97583-91-0Relevant academic research and scientific papers
NEW METHOD OF SYNTHESIS OF δ-CARBOLINES FROM 3-INDOLINONE VIA PYRANOINDOLES
Velzheva, V. S.,Nevskii, K. V.,Suvorov, N. N.
, p. 191 - 196 (2007/10/02)
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-cyanopyranoindoles.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 pyranoindoles are discussed.
