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US 12,503,418 B2Granted
Process for the preparation of polycyclic aliphatic dialdehydes
AssigneeOxea GmbH
InventorDennis Vogelsang
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AssigneeOxea GmbH
InventorDennis Vogelsang
Estimating the term…
The present invention relates to a process for the preparation of polycyclic aliphatic dialdehydes by hydroformylation of polycyclic aliphatic diolefins in the presence of synthesis gas over an organophosphorus ligand modified metal catalyst system having a transition metal of the 8th-10th subgroup, wherein the hydroformylation is carried out by means of a water-soluble diphosphine or triarylphosphine complex catalyst at a pressure of greater than or equal to 0.5 MPa and less than or equal to 10 MPa and at a temperature of greater than or equal to 70° C. and less than or equal to 150° ° C. in a homogeneous liquid reaction phase, the homogeneous liquid phase comprising at least one non-aqueous solvent, diolefin and/or mono- and/or dialdehydes thereof as reaction products and an aqueous catalyst solution, the proportions of these components in the solution being controlled so as to obtain a single-phase solution under the reaction conditions.
Process for the preparation of polycyclic aliphatic dialdehydes by hydroformylation of polycyclic aliphatic diolefins in the presence of synthesis gas over a metal catalyst system modified with organophosphorus ligands with a transition metal of the 8th-10th subgroup, characterized in that the hydroformylation is carried out by means of a water-soluble diphosphine or triarylphosphine complex catalyst at a pressure of greater than or equal to 0.5 MPa and less than or equal to 10 MPa and at a temperature of greater than or equal to 70° C. and less than or equal to 150° C. in a homogeneous liquid reaction phase, the homogeneous liquid phase comprising at least one non-aqueous solvent, olefins and/or their mono-and/or dialdehydes as reaction products and an aqueous catalyst solution, the mass ratios of these components in the solution being controlled so as to obtain a single-phase solution under the reaction conditions.
Dependencies are inferred from the claim text.