Synthesis of functionalised N-heterocyclic carbene ligands bearing a long spacer and their use in olefin metathesis
作者:Wioletta Kośnik、Karol Grela
DOI:10.1039/c3dt33010a
日期:——
ligand precursors has been developed. These tagged NHC ligands can be used to obtain a homogeneous Hoveyda-type catalyst (19) containing a quaternaryammonium group on a C-8 long spacer. Products of olefinmetathesis reactions promoted by complex 19 can be readily purified from Ru-residues by filtration of the reaction mixture through a small amount of silica gel.