Abstract
Condensation of arylidene-2-naphthylarnines with 5,5-dimethylcyclohexane-1,3-dione (dimedone) gives novel 2,2-dimethyl-5-R-1,2,3,4,5,6-hexahydrobenzo[a]phenanthridin-4-ones. Treatment of azomethines containing an ortho hydroxyl group in the “aldehyde” fragment gives the corresponding 3,3,6,6-tetramethyl-9-R-1,2,3,4,5,6,7,8-octa-hydroxanthene-1,8-diones. The IR, UV, PMR, and mass spectra of the compounds synthesized have been studied.
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Kozlov, N.G., Gusak, K.N. & Makhnach, S.A. Synthesis and spectroscopic properties of novel benzo[a]phenanthridines. Chem Heterocycl Compd 32, 30–34 (1996). https://doi.org/10.1007/BF01169349
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DOI: https://doi.org/10.1007/BF01169349