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Ali El-Remaily MAEAA, El-Dabea T, Alsawat M, Mahmoud MHH, Alfi AA, El-Metwaly N, Abu-Dief AM. Development of New Thiazole Complexes as Powerful Catalysts for Synthesis of Pyrazole-4-Carbonitrile Derivatives under Ultrasonic Irradiation Condition Supported by DFT Studies. ACS OMEGA 2021; 6:21071-21086. [PMID: 34423215 PMCID: PMC8375103 DOI: 10.1021/acsomega.1c02811] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/23/2021] [Indexed: 05/17/2023]
Abstract
In this study, we are interested in preparing Fe(III), Pd(II), and Cu(II) complexes from new thiazole derivatives. All syntheses were elaborately elucidated to estimate their molecular and structural formulae, which agreed with those of mononuclear complexes. The square-planer geometry of Pd(II) complex (MATYPd) was the starting point for its use as a heterocatalyst in preparing pyrazole-4-carbonitrile derivatives 4a-o using ultrasonic irradiation through a facile one-pot reaction. The simple operation, short-time reaction (20 min), and high efficiency (97%) were the special advantages of this protocol. Furthermore, this green synthesis strategy was advanced by examination of the reusability of the catalyst in four consecutive cycles without significant loss of catalytic activity. The new synthesis strategy presented remarkable advantages in terms of safety, simplicity, stability, mild conditions, short reaction time, excellent yields, and use of a H2O solvent. This catalytic protocol was confirmed by the density functional theory (DFT) study, which reflected the specific characteristics of such a complex. Logical mechanisms have been suggested for the successfully exerted essential physical parameters that confirmed the superiority of the Pd(II) complex in the catalytic role. Optical band gap, electrophilicity, and electronegativity features, which are essential parameters for the catalytic behavior of the Pd(II) complex, are based mainly on the unsaturated valence shell of Pd(II).
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Affiliation(s)
| | - Tarek El-Dabea
- Department
of Chemistry, Faculty of Science, Sohag
University, 82524 Sohag, Egypt
| | - Mohammed Alsawat
- Department
of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Mohamed H. H. Mahmoud
- Department
of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department
of Chemistry, Faculty of Applied Science, Umm Al-Qura University, 715, Makkah, Saudi Arabia
| | - Nashwa El-Metwaly
- Department
of Chemistry, Faculty of Applied Science, Umm Al-Qura University, 715, Makkah, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Mansoura
University, 35516, Mansoura, Egypt
| | - Ahmed M. Abu-Dief
- Department
of Chemistry, Faculty of Science, Sohag
University, 82524 Sohag, Egypt
- Department
of Chemistry, College of Science, Taibah
University, P.O. Box 344, 344, Madinah, Saudi Arabia
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Abshirini Z, Lotfifar N, Zare A. A Highly Effectual and Rapid Protocol for the Synthesis of 5-Amino-1,3-diaryl-1H-pyrazole-4-carbonitriles Using 1,3-Disulfonic Acid Imidazolium Trifluoroacetate as a Dual-Functional Catalyst. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2020.1780884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Zahra Abshirini
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - Nesa Lotfifar
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - Abdolkarim Zare
- Department of Chemistry, Payame Noor University, Tehran, Iran
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Zare A, Dianat M, Eskandari MM. A novel organic–inorganic hybrid material: production, characterization and catalytic performance for the reaction of arylaldehydes, dimedone and 6-amino-1,3-dimethyluracil. NEW J CHEM 2020. [DOI: 10.1039/c9nj06393e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel silica-based organic–inorganic hybrid catalyst was prepared, characterized and applied for the synthesis of pyrimido[4,5-b]quinolines.
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Affiliation(s)
| | - Manije Dianat
- Department of Chemistry
- Payame Noor University
- Tehran
- Iran
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