Reactions of 4-hydrazinoquinazoline with derivatives of 1,3-cyclanediones

Abstract

In reactions of 4-hydrazinoquinazoline with 2 formyl- and 2-acetyldimedones, 2- formyl-1,3-indandione, dehydroacetic acid, and 2,2-dimethyl-5-ethoxymethylene-1,3-dioxane-4,6-dione, the corresponding hydrazinomethylene and 1-hydrazinoethylidene derivatives have been obtained. Attempts to convert the 2-hydrazinomethylene- and 2-(1-hydrazinoethylidene)dimedones to indazole derivatives were unsuccessful. In reactions of 4-hydrazinoquinazoline with 2-cyano-3-ethoxy-5,5-dimethylcyclohex-2-en-1-one, 3-hydrazino derivatives were obtained; with 2-amino-5-oxo-7,7-dimethyl-5,6,7,8-tetrahydroquinazoline and 1-phenyl-4,5-dioxo-6, 6-dimethyl-4,5,6,7-tetrahydroindazole, the corresponding 5-(4-quinazolylhydrazino) derivatives were obtained.

How to Cite
Strakov, A. Ya.; Krasnova, A. A.; Petrova, M. V. Chem. Heterocycl. Compd. 1996, 32, 72. [Khim. Geterotsikl. Soedin. 1996, 81.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF01169358