[EN] RUTHENIUM OLEFIN METATHESIS CATALYSTS BEARING N-HETEROCYCLIC CARBENE LIGANDS WITH SUBSTITUTED BACKBONE [FR] CATALYSEURS DE MÉTATHÈSE D'OLÉFINES À BASE DE RUTHÉNIUM PORTANT DES LIGANDS CARBÈNES N-HÉTÉROCYCLIQUES À SQUELETTE SUBSTITUÉ
[EN] RUTHENIUM OLEFIN METATHESIS CATALYSTS BEARING N-HETEROCYCLIC CARBENE LIGANDS WITH SUBSTITUTED BACKBONE [FR] CATALYSEURS DE MÉTATHÈSE D'OLÉFINES À BASE DE RUTHÉNIUM PORTANT DES LIGANDS CARBÈNES N-HÉTÉROCYCLIQUES À SQUELETTE SUBSTITUÉ
Olefin Metathesis Catalyst: Stabilization Effect of Backbone Substitutions of N-Heterocyclic Carbene
作者:Cheol K. Chung、Robert H. Grubbs
DOI:10.1021/ol800824h
日期:2008.7.3
Ruthenium olefin metathesis catalysts bearing an N-phenyl-substituted N-heterocyclic carbene (NHC) ligand that are resistant to decomposition through C-H activation have been prepared and tested in ring closing metathesis (RCM), cross metathesis (CM), and ROMP reactions. The N,N '-diphenyl-substituted NHC complex proved to be one of the most efficient catalysts in RCM to form tetrasubstituted olefins.