Hydroformylation of Oct-1-ene

This result is in accordance with virtually all other phosphine- or phosphite-coordinated rhodium hydroformylation catalysts, where an excess of phosphine 

Synthesis, Characterisation and Catalytic Activity of Heterobimetal Complexes 

It is important to note that complexes 1 and 5 are recovered unchanged from the reaction mixture following catalysis, and P NMR spectroscopy of the product solution showed no other phosphorus-containing species present. 

We explored the hydroformylation reaction for monometal model complexes that represent one half of the bimetal catalysts 1 or 5. These tests give us an idea about whether each metal centre is functioning as a conventional mononuclear catalyst or whether there is some cooperativity. Thus the catalytic activity and selectivity of the complexes [RuCl(j/ -Ph2PCH2PPh2)Cp], [RuCl -HC(PPh2)3)Cp] and [ RhCl(CO)2 2] were studied under the same conditions as described above. 

The complexes [RuCl( 2.pjj pcH2PPh2)Cp] and [RuCl /2-HC(PPh2)3 -Cp] are extremely poor hydroformylation catalysts. They showed less than 0.5% conversion of alkene to aldehyde after 30 hours, linear to branched ratios of one or less, and undesirable amounts of alkene isomerisation and hydrogenation products. 

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