INFLUENCE OF VARIOUS PARAMETERS ON THE SELECTIVITY OF THE PRODUCTION OF ALDEHYDES STARTING FROM ALKENES ISSUED FROM THE BIOMASS AND USING THE CATALYST PRECURSORS RH2(MU-SR)2(CO)2(PA3)2

The effects of solvent, ligand L and R group for the catalyst precursor left bracket Rh//2( mu -SR)//2(CO)//2L//2 right bracket and of the allyl benzene (estragole, eugenol, eugenol methyl ether and safrole) on the yields, rates and regioselectivities of the substrate conversion into aldehydes have been examined. The reactions can be performed in 90 min at 80 degree C and 5 bars of a CO/H//2 mixture to give up to 95% of the expected aldehydes with complete selectivity. Polar but noncoordinating solvents are preferable.