eCite Digital Repository
A survey of pendant donor-functionalised (N,O) phosphine ligands for Cr-catalysed ethylene tri- and tetramerisation
Citation
Suttil, JA and Wasserscheid, P and McGuinness, DS and Gardiner, MG and Evans, SJ, A survey of pendant donor-functionalised (N,O) phosphine ligands for Cr-catalysed ethylene tri- and tetramerisation, Catalysis Science and Technology, 4, (8) pp. 2574-2588. ISSN 2044-4753 (2014) [Refereed Article]
Copyright Statement
Copyright 2014 The Royal Society of Chemistry
Abstract
In this study three classes of ligands are explored for ethylene tri-/tetramerisation in conjunction with chromium and both triethylaluminium (AlEt3) and methylaluminoxane (MAO) co-catalysts. Hydrazine based ligands containing an N–H functionality [PN(NH)P], analogous to Rosenthal's previously reported PNPNH system, show selectivity towards 1-hexene and 1-octene formation in conjunction with AlEt3, and act as PNP tetramerisation analogues when MAO is employed. PNP ligands containing non-protic pendant donor moieties generally show poor activity and selectivity when AlEt3 is employed as an activator, however when MAO is used good activities and selectivities are achieved. n-Propylcyclopentane and 2-propenylcyclopentane, and higher homologues, are produced during catalysis when oxygen is the donor atom. The formation of such products is discussed with respect to the generation of methylenecyclopentane and methylcyclopentane by PNP based tetramerisation catalysts. Simple phosphine ligands containing O–H functionalisation are also explored and it was shown that the catalyst selectivity is highly dependent on both the activator and structural features of the ligand employed.
Item Details
Item Type: | Refereed Article |
---|---|
Research Division: | Chemical Sciences |
Research Group: | Inorganic chemistry |
Research Field: | Transition metal chemistry |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the chemical sciences |
UTAS Author: | Suttil, JA (Mr James Suttil) |
UTAS Author: | McGuinness, DS (Dr David McGuinness) |
UTAS Author: | Gardiner, MG (Associate Professor Michael Gardiner) |
ID Code: | 93793 |
Year Published: | 2014 |
Web of Science® Times Cited: | 28 |
Deposited By: | Chemistry |
Deposited On: | 2014-08-18 |
Last Modified: | 2017-10-25 |
Downloads: | 0 |
Repository Staff Only: item control page