Abstract
2-Arylidene-1-acetylindolin-3-ones were obtained from 1-acetylindolin-3-ones and p-substituted benzaldehydes or 4-pyridinecarboxaldehyde, by the action of malonodinitrile, andwere converted into 2-amino-4-aryl-5-acetyl-3-cyanopyrano[3,2-b]indoles. When heated with an aqueous-alcoholic solution of KOH, the latter compounds transform into 2-alkoxy-4-aryl-3-cyano-δ-carbolines. The possible paths of formation of δ-carbolines and pyrano[3,2-b]indoles are discussed.
Similar content being viewed by others
Literature cited
O. N. Boyarintseva, G. N. Kurilo, O. S. Anisimova, and A. N. Grinev, Khim. Geterotsikl. Soedin., No. 1, 82 (1977).
G. N. Kurilo, O. N. Boyarintseva, and A. N. Grinev, Inventor's Certificate, No, 546616, Byull. Izobret., No. 6, 74 (1977).
V. S. Velezheva, A. V. Yarosh, T. A. Kozik, and N. N. Suvorov, Zh. Org. Khim., 14, 1712 (1978).
N. N. Surorov, V. A. Chernov, V. S. Velezheva, Yu. A. Ershova, S. V. Simakov, and V. P. Sevodin, Khim.-Farm. Zh., No. 9, 27 (1981).
V. P. Sevodin, V. S. Velezheva, and N. N. Suvorov, Khim. Geterotsikl. Soedin., No. 3, 368 (1981).
A. N. Kost and A. P. Terent'ev, Zh. Obshch. Khim., 26, 1992 (1956).
P. Waykole and R. N. Usgaonkar, Indian J. Chem., A21, 272 (1982).
R. Elderfield (ed.), Heterocyclic Compounds [Russian translation], Vol. 1, Inostr. Lit., Moscow (1953), p. 273.
V. P. Sevodin, V. S. Velezheva, and N. N. Suvorov, Khim. Geterotsikl. Soedin., No. 8, 1125 (1982).
R. W. Daisley and Z. A. Elagbar, J. Heterocycl. Chem., 19, 1013 (1982).
C. D. Nenitzescu and D. Raileanu, Chem. Ber., 91, 1141 (1958).
V. S. Velezheva, V. P. Sevodin, Yu. V. Erofeev, N. K. Genkina, T. A. Kozik, V. V. Vampilova, and N. N. Suvorov, Khim. Geterotsikl. Soedin., No. 3, 360 (1977).
Author information
Authors and Affiliations
Additional information
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 230–235, February, 1985.
Rights and permissions
About this article
Cite this article
Velzheva, V.S., Nevskii, K.V. & Suvorov, N.N. New method of synthesis of δ-carbolines from 3-indolinone via pyrano[3,2-b]indoles. Chem Heterocycl Compd 21, 191–196 (1985). https://doi.org/10.1007/BF00504208
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00504208