Tandem ROMP−Hydrogenation with a Third-Generation Grubbs Catalyst
Journal of the American Chemical Society2007Vol. 129(14), pp. 4168–4169
Citations Over TimeTop 10% of 2007 papers
Abstract
Tandem ROMP−hydrogenation enables efficient access to saturated, functionalized “ROMP polyolefins”. Of the Grubbs-class initiators 1−3, only third-generation catalyst 3 enables efficient ROMP of sterically demanding norbornenes with precise specification of chain lengths. Unlike 1 and 2, however, 3 decomposes rapidly during subsequent hydrogenation. By trapping the propagating species with PCy3 immediately following ROMP, we generate a Ru-terminated chain identical to that formed from 2 and exhibiting equivalent hydrogenation activity. The remarkable ROMP efficiency of 3 can thus be integrated with the high hydrogenation activity of 2, providing efficient access to chain-length-precise, functionalized polyolefins.
Related Papers
- → Grubbs’ and Schrock’s Catalysts, Ring Opening Metathesis Polymerization and Molecular Brushes—Synthesis, Characterization, Properties and Applications(2019)74 cited
- → Synthesis, Structure, and Reactivity of Cationic Ruthenium(II) Carbene Complexes with Bulky Chelating Bisphosphines: Design of Highly Active Ring Opening Metathesis Polymerization (ROMP) Catalysts(2004)55 cited
- → Alkene Metathesis – A Tool for the Synthesis of Conjugated Polymers(2012)45 cited
- → Synthesis of Metal-containing Polymers via Ring Opening Metathesis Polymerization (ROMP). Part I. Polymers Containing Main Group Metals(2007)31 cited
- → Formation and degradation of 1,4‐polybutadiene via metathesis: new results concerning cyclic oligomers(1995)26 cited