1
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Koli BP, Gore RP. Catalyst-free On-Water Synthesis of 5-Aminopyrazole-4-carbonitriles as Potential Antifungal Agents. ORG PREP PROCED INT 2023. [DOI: 10.1080/00304948.2022.2153640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Bharti P. Koli
- University Institute of Chemical Technology, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, India
| | - Rambhau P. Gore
- University Institute of Chemical Technology, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, India
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2
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Bakhtiarian M, Khodaei MM. Pyridinium-based dual acidic ionic liquid supported on the pectin for efficient synthesis of pyrazoles. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119883] [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]
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3
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Dhameliya TM, Nagar PR, Bhakhar KA, Jivani HR, Shah BJ, Patel KM, Patel VS, Soni AH, Joshi LP, Gajjar ND. Recent advancements in applications of ionic liquids in synthetic construction of heterocyclic scaffolds: A spotlight. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118329] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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4
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Moosavi-Zare AR, Goudarziafshar H, Yadollahi M, Jalilian Z. The Synthesis of Polysubstituted Amino Pyrazoles Using Nano-[Zn-4NSP]Cl2 as a New Schiff Base Complex and Catalyst. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2025865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Hamid Goudarziafshar
- Department of Chemical Engineering, Hamedan University of Technology, Hamedan, Iran
| | - Maryam Yadollahi
- Department of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad, Iran
| | - Zahra Jalilian
- Department of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad, Iran
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5
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Khazaei A, Moosavi-Zare AR, Goudarzi H, Tavasoli M. [Msim]CuCl3: as an efficient catalyst for the preparation of 5-amino-1H-pyrazole-4-carbonitriles by anomeric based oxidation. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2021. [DOI: 10.1515/znb-2021-0153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
3-Methyl-1-sulfonic acid imidazolium trichlorido copper (II) {[Msim]CuCl3} was prepared and used as a new catalyst for the preparation of 5-amino-1H-pyrazole-4-carbonitriles. In this reaction, the pyrazole ring was formed by an anomeric and vinylogous anomeric effect in the structure of the product.
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Affiliation(s)
- Ardeshir Khazaei
- Faculty of Chemistry, Bu-Ali Sina University , Hamedan , 6517838683 , Iran
| | - Ahmad Reza Moosavi-Zare
- Department of Chemical Engineering , Hamedan University of Technology , Hamedan , 65155 , Iran
| | - Hadis Goudarzi
- Faculty of Chemistry, Bu-Ali Sina University , Hamedan , 6517838683 , Iran
| | - Mahsa Tavasoli
- Faculty of Chemistry, Bu-Ali Sina University , Hamedan , 6517838683 , Iran
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6
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Ramadan M, Aly AA, El-Haleem LEA, Alshammari MB, Bräse S. Substituted Pyrazoles and Their Heteroannulated Analogs-Recent Syntheses and Biological Activities. Molecules 2021; 26:4995. [PMID: 34443583 PMCID: PMC8401439 DOI: 10.3390/molecules26164995] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 02/06/2023] Open
Abstract
Pyrazoles are considered privileged scaffolds in medicinal chemistry. Previous reviews have discussed the importance of pyrazoles and their biological activities; however, few have dealt with the chemistry and the biology of heteroannulated derivatives. Therefore, we focused our attention on recent topics, up until 2020, for the synthesis of pyrazoles, their heteroannulated derivatives, and their applications as biologically active moieties. Moreover, we focused on traditional procedures used in the synthesis of pyrazoles.
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Affiliation(s)
- Mohamed Ramadan
- Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assuit 71524, Egypt;
| | - Ashraf A. Aly
- Chemistry Department, Faculty of Science, Minia University, El-Minia 61519, Egypt;
| | | | - Mohammed B. Alshammari
- Chemistry Department, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, P.O. Box 83, Al-Kharij 11942, Saudi Arabia;
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
- Institute of Biological and Chemical Systems (IBCS-FMS), Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
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7
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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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8
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Discovery of pyrazole derivatives as potent inhibitor of NF-ĸB for possible benefit in abdominal aortic aneurysms. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01707-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Patki AS, Patil KN, Kusuma S, Muley DB, Jadhav AH. One-pot synthesis of multicomponent pyrazole-4-carbonitrile derivatives under solvent-free condition by using engineered polyvinyl alcohol catalyst. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04450-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Sapkal A, Kamble S. Greener and Environmentally Benign Methodology for the Synthesis of Pyrazole Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.202003008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Aboli Sapkal
- Department of Chemistry Yashavantrao Chavan Institute of Science (Autonomous) Satara Maharashtra India
| | - Santosh Kamble
- Department of Chemistry Yashavantrao Chavan Institute of Science (Autonomous) Satara Maharashtra India
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11
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Sapkal A, Kamble S. Sodium toluene‐4‐sulfonate as a reusable and ecofriendly catalyst for greener synthesis of 5‐aminopyrazole‐4‐carbonitrile in aqueous medium. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Aboli Sapkal
- Department of Chemistry Yashavantrao Chavan Institute of Science (Autonomous) Satara India
| | - Santosh Kamble
- Department of Chemistry Yashavantrao Chavan Institute of Science (Autonomous) Satara India
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12
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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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13
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Singh P, Nath M. A Concise Account on Eco-friendly Synthetic Strategies for Pyrazole Heterocycles. CURRENT GREEN CHEMISTRY 2019. [DOI: 10.2174/2213346106666191026094131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Five membered nitrogen heterocycles are historically known to exhibit diverse therapeutic
properties. In particular, the pyrazole analogues have shown a wide range of pharmacological profiles
and a number of drugs containing this scaffold approved for the treatment of various ailments and
disorders. Hence, a lot of efforts have been made to develop efficient synthetic strategies for the
preparation of a variety of pyrazoles in the past several decades. However, this review describes the
environmentally benign protocols for the synthesis of substituted and fused pyrazole molecules.
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Affiliation(s)
- Pargat Singh
- Department of Chemistry, Faculty of Science, University of Delhi, Delhi 110 007, India
| | - Mahendra Nath
- Department of Chemistry, Faculty of Science, University of Delhi, Delhi 110 007, India
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14
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15
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Facile one-pot synthesis of 5-amino-1H-pyrazole-4-carbonitriles using alumina–silica-supported MnO2 as recyclable catalyst in water. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03847-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Sayed GH, Azab ME, Negm NA, Anwer KE. Antimicrobial and Cytotoxic Activities of Some Novel Heterocycles Bearing Pyrazole Moiety. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3196] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Galal H. Sayed
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science; Ain Shams University; Abbassia 11566 Cairo Egypt
| | - Mohammad E. Azab
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science; Ain Shams University; Abbassia 11566 Cairo Egypt
| | - Nabil A. Negm
- Petrochemical Department; Egyptian Petroleum Research Institute; Cairo Egypt
| | - Kurls E. Anwer
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science; Ain Shams University; Abbassia 11566 Cairo Egypt
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17
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Sodium ascorbate as an expedient catalyst for green synthesis of polysubstituted 5-aminopyrazole-4-carbonitriles and 6-amino-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitriles. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3260-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Rai P, Mishra A, Srivastava M, Yadav S, Bhartendu Pati Tripathi, Singh J, Singh J. An Amino Sugar Promoted Green Protocol: A One-Pot, Meglumine-Catalyzed, Multicomponent Strategy for Synthesis of Multifaceted Pyrroloacridin-1(2H)-one Derivatives. ChemistrySelect 2017. [DOI: 10.1002/slct.201601718] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Pratibha Rai
- Department of Chemistry; University of Allahabad; Allahabad U.P.-211002India
| | - Anu Mishra
- Department of Chemistry; University of Allahabad; Allahabad U.P.-211002India
| | | | - Snehlata Yadav
- Department of Chemistry; University of Allahabad; Allahabad U.P.-211002India
| | | | - Jaya Singh
- Department of Chemistry; LRPG College, Sahibabad, Uttar Pradesh
| | - Jagdamba Singh
- Department of Chemistry; University of Allahabad; Allahabad U.P.-211002India
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19
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Esfandiary N, Nakisa A, Azizi K, Azarnia J, Radfar I, Heydari A. Glucose-coated superparamagnetic nanoparticle-catalysed pyrazole synthesis in water. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3641] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | - Athar Nakisa
- Tarbiat Modares University; Tehran PO Box: 14155-4838 Iran
| | - Kobra Azizi
- Tarbiat Modares University; Tehran PO Box: 14155-4838 Iran
| | | | - Iman Radfar
- Tarbiat Modares University; Tehran PO Box: 14155-4838 Iran
| | - Akbar Heydari
- Tarbiat Modares University; Tehran PO Box: 14155-4838 Iran
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20
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[bmim]OH: An efficient catalyst for the synthesis of mono and bis spirooxindole derivatives in ethanol at room temperature. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.01.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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21
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Mishra A, Srivastava M, Rai P, Yadav S, Tripathi BP, Singh J, Singh J. Visible light triggered, catalyst free approach for the synthesis of thiazoles and imidazo[2,1-b]thiazoles in EtOH : H2O green medium. RSC Adv 2016. [DOI: 10.1039/c6ra05385h] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A catalyst free visible light assisted synthesis of thiazoles and imidazo[2,1-b]thiazoles in EtOH : H2O green medium.
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Affiliation(s)
- Anu Mishra
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Madhulika Srivastava
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Pratibha Rai
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Snehlata Yadav
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Bhartendu Pati Tripathi
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Jaya Singh
- Department of Chemistry
- LRPG College
- Sahibabad
- India
| | - Jagdamba Singh
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
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22
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Kumari S, Shekhar A, Pathak DD. Graphene oxide–TiO2 composite: an efficient heterogeneous catalyst for the green synthesis of pyrazoles and pyridines. NEW J CHEM 2016. [DOI: 10.1039/c5nj03380b] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
GO–TiO2 has been found to be a highly efficient and recyclable heterogeneous catalyst for the synthesis of pyrazoles and pyridines in aqueous medium at room temperature.
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Affiliation(s)
- Shweta Kumari
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
| | - Amiya Shekhar
- Department of Chemistry
- Vidya Vihar Institute of Technology
- Purnea-854303
- India
| | - Devendra D. Pathak
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
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23
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Rakhtshah J, Salehzadeh S, Gowdini E, Maleki F, Baghery S, Zolfigol MA. Synthesis of pyrazole derivatives in the presence of a dioxomolybdenum complex supported on silica-coated magnetite nanoparticles as an efficient and easily recyclable catalyst. RSC Adv 2016. [DOI: 10.1039/c6ra20988b] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
A dioxomolybdenum complex supported on functionalized Fe3O4 magnetite nanoparticles as a heterogeneous catalyst was synthesized, characterized and used in the synthesis pyrazole derivatives.
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Affiliation(s)
| | | | - Ehsan Gowdini
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Farahnaz Maleki
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | - Saeed Baghery
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
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24
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Liu M, Li J, Chai H, Zhang K, Yang D, Zhang Q, Shi D. A convenient four-component one-pot strategy toward the synthesis of pyrazolo[3,4-d]pyrimidines. Beilstein J Org Chem 2015; 11:2125-31. [PMID: 26664633 PMCID: PMC4660965 DOI: 10.3762/bjoc.11.229] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 10/29/2015] [Indexed: 01/23/2023] Open
Abstract
An efficient one-pot synthesis of pyrazolo[3,4-d]pyrimidine derivatives by the four-component condensation of hydrazines, methylenemalononitriles, aldehydes and alcohols has been developed via two different reaction pathways. The structures of target products were characterized by IR spectroscopy, NMR (1H and 13C) spectroscopy and HRMS (ESI) spectrometry. The crystal structure of 4-ethoxy-6-(2-nitrophenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine was determined by single crystal X-ray diffraction.
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Affiliation(s)
- Mingxing Liu
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Jiarong Li
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Hongxin Chai
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Kai Zhang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Deli Yang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Qi Zhang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Daxin Shi
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
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25
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Nemati F, Nikkhah SH, Elhampour A. An environmental friendly approach for the catalyst-free synthesis of highly substituted pyrazoles promoted by ultrasonic radiation. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.07.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Yadav S, Rai P, Srivastava M, Singh J, Tiwari KP, Singh J. Atmospheric oxygen mediated synthesis of pyrazole under visible irradiation. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.07.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Rai P, Srivastava M, Yadav S, Singh J, Singh J. β-Cyclodextrin: A Biomimetic Catalyst used for the Synthesis of 4H-chromene-3-carbonitrile and Tetrahydro-1H-xanthen-1-one Derivatives. Catal Letters 2015. [DOI: 10.1007/s10562-015-1588-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Maddila S, Rana S, Pagadala R, Kankala S, Maddila S, Jonnalagadda SB. Synthesis of pyrazole-4-carbonitrile derivatives in aqueous media with CuO/ZrO2 as recyclable catalyst. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2014.12.005] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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29
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Zolfigol MA, Afsharnadery F, Baghery S, Salehzadeh S, Maleki F. Catalytic applications of {[HMIM]C(NO2)3}: as a nano ionic liquid for the synthesis of pyrazole derivatives under green conditions and a mechanistic investigation with a new approach. RSC Adv 2015. [DOI: 10.1039/c5ra16289k] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
1-Methylimidazolium trinitromethanide {[HMIM]C(NO2)3} as a nano structure ionic liquid was applied for the synthesis of pyrazole derivatives with high yields under mild and green conditions.
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Affiliation(s)
| | | | - Saeed Baghery
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
| | | | - Farahnaz Maleki
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan 6517838683
- Iran
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30
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Siddiqui IR, Rai P, Rahila, Srivastava A. Chitosan: an efficient promoter for the synthesis of 2-aminopyrimidine-5-carbonitrile derivatives in solvent free conditions. NEW J CHEM 2014. [DOI: 10.1039/c4nj00199k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Srivastava M, Rai P, Singh J, Singh J. Bmim(OH)/chitosan/C2H5OH synergy: grinding induced, a new route for the synthesis of spiro-oxindole and its derivatives. RSC Adv 2014. [DOI: 10.1039/c4ra03483j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Srivastava M, Rai P, Singh J, Singh J. Efficient iodine-catalyzed one pot synthesis of highly functionalised pyrazoles in water. NEW J CHEM 2014. [DOI: 10.1039/c3nj01149f] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li XT, Zhao AD, Mo LP, Zhang ZH. Meglumine catalyzed expeditious four-component domino protocol for synthesis of pyrazolopyranopyrimidines in aqueous medium. RSC Adv 2014. [DOI: 10.1039/c4ra08689a] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Meglumine has been found to be an efficient catalyst for the synthesis of structurally diverse tricyclic fused pyrazolopyranopyrimidines by one-pot, four-component reaction of ethyl acetoacetate, hydrazine hydrate, aromatic aldehydes and barbituric acid in water.
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Affiliation(s)
- Xiao-Tang Li
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Ai-Dong Zhao
- Testing and Analysis Center
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Li-Ping Mo
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Zhan-Hui Zhang
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
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Rai P, Srivastava M, Singh J, Singh J. Molecular iodine: a green and inclusive catalyst for the synthesis of highly functionalized 1,3,5-trisubstituted pyrazoles in aqueous medium. RSC Adv 2014. [DOI: 10.1039/c3ra44315a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Rai P, Srivastava M, Singh J, Singh J. Chitosan/ionic liquid forms a renewable and reusable catalyst system used for the synthesis of highly functionalized spiro derivatives. NEW J CHEM 2014. [DOI: 10.1039/c3nj01545a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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