Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1993-10-21
1995-08-08
Pao, Asok
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502103, 502104, 502122, 502168, 502208, 502215, 502216, B01J 3100
Patent
active
054398622
ABSTRACT:
The present invention relates to a catalyst suitable for oligomerization of olefins which is prepared by a process which comprises reacting a catalyst precursor ligand having a formula ##STR1## wherein R.sub.1 and R.sub.2 each independently is an alkyl, alkoxy, aryl, or aryloxy group having from about 1 to about 20 carbon atoms, with the proviso that R.sub.1 and R.sub.2 are not both aryl, or R.sub.1 and R.sub.2 together form a divalent hydrocarbon moiety, and X is 1,2-arylene, O--CH.sub.2, S--CH.sub.2, or Se--CH.sub.2 with a deprotonation source, a transition metal compound and a catalyst activator. The invention further relates to an oligomerization process utilizing this catalyst.
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J. Am. Chem. Soc. 1981, 1234-1235 "A Stable Monocyclic Triarylalkoxy P-H Phosphorane, a 10-P-5 Species with an Apical P-H Bond, and Its Conjugate Base, a Phosphoramide" Michael R. Ross and J. C. Martin.
Irzinski E. D.
Pao Asok
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