Single‐Face/All‐
<i>cis</i>
Arene Hydrogenation by a Supported Single‐Site d
<sup>0</sup>
Organozirconium Catalyst
作者:Madelyn Marie Stalzer、Christopher P. Nicholas、Alak Bhattacharyya、Alessandro Motta、Massimiliano Delferro、Tobin J. Marks
DOI:10.1002/anie.201600345
日期:2016.4.18
The single‐site supported organozirconium catalyst Cp*ZrBz2/ZrS (Cp*=Me5C5, Bz=benzyl, ZrS=sulfated zirconia) catalyzes the single‐face/all‐cis hydrogenation of a large series of alkylated and fused arene derivatives to the corresponding all‐cis‐cyclohexanes. Kinetic/mechanistic and DFT analysis argue that stereoselection involves rapid, sequential H2 delivery to a single catalyst‐bound arene face
单点负载型有机锆催化剂Cp * ZrBz 2 / ZrS(Cp * = Me 5 C 5,Bz =苄基,ZrS =硫酸氧化锆)催化一系列烷基化和稠合芳烃的单面/全顺式加氢反应相应的全顺式环己烷的衍生物。动力学/力学和DFT分析认为,立体选择涉及将H 2快速连续地输送到单个催化剂结合的芳烃面上,而不是任何竞争的分子内芳烃π面互换。