Synthesis and Spectral Properties of 6(lH)-Oxopyridine-2,3-dicarboxylic Acid and Metal Porphyrazines Based Thereon

摘要

Oxidation of quinolin-2-ol with potassium permanganate in alkaline medium gave 6(lH)-oxo-pyridine-2,3-dicarboxylic acid.The latter was reacted with urea in the presence of ammonium molybdate and bivalent metal chlorides to obtain the corresponding metal porphyrazines.Phthalocyanine and its structural analogs attract increasing attention due to their wide use in science and engineering.An interesting representative of aza-substituted phthalocyanine analogs is 2,3-tetra-pyridinoporphyrazin and its metal complexes,since some of them have exhibited valuable applied properties.At the same time,there has been no information in the literature on 2,3-tetrapyridinopor-phyrazine derivatives bearing substituents in the pyridine fragments.At the same time,these compounds may be of certain interest.