Shell Oil Comapny

Lucite International UK Limited

Invista North America S.a.r.l.

Bp Chemicals Limited

Rhodia Operations

Eth Zurich

University of Bristol

Paul Gerard Pringle

Eit Drent

Michael Rolf Eberhard

Renata Helena Van Der Made

Graham Ronald Eastham

Sergio Mastroianni

Mark Waugh

Thomas Philip William Turner

Igor Mikhel

John Glenn Sunley

David John Law

Gad Rothenberg

Hansjörg Grützmacher

Wilhelmus Petrus Mul

Robert Ian Pugh

Marijke De Boer-Wildschut

Jacoba Catherina Suykerbuyk

Ana Maldonado

Monica Carreira Mendez

Cornelia Alida Krom

Manutsavin Charernsuk

Emma Louise Carrington-Smith

Tamara Fanjul Solares

Michael Garland

Jonathan Hopewell

Mark Bispinghoff

A versatile, highly efficient process for the preparation of acylphosphines such as mono- and bisacylphosphines via reaction of phosphines (PHand higher homologues) or silylated phosphines with acylhalides in the presence of at least one lewis acid. Further a novel acyl phosphines obtainable by the process.

Versatile process for the preparation of acylphosphines

A novel bidentate ligand of general formula (I) is described together with a process for the carbonylation of ethylenically unsaturated compounds. The group Xmay be defined as a univalent hydrocarbyl radical of up to 30 atoms containing at least one nitrogen atom having a pKb in dilute aqueous solution at 18&#xb0; C. of between 4 and 14 wherein the said at least one nitrogen atom is separated from the Qatom by between 1 and 3 carbon atoms. The group Xis defined as X, Xor Xor represents a univalent radical of up to 30 atoms having at least one primary, secondary or aromatic ring carbon atom wherein each said univalent radical is joined via said at least one primary, secondary or aromatic ring carbon atom(s) respectively to the respective atom Q. Qand Qeach independently represent phosphorus, arsenic or antimony.

Process for the carbonylation of ethylenically unsaturated compounds, novel carbonylation ligands and catalyst systems incorporating such ligands

The present invention relates to a method for the hydrocyanation of organic ethylenically unsaturated compounds including at least one nitrile function. The invention specifically relates to a method for the hydrocyanation of a hydrocarbon compound including at least one ethylenic unsaturation by a reaction with hydrogen cyanide in a liquid medium and in the presence of a catalyst including a metal element selected from the transition metals and an organophosphorous ligand, the organophosphorous ligand including a compound of general formula (I), where Rand R, which are identical or different, are a linear or branched alkyl radical having 1-12 carbon atoms, which can include heteroatoms, or an optionally substituted aromatic or cycloaliphatic radical that can include heteroatoms, wherein the covalent bond between P and R, and that between P and R, are P&#x2014;C bonds. 

Method for producing nitrile compounds from ethylenically unsaturated compounds

Organophosphorus compounds, catalytic systems comprising a metallic element forming a complex with the organophosphorus compounds and methods of hydrocyanation and of hydroformylation employed in the presence of the catalytic systems are described.

Organophosphorus compounds, catalytic systems comprising said compounds and method of hydrocyanation or of hydroformylation using said catalytic systems

A novel bidentate ligand of general formula (I) is described together with a process for the carbonylation of ethylenically unsaturated compounds. The group Xmay be defined as a univalent hydrocarbyl radical of up to 30 atoms containing at least one nitrogen atom having a pKb in dilute aqueous solution at 18&#xb0; C. of between 4 and 14 wherein the said at least one nitrogen atom is separated from the Qatom by between 1 and 3 carbon atoms. The group Xis defined as X, Xor Xor represents a univalent radical of up to 30 atoms having at least one primary, secondary or aromatic ring carbon atom wherein each said univalent radical is joined via said at least one primary, secondary or aromatic ring carbon atom(s) respectively to the respective atom Q. Qand Qeach independently represent phosphorus, arsenic or antimony. 

A novel bidentate catalytic ligand of general formula (I) is described. R represents a hydrocarbyl aromatic structure having at least one aromatic ring to which Qand Qare each linked, via the respective linking group, if present, on available adjacent atoms of the at least one aromatic ring. The groups Xand Xrepresent radicals joined via tertiary carbon atoms to the respective atom Qand the groups Xand Xrepresent radicals joined via primary, or substituted aromatic ring carbon atom(s) to the respective atom Q. A and B represent an optional lower alkylene linking group. Qand Qeach represent phosphorus, arsenic or antimony. A process for the carbonylation of ethylenically unsaturated compounds comprising reacting the compound with carbon monoxide in the presence of a source of hydroxyl groups, optionally, a source of anions and catalyst system obtainable by combining a metal of Group 8, 9 or 10 or a compound thereof and the bidentate ligand of general formula (I) is also described. 

Organophosphorus compounds are described that belong to the phosphinite-phosphite family. Catalytic systems comprising a metallic element forming a complex with said phosphinite-phosphite compounds and methods of hydrocyanation employed in the presence of said catalytic systems are also described.

Organophosphorus compounds, catalytic systems comprising said compounds and method of hydrocyanation using said catalytic systems

A process for the production of acetic acid by the liquid phase carbonylation of an alcohol and/or a reactive derivative thereof in which there is employed a catalyst comprising a complex of rhodium or iridium with a pincer ligand.

Carbonylation process for the production of acetic acid using metal-pincer ligand catalysts

According to the present invention, there is provided an organophosphine ligand comprising a phosphabicyclohydrocarbyl group in which the phosphorus atom is further substituted with a hydrocarbyl or heterohydrocarbyl moiety containing at least one branch at the &#x3b2;-carbon position. The present invention also provides a catalytic composition for the hydroformylation of an ethylenically unsaturated compound, said catalytic composition comprising i) a source of Group VIII metal cations; and ii) the above ligand. Furthermore, the present invention also provides a process for the hydroformylation of an ethylenically unsaturated compound, said process comprising contacting the ethylenically unsaturated compound with carbon monoxide and hydrogen in the presence the above catalytic composition.

Ligand, catalyst and process for hydroformylation

Process for the telomerization of a conjugated diene, wherein the conjugated diene is reacted with a compound containing an active hydrogen atom and having a formula R'&#x2014;H in the presence of a telomerization catalyst based on: (a) a source of group VIII metal, (b) a bidentate ligand wherein the bidentate ligand has the general formula IRRM-R-MRR&#x2003;&#x2003;(I)wherein Mand Mare independently P, As or Sb; R, R, Rand Rindependently represent a monovalent aliphatic group;or R, Rand Mtogether and/or R, Rand Mtogether independently represent an optionally substituted aliphatic cyclic group with at least 5 ring atoms, of which one is the Mor Matom, respectively;R represents a bivalent organic bridging group; and novel bidentate diphosphines which can be used in this process.

Process for the telomerization of a conjugated diene, catalyst and bidentate ligand useful therein

A process for the carbonylation of an ethylenically unsaturated compound with carbon monoxide and a co-reactant. The carbonylation reaction is carried out in the presence of a novel catalyst involving: wherein Rrepresents a bivalent radical that together with the phosphorus atom to which it is attached is an optionally substituted 2-phospha-tricyclo[3.3.1.1{3,7}]- decyl group or a derivative thereof in which one or more of the carbon atoms are replaced by heteroatoms ('2-PA' group); wherein Rand Rindependently represent univalent radicals of up to 20 atoms or jointly form a bivalent radical of up to 20 atoms; and wherein Aand Aindependently represent optionally substituted alkylene groups and R represents an optionally substituted aromatic group; and,

Process for the carbonylation of an ethylenically unsaturated compound and catalyst therefore

Process for the carbonylation of optionally substituted ethylenically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system. The catalyst system includes In addition a method to prepare such a bidentate diphosphine composition is described.

Process for the carbonylation of ethylenically unsaturated compounds, bidentate diphosphine composition used in this process and a process for preparation of this bidentate diphosphine composition

Process for the telomerization of a conjugated diene, wherein the conjugated diene is reacted with a compound containing an active hydrogen atom and having a formula R'&#x2014;H in the presence of a telomerization catalyst based on: 

Bidentate ligand, catalyst system containing such ligand and a process for the carbonylation of ethylenically or acetylenically unsaturated compounds using such a catalyst system

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Bristol, United Kingdom

Paul Gerard Pringle