Hydroformylation with unmodified rhodium catalysts in...

Details Hydroformylation with unmodified rhodium catalysts in... Hydroformylation with unmodified rhodium catalysts in...

C - Chemistry, Metallurgy

07

C

C07C 45/50 (2006.01) B01J 31/16 (2006.01) C07B 41/06 (2006.01) C07C 45/80 (2006.01) C07C 47/02 (2006.01) C07C 57/30 (2006.01) C07C 67/293 (2006.01) C07C 67/343 (2006.01) C07C 403/08 (2006.01)

Patent

CA 2297455

The invention relates to a method for producing oxo products by hydroformylation of substrates with C=C double bonds, using unmodified rhodium catalysts in a reaction mixture consisting essentially of the substrates, the catalyst and carbon dioxide in a supercritical state (scCO2). The invention especially relates to methods of this kind for producing products containing substantial parts of branched i-oxo products. The invention further relates to methods of this kind for the hydroformylation of substrates not corresponding to the general formula C2H2n. The invention also relates to said methods in which the product and catalyst are separated using the special solubilizing properties of scCO2.

L'invention concerne des procédés permettant d'obtenir des produits oxo par hydroformylation de substrats avec des liaisons doubles C=C à l'aide de catalyseurs de rhodium non modifiés dans un mélange réactionnel comprenant principalement les substrats, le catalyseur et le dioxyde de carbone à l'état surcritique (scCO¿2?). L'invention concerne notamment des procédés de ce type pour obtenir des produits contenant des parts essentielles de produits i-oxo. L'invention concerne en outre des procédés de ce type d'hydroformylation de substrats ne correspondant pas à la formule générale C¿2?H¿2?n. L'invention concerne de plus des procédés précités selon lesquels la séparation du produit et du catalyseur s'effectue à l'aide des propriétés solubilisatrices spéciales du scCO¿2?.

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