Hydroformylation process using triarylphosphine and bisphosphine monooxide ligands
AssigneeUnion Carbide Corporation
InventorsAnthony G. Abatjoglou, David R. Bryant
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Abstract
A rhodium catalyzed hydroformylation process carried out in the presence of free triarylphosphine ligand and free organic tertiary bisphosphine monooxide ligand, and catalytic precursor solutions for said process.
Claims7
A process for producing aldehydes comprising of hydroformylating an olefinically unsaturated compound with carbon monoxide and hydrogen in a hydroformylation reaction medium containing a rhodium complex catalyst, free triarylphosphine ligand and free organic tertiary bisphosphine monooxide ligand having the general formula ##STR12## wherein Ar represents an identical or different substituted or unsubstituted aryl radical, each R.sub.1, R.sub.2 and R.sub.3 group represents an identical or different substituted or unsubstituted monovalent hydrocarbon radical and Y represents a divalent bridging group;
- and wherein the mole ratio of free triarylphosphine ligand to free bisphosphine monooxide ligand present in said reaction medium ranges from about 2:1 to about 30 to 1.
Dependencies are inferred from the claim text.