HYDROFORMYLATION OF ETHYLENE CATALYZED BY HOMOGENEOUS METAL CLUSTERS

This paper deals with a study of hydroformylation of ethylene catalyzed by homoge-neous metal clusters.〔PhCH2Me3N〕〔FeCo3（CO）12〕and〔PhCH2Me3N〕〔RuCO3（CO）12〕show high catalytic activity for the hydroform ylation of ethylene compared with YCCo3（CO）9,CO4（CO）10（PPh）2,Co2（CO）6（PBu3）2,and Fe2（CO）4（C5H5）2.The reacton rate ofheteronuclear clusters is faster than that with homonuclear clusters.The effect of tempera-ture and pressure on hydroformylation of ethylene with〔PhCH2Me3〕〔FeCo3（CO）12〕ascatalyst was studied.The experimental results.show that the conversion of ethylene exceeds90% with a selectivity up to 95% at temperature 130℃ and pressure 3.9 MPa.When studiedwith high pressure in situ infrared spectroscopic method,PhCCo3（CO）9 was found to havehigher thermostability than 〔PhCH2Me3N〕〔FeCo3（CO）12〕.

This paper deals with a study of hydroformylation of ethylene catalyzed by homogeneous metal clusters. [PhCH2Me3N][FeCo3(CO)12] and [PhCH2Me3N][RuCo3(CO)12] show high catalytic activity for the hydroformylation of ethylene compared with YCCo3 (CO)9, Co4(CO)10(PPh)2, Co2(CO)6(PBu3)2, and Fe2(CO)4(C5H5)2. Thereacton rate of heteronuclear clusters is faster than that with homonuclear clusters.The effect of temperature and pressure on hydroformylation of ethylene with [PhCH2Me3N] [FeCo3(CO) 12] as catalyst was studied. The experimental results, show that the conversion of cthylene exceeds 90% with a selectivity up to 95% at temperature 130℃ and pressure 3.9 MPa. When studied with high pressure in situ infrared spectroscopic method, PhCCo3(CO)9 was found to have higher thermostability than [PhCH2Me3N] [FeCo3 (CO) 12].