Dépôt institutionnel de l'universite Freres Mentouri Constantine 1

Etude des effets de quelques catalyseurs sur la preparation des 3,4-dihydropyrimidinones, des 1,4- dihydropyridines et des pyrano[2,3-c]pyrazoles

Afficher la notice abrégée

dc.contributor.author Amine Khodja Imène
dc.contributor.author Debache A.
dc.date.accessioned 2022-05-25T08:18:18Z
dc.date.available 2022-05-25T08:18:18Z
dc.date.issued 2017-01-01
dc.identifier.uri http://depot.umc.edu.dz/handle/123456789/8057
dc.description 180 f.
dc.description.abstract In this manuscript, we were interested in the development of the multi-component reactions by the study of the catalytic power of some catalysts on the reaction of Biginelli, the reaction of Hantzsch and the synthesis of pyrano[2.3-c]pyrazoles. The first chapter concerns the synthesis of the 3,4-dihydropyrimidinones (DHPMs) based on the general reaction of Biginelli, which is considered as one of the most important MCRs, by using two catalysts: the Copper acetate (Lewis acid) and Pyridinium-ptoluenesufonate (complex liquid). The second chapter is dedicated to the synthesis of a range varied by 1,4- dihydropyridines (or DHPs) according to the general reaction of Hantzsch with some modifications, which imply (involve) the absence of solvent and the use of " the salicylic acid (carboxylic acid) and of Pyridinium-p-toluenesufonate " as an unusual catalyst of this reaction. The third chapter concerns the catalytic study of two new catalysts in the synthesis of pyrano[2.3-c]pyrazole, which are not only available, but also little expensive and little toxic, namely: "phenylboronic acid and triphenylphosphine ".
dc.language.iso fre
dc.publisher Université Frères Mentouri - Constantine 1
dc.subject Chimie
dc.title Etude des effets de quelques catalyseurs sur la preparation des 3,4-dihydropyrimidinones, des 1,4- dihydropyridines et des pyrano[2,3-c]pyrazoles
dc.coverage 2 copies imprimées disponibles


Fichier(s) constituant ce document

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée

Chercher dans le dépôt


Parcourir

Mon compte