Abstract
It has been shown by means of PMR spectra that the Fischer cyclization of arylhydrazones of tetrahydrothiopyran-3-one forms 2,3-dihydrothiopyrano[3,2-b]indoles; the cyclization of arylhydrazones of tetrahydrothiopyran-3-one S, S-dioxide leads to the formation of 1,2-dihydrothiopyrano[3,4-b]indole S, S-dioxides.
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For Communication XXXII, see [8]
Translated from Khimiya Geterotsiklicheskikh Soedinenii, Vol. 6, No. 7, pp. 931–934, July, 1970.
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Aksanova, L.A., Sharkova, L.M. & Kucherova, N.F. Indole derivatives. Chem Heterocycl Compd 6, 864–867 (1970). https://doi.org/10.1007/BF00471676
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DOI: https://doi.org/10.1007/BF00471676