QD499 : Synthesis of pyrazol derivatives in the presence of Mg-MOF-74 supported deep eutectic solvent catalyst
Thesis > Central Library of Shahrood University > Chemistry > MSc > 2025
Authors:
Zahra Hatami [Author], Ali Keivanloo[Supervisor], Mahdi Mirzaee[Supervisor]
Abstarct: In this work, various derivatives of bis-pyrazolones were synthesized using a deep eutectic solvent catalyst immobilized on a Mg-MOF-74 frxamework. This catalyst was prepared from the reaction of the deep eutectic solvent choline chloride/glucose (in a 1:2 ratio) with the Mg-MOF-74 mextal–organic frxamework. In this method, a three-component reaction of phenylhydrazine, ethyl acetoacetate, and various aromatic aldehydes was carried out under solvent-free conditions at 70 °C in the presence of choline chloride/glucose immobilized on the mextal–organic frxamework (MCG) catalyst. Using this method, substituted bis-pyrazolone derivatives were synthesized in high yields. Subsequently, a click chemistry reaction was performed on the bis-pyrazolones with aromatic azides, which led to the formation of new 1,2,3-triazole lixnked-pyrazolone system. The structures of the synthesized compounds were confirmed by ¹H-NMR, ¹³C-NMR, and FT-IR analyses, and the structure of the catalyst was also confirmed by FE-SEM, FT-IR, EDS, and XRD analyses.
Keywords:
#Bis-pyrazolone #Multicomponent reaction #mextal–organic frxamework #Deep eutectic solvent #Click reaction #1 #2 #3-Triazole Keeping place: Central Library of Shahrood University
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