Union Carbide Corporation

Rex E Murray

David Robert Bryant

Ernst Billig

Anthony G Abatjoglou

John Michael Maher

John M Mather

An oligomerization or cooligomerization process comprising passing ethylene or a mixture of ethylene and propylene in contact with a catalyst, in the liquid phase.

Phosphine and sulfonate bearing ligands

Transition metal-diorganophosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-diorganophosphite ligand complex compositions, diorganophosphite ligands and transition metal-diorganophosphite catalysts.

Phosphite ligands

Transition metal complex catalyzed reactions

An oligomerization or cooligomerization process comprising passing ethylene or a mixture of ethylene and propylene in contact with a catalyst, in the liquid phase, said catalyst comprising the reaction product of (i) a transition metal compound wherein the transition metal is selected from the group consisting of nickel, chromium, cobalt, iron, and copper, and mixtures thereof and (ii) at least one organophosphorus sulfonate ligand.

Oligomerization to alpha-olefins

An olefin oligomerization/cooligomerization process with a catalyst comprising the reaction product of (1) a transition metal compound selected from the metals Ni, Co, Cr, Fe, Cu, (2) a catalyst activator capable of donating a hydride, alkyl, alkenyl or aryl group when the transition metal has the oxidation state of O or the transition metal compound does not have a hydride, alkyl, alkenyl or aryl group, and (3a) an organophosphorus sulfonate ligand containing one benzene ring with trivalent phosphorus P(III) group and SO.sub.3 M group at ortho-positions, or one benzene ring with CH.sub.2 --P(III) and CH.sub.2 --SO.sub.3 M groups at ortho-positions, or a bridging or fused aromatic ring system with P(III) or CH.sub.2 --P(III) group and SO.sub.3 M or CH.sub.2 --SO.sub.3 M group at adjacent positions on different rings, or any aromatic ring having the P(III) and SO.sub.3 M groups at adjacent positions, where M is H, Group IA or Group IIA metals, quarternary ammonium or phosphonium (NR.sub.4, PR.sub.4) radical, or (3b) a P(III) component connected through

A process for the selective production of bulky alkyldiarylphosphines and unsymmetrical dialkylarylphosphines comprising reacting a first Grignard reagent having a bulky alkyl group with an aryldichlorophosphine and thereafter and without isolating the resulting bulky alkylarylchlorophosphine intermediate, reacting said intermediate with a second Grignard reagent having a different, less bullky alkyl group or an aryl group to provide the product phosphine.

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Charleston, WV, United States of America

Rex E Murray