Abstract
The corresponding 4-ketohydroxanthenes, which undergo methylation and dehydration, are formed in the condensation of cyclohexane-1,2-dione with 2-dimethylaminomethylcyclohexanone, 2-benzylidenecyclo-hexanone, and 2,6-dibenzylidenecyclohexanone. 10a-Hydroxy-1,2,3,4,5,6,7,8,8a,10a-decahydro-4-xanthenone exists in tautomeric relationships with 2,2′,3-triketoperhydrodiphenylmethane.
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V. I. Vysotskii and M. N. Tilichenko, Khim. Geterotsikl. Soedin., 299 (1971).
L. Bellamy, Infrared Spectra of Complex Molecules, Methuen (1958).
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See [1] for communication IX.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 746–749, June, 1974.
The authors thank the co-workers of the Pacific Institute of Bioorganic Chemistry L. I. Glebko, V. A. Stonik, and V. V. Isakov for the analytical and spectral measurements.
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Vysotskii, V.I., Vershinina, N.V. & Tilichenko, M.N. Reactions of 1,5-diketones. Chem Heterocycl Compd 10, 647–649 (1974). https://doi.org/10.1007/BF00480914
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DOI: https://doi.org/10.1007/BF00480914