Experimental Evidence for Large Ring Metallacycle Intermediates in Polyethylene Chain Growth Using Homogeneous Chromium Catalysts
- 30 June 2005
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 127 (29) , 10166-10167
- https://doi.org/10.1021/ja051523f
Abstract
Deuterio-ethylene labeling studies on two homogeneous chromium ethylene oligomerization catalysts show that chain propagation proceeds via metallacyclic intermediates; reactions performed in the presence of 1-nonene show no incorporation of the higher olefin, strongly implicating the involvement of large ring metallacycles.Keywords
This publication has 20 references indexed in Scilit:
- Ethylene Tetramerization: A New Route to Produce 1-Octene in Exceptionally High SelectivitiesJournal of the American Chemical Society, 2004
- Catalytic Oligomerization of Ethylene to Higher Linear α-Olefins Promoted by Cationic Group 4 Cyclopentadienyl-Arene Active Catalysts: A DFT Investigation Exploring the Influence of Electronic Factors on the Catalytic Properties by Modification of the Hemilabile Arene FunctionalityOrganometallics, 2004
- New Chromium Complexes for Ethylene Oligomerization: Extended Use of Tridentate Ligands in Metal-Catalyzed Olefin PolymerizationMacromolecules, 2004
- Mechanistic Studies of the Ethylene Trimerization Reaction with Chromium−Diphosphine Catalysts: Experimental Evidence for a Mechanism Involving Metallacyclic IntermediatesJournal of the American Chemical Society, 2004
- Catalytic Linear Oligomerization of Ethylene to Higher α-Olefins: Insight into the Origin of the Selective Generation of 1-Hexene Promoted by a Cationic Cyclopentadienyl-Arene Titanium Active CatalystOrganometallics, 2003
- High activity ethylene trimerisation catalysts based on diphosphine ligandsElectronic supplementary information (ESI) available: experimental details for catalyst screening runs, together with a typical gas uptake profile. See http://www.rsc.org/suppdata/cc/b2/b201335e/Chemical Communications, 2002
- Donor-Ligand-Substituted Cyclopentadienylchromium(III) Complexes: A New Class of Alkene Polymerization Catalyst. 2. Phosphinoalkyl-Substituted SystemsOrganometallics, 2001
- Selective Trimerization ofα-Olefins with Triazacyclohexane Complexes of Chromium as CatalystsPublished by Wiley ,2000
- The Role of Metallacycles in the Chromium-Catalyzed Trimerization of EthyleneOrganometallics, 1997
- The selective trimerization of ethylene to hex-1-eneJournal of the Chemical Society, Chemical Communications, 1989