A Highly Selective Ethylene Tetramerization Catalyst

A Highly Selective Ethylene Tetramerization Catalyst

Small change, big difference: The introduction of an additional CH2 group into the bridge of ligands with two P/N units leads to a different selectivity of the corresponding chromium‐based catalysts. Whereas 1 produces an ethylene trimerization system, 2 provides an unprecedented ethylene tetrameriz...

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Veröffentlicht in:Angewandte Chemie International Edition 2012-02, Vol.51 (6), p.1366-1369
Hauptverfasser: Shaikh, Yacoob, Albahily, Khalid, Sutcliffe, Matthew, Fomitcheva, Valeria, Gambarotta, Sandro, Korobkov, Ilia, Duchateau, Robbert
Format: Artikel
Sprache:eng
Schlagworte:
1-octene
Bridges (structures)
Catalysts
chromium
Ethylene
Ligands
oligomerization
Purity
Selectivity
tetramerization
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Beschreibung
Zusammenfassung:Small change, big difference: The introduction of an additional CH2 group into the bridge of ligands with two P/N units leads to a different selectivity of the corresponding chromium‐based catalysts. Whereas 1 produces an ethylene trimerization system, 2 provides an unprecedented ethylene tetramerization system that produces 1‐octene with high purity and little or no polymer side products (see scheme; DMAO=Me3Al‐depleted methylaluminoxane).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201106517