Synthesis and properties of 172-phenyl-5,10,15,20-tetraazatribenzo[b,g,l]pyrazino[2,3-q]porphyrin-173(174 H)-one
文摘
172-Phenyl-5,10,15,20-tetraazatribenzo[b,g,l]pyrazino[2,3-q]porphyrin-173(174 H)-one was synthesized for the first time by template cyclotetramerization of 5,7-diphenyl-6H-1,4-diazepine-2,3-dicarbonitrile with phthalonitrile. Its complexation with zinc(II) acetate followed a bimolecular mechanism. Acid-base properties of the resulting zinc complex in benzene-acetic acid were studied, and the stability constant of its monoprotonated (at the meso-nitrogen atom) form was determined.