Hydroformylation: a versatile tool for the synthesis of new β-formyl-metalloporphyrins
作者:Andreia Peixoto、Mariette M. Pereira、M.Graça P.M.S. Neves、Artur M.S. Silva、José A.S. Cavaleiro
DOI:10.1016/s0040-4039(03)01379-0
日期:2003.7
Formylderivatives of protoporphyrin-IX dimethyl ester metalcomplexes were obtained via hydroformylation reactions, catalysed by rhodium–triphenylphosphine complexes. The regioselectivity of the reaction is remarkably dependent on the metal centre of the porphyrin, yielding 100% of the branched aldehyde with zinc(II) complexes and 75% with the nickel(II). The NMR characterisation of the new compounds