1 research outputs found
Carboxyl Graphene as a Superior Support for Bulky Ruthenium-Based Olefin Metathesis Catalyst
A Hoveyda-type catalyst decorated
with two quaternary ammonium
tags was synthesized and noncovalently grafted on SiO<sub>2</sub>,
SBA-15, and on carboxyl graphene. A comparative study showed that
the efficiency of the dual-anchored heterogeneous catalysts was highly
dependent on the properties of the supporting material with graphene
outperforming silicate supports. The graphene-immobilized complex
exhibited excellent efficiency reflected in turnover numbers obtained
in ring-closing metathesis and in self-metathesis of 1-decene. Importantly,
the solid-supported catalyst assured increased recyclability with
no ruthenium leaching as confirmed by inductively coupled plasma mass
spectrometry