Exxonmobil Research and Engineering Company

Exxon Research and Engineering Company

Rutgers, the State University of New Jersey

Chevron U.s.a. Inc.

Exxonmobil Chemical Patents Inc.

Exxon Chemical Patents, Inc.

Exxonmobile Research and Engineering Company

Robert Timothy Stibrany

Abhimanyu Onkar Patil

Smita Kacker

Sergiu M Gorun

Donald N Schulz

Stephen Zushma

Alan Stuart Goldman

Joseph Anthony Sissano

Lisa Saunders Baugh

Enock Berluche

Michael Gerard Matturro

Robert James Saxton

Thomas H Vanderspurt

Oleg Mironov

George W Schriver

Jeffrey Evans Bond

William L Schinski

Christian Peter Mehnert

Sergiu Mircea Gorun

Lisa Saunders Boffa

Jihad Mohammed Dakka

Baoshan Zhang

Grayson Hall Via

Provided is a Group 9 novel metal catalyst complex further comprising a ketone-containing cocatalyst. The metal catalyst complex is useful in generating olefins from alkanes with great efficiency. In one embodiment, provided is an iridium catalyst complex useful in the dehydrogenation of alkanes comprising a ketone-containing cocatalyst and iridium complexed with a tridentate ligand. Also provided is a novel dehydrogenation method which utilizes the catalyst composition. In other embodiments, a novel process for preparing oligomers from alkanes utilizing the catalyst composition is provided.

Catalyst complex and use thereof in alkane oligomerization

Provided is a novel iridium catalyst complex which is useful in the dehydrogenation of alkanes. The iridium complex comprises the metal iridium atom complexed with a benzimidazolyl-containing ligand. The iridium atom can be coordinated with the nitrogen atoms in the benzimidazolyl-containing ligand to form an NCN pincer ligand complex. In another embodiment, the iridium catalyst is used, with or without a co-catalyst, in a dehydrogenation reaction converting alkanes to olefins. The reaction can be in a closed or open system, and can be run in a liquid or gaseous phase.

Iridium catalyst complexes and C&#x2014;H bond activated products therefrom

Provided is a process for preparing oligomers from an alkane. The process comprises (a) contacting an alkane under dehydrogenation conditions in the presence of a dehydrogenation catalyst such as an iridium catalyst complex comprising iridium complexed with a benzimidiazolyl-containing ligand to form olefins, and (b) contacting the olefins prepared in step (a) under oligomerization conditions with an oligomerization catalyst such as a nickel, platinum or palladium metal catalyst complex comprising the metal complexed with a nitrogen containing bi- or tridentate ligand to prepare oligomers of the olefins, and hydrogenating the olefin oligomers. In one embodiment, the ligands of the catalyst complexes in step (a) and step (b) can be the same.

Process for alkane oligomerization

Provided is a process for effectively and efficiently oxidizing alkyl-containing molecules with the use of an oxygen-containing gas. An iridium metal catalyst complex with the iridium being coordinated with the nitrogen atoms of a benzimidazolyl-containing ligand is used as the catalyst. The process generates alcohols, ketones and aldehydes directly from alkyl-containing molecules and/or aromatic molecules.

Process for the oxidation of hydrocarbons with the use of iridium metal catalyst complexes

A composition having the formula I where Rand Rare independently hydrogen, Cto Clinear and branched alkyl, Cto Ccycloalkyl, aryl, Cto Calkoxy, F, Cl, SO, Cto Cperfluoroalkyl, and N(CH),

Chromium complexes and their use in olefin polymerization

A composition having the formula I where Rand Rare independently hydrogen, Cto Clinear and branched alkyl, Cto Ccycloalkyl, aryl, Cto Calkoxy, F, Cl, SO, Cto Cperfluoroalkyl, and N(CH),Ris independently selected from the group consisting of hydrogen, Cto Clinear and branched alkyl, Cto Ccycloalkyl, aryl, and 2,2,2-trifluoroethyl,A is &#x2014;C(R)&#x2014;, &#x2014;(CH)&#x2014;, &#x2014;(CH)NH(CH)&#x2014;, or &#x2014;CYCY&#x2014;, where Ris a hydrocarbyl, halosubstituted hydrocarbyl, or alkoxy group of from 1 to 12 carbon atoms, x is an integer from 1 to 12, and Y is halogen,andX is halogen, triflate, acetate, trifluoroacetate, hydride, or tetrafluoroborate.When combined with an activating co-catalyst is useful in polymerizing olefinic monomers.

A non-corrosive process for the preparation of dialkyl carbonate by reacting carbon monoxide, alkanol and an oxygen-containing gas in the presence of a ionic halogen free copper catalyst.

Use of an ionic halide free copper catalyst for the production of dialkyl carbonates

The instant invention provides a late transition metal complex which can be used with an activating cocatalyst to produce polymers and copolymers. The invention also provides methods for polymerizing olefins, as well as copolymers having polar monomers incorporated therein. More specifically, the invention provides a composition having the formula LMXZ, wherein M is selected from the group consisting of Cu, Ag and Au; X is selected from the group consisting of halide, hydride, triflate, acetate, borate, Cthrough Calkyl, Cthrough Calkoxy, Cthrough Ccycloalkyl, Cthrough Ccycloalkoxy, aryl, thiolate, nitrate, sulfate, nitrile, hydroxide and any other moiety into which a monomer can insert; Z is selected from the group consisting of halide, hydride, triflate, acetate, borate, Cthrough Calkyl, Cthrough Calkoxy, Cthrough Ccycloalkyl, Cthrough Ccycloalkoxy, aryl, thiolate, carbon monoxide, nitrate, nitrile, hydroxide, sulfate, olefins, water, any other neutral coordinating ligand and any other moiety into which a monomer can insert; n equals 0, 1 or 2; and L is a multi-dentate nitrogen-containing ligand.

Multi-dentate late transition metal catalyst complexes and polymerization methods using those complexes

The instant invention provides a late transition metal complex which can be used with an activating cocatalyst to produce polymers and copolymers. The invention also provides methods for polymerizing olefins, as well as copolymers having polar monomers incorporated therein. More specifically, the invention provides a composition having the formula LMXZ , wherein M is selected from the group consisting of Cu, Ag and Au; X is selected from the group consisting of halide, hydride, triflate, acetate, borate, C through C alkyl, C through C alkoxy, C through C cycloalkyl, C through C cycloalkoxy, aryl, thiolate, nitrate, sulfate, nitrile, hydroxide and any other moiety into which a monomer can insert; Z is selected from the group consisting of halide, hydride, triflate, acetate, borate, C through C alkyl, C through C alkoxy, C through C cycloalkyl, C through C cycloalkoxy, aryl, thiolate, carbon monoxide, nitrate, nitrile, hydroxide, sulfate, olefins, water, any other neutral coordinating ligand and any other moiety into which a monomer can insert; n equals 0, 1 or 2; and L is a multi-dentate nitrogen-containing ligand.

The invention is a method and catalyst for selectively and efficiently producing short chain linear &agr;-olefins. The method includes contacting olefinic monomers under oligomerization conditions with the catalyst composition which comprises a composition prepared in situ by reacting a nickel compound selected from the group consisting of halides, hydrides, triflates, acetates, borates, C , through C alkyl, C through C alkoxy, C through C cycloalkyl, C through C cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins including diolefins and cycloolefins, and any other moiety into which a monomer can insert and mixtures thereof, with an amine ligand wherein said ligand is a nitrogen-containing ligand having one or more nitrogen atoms. The method also includes contacting olefinic monomers under oligomerization conditions with the catalyst composition wherein said catalyst has the formula LNi(X&prime;)(X) , wherein n equals 0 or 1; X and X&prime; are independently selected from the group consisting of halides, hydride, triflate, acetates, borates, C through C alkyl, C through C alkoxy, C through C cycloalkyl, C through C cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins, and any other moiety into which a monomer can insert; M is selected from the group consisting of nickel, palladium, and platinum and L is a nitrogen-containing bidentate ligand with more than two nitrogen atoms.

Transition metal complexes and oligomers therefrom

The invention provides a novel metal complex which, when used with an activating cocatalyst, provides a novel catalyst composition. The invention also provides a polymerization method which utilizes the catalyst composition to produce polymers and copolymers containing polar monomer groups. More specifically, the invention comprises a composition comprising the formula LMXZ wherein X is selected from the group consisting of halides, hydride, triflate, acetates, borates, C through C alkyl, C through C alkoxy, C through C cycloalkyl, C through C cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins, and any other moiety into which a monomer can insert. M is selected from the group consisting of Cu, Ag, and Au. L is a nitrogen-containing bidentate ligand having more than two nitrogen atoms. Z is a neutral coordinating ligand and n equals 0, 1, or 2.

Late transition metal complexes, their use as catalysts and polymers therefrom

The invention is directed towards the formation of polymers and copolymers using late transition metal polymerization catalyst complexes which are formed in situ. In the first process step of the instant invention, a composition having the formula MXZ is simultaneously contacted with a ligand and an activating cocatalyst. Referring to the formula, M is selected from the group consisting of Cu, Ag, and Au; X is selected from the group consisting of halides, hydride, triflate, acetates, borates, C through C alkyl, C through C alkoxy, C through C cycloalkyl, C through C cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins, and any other moiety into which a monomer can insert; Z is selected from the group consisting of halides, hydride, triflate, acetates, borates, C through C alkyl, C through C alkoxy, C through C cycloalkyl, C through C cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins, a neutral coordinating ligand, and any other moiety into which a monomer can insert; n equals 0, 1 or 2. In the second process step of the instant invention, olefinic monomers are contacted with the activated catalyst composition under polymerization conditions.

Polymerization using late transition metal catalyst complexes formed in situ

The invention is directed towards a composition comprising the formula LMX(X&prime;) wherein n equals 0 or 1; X and X&prime; are independently selected from the group consisting of halides, hydride, triflate, acetates, borates, C through C alkyl, C through C alkoxy, C through C cycloalkyl, C through C cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins, and any other moiety into which a monomer can insert; M is selected from the group consisting of nickel, palladium, and platinum and L is a nitrogen-containing bidentate ligand with more than two nitrogen atoms. The composition possesses a tetrahedral or pseudo-tetrahedral structure. The invention also provides a method for using the composition in conjunction with an activating cocatalyst to form short chain &agr;-olefins.

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Long Valley, NJ, United States of America

Robert Timothy Stibrany