Hydroformylation method having improved catalyst stability in reaction
AssigneeLG Chem, Ltd.
InventorsDong-Hyun Ko, Sung-Shik Eom, Moo-Ho Hong, O-Hak Kwon, Jae-Hui Choi, Dae-Chul Kim
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Abstract
Disclosed is a hydroformylation method having improved catalyst stability in a reaction. Advantageously, provided is a hydroformylation method in which a specific α,β-unsaturated carbonyl compound is incorporated during a hydroformylation reaction to prevent alkyl phosphite decomposed from a phosphite ligand from acting as a catalyst poison, thereby improving a yield of reaction and inhibiting decomposition of ligand and catalyst.
Claims9
A hydroformylation method for preparing aldehyde by reacting an olefin-based unsaturated compound with carbon monoxide and hydrogen in the presence of a transition metal-phosphite complex catalyst produced from a transition metal catalyst and a phosphite ligand, wherein the reaction is carried out by further incorporating one or more of compounds represented by the following Formulae 1 to 4:
- (wherein R′ and R″ each independently represent a substituted or unsubstituted alkyl group having 1 to 3 carbon atoms, and R′″ represents a substituted or unsubstituted aryl group having 6 to 12 carbon atoms),
- (wherein Ra represents hydrogen, Rb represents a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and Rc represents hydrogen or an alkyl group)
- (wherein Rd and Re each independently represent a substituted or unsubstituted aryl group having 6 to 12 carbon atoms)
- (wherein Rf and Rg each independently represent hydrogen or an alkyl group).
Dependencies are inferred from the claim text.