R. Kuryazov, N. Mukhamedov, Kh. M. Shakhidoyatov
Dec 1, 2009
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Journal
Chemistry of Heterocyclic Compounds
Abstract
The corresponding 6-chlorosulfonylquinazoline-2,4-diones were synthesized by the reactions of 1-methylquinazoline-2,4-dione and its 3-alkyl-substituted derivatives with chlorosulfonic acid. Treatment of the products with nucleophilic agents (water or ammonia, aliphatic and cyclic amines) gave 2,4-dioxoquinazolin-6-sulfonic acids or their amides.