High <i>Trans</i> Kinetic Selectivity in Ruthenium-Based Olefin Cross-Metathesis through Stereoretention
作者:Adam M. Johns、Tonia S. Ahmed、Bradford W. Jackson、Robert H. Grubbs、Richard L. Pederson
DOI:10.1021/acs.orglett.6b00031
日期:2016.2.19
controlled, highly trans-selective (>98%) olefin cross-metathesis reaction is demonstrated using Ru-based catalysts. Reactions with either trans or cis olefins afford products with highly trans or cis stereochemistry, respectively. This E-selective olefin cross-metathesis is shown to occur between two trans olefins and between a trans olefin and a terminal olefin. Additionally, new stereoretentive catalysts
使用Ru基催化剂证明了第一个动力学控制的,高反式选择性(> 98%)的烯烃交叉复分解反应。与反式或顺式烯烃的反应分别提供具有高度反式或顺式立体化学的产物。该E-选择性烯烃交叉复分解显示为发生在两个反式烯烃之间以及反式烯烃与末端烯烃之间。另外,已经合成了新的立体保持催化剂以提高反应性。