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Habeeb Naser I, Thoulfikar A. Alamir H, Al-Shukarji AH, Ahmed BA, Qassem TA, Kamal M, Almeleebia TM, Alwaily ER, Hasan Kadhum E, Alawadi A, Alsalamy A. Choline chloride/urea as a green and efficient deep eutectic solvent in three-component and four-component synthesis of novel pyrazole and pyrano[2,3-c] pyrazole derivatives with antibacterial and antifungal activity. Front Chem 2024; 12:1342784. [PMID: 38435668 PMCID: PMC10904593 DOI: 10.3389/fchem.2024.1342784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/15/2024] [Indexed: 03/05/2024] Open
Abstract
In this study, choline chloride/urea was used as a green deep eutectic solvent in the three-component reaction of hydrazine/phenylhydrazine, malononitrile, and aromatic aldehydes for synthesizing pyrazole derivatives, and in the four-component reaction of methyl/ethyl acetoacetate, hydrazine/phenylhydrazine, malononitrile, and aromatic aldehydes for synthesizing pyrano[2,3-c]pyrazole derivatives. Elemental analysis, 1H, and 13C NMR spectroscopy were used to confirm the structure of the synthesized pyrazole and pyrano[2,3-c] pyrazole derivatives. The antimicrobial effects of the synthesized pyrazole and pyrano[2,3-c] pyrazole derivatives were investigated. In antimicrobial tests, instructions from clinical and laboratory standards institutes were used. Antimicrobial study was done on pathogenic gram-positive and gram-negative species, and specialized aquatic strains and fungal species. Using choline chloride/urea, novel pyrazole derivatives and pyrano[2,3-c]pyrazole derivatives were synthesized, and other derivatives were synthesized with higher efficiency in less time than some previously reported methods. MIC (minimum inhibitory concentration) and MBC (minimum bactericidal concentration) obtained for derivatives were higher than some antibiotic drugs. Synthesis and reports of new derivatives of pyrazole and pyrano[2,3-c]pyrazole, and investigation and reports of their antimicrobial properties on gram-positive, gram-negative, and specialized aquatic and fungal species are among the novel and important findings of this study.
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Affiliation(s)
- Israa Habeeb Naser
- Medical Laboratories Techniques Department, Al-Mustaqbal University, Hillah, Iraq
| | | | - Ali Hisham Al-Shukarji
- Department of Medical Laboratories Technology, Al-Manara College for Medical Sciences, Maysan, Iraq
| | - Batool Ali Ahmed
- Department of Medical Engineering, Al-Nisour University College, Baghdad, Iraq
| | - Talal Aziz Qassem
- Department of Medical Laboratory Technics, Al-Noor University College, Nineveh, Iraq
| | - Maher Kamal
- Department of Dentistry, Al-Hadi University College, Baghdad, Iraq
| | - Tahani M. Almeleebia
- Department of Clinical Pharmacy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Enas R. Alwaily
- Microbiology Research Group, College of Pharmacy, Al-Ayen University, Thi-Qar, Iraq
| | | | - Ahmed Alawadi
- College of Technical Engineering, The Islamic University, Najaf, Iraq
- College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq
| | - Ali Alsalamy
- College of Technical Engineering, Imam Ja’afar Al‐Sadiq University, Al‐Muthanna, Iraq
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Yadav AR, Katariya AP, Kanagare AB, Patil PDJ, Tagad CK, Dake SA, Nagwade PA, Deshmukh SU. Review on advancements of pyranopyrazole: synthetic routes and their medicinal applications. Mol Divers 2024:10.1007/s11030-023-10757-w. [PMID: 38236443 DOI: 10.1007/s11030-023-10757-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/22/2023] [Indexed: 01/19/2024]
Abstract
Pyranopyrazoles are among the most distinguished, biologically potent, and exciting scaffolds in medicinal chemistry and drug discovery. Synthesis and design of pyranopyrazoles using functional modifications via multicomponent reactions (MCRs) are thoroughly found in synthetic protocols by forming new C-C, C-N, and C-O bonds. This review aims to focus on the biological importance of pyranopyrazoles as well as on a diverse synthetic approach for their synthesis using various catalytic systems such as acid-catalyzed, base-catalyzed, ionic liquids and green media-catalyzed, nano-particle-catalyzed, metal oxide-supported catalysts, and silica-supported catalysts. In this review, we have summarized data on the advancements in synthesizing pyranopyrazole from the last two decades to the mid-2023 and research papers describing the importance of these scaffolds. This review will be significant for synthetic organic chemists and researchers working in organic chemistry.
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Affiliation(s)
- Ashok R Yadav
- Department of Chemistry, Deogiri College, Aurangabad, Maharashtra, 431005, India
| | - Ashishkumar P Katariya
- Department of Chemistry, SAJVPM'S Smt. S. K. Gandhi Arts, Amolak Science & P. H. Gandhi, Commerce College, Kada, Beed, Maharashtra, 414202, India
| | - Anant B Kanagare
- Department of Chemistry, Deogiri College, Aurangabad, Maharashtra, 431005, India.
| | - Pramod D Jawale Patil
- Department of Chemistry, Balbhim Arts, Science and Commerce College, Beed, Maharashtra, 431122, India
| | - Chandrakant K Tagad
- Department of Biochemistry, S.B.E.S. College of Science, Aurangabad, Maharashtra, 431001, India
| | - Satish A Dake
- Department of Chemistry, Sunderrao Solanke Mahavidyalaya, Majalgaon, Maharashtra, 431131, India
| | - Pratik A Nagwade
- Department of Chemistry, Shri Anand College, Pathardi, Ahmednagar, Maharashtra, 414102, India
| | - Satish U Deshmukh
- Department of Chemistry, Deogiri College, Aurangabad, Maharashtra, 431005, India.
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Ahmad A, Rao S, Shetty NS. Green multicomponent synthesis of pyrano[2,3- c]pyrazole derivatives: current insights and future directions. RSC Adv 2023; 13:28798-28833. [PMID: 37790089 PMCID: PMC10543893 DOI: 10.1039/d3ra05570a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 09/22/2023] [Indexed: 10/05/2023] Open
Abstract
The past decade has witnessed significant progress in synthesizing structurally diverse and biologically relevant pyrano[2,3-c]pyrazole derivatives through the integration of green methodologies. This review summarizes the recent advances in the green multicomponent synthesis of pyrano[2,3-c]pyrazole and spiro-pyrano[2,3-c]pyrazole derivatives. These include the application of energy-efficient techniques such as microwave and ultrasound-assisted synthesis, benign catalysts and biodegradable composites, solvent selection with a focus on water as a renewable and non-toxic medium, and solvent-free conditions. The review consolidates the current knowledge and future research directions, providing a valuable resource for researchers dedicated to advancing green chemistry practices.
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Affiliation(s)
- Afrisham Ahmad
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education Manipal Karnataka 576104 India
| | - Sithara Rao
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education Manipal Karnataka 576104 India
| | - Nitinkumar S Shetty
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education Manipal Karnataka 576104 India
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Patil SP, Shinde SK, Patil SS. Coconut endocarp shell ash (CESA): a non-conventional catalyst for green synthesis of 2-amino-4H-benzochromenes. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04847-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Design, preparation and application of the semicarbazide-pyridoyl-sulfonic acid-based nanocatalyst for the synthesis of pyranopyrazoles. Sci Rep 2022; 12:14347. [PMID: 35999336 PMCID: PMC9399233 DOI: 10.1038/s41598-022-18651-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 08/17/2022] [Indexed: 11/09/2022] Open
Abstract
A novel, efficient, and recoverable nanomagnetic catalyst bearing the semicarbazide linkers, namely, Fe3O4@SiO2@OSi(CH2)3-N(3-pyridoyl sulfonic acid)semicarbazide (FSiPSS) was designed, synthesized and characterized by the use of various techniques such as FT-IR, EDX, elemental mapping analysis, XRD, SEM, TEM, TGA/DTA, BET, and VSM. Then, the catalytic capability of the novel prepared nanomagnetic FSiPSS catalyst was successfully investigated in the synthesis of diverse pyranopyrazoles through a one-pot four-component condensation reaction of ethyl acetoacetate, hydrazine hydrate, aromatic aldehydes, and malononitrile or ethyl cyano-acetate by the help of ultrasonication in very short reaction time, good to high yields and easy work-up (Fig. 1). Figure 1 Synthesis of diverse pyranopyrazoles by the FSiPSS nano-catalyst.
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Hamidinasab M, Ahadi N, Bodaghifard MA, Brahmachari G. Sustainable and Bio-Based Catalysts for Multicomponent Organic Synthesis: An Overview. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2097278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
| | - Najmieh Ahadi
- Institute of Nanosciences &Nanotechnology, Arak University, Arak, Iran
| | - Mohammad Ali Bodaghifard
- Institute of Nanosciences &Nanotechnology, Arak University, Arak, Iran
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
| | - Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis Department of Chemistry, Visva-Bharati University, Santiniketan, West Bengal, India
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Coconut endocarp shell ash (CESA): a versatile and waste-originated catalyst for the synthesis of tetrahydrobenzo[b]pyrans and 1, 4-dihydropyridines. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04770-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Mahato BN, Krithiga T, Kumar JA, Yogalakshmi G. Efficient one-pot synthesis of 4-hydroxy-2H chromene by heterogeneously catalyzed ZnO NP and mesoporous aluminosilicate catalysts in solvent free condition. CAN J CHEM 2022. [DOI: 10.1139/cjc-2021-0151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
4-Hydroxy-2H chromenes are fused benzopyran rings, an important class of biologically active compounds that are widely used as antibacterial, antiviral, antitumor, and anticancer agents. In this paper, we report the synthesis of 4-hydroxy-2H chromenes using two catalysts: (i) ZnO nanoparticles and (ii) mesoporous ZnO/AlSBA-15(7). The ZnO nanoparticle catalyst was prepared using leaf extract, and ZnO/AlSBA-15(7) catalysts were prepared by a wet chemical route. All catalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, and N2 sorption techniques. The catalytic activity of the synthesized catalyst was evaluated in a one-pot reaction using aromatic aldehyde and coumarin and was found to have a maximum yield of 81% at 80 °C, with a catalyst dose of 10 mmol %, and in a time limit of 4 h.
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Affiliation(s)
- Birendra Nath Mahato
- Department of Chemistry, Sathyabama Institute of Science and Technology, Chennai 600119, India
| | - T. Krithiga
- Department of Chemistry, Sathyabama Institute of Science and Technology, Chennai 600119, India
| | - J. Aravind Kumar
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai 600119, India
| | - G. Yogalakshmi
- Department of Chemistry, Sathyabama Institute of Science and Technology, Chennai 600119, India
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Kamalzare M, Ahghari MR, Bayat M, Maleki A. Fe 3O 4@chitosan-tannic acid bionanocomposite as a novel nanocatalyst for the synthesis of pyranopyrazoles. Sci Rep 2021; 11:20021. [PMID: 34625599 PMCID: PMC8501051 DOI: 10.1038/s41598-021-99121-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 09/20/2021] [Indexed: 02/08/2023] Open
Abstract
Recently magnetic nanocatalyst has attracted considerable attention because of its unique properties, including high performance, easy separation from the reaction mixture, and recyclability. In this study, a novel magnetic bionanocomposite was synthesized with chitosan and tannic acid as a natural material. The synthesized bionanocatalyst was characterized by essential analysis. Fe3O4@chitosan-tannic acid as a heterogeneous nanocatalyst was successfully applied to synthesize pyranopyrazole and its derivatives by a one-pot four-component reaction of malononitrile, ethyl acetoacetate, hydrazine hydrate, and various aromatic aldehyde. At the end of the reaction, the nanocatalyst was separated from the reaction mixture and was reused several times with no significant decrease in its catalytic performance. Simple purification of products, the ability for recovering and reusing the nanocatalyst, eco-friendliness, high yields of pure products, mild reaction conditions, short reaction time, non-toxicity, economically affordable are some of the advantages of using the fabricated nanocatalyst in the synthesis of pyranopyrazole.
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Affiliation(s)
- Maryam Kamalzare
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Mohammad Reza Ahghari
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran.
| | - Ali Maleki
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran.
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Nikoofar K, Yielzoleh FM. High-component reactions (HCRs): An overview of MCRs containing seven or more components as versatile tools in organic synthesis. Curr Org Synth 2021; 19:115-147. [PMID: 34515008 DOI: 10.2174/1570179418666210910111208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/28/2021] [Accepted: 07/07/2021] [Indexed: 11/22/2022]
Abstract
Recently, multi-component reactions (MCRs) have gained special attention due to their versatility for the synthesis of polycyclic heterocycles. Moreover, their applicability can become more widespread as they can be combined together as a union of MCRs. In this overview, the authors have tried to collect the MCRs containing more than seven components that can lead to effectual heterocycles in organic and/or pharmaceutical chemistry. The review contains papers published up to the end of 2020. The subject is classified based on the number of substrates, such as seven-, eight-, nine-, ten-, and more components. The authors expect their report to be helpful for researchers to clarify their route to significant MCRs.
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Affiliation(s)
- Kobra Nikoofar
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran. Iran
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Patil BM, Shinde SK, Jagdale AA, Jadhav SD, Patil SS. Fruit Extract of Averrhoa bilimbi: A Green Neoteric Micellar Medium for Isoxazole and Biginelli-Like Synthesis. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04539-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Copper(II) Anchored on Amine-Functionalized MMT: A Highly Efficient Catalytic System for the One-Pot Synthesis of Bispyrano[2,3-c]pyrazole Derivatives. J CHEM-NY 2021. [DOI: 10.1155/2021/1784142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, preparation of pyridine-2-carboimine copper complex immobilized on amine-functionalized nanoclay montmorillonite K10 was reported. The products were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and thermogravimetric analysis (TGA). The catalytic activity of this new nanocatalyst, as a natural, renewable, inexpensive, and heterogeneous catalyst, was very effective for the four-component condensation reaction of hydrazine hydrate (or phenyl hydrazine), malononitrile, β-ketoester, and terephthalaldehyde (or isophthalaldehyde) toward the synthesis of multisubstituted bispyrano[2,3-c]pyrazole derivatives. From the viewpoint of green chemistry, the advantages of this approach are accessibility, simplicity, and high yields synthesis. The catalyst was recycled and reused four times without significant loss of activity.
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Ganta RK, Kerru N, Maddila S, Jonnalagadda SB. Advances in Pyranopyrazole Scaffolds' Syntheses Using Sustainable Catalysts-A Review. Molecules 2021; 26:3270. [PMID: 34071629 PMCID: PMC8199150 DOI: 10.3390/molecules26113270] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/23/2021] [Accepted: 05/26/2021] [Indexed: 11/17/2022] Open
Abstract
Heterogeneous catalysis plays a crucial role in many chemical processes, including advanced organic preparations and the design and synthesis of new organic moieties. Efficient and sustainable catalysts are vital to ecological and fiscal viability. This is why green multicomponent reaction (MCR) approaches have gained prominence. Owing to a broad range of pharmacological applications, pyranopyrazole syntheses (through the one-pot strategy, employing sustainable heterogeneous catalysts) have received immense attention. This review aimed to emphasise recent developments in synthesising nitrogen-based fused heterocyclic ring frameworks, exploring diverse recyclable catalysts. The article focused on the synthetic protocols used between 2010 and 2020 using different single, bi- and tri-metallic materials and nanocomposites as reusable catalysts. This review designated the catalysts' efficacy and activity in product yields, reaction time, and reusability. The MCR green methodologies (in conjunction with recyclable catalyst materials) proved eco-friendly and ideal, with a broad scope that could feasibly lead to advancements in organic synthesis.
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Affiliation(s)
- Ravi Kumar Ganta
- Department of Chemistry, GITAM Institute of Sciences, GITAM University, Visakhapatnam 530045, India; (R.K.G.); (S.M.)
| | - Nagaraju Kerru
- Department of Chemistry, GITAM School of Science, Bengaluru Campus, GITAM University, Karnataka 561203, India;
- School of Chemistry & Physics, Westville Campus, University of KwaZulu-Natal, Chiltern Hills, Durban 4000, South Africa
| | - Suresh Maddila
- Department of Chemistry, GITAM Institute of Sciences, GITAM University, Visakhapatnam 530045, India; (R.K.G.); (S.M.)
- School of Chemistry & Physics, Westville Campus, University of KwaZulu-Natal, Chiltern Hills, Durban 4000, South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, Westville Campus, University of KwaZulu-Natal, Chiltern Hills, Durban 4000, South Africa
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Patil UP, Patil RC, Patil SS. Biowaste-Derived Heterogeneous Catalyst for the One-Pot Multicomponent Synthesis of Diverse and Densely Functionalized 2-Amino-4 H-Chromenes. ORG PREP PROCED INT 2021. [DOI: 10.1080/00304948.2020.1871309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- U. P. Patil
- Department of Chemistry, ACS College, Palus, Sangli, affiliated to Shivaji University, Kolhapur, Maharashtra, India
| | - Rupesh C. Patil
- Green Chemistry Research Laboratory, SMDBS College, Miraj, Sangli, affiliated to Shivaji University, Kolhapur, Maharashtra, India
| | - Suresh S. Patil
- Synthetic Research Laboratory, PG Department of Chemistry, PDVP College, Tasgaon, Sangli, affiliated to Shivaji University, Kolhapur, Maharashtra, India
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A synergetic role of Aegle marmelos fruit ash in the synthesis of biscoumarins and 2-amino-4H-chromenes. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-020-04367-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Patil MU, Shinde SK, Patil SP, Patil SS. [BBSA-DBN][HSO4]: a novel –SO3H functionalized Bronsted acidic ionic liquid for easy access of quinoxalines. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04227-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Patil RC, Patil UP, Jagdale AA, Shinde SK, Patil SS. Ash of pomegranate peels (APP): A bio-waste heterogeneous catalyst for sustainable synthesis of α,α′-bis(substituted benzylidine)cycloalkanones and 2-arylidene-1-tetralones. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04160-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Hosseini Mohtasham N, Gholizadeh M. Nano silica extracted from horsetail plant as a natural silica support for the synthesis of H3PW12O40 immobilized on aminated magnetic nanoparticles (Fe3O4@SiO2-EP-NH-HPA): a novel and efficient heterogeneous nanocatalyst for the green one-pot synthesis of pyrano[2,3-c]pyrazole derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04133-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Karami S, Dekamin MG, Valiey E, Shakib P. DABA MNPs: a new and efficient magnetic bifunctional nanocatalyst for the green synthesis of biologically active pyrano[2,3- c]pyrazole and benzylpyrazolyl coumarin derivatives. NEW J CHEM 2020. [DOI: 10.1039/d0nj02666b] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new core–shell magnetic silica functionalized with 3,4-diaminobenzoic acid nanocatalyst (Fe3O4@SiO2@PTS-DABA) was prepared and characterized. The Fe3O4@SiO2@PTS-DABA catalyst was applied for the synthesis of dihydropyranopyrazole and benzylpyrazolyl coumarin derivatives.
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Affiliation(s)
- Shahriar Karami
- Pharmaceutical and Heterocyclic Compounds Research Laboratory
- Department of Chemistry
- Iran University of Science and Technology
- Tehran
- Iran
| | - Mohammad G. Dekamin
- Pharmaceutical and Heterocyclic Compounds Research Laboratory
- Department of Chemistry
- Iran University of Science and Technology
- Tehran
- Iran
| | - Ehsan Valiey
- Pharmaceutical and Heterocyclic Compounds Research Laboratory
- Department of Chemistry
- Iran University of Science and Technology
- Tehran
- Iran
| | - Peyman Shakib
- Pharmaceutical and Heterocyclic Compounds Research Laboratory
- Department of Chemistry
- Iran University of Science and Technology
- Tehran
- Iran
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Valiey E, Dekamin MG, Alirezvani Z. Melamine-modified chitosan materials: An efficient and recyclable bifunctional organocatalyst for green synthesis of densely functionalized bioactive dihydropyrano[2,3-c]pyrazole and benzylpyrazolyl coumarin derivatives. Int J Biol Macromol 2019; 129:407-421. [DOI: 10.1016/j.ijbiomac.2019.01.027] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 12/28/2018] [Accepted: 01/05/2019] [Indexed: 01/06/2023]
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