L. Yakhontov, M. Y. Uritskaya, R. G. Glushkov
Aug 1, 1976
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Journal
Chemistry of Heterocyclic Compounds
Abstract
Abstract7-Benzyl-3-oxo-7H,1,2,3,4,5,6-hexahydropyrrolo[2,3-c]pyridazine was synthesized from 1-benzyl-2, 3-dioxopyrrolidine through the corresponding 3-hydroxy, 3-chloro, 3-(diethoxycarbonyl) methyl, and 3-ethoxycarbonylmethyl derivatives. The Fischer cyclization of cyclohexanone 5-chloro-2-pyridazylhydrazone, which leads to 2-chloro-1,9a-diaza-5,6,7,8-tetrahydrocarbazole, was studied.