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Ghodrat Mahmoudi

Ghodrat Mahmoudi

Academic rank: Associate Professor
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Education: PhD.
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Faculty: 1
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Research

Title
Zirconium based porous coordination polymer (PCP) bearing organocatalytic ligand: A promising dual catalytic center for ultrasonic heterocycle synthesis
Type
JournalPaper
Keywords
Ultrasound irradiationZr-PCP-NH2BenzimidazoleSonochemical synthesisGreen catalyst
Year
2019
Journal ULTRASONICS SONOCHEMISTRY
DOI
Researchers Paria Panahi ، ، Esmail Doustkhah ، Hamed Mohtasham ، Arefeh Ahadi ، Azra Ghiasi-Moaser ، Sadegh Rostamnia ، Ghodrat Mahmoudi ،

Abstract

Herein, the efficient role of ultrasonic irradiation both in synthesis of Zr based porous coordination polymer (Zr-PCP) nanoparticles and boosting its catalytic activity, towards the benzimidazoles synthesis is represented. We use an amine based ligand (amino-terephthalate) for PCP and we exhibit that it can have a synergistic catalytic activity. In this work, a unique nano-engineering of cooperative and synergistic catalytic activity of zirconium, as a Lewis acid, and aminophenylene, as an organocatalyst, in the synthesis of heterocycles is presented for the synthesis of benzimidazole from cascade reaction of phenylene diamine with aldehyde at ambient temperature. Zr and amine groups of the Zr-PCP are active catalytic sites which in combination with the ultrasonic irradiation leads to a high selectivity and rapid catalytic production of benzylimidazoles. N2 adsorption-desorption along with BJH analyses confirm the microporosity of the catalyst and recyclability shows that the catalyst is green and sustainable heterogeneous microporous catalyst.