Hydroformylation: a versatile tool for the synthesis of new β-formyl-metalloporphyrins |
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Authors: | Andreia PeixotoMariette M Pereira MGraça PMS NevesArtur MS Silva José AS Cavaleiro |
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Abstract: | Formyl derivatives of protoporphyrin-IX dimethyl ester metal complexes 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 was carried out after their derivatisation into acetals. |
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Keywords: | formylporphyrin protoporphyrin-IX rhodium hydroformylation |
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