Abstract
3-Methyl-4-benzyl-2,6-diphenylpiperidine was obtained by hydrogenation of 3-methyl-4-benzyl-2,6-diphenylpyridine in the presence of rhenium heptasulfide; this confirms the common character of the method of selective hydrogenation of aryl(aralkyl)-substituted pyridine bases to give similarly substituted piperidines. Dehydrocyclization of this pyridine base by heating with sulfur leads to 10-mercapto-1,3-diphenyl-2-azaanthracene, which was obtained under the same conditions from 1,2-diphenyl-1,2-bis(3-methyl-2,6-diphenyl-4-pyridyl)ethane.
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M. A. Ryashentseva, Kh. M. Minaev, V. V. Dorogov, and N. S. Prostakov, USSR Inventor's Certificate No. 287019; Byull. Izobret., No. 35, 41 (1970).
N. S. Prostakov, Mario Torres, A. V. Varlamov, and G. A. Vasil'ev, Khim. Geterotsikl. Soedin., No. 5, 648 (1979).
A. A. Polyakova and R. A. Khmel'nitskii, Mass Spectrometry in Organic Chemistry [in Russian], Khimiya, Leningrad (1972), p. 158.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 375–376, March, 1982.
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Prostakov, N.S., Varlamov, A.V., Torres, M. et al. Selective hydrogenation and dehydrocyclization of 3-methyl-4-benzyl-2,6-diphenylpyridine. Chem Heterocycl Compd 18, 283–284 (1982). https://doi.org/10.1007/BF00522130
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DOI: https://doi.org/10.1007/BF00522130