METHOD FOR PREPARING TETRA-(2,3-QUINOXALINO)-PORPHYRAZINE

摘要

FIELD: chemical industry, organic chemistry, chemical technology. ^ SUBSTANCE: invention relates to methods for synthesis of tetrapyrrole macroheterocyclic compounds. Method for synthesis of tetra-(2,3-quinoxalino)-porphyrazine is carried out by heating 2,3-dicyanoquinoxaline to temperature 210-220°C and keeping the formed melt at this temperature for 25-35 min. Invention provides simplifying the method due to diminishing number of technological procedures with simultaneous enhancing the yield of the end product by 1.5-fold. ^ EFFECT: improved preparing method. ^ 1 tbl