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: 3 last page: 16 isbn: 978-90-481-3431-1 (Print) 978-90-481-3433-5 (Online) doi: 10.1007/978-90-481-3433-5_1
Abstract: Although ruthenium initiators currently available for alkene metathesis are endowed with many beneficial properties, there is still room for improvement and many research groups are actively pursuing the quest for the next generation of alkene metathesis catalysts. The present contribution aims at providing a critical survey of some of the most significant achievements accomplished toward this goal during the last few years. New ligands and complexes designed to achieve the appropriate balance between electronic and steric properties of the ruthenium active centres are depicted, and their stability, activity, and chemoselectivity are briefly discussed.
Keywords: Alkylidene Ligand, Arene Ligand, Grubbs Catalyst, Hoveyda-Grubbs Catalyst, Indenylidene Ligand, N-Heterocyclic Carbene, Phosphine Ligand