(Aminophenyl)porphyrins as precursors for the synthesis of porphyrin-modified siloxanes


The present research reports the efficient synthesis of mono- and di-(aminophenyl)porphyrins and their metalation with Zn(II) using microwave irradiation. The subsequent reaction of amino-functionalized porphyrins with siloxane moieties bearing epoxy or carboxyl functional groups provided four new porphyrin-modified siloxanes. The structure of the resulting derivatives was established by 1H-NMR and MALDI-TOF-MS. The optical properties of the porphyrin chromophores were preserved, as proven by comparing the absorption and emission spectra of the initial porphyrins to those of the porphyrin-modified siloxanes.


José Almeida, Maria E. Fortuna, Lucia Pricop, Andrei Lobiuc, Andreia Leite, André M. N. Silva, Rodrigo P. Monteiro, Maria Rangel, Valeria Harabagiu, Ana M. G. Silva

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