Synthesis of substituted dipyrido[3,2-a:2′,3′-c]phenazines and a new heterocyclic dipyrido[3,2-f:2′,3′-h]quinoxalino[2,3-b]quinoxaline |
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Authors: | Fabio da Silva Miranda |
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Institution: | Departamento de Química, Universidade Federal de Santa Catarina, CP-476, 88040-900 Florianópolis, SC, Brazil |
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Abstract: | Three new α,α′-diimine ligands were synthesized based on condensation of 1,10-phenanthroline-5,6-dione with 1,2-phenylenediamine derivatives using different approaches. All compounds were fully characterized by IR, 1H and 13C NMR, UV-visible, and MS spectroscopies. We report the first example of a dipyrido3,2-f:2′,3′-h]quinoxalino2,3-b]quinoxaline, which exhibits a strong absorption at 430 nm and an interesting electrochemical behavior. These new molecules may have biological potential and are of synthetic and technological importance. |
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Keywords: | 1 10-Phenanthroline-5 6-dione dppz dpq Tetraazanaphthacene B3LYP |
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