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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• 作者：Fabio da Silva Mir ; a ; Aline Maria Signori ; Juliano Vicente ; Bernardo de Souza ; Jacks  ; Patrick Priebe ; Bruno Szpoganicz ; Norberto Sanches Gonç ; alves ; Ademir Neves
• 关键词：1 ; 10-Phenanthroline-5 ; 6-dione ; dppz ; dpq ; Tetraazanaphthacene ; B3LYP
• 刊名：Tetrahedron
• 出版年：2008
• 出版时间：26 May 2008
• 年：2008
• 卷：64
• 期：22
• 页码：5410-5415
• 全文大小：391 K

文摘

Three new ,′-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 dipyrido[3,2-f:2′,3′-h]quinoxalino[2,3-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.