LIGANDS AND CATALYST SYSTEMS FOR THE OLIGOMERIZATION OF OLEFINIC MONOMERS

The present invention relates to a ligand having the general formula (I) : (R1) 2P-P(R1)m(R2)n=N(R3) (I) wherein R3 is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof;...

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Bibliographische Detailangaben
Hauptverfasser:	ON, QUOC AN, DE BOER, ERIC JOHANNES MARIA, VAN DER HEIJDEN, HARRY, VAN ZON, ARIE, SMIT, JOHAN PAUL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a ligand having the general formula (I) : (R1) 2P-P(R1)m(R2)n=N(R3) (I) wherein R3 is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R1 groups are independently selected from an optionally substituted aromatic group bearing a polar substituent on at least one of the ortho-positions; and the R2 groups are independently selected from hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl groups with the proviso that when the group is aromatic it does not contain a polar substituent at any of the ortho-positions, with the proviso that m is 0 or 1, n is 1 or 2 and the total of m + n is 2. The present invention also relates to catalyst systems and a process for the simultaneous trimerization and tetramerization of olefinic monomers using said ligands.