title: Green Metathesis Chemistry Great Challenges in Synthesis, Catalysis and Nanotechnology series: NATO Science for Peace and Security Series A: Chemistry and Biology editors: Valerian Dragutan, Albert Demonceau, Ileana Dragutan, Eugene Sh. Finkelshtein publisher: Springer city: Dordrecht year: 2010 first page: 89 last page: 100 isbn: 978-90-481-3431-1 (Print) 978-90-481-3433-5 (Online) doi: 10.1007/978-90-481-3433-5_8
Abstract: In this chapter, we summarize the main achievements of our group toward the development of easily accessible, highly efficient ruthenium-arene catalyst precursors for olefin metathesis. Major advances in this field are presented chronologically, with an emphasis on catalyst design and mechanistic details. The first part of this survey focuses on monometallic complexes with the general formula RuCl2(p-cymene)(L), where L is a phosphine or N-heterocyclic carbene ancillary ligand. In the second part, we disclose recent developments in the synthesis and catalytic applications of homobimetallic ruthenium-arene complexes of generic formula (p-cymene)Ru(μ-Cl)3RuCl(η2-C2H4)(L) and their derivatives resulting from the substitution of the labile ethylene moiety with vinylidene, allenylidene, or indenylidene units.
b>Keywords: Allenylidene Ligand, Homogeneous Catalysis, Indenylidene Ligand, N-Heterocyclic Carbene, Phosphine Ligand, Vinylidene Ligand