Hydroformylation of Mixed Octenes Using Rhodium–Bulky Phosphonite Complexes with Excellent Catalytic Activity and Stability

Rhodium catalyst liganded with tetrakis-(2,4-di-t-butylphenyl)-4,4ʹ-biphenylphosphonite exhibited an excellent catalytic activity as well as stability for the hydroformylation of mixed olefins, especially butene dimer.