the prediction of the sense of asymmetric reduction. The sulfone group also facilitates the formation of a range of reduction substrates, and its
砜官能团具有通过采用一位置远离η直接酮的不对称转移氢化(ATH)在[(芳烃)的Ru(TsDPEN)H]复合物的存在强烈的容量6 -arene环。这种偏好为预测不对称还原感提供了一种手段。砜基团也促进了一系列还原底物的形成,并且其容易地去除提供了对映体富集的醇的途径,否则,通过相应的酮的直接ATH很难制备对映体富集的醇。