Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

New method of synthesis of delta-carbolines from 3-indolinone via pyrano(3,2-b)indoles

Journal Article · · Chem. Heterocycl. Compd. (Engl. Transl.); (United States)
DOI:https://doi.org/10.1007/BF00504208· OSTI ID:6084804

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, and were 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-delta-carbolines. The possible paths of formation of delta-carbolines and pyrano(3,2-b)indoles are discussed.

Research Organization:
D.I. Mendeleev Moscow Institute of Chemical Technology, USSR
OSTI ID:
6084804
Journal Information:
Chem. Heterocycl. Compd. (Engl. Transl.); (United States), Journal Name: Chem. Heterocycl. Compd. (Engl. Transl.); (United States) Vol. 21:2; ISSN CHCCA
Country of Publication:
United States
Language:
English