C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/50 (2006.01) C07C 67/31 (2006.01) C07F 15/00 (2006.01) C07F 17/02 (2006.01)
Patent
CA 2671409
Novel bidentate ligands of general formula (I) are described Formula (I): R represents a hydrocarbyl aromatic structure. The substituent(s) Yx on the aromatic structure has a total X=1-n .SIGMA.tYx of atoms other than hydrogen such that x-1-n.SIGMA.tYx is >= 4, where n is the total number of substituent(s) Yx and tYx represents the total number of atoms other than hydrogen on a particular substituent Yx. The groups X1, X2, X3 and X4 are joined to Q1 or Q2 via tertiary carbon atoms to the respective atom Q1 or Q2; and Q1 and Q2 each independently represent phosphorus, arsenic or antimony. A catalyst system and a process for the carbonylation of ethylenically unsaturated compounds utilising the catalyst system is also described.
L'invention concerne de nouveaux ligands bidentates de formule générale (I) : (I), dans laquelle R représente une structure aromatique hydrocarbyle; le ou les substituants Yx présents sur la structure aromatique ont un total x=1-n.SIGMA.tYx d'atomes autres que l'hydrogène de façon à ce que x=1-n.SIGMA.tYx soit >= 4, où n est le nombre total de substituants Yx et tYx représente le nombre total d'atomes autres que l'hydrogène dans un substituant Yx particulier; les groupes X1, X2, X3 et X4 sont reliés à Q1 ou Q2 via des atomes de carbone tertiaires à l'atome Q1 ou Q2 respectif; et Q1 et Q2 représentent chacun indépendamment un atome de phosphore, d'arsenic ou d'antimoine. L'invention concerne également un système catalyseur et un procédé pour la carbonylation de composés à insaturation éthylénique utilisant le système catalyseur.
Butler Ian
Eastham Graham Ronald
Gowan Intellectual Property
Lucite International Uk Limited
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