Highly Efficient and Recyclable Polymer-Bound Catalyst for Olefin Metathesis Reactions
作者:Stefan Randl、Nicole Buschmann、Stephen J. Connon、Siegfried Blechert
DOI:10.1055/s-2001-17463
日期:——
Polymer supported ruthenium alkylidene catalysts 6 and 8 have been prepared and for the first time applied to cross metathesis reactions with electron deficient alkenes. These robust complexes are re-usable, highly active and tolerate a wide variety of functional groups.
developed to perform olefin metathesis in roomtemperatureionicliquids (RTILs). High level of recyclability combined with a high reactivity were obtained in the ring-closing metathesis (RCM) of a variety of di- or tri-substituted and/or oxygen-containing dienes. Extremely low residual ruthenium levels were detected in the RCM products (average of 7.3 ppm per run). Several examples of olefin cross-metathesis