Synthesis, Separation and UV/Vis Spectroscopy of Pyrazino??quinoxalino??porphyrazine Macrocycles

Z Musil, P Zimcik, M Miletin, K Kopecky…

Index: Musil, Zbynek; Zimcik, Petr; Miletin, Miroslav; Kopecky, Kamil; Lenco, Juraj European Journal of Organic Chemistry, 2007 , # 27 p. 4535 - 4542

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Citation Number: 14

Abstract

Abstract Unsymmetrical metal-free and zinc complexes of pyrazino-quinoxalino- porphyrazines (PQP) bearing eight diethylamino groups have been synthesized by statistical tetramerization of 2, 3-bis (diethylamino) quinoxaline-6, 7-dicarbonitrile and 5, 6- bis (diethylamino) pyrazine-2, 3-dicarbonitrile in lithium butanolate. For this purpose, a new heteroatom-substituted quinoxaline precursor, 2, 3-dichloro-6, 7-dicarbonitrile, was ...