Catalyst composition for hydroformylation and method for producing aldehyde using the same

A monodentate phosphine ligand catalyst composition for hydroformylation, comprising:

• two types monodentate phosphine ligands of
• (a) a triaryl phosphine ligand represented by the following Chemical Formula 1, and
• (b) a phosphine oxide or phosphine sulfide ligand represented by the following Chemical Formulas 2 or 3;
• and
• a transition metal catalyst,
• in the above Chemical Formula 1,
• R1 to R15 are each independently hydrogen, substituted or unsubstituted C1 to C5 alkyl group;
• and substituted or unsubstituted C1 to C5 alkoxy group;
• and
• when R1 to R15 are substituted by substituents, the substituents are each independently nitro group (—NO2), fluorine (F), chlorine (Cl), bromine (Br) and silyl group (—SiR;
• here, R is hydrogen, alkyl group or alkoxy group;
• in the above Chemical Formula 2,
• R16 and R17 are each independently substituted or unsubstituted C1 to C20 alkyl group;
• substituted or unsubstituted C5 to C20 cyclo alkyl group or cyclo alkenyl group;
• substituted or unsubstituted C6 to C36 aryl group;
• substituted or unsubstituted C1 to C20 hetero alkyl group;
• substituted or unsubstituted C4 to C36 hetero aryl group;
• or substituted or unsubstituted C4 to C36 hetero cyclic group, here, hetero alkyl group, hetero aryl group and hetero cyclic group have each independently at least one atom selected from the group consisting of N, O and S;
• when R16 and R17 are substituted by substituents, the substituents are each independently nitro group (—NO2), fluorine (F), chlorine (Cl), bromine (Br), silyl group (—SiR;
• here, R is hydrogen, alkyl group or alkoxy group), alkoxy group, carboxyl group, carboalkoxy group or C1 to C4 alkyl group;
• X is O or S, when X is O, it is a phosphine oxide and when X is S, it is a phosphine sulfide;
• and
• n is an integer of 1 or 2;
• in the above Chemical Formula 3,
• A is O, S or amine group (NR′;
• here, R′ is hydrogen, alkyl group, cyclo alkyl group, aryl group, hetero alkyl group or hetero aryl group);
• R18 to R25 are each independently hydrogen, substituted or unsubstituted C1 to C5 alkyl group;
• substituted or unsubstituted C1 to C5 alkoxy group, carboalkoxy group, aryloxy group, alkylcarbonyl group, amide group (—CONH), nitro group (—NO2), halogen group, cyano group (—CN), silyl group (—SiR;
• here, R is hydrogen, alkyl group or alkoxy group) or thio group (—SR;
• here, R is hydrogen, alkyl group or alkoxy group);
• and
• X is O or S, when X is O, it is a phosphine oxide and when X is S, it is a phosphine sulfide.