abstract
Condensation adducts of the Ni(II) and Cu(II) complexes of beta-amino-meso-tetraphenylporphyrin with dimethyl acetylenedicarboxylate (DMAD) and diethyl ethoxymethylenemalonate were converted into the corresponding esters of pyridinone-fused porphyrins by using three different cyclization protocols: conventional heating, microwave irradiation, and Eaton's reagent. High yields in a short period of time were obtained by using file microwave-irradiation protocol under closed-vessel conditions. The structure of the copper(II) complex of pyridinone-fused porphyrin was confirmed by X-ray crystallography.
keywords
SENSITIZED SOLAR-CELLS; MESO-TETRAPHENYLPORPHYRIN; ANTIBACTERIAL ACTIVITY; CATALYZED AMIDATION; EFFICIENT SYNTHESIS; QUINOLONE; DERIVATIVES; 4-QUINOLONES; CYCLIZATION; INHIBITORS
subject category
Chemistry
authors
Silva, AMG; Castro, B; Rangel, M; Silva, AMS; Brandao, P; Felix, V; Cavaleiro, JAS
our authors
Paula Cristina Ferreira da Silva Brandão
Assistant Researcher
Vítor Félix
Associate Professor with AggregationGroups
1 - inorganic functional nanomaterials and organic-inorganic hybrids
6 - computer simulation and multiscale modeling
acknowledgements
Thanks are due to 'Fundacao para a Ciencia e a Technologie-FEDER' for funding the Aveiro Research Unit - QOPNA and the project POCI/QUI/56214/2004. We also thank CEM for making available to LIS a CEM Discover microwave reactor.