<i>Z</i>-Selective Homodimerization of Terminal Olefins with a Ruthenium Metathesis Catalyst
作者:Benjamin K. Keitz、Koji Endo、Myles B. Herbert、Robert H. Grubbs
DOI:10.1021/ja203488e
日期:2011.6.29
The cross-metathesis of terminal olefins using a novel rutheniumcatalyst results in excellent selectivity for the Z-olefin homodimer. The reaction was found to tolerate a large number of functional groups, solvents, and temperatures while maintaining excellent Z-selectivity, even at high reaction conversions.
使用新型钌催化剂进行末端烯烃的交叉复分解,对 Z-烯烃均二聚体具有优异的选择性。研究发现,即使在高反应转化率下,该反应也能耐受大量官能团、溶剂和温度,同时保持优异的 Z 选择性。
Theory-assisted development of a robust and Z-selective olefin metathesis catalyst
作者:Giovanni Occhipinti、Vitali Koudriavtsev、Karl W. Törnroos、Vidar R. Jensen
DOI:10.1039/c4dt00409d
日期:——
A tight interplay between theory and experiment has led to the development of a new, highly Z-selective ruthenium-based olefin metathesis catalyst that can be used in air, with unpurified and non-degassed substrates and solvents, and in the presence of acids.
[EN] IMPROVED OLEFIN METATHESIS CATALYSTS<br/>[FR] CATALYSEURS DE MÉTATHÈSE D'OLÉFINES AMÉLIORÉS
申请人:BERGEN TEKNOLOGIOVERFØRING AS
公开号:WO2017009232A1
公开(公告)日:2017-01-19
The present invention refers to novel ruthenium-based catalysts for olefin metathesis reactions, particularly to fast initiating catalysts having stereoselective properties. In olefin metathesis reactions, the disclosed catalysts provide a high catalytic activity combined with the capability to generate higher yields of the olefin metathesis product.
Pyridine-Stabilized Fast-Initiating Ruthenium Monothiolate Catalysts for <i>Z</i>-Selective Olefin Metathesis
作者:Giovanni Occhipinti、Karl W. Törnroos、Vidar R. Jensen
DOI:10.1021/acs.organomet.7b00441
日期:2017.9.11
Pyridine as a stabilizing donor ligand drastically improves the performance of ruthenium monothiolate catalysts for olefin metathesis in comparison with previous versions based on a stabilizing benzylidene ether ligand. The new pyridine-stabilized ruthenium alkylidenes undergo fast initiation and reach appreciable yields combined with moderate to high Z selectivity in self-metathesis of terminal olefins