| Summary: | Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Pharmaceutical Chemistry and Drug Control Student: Eliška Kučerová Supervisor: PharmDr. Kamil Kopecký, Ph.D. Title of diploma thesis: Dichloroquinoxalinodicarbonitrile - the precursor for quinoxalinoporhyrazines This diploma thesis deals with preparation of 2,3-dichloroquinoxaline-6,7- dicarbonitrile, precursor for synthesis of quinoxalinoporhyrazines. In the theoretical part, the main topic is methodology of preparation of two crucial compounds or their derivatives to obtain the final product. The ways of synthesis of 4,5- diaminophthalonitrile are described in the first part together with advantages and disadvantages of each of them and they are farther debated in the discussion. The second part shows the possibilities of synthesis of various quinoxaline derivatives and emphasizes their positives and negatives. Individual methods are systematically arranged according to character of initial substances of individual reaction and reaction conditions, respectively. The experimental part shows procedures, which were used during processing of this diploma thesis. 2,3-dichloroquinoxaline-6,7-dicarbonitrile was prepared by condensation of 4,5-diaminophthalonitrile and diethyloxalate and by subsequent nucleophilic...
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