Shell Oil Comapny

Nicolaas Meijboom

Johannes A Van Doorn

Richard L Wife

Aart Bartus Van Oort

Arie Van Zon

Harry Van Der Heijden

Eric Johannes Maria De Boer

Johannes J Snel

Eit Drent

Petrus W Van Leeuwen

Henderikus Hyacinthus Deuling

Non-symmetrical ligands of formula (I); bis-aryliminepyridine MXcomplexes comprising a non-symmetrical ligand of formula (I), wherein M is a metal selected from Fe or Co, n is 2 or 3, and X is halide, optionally substituted hydrocarbyl, alkoxide, amide, or hydride; [bis-aryliminepyridine MY.L][NC]complexes, comprising a non-symmetrical ligand of formula (I), wherein Y is a ligand which may insert an olefin, M is Fe or Co, NCis a non-coordinating anion and p+q is 2 or 3, matching the formal oxidation of the metal atom M, L is a neutral Lewis donor molecule and n=0, 1, or 2; and processes for the production of alpha-olefins from ethylene, using said complexes.

Non-symmetrical ligands and catalyst systems thereof for ethylene oligomerization to linear alpha olefins

Ligands and catalyst systems thereof for ethylene oligomerization to linear alpha olefins

Alkali metal di(2-alkoxyphenyl)phosphide is produced in good yield by reaction of alkali metal and the corresponding tri(2-alkoxyphenyl)-phosphine in liquid ammonia.

Preparation of ortho substituted diphenylphosphides

In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid, and a phosphine ligand, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)-2-silapropane, which can be produced with high yield, wherein the 2-silapropane moiety is additionally substituted at the silicon atom with two hydrocarbyl substituents.

Polymerization process

An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.

Benzyl- or allyl- di(polar-substituted-phenyl)phosphines are converted in good yield to the corresponding alkali metal di(polar-substituted-phenyl)phosphide by reaction with alkali metal in liquid ammonia.

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Amsterdam, Netherlands

Nicolaas Meijboom