STUDY OF THE MECHANISM OF CYCLIZATION AND DECOMPOSITION OF METHYLKETONES OXINDOLES IN ACIDIC MEDIUM

  • OUAHRANI MOHAMMED RIDHA Laboratoire de valorisation des ressources sahariennes. Faculté des sciences et sciences de l’ingénieur, Université de Ouargla Algérie
  • SEGNI LADJEL Laboratoire de valorisation des ressources sahariennes. Faculté des sciences et sciences de l’ingénieur, Université de Ouargla Algérie
  • DENDOUGUI HOUCINE Laboratoire de valorisation des ressources sahariennes. Faculté des sciences et sciences de l’ingénieur, Université de Ouargla Algérie.
Keywords: Cyclization, methylketone oxindoles, acidic medium, indolenine

Abstract

The stechiometry of the paratoluene sulphonic acid is a determining factor of the reaction of cyclization of the oxindolic methylketone 1. Indeed, the oxindolic methylketone 1 is cyclized in pentacyclic compound 2 in the presence of an adequate quantity of paratoluene sulphonic acid in good yield. Obtaining the tow epimeric indolenines 3a and 3b enabled us to explain the mechanism of this reaction.

Published
2006-01-01
How to Cite
MOHAMMED RIDHA, O., LADJEL, S., & HOUCINE, D. (2006). STUDY OF THE MECHANISM OF CYCLIZATION AND DECOMPOSITION OF METHYLKETONES OXINDOLES IN ACIDIC MEDIUM. Annals of Science and Technology, 1(1), 3. Retrieved from https://journals.univ-ouargla.dz/index.php/AST/article/view/192
Issue
Vol 1 No 1 (2006): volume 1 numéro 1 2006
Section
Articles