Synthesis of new derivatives of 4-hydroxy-(2H)-phthalazinone and phthalazino-1,4-(2H)(3H)-dione.
N1-Phthaloyl-N3-substituted thiosemicarbazide (II-IV) in concentrated sulphuric acid were isomerized. New derivatives of 4-hydroxy-(2H)-phthalazinone and phthalazino-1,4-(2H)(3H)-dione were obtained.
Otto-Jaworska
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Department of Organic Chemistry, Pharmaceutical Faculty, School of Medicine, 6 Staszica Str., 20-081 Lublin, Poland.
D006900:Hydroxylation; D010793:Phthalazines / Q000138:chemical synthesis* / Q000494:pharmacology
D010793:Phthalazines