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Verma SK, Rangappa S, Verma R, Xue F, Verma S, Sharath Kumar KS, Rangappa KS. Sulfur (S Ⅵ)-containing heterocyclic hybrids as antibacterial agents against methicillin-resistant Staphylococcus aureus (MRSA) and its SAR. Bioorg Chem 2024; 145:107241. [PMID: 38437761 DOI: 10.1016/j.bioorg.2024.107241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/16/2024] [Accepted: 02/23/2024] [Indexed: 03/06/2024]
Abstract
The discovery of new small molecule-based inhibitors is an attractive field in medicinal chemistry. Structurally diversified heterocyclic derivatives have been investigated to combat multi-drug resistant bacterial infections and they offers several mechanism of action. Methicillin-resistant Staphylococcus aureus (MRSA) is becoming more and more deadly to humans because of its simple method of transmission, quick development of antibiotic resistance, and ability to cause hard-to-treat skin and filmy diseases. The sulfur (SVI) particularly sulfonyl and sulfonamide based heterocyclic moieties, have found to be good anti-MRSA agents. The development of new nontoxic, economical and highly active sulfur (SVI) containing derivatives has become hot research topics in drug discovery research. Presently, more than 150 FDA approved Sulfur (SVI)-based drugs are available in the market, and they are widely used to treat various types of diseases with different therapeutic potential. The present collective data provides the latest advancements in Sulfur (SVI)-hybrid compounds as antibacterial agents against MRSA. It also examines the outcomes of in-vitro and in-vivo investigations, exploring potential mechanisms of action and offering alternative perspectives on the structure-activity relationship (SAR). Sulfur (SVI)-hybrids exhibits synergistic effects with existing drugs to provide antibacterial action against MRSA.
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Affiliation(s)
| | - Shobith Rangappa
- Adichunchanagiri Institute for Molecular Medicine, Adichunchanagiri Institute of Medical Sciences, Adichunchanagiri University, B. G. Nagar 571448, India
| | - Rameshwari Verma
- School of New Energy, Yulin University, Yulin 719000, Shaanxi, PR China.
| | - Fan Xue
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin 719000, PR China
| | - Shekhar Verma
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur 495009, Chhattisgarh, India
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2
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Zhao X, Verma R, Sridhara MB, Sharath Kumar KS. Fluorinated azoles as effective weapons in fight against methicillin-resistance staphylococcus aureus (MRSA) and its SAR studies. Bioorg Chem 2024; 143:106975. [PMID: 37992426 DOI: 10.1016/j.bioorg.2023.106975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/22/2023] [Accepted: 11/14/2023] [Indexed: 11/24/2023]
Abstract
The rapid spread of Methicillin-resistant Staphylococcus aureus (MRSA) and its difficult-to-treat skin and filmsy diseases are making MRSA a threat to human life. The most dangerous feature is the fast emergence of MRSA resistance to all recognized antibiotics, including vancomycin. The creation of novel, effective, and non-toxic drug candidates to combat MRSA isolates is urgently required. Fluorine containing small molecules have taken a centre stage in the field of drug development. Over the last 50 years, there have been a growing number of fluorinated compounds that have been approved since the clinical usage of fluorinated corticosteroids in the 1950 s and fluoroquinolones in the 1980 s. Due to its advantages in terms of potency and ADME (absorption, distribution, metabolism, and excretion), fluoro-pharmaceuticals have been regarded as a potent and useful tool in the rational drug design method. The flexible bioactive fluorinated azoles are ideal candidates for the development of new antibiotics. This review summarizes the decade developments of fluorinated azole derivatives with a wide antibacterial activity against diverged MRSA strains. In specific, we correlated the efficacy of structurally varied fluorinated azole analogues including thiazole, benzimidazole, oxadiazole and pyrazole against MRSA and discussed different angles of structure-activity relationship (SAR).
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Affiliation(s)
- Xuanming Zhao
- Energy Engineering College, Yulin University, Yulin City-719000, P. R. China
| | - Rameshwari Verma
- School of New Energy, Yulin University, Yulin 719000, Shaanxi, P. R. China
| | - M B Sridhara
- Department of Chemistry, Rani Channamma University, Vidyasangama, Belagavi 591156, India
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3
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Moradi S, Ardeshiri HH, Gholami A, Ghafuri H. Synthesis and characterization of new biocatalyst based on LDH functionalized with l-asparagine amino acid for the synthesis of tri-substituted derivatives of 2, 4, 5-(H1)-imidazoles. Heliyon 2023; 9:e22185. [PMID: 38053897 PMCID: PMC10694169 DOI: 10.1016/j.heliyon.2023.e22185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 12/07/2023] Open
Abstract
In this study, a new and recyclable biocatalyst (MgAl CO3-LDH@Asn) was synthesized by immobilizing l-asparagine amino acid (Asn) on the surface of 3-(chloropropyl)-trimethoxysilane modified MgAl CO3-layered double hydroxide (LDH). The physicochemical properties of the samples were identified by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and thermogravimetric analysis (TGA) techniques. The MgAl CO3-LDH@Asn was employed in the multi-component assembly process for the synthesis of tri-substituted derivatives of 2,4,5-(H1)-imidazoles from benzyl, various benzaldehyde derivatives, and ammonium acetate. For optimizing the reaction, the main factors, including the amount of MgAl CO3-LDH@Asn, type of solvent, reaction time, and temperature were evaluated. The optimum conditions of the model reaction were achieved using 20 mg of MgAl CO3-LDH@Asn biocatalyst in ethanol solvent after 20 min at reflux temperature. According to the findings above, the results indicated that high-yield products are achieved within a short time frame. Moreover, the high catalytic activity of the MgAl CO3-LDH@Asn was maintained for four cycles without significantly diminishing its performance.
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Affiliation(s)
- Shahram Moradi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Hadi Hassani Ardeshiri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Alireza Gholami
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Hossein Ghafuri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
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Goel KK, Thapliyal S, Kharb R, Joshi G, Negi A, Kumar B. Imidazoles as Serotonin Receptor Modulators for Treatment of Depression: Structural Insights and Structure-Activity Relationship Studies. Pharmaceutics 2023; 15:2208. [PMID: 37765177 PMCID: PMC10535231 DOI: 10.3390/pharmaceutics15092208] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/13/2023] [Accepted: 08/19/2023] [Indexed: 09/29/2023] Open
Abstract
Serotoninergic signaling is identified as a crucial player in psychiatric disorders (notably depression), presenting it as a significant therapeutic target for treating such conditions. Inhibitors of serotoninergic signaling (especially selective serotonin reuptake inhibitors (SSRI) or serotonin and norepinephrine reuptake inhibitors (SNRI)) are prominently selected as first-line therapy for the treatment of depression, which benefits via increasing low serotonin levels and norepinephrine by blocking serotonin/norepinephrine reuptake and thereby increasing activity. While developing newer heterocyclic scaffolds to target/modulate the serotonergic systems, imidazole-bearing pharmacophores have emerged. The imidazole-derived pharmacophore already demonstrated unique structural characteristics and an electron-rich environment, ultimately resulting in a diverse range of bioactivities. Therefore, the current manuscript discloses such a specific modification and structural activity relationship (SAR) of attempted derivatization in terms of the serotonergic efficacy of the resultant inhibitor. We also featured a landscape of imidazole-based development, focusing on SAR studies against the serotoninergic system to target depression. This study covers the recent advancements in synthetic methodologies for imidazole derivatives and the development of new molecules having antidepressant activity via modulating serotonergic systems, along with their SAR studies. The focus of the study is to provide structural insights into imidazole-based derivatives as serotonergic system modulators for the treatment of depression.
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Affiliation(s)
- Kapil Kumar Goel
- Department of Pharmaceutical Sciences, Gurukul Kangri (Deemed to Be University), Haridwar 249404, Uttarakhand, India
| | - Somesh Thapliyal
- Department of Pharmaceutical Sciences, HNB Garhwal University, Chauras Campus, Srinagar Garhwal 246174, Uttarakhand, India (G.J.)
| | - Rajeev Kharb
- Amity Institute of Pharmacy, Amity University, Noida 201313, Uttar Pradesh, India
| | - Gaurav Joshi
- Department of Pharmaceutical Sciences, HNB Garhwal University, Chauras Campus, Srinagar Garhwal 246174, Uttarakhand, India (G.J.)
| | - Arvind Negi
- Department of Bioproduct and Biosystems, Aalto University, 02150 Espoo, Finland
| | - Bhupinder Kumar
- Department of Pharmaceutical Sciences, HNB Garhwal University, Chauras Campus, Srinagar Garhwal 246174, Uttarakhand, India (G.J.)
- Department of Chemistry, Graphic Era (Deemed to Be University), Dehradun 248002, Uttarakhand, India
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Verma SK, Verma R, Girish YR, Verma S, Pramoda K, Vaishnav Y, Saji J, Kumar KSS. Two-dimensional Ti3C2Tx MXenes as a catalyst support for the synthesis of 1,4-disubstituted-1,2,3-triazoles via azide-nitroalkene oxidative cycloaddition. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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6
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Chowdary B N, Preetham HD, Verma SK, Hamse VK, Umashankara M, Raj. S N, Pramoda K, Kumar KSS, Selvi G. A short hydrophobic peptide conjugated 3,5- disubstituted pyrazoles as antibacterial agents with DNA gyrase inhibition. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Girish YR, Kumar BMA, Kumar KSS, Hamse VK, K P, Sudhanva MS, R S. Identification of novel benzimidazole-based small molecule targeting dual targets Tankyrase and Bcl2 to induce apoptosis in Colon cancer. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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8
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Zha GF, Preetham HD, Rangappa S, Sharath Kumar KS, Girish YR, Rakesh KP, Ashrafizadeh M, Zarrabi A, Rangappa KS. Benzimidazole analogues as efficient arsenals in war against methicillin-resistance staphylococcus aureus (MRSA) and its SAR studies. Bioorg Chem 2021; 115:105175. [PMID: 34298242 DOI: 10.1016/j.bioorg.2021.105175] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/11/2021] [Indexed: 12/19/2022]
Abstract
Small molecule based inhibitors development is a growing field in medicinal chemistry. In recent years, different heterocyclic derivatives have been designed to counter the infections caused by multi-drug resistant bacteria. Indeed, small molecule inhibitors can be employed as an efficient antibacterial agents with different mechanism of action. Methicillin-resistant Staphylococcus aureus (MRSA) is becoming lethal to mankind due to easy transmission mode, rapid resistance development to existing antibiotics and affect difficult-to-treat skin and filmsy diseases. Benzimidazoles are a class of heterocyclic compounds which have capability to fight against MRSA. High biocompatibility of benzimidazoles, synergistic behaviour with antibiotics and their tunable physico-chemical properties attracted the researchers to develop new benzimidazole based antibacterial agents. The present review focus on recent developments of benzimidazole-hybrid molecules as anti MRSA agents and the results of in-vitro and in-vivo studies with possible mechanism of action and discussing structure-activity relationship (SAR) in different directions. Benzimdazoles act as DNA binding agents, enzyme inhibitors, anti-biofilm agents and showed synergistic effect with available antibiotics to achieve antibacterial activity against MRSA. This cumulative figures would help to design new benzimidazole-based MRSA growth inhibitors.
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Affiliation(s)
- Gao-Feng Zha
- Scientific Research Centre, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhan 518107, China.
| | - Habbanakuppe D Preetham
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru 570 006, India
| | - Shobith Rangappa
- Adichunchanagiri Institute for Molecular Medicine, Adichunchanagiri Institute of Medical Sciences, Adichunchanagiri University, B. G. Nagar, Nagamangala Taluk, Mandya District 571448, India
| | | | - Yarabahally R Girish
- Centre for Research and Innovations, School of Natural Sciences, BGSIT, Adichunchanagiri University, B. G. Nagara, Mandya, 571448, India
| | - Kadalipura P Rakesh
- School of Material Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Milad Ashrafizadeh
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla, 34956 Istanbul, Turkey; Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, 34956 Istanbul, Turkey
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, 34956 Istanbul, Turkey
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Indalkar K, Malge SS, Mali AS, Chaturbhuj GU. Expeditious and Highly Efficient One-Pot Synthesis of Functionalized Imidazoles Catalyzed by Sulfated Polyborate. ORG PREP PROCED INT 2021. [DOI: 10.1080/00304948.2021.1920304] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Krishna Indalkar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, India
| | - Sanjay S. Malge
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, India
| | - Anil S. Mali
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, India
| | - Ganesh U. Chaturbhuj
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, India
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10
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Verma SK, Verma R, Kumar KSS, Banjare L, Shaik AB, Bhandare RR, Rakesh KP, Rangappa KS. A key review on oxadiazole analogs as potential methicillin-resistant Staphylococcus aureus (MRSA) activity: Structure-activity relationship studies. Eur J Med Chem 2021; 219:113442. [PMID: 33878562 DOI: 10.1016/j.ejmech.2021.113442] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/22/2021] [Accepted: 04/02/2021] [Indexed: 01/03/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is becoming dangerous to human beings due to easy transmission mode and leading to the difficult-to-treat situation. The rapid resistance development of MRSA to many approved antibiotics is of major concern. There is a lot of scope to develop novel, efficient, specific, and nontoxic drug candidates to fight against MRSA isolates. The interesting molecular structure and adaptable feature of oxadiazole moiety which are bioisosteres of esters and amides, and these functional groups show improved resistance to esterases mediated hydrolytic cleavage, attracting researchers to develop required novel antibiotics based on oxadiazole core. This review summarizes the developments of oxadiazole-containing derivatives as potent antibacterial agents against multidrug-resistant MRSA strains and discussing the structure-activity relationship (SAR) in various directions. The current survey is the highlight of the present scenario of oxadiazole hybrids on MRSA studies, covering articles published from 2011 to 2020. This collective information may become a good platform to plan and develop new oxadiazole-based small molecule growth inhibitors of MRSA with minimal side effects.
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Affiliation(s)
- Santosh Kumar Verma
- School of Chemistry and Chemical Engineering, Yulin University, Yulin, 719000, Shaanxi, PR China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin, 719000, Shaanxi, PR China
| | - Rameshwari Verma
- School of Chemistry and Chemical Engineering, Yulin University, Yulin, 719000, Shaanxi, PR China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin, 719000, Shaanxi, PR China.
| | | | - Laxmi Banjare
- School of Pharmaceutical Sciences, Guru Ghasidas Central University, Bilaspur, Koni, 495009, Chhattisgarh, India
| | - Afzal B Shaik
- Department of Pharmaceutical Chemistry, Vignan Pharmacy College, Jawaharlal Nehru Technological University, Vadlamudi, 522213, Andhra Pradesh, India
| | - Richie R Bhandare
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates; Centre of Medical and Bio-allied Health Sciences Research, Ajman Uniersity, Ajman, United Arab Emirates
| | - Kadalipura P Rakesh
- School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, PR China
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11
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Magnetic horsetail plant ash (Fe3O4@HA): a novel, natural and highly efficient heterogeneous nanocatalyst for the green synthesis of 2,4,5-trisubstituted imidazoles. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04420-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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12
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Pyrazole-based analogs as potential antibacterial agents against methicillin-resistance staphylococcus aureus (MRSA) and its SAR elucidation. Eur J Med Chem 2020; 212:113134. [PMID: 33395624 DOI: 10.1016/j.ejmech.2020.113134] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/07/2020] [Accepted: 12/22/2020] [Indexed: 01/01/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is becoming lethal to humanity due to easy transmission and difficult-to-treat skin and flimsy diseases. The most threatening aspect is the rapid resistance development of MRSA to any approved antibiotics, including vancomycin. The development of new, efficient, and nontoxic drug candidate to fight against MRSA isolates is the need of the hour. The intriguing molecular structure and versatile bioactive pyrazole core attracting to development required novel antibiotics. This review presents the decade developments of pyrazole-containing derivatives with a broad antibacterial movement against diverged bacterial strains. In specific, we correlated the efficacy of structurally diversified pyrazole analogs against MRSA and discussed different angles of structure-activity relationship (SAR). The current survey highlights pyrazole hybrids' present scenario on MRSA studies, covering articles published from 2011 to 2020. This collective information may become an excellent platform to plan and develop new pyrazole-based small MRSA growth inhibitors with minimal side effects.
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13
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Zhou C, Lei J, Liu Y, Au C, Chen Y, Yin S. An organoantimony nitrate complex with azastibocine framework as water tolerant Lewis acid catalyst for the synthesis of 1,2‐disubstitued benzimidazoles. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cong Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Jian Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
- School of Medicine Hunan University of Chinese Medicine Changsha 410208 China
- College of Pharmacy Gannan Medical University Ganzhou 341000 China
| | - Yongping Liu
- School of Medicine Hunan University of Chinese Medicine Changsha 410208 China
| | - Chak‐Tong Au
- College of Chemistry and Chemical Engineering Hunan Institute of Engineering Xiangtan 411104 China
| | - Yi Chen
- School of Medicine Hunan University of Chinese Medicine Changsha 410208 China
| | - Shuang‐Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
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14
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Kumar G, Mogha NK, Kumar M, Subodh, Masram DT. NiO nanocomposites/rGO as a heterogeneous catalyst for imidazole scaffolds with applications in inhibiting the DNA binding activity. Dalton Trans 2020; 49:1963-1974. [PMID: 31984397 DOI: 10.1039/c9dt04416g] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Herein, we report a facile approach to synthesize a new highly versatile heterogeneous catalyst by spontaneous aerial oxidation based on nickel oxide nanocomposites immobilized on surface-functionalized reduced graphene oxide sheets. NiO nanocomposite/reduced graphene oxide (rGO-NiO-NC) is a highly efficient, cost-effective, reusable, selective, and eco-friendly nano-catalyst that does not lose any activity even after five reaction cycles. Nickel loading on the rGO-NiO nanocomposite was found to be 3.3 at%, which contributes to the effective and efficient use of rGO-NiO-NCs as a nano-catalyst for the synthesis of imidazole derivatives. Consequently, a series of imidazole derivatives were synthesized, catalyzed by rGO-NiO-NCs, in 60 min with high yields (86% to 96%) under green conditions. Furthermore, the present synthetic methodology was used for the synthesis of highly aromatic imidazole derivatives (B1-B3) whose calf thymus-DNA binding affinities suggest their superior inhibition ability to displace ethidium bromide (EB), which was further confirmed by molecular docking studies. Additionally, the green chemistry matrix of the synthesis reaction was found to be very close to ideal values, such as carbon efficiency (82.32%), E-factor (0.51), atom economy (77.86%), process mass intensity (1.51), and reaction mass efficiency (66.14%).
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Affiliation(s)
- Gyanendra Kumar
- Department of Chemistry, University of Delhi, Delhi-110007, India. dhanraj_masram27@rediff mail.com
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15
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Putta RR, Chun S, Lee SB, Oh DC, Hong S. Iron-Catalyzed Acceptorless Dehydrogenative Coupling of Alcohols With Aromatic Diamines: Selective Synthesis of 1,2-Disubstituted Benzimidazoles. Front Chem 2020; 8:429. [PMID: 32637390 PMCID: PMC7317090 DOI: 10.3389/fchem.2020.00429] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/23/2020] [Indexed: 12/11/2022] Open
Abstract
Benzimidazoles are important N-heteroaromatic compounds with various biological activities and pharmacological applications. Herein, we present the first iron-catalyzed selective synthesis of 1,2-disubstituted benzimidazoles via acceptorless dehydrogenative coupling of primary alcohols with aromatic diamines. The tricarbonyl (η4-cyclopentadienone) iron complex catalyzed dehydrogenative cyclization, releasing water and hydrogen gas as by-products. The earth abundance and low toxicity of iron metal enable the provision of an eco-friendly and efficient catalytic method for the synthesis of benzimidazoles.
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Affiliation(s)
| | - Simin Chun
- BK21 PLUS Project, College of Pharmacy, Seoul National University, Seoul, South Korea
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Seok Beom Lee
- BK21 PLUS Project, College of Pharmacy, Seoul National University, Seoul, South Korea
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Dong-Chan Oh
- BK21 PLUS Project, College of Pharmacy, Seoul National University, Seoul, South Korea
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Suckchang Hong
- BK21 PLUS Project, College of Pharmacy, Seoul National University, Seoul, South Korea
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
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16
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Hypervalent iodine(III) catalyzed rapid and efficient access to benzimidazoles, benzothiazoles and quinoxalines: Biological evaluation of some new benzimidazole-imidazo[1,2-a]pyridine conjugates. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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17
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Wu H, Qiu C, Zhang Z, Zhang B, Zhang S, Xu Y, Zhou H, Su C, Loh KP. Graphene‐Oxide‐Catalyzed Cross‐Dehydrogenative Coupling of Oxindoles with Arenes and Thiophenols. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901224] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Hongru Wu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Chuntian Qiu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Zhaofei Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Bing Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Shaolong Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
- Department of Chemistry, Department of ChemistryNational University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Yangsen Xu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Hongwei Zhou
- College of Biological, Chemical Science and EngineeringJiaxing University 118 Jiahang Road Jiaxing 314001 People's Republic of China
| | - Chenliang Su
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Kian Ping Loh
- Department of Chemistry, Department of ChemistryNational University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
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18
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Singhal S, Khanna P, Panda SS, Khanna L. Recent Trends in the Synthesis of Benzimidazoles From
o
‐Phenylenediamine
via
Nanoparticles and Green Strategies Using Transition Metal Catalysts. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3649] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sugandha Singhal
- University School of Basic and Applied SciencesGuru Gobind Singh Indraprastha University New Delhi 110078 India
| | - Pankaj Khanna
- Department of ChemistryAcharya Narendra Dev College, University of Delhi New Delhi 110019 India
| | - Siva S. Panda
- Department of Chemistry and PhysicsAugusta University Augusta Georgia 30912 USA
| | - Leena Khanna
- University School of Basic and Applied SciencesGuru Gobind Singh Indraprastha University New Delhi 110078 India
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19
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β-CD-SO3H: Synthesis, Characterization and Its Application for the Synthesis of Benzylpyrazolyl Naphthoquinone and Pyrazolo Pyranopyrimidine Derivatives in Water. Catal Letters 2019. [DOI: 10.1007/s10562-019-02928-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Kerru N, Bhaskaruni SVHS, Gummidi L, Maddila SN, Maddila S, Jonnalagadda SB. Recent advances in heterogeneous catalysts for the synthesis of imidazole derivatives. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1639755] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nagaraju Kerru
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | | | - Lalitha Gummidi
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | | | - Suresh Maddila
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
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21
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Kumari S, Shakoor SMA, Markad D, Mandal SK, Sakhuja R. NH
4
OAc‐Promoted Cascade Approach towards Aberrant Synthesis of Chromene‐Fused Quinolinones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801292] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Santosh Kumari
- Department of Chemistry Birla Institute of Technology & Science 333031 Pilani, Rajasthan India
| | - S. M. Abdul Shakoor
- Department of Chemistry Birla Institute of Technology & Science 333031 Pilani, Rajasthan India
| | - Datta Markad
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Sector 81, S.A.S. Nagar, Manuali P.O. 140306 Punjab India
| | - Sanjay K. Mandal
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Sector 81, S.A.S. Nagar, Manuali P.O. 140306 Punjab India
| | - Rajeev Sakhuja
- Department of Chemistry Birla Institute of Technology & Science 333031 Pilani, Rajasthan India
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22
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Bansal R, Soni PK, Halve AK. Green Synthesis of 1,2,4,5-Tetrasubstituted and 2,4,5-Trisubstituted Imidazole Derivatives Involving One-pot Multicomponent Reaction. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3160] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ravi Bansal
- School of Studies in Chemistry; Jiwaji University; Gwalior Madhya Pradesh 474011 India
| | - Pradeep K. Soni
- School of Studies in Chemistry; Jiwaji University; Gwalior Madhya Pradesh 474011 India
| | - Anand K. Halve
- School of Studies in Chemistry; Jiwaji University; Gwalior Madhya Pradesh 474011 India
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23
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Lu Z, Liu Y, Lu S, Li Y, Liu X, Qin Y, Zheng L. A highly selective TPE-based AIE fluorescent probe is developed for the detection of Ag+. RSC Adv 2018; 8:19701-19706. [PMID: 35541010 PMCID: PMC9080746 DOI: 10.1039/c8ra03591a] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 05/22/2018] [Indexed: 11/28/2022] Open
Abstract
The detection of Ag+ in the environment is very important to determine the level of pollution from silver complexes, which have caused various human health problems. Herein, an aggregation-induced emission (AIE) chromophore (tetraphenylethane, TPE) attached to a benzimidazole group (tetra-benzimidazole, TBI–TPE) is synthesized and utilized to detect Ag+ in the environment. The strong chelating effect between the benzimidazole group and Ag+ leads to the formation of aggregates, and strong yellow fluorescence signals were observed after adding Ag+ into a TBI–TPE solution. The stoichiometry of the complex of TBI–TPE and Ag+ was established to be 1 : 2 using photochemical and mass spectra measurements. The detection limit of the Ag+ assay is 90 nM with a linear range from 100 nM to 6 μM. This study provides a facile method to determine Ag+ in real environmental samples with satisfactory results. We develop a highly selective TPE-based AIE fluorescent probe containing a benzimidazole group for the detection of Ag+.![]()
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Affiliation(s)
- Zhixiang Lu
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Yunming Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Shuhan Lu
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Yuan Li
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Xiaolan Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Yu Qin
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Liyan Zheng
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
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24
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Jagadish S, Hemshekhar M, NaveenKumar SK, Sharath Kumar KS, Sundaram MS, Basappa, Girish KS, Rangappa KS. Novel oxolane derivative DMTD mitigates high glucose-induced erythrocyte apoptosis by regulating oxidative stress. Toxicol Appl Pharmacol 2017; 334:167-179. [DOI: 10.1016/j.taap.2017.09.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 09/05/2017] [Accepted: 09/09/2017] [Indexed: 01/02/2023]
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25
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Nejatianfar M, Akhlaghinia B, Jahanshahi R. Cu(II) immobilized on guanidinated epibromohydrin‐functionalized γ‐Fe2O3@TiO2(γ‐Fe2O3@TiO2‐EG‐Cu(II)): A highly efficient magnetically separable heterogeneous nanocatalyst for one‐pot synthesis of highly substituted imidazoles. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4095] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mahdi Nejatianfar
- Department of Chemistry, Faculty of SciencesFerdowsi University of Mashhad Mashhad 9177948974 Iran
| | - Batool Akhlaghinia
- Department of Chemistry, Faculty of SciencesFerdowsi University of Mashhad Mashhad 9177948974 Iran
| | - Roya Jahanshahi
- Department of Chemistry, Faculty of SciencesFerdowsi University of Mashhad Mashhad 9177948974 Iran
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26
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Bai CC, Tian BR, Zhao T, Huang Q, Wang ZZ. Cyclodextrin-Catalyzed Organic Synthesis: Reactions, Mechanisms, and Applications. Molecules 2017; 22:E1475. [PMID: 28880241 PMCID: PMC6151768 DOI: 10.3390/molecules22091475] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/02/2017] [Indexed: 11/16/2022] Open
Abstract
Cyclodextrins are well-known macrocyclic oligosaccharides that consist of α-(1,4) linked glucose units and have been widely used as artificial enzymes, chiral separators, chemical sensors, and drug excipients, owing to their hydrophobic and chiral interiors. Due to their remarkable inclusion capabilities with small organic molecules, more recent interests focus on organic reactions catalyzed by cyclodextrins. This contribution outlines the current progress in cyclodextrin-catalyzed organic reactions. Particular emphases are given to the organic reaction mechanisms and their applications. In the end, the future directions of research in this field are proposed.
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Affiliation(s)
- Chang Cai Bai
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
| | - Bing Ren Tian
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
| | - Tian Zhao
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
| | - Qing Huang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Yinchuan 750004, China.
| | - Zhi Zhong Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Yinchuan 750004, China.
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27
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Girish YR, Pandit S, Pandit S, De M. Graphene Oxide as a Carbocatalyst for a Diels-Alder Reaction in an Aqueous Medium. Chem Asian J 2017; 12:2393-2398. [DOI: 10.1002/asia.201701072] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 08/14/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Yarabhally R. Girish
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 Karnataka India
| | - Subrata Pandit
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 Karnataka India
| | - Subhendu Pandit
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 Karnataka India
| | - Mrinmoy De
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 Karnataka India
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28
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Xu Z, Wang DS, Yu X, Yang Y, Wang D. Tunable Triazole-Phosphine-Copper Catalysts for the Synthesis of 2-Aryl-1H
-benzo[d]imidazoles from Benzyl Alcohols and Diamines by Acceptorless Dehydrogenation and Borrowing Hydrogen Reactions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700179] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Zhaojun Xu
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Duo-Sheng Wang
- Department of Chemistry; University of Chicago; 5735 S. Ellis Avenue Chicago, IL 60637 USA
| | - Xiaoli Yu
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Yongchun Yang
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
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29
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Hanoon HD, Kowsari E, Abdouss M, Ghasemi MH, Zandi H. Highly efficient and simple protocol for synthesis of 2,4,5-triarylimidazole derivatives from benzil using fluorinated graphene oxide as effective and reusable catalyst. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-016-2847-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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30
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Shaabani A, Afshari R, Hooshmand SE. Crosslinked chitosan nanoparticle-anchored magnetic multi-wall carbon nanotubes: a bio-nanoreactor with extremely high activity toward click-multi-component reactions. NEW J CHEM 2017. [DOI: 10.1039/c7nj01150d] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, we have designed a procedure for the synthesis of a bio-nanoreactor catalyst, crosslinked chitosan nanoparticle-anchored magnetic multi-wall carbon nanotubes (CS NPs/MWCNT@Fe3O4), via an in situ ionotropic gelation method.
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Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry
- Shahid Beheshti University
- Tehran
- Iran
| | - Ronak Afshari
- Faculty of Chemistry
- Shahid Beheshti University
- Tehran
- Iran
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31
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Herrera Cano N, Uranga JG, Nardi M, Procopio A, Wunderlin DA, Santiago AN. Selective and eco-friendly procedures for the synthesis of benzimidazole derivatives. The role of the Er(OTf) 3 catalyst in the reaction selectivity. Beilstein J Org Chem 2016; 12:2410-2419. [PMID: 28144309 PMCID: PMC5238590 DOI: 10.3762/bjoc.12.235] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 10/28/2016] [Indexed: 11/23/2022] Open
Abstract
An improved and greener protocol for the synthesis of benzimidazole derivatives, starting from o-phenylenediamine, with different aldehydes is reported. Double-condensation products were selectively obtained when Er(OTf)3 was used as the catalyst in the presence of electron-rich aldehydes. Conversely, the formation of mono-condensation products was the preferred path in absence of this catalyst. One of the major advantages of these reactions was the formation of a single product, avoiding extensive isolation and purification of products, which is frequently associated with these reactions. Theoretical calculations helped to understand the different reactivity established for these reactions. Thus, we found that the charge density on the oxygen of the carbonyl group has a significant impact on the reaction pathway. For instance, electron-rich aldehydes better coordinate to the catalyst, which favours the addition of the amine group to the carbonyl group, therefore facilitating the formation of double-condensation products. Reactions with aliphatic or aromatic aldehydes were possible, without using organic solvents and in a one-pot procedure with short reaction time (2–5 min), affording single products in excellent yields (75–99%). This convenient and eco-friendly methodology offers numerous benefits with respect to other protocols reported for similar compounds.
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Affiliation(s)
- Natividad Herrera Cano
- INFIQC-CONICET and Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, 5000 Argentina
| | - Jorge G Uranga
- INFIQC-CONICET and Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, 5000 Argentina
| | - Mónica Nardi
- Dipartimento di Chimica, Università della Calabria Cubo 12C, 87036-Arcavacata di Rende (CS), Italia
| | - Antonio Procopio
- Dipartimento di Scienze della Salute, Università Magna Graecia, Viale Europa, 88100-Germaneto (CZ), Italia
| | - Daniel A Wunderlin
- ICYTAC-CONICET and Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, 5000 Argentina
| | - Ana N Santiago
- INFIQC-CONICET and Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, 5000 Argentina
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32
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Dekamin MG, Arefi E, Yaghoubi A. Isocyanurate-based periodic mesoporous organosilica (PMO-ICS): a highly efficient and recoverable nanocatalyst for the one-pot synthesis of substituted imidazoles and benzimidazoles. RSC Adv 2016. [DOI: 10.1039/c6ra14550g] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Isocyanurate bridging periodic mesoporous organosilica (PMO-ICS) was shown to be a highly active and efficient recyclable nanocatalyst for three-component synthesis of trisubstituted imidazole as well as benzimidazole derivatives in EtOH.
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Affiliation(s)
- Mohammad G. Dekamin
- Pharmaceutical and Biologically-Active Compounds Research Laboratory
- Department of Chemistry
- Iran University of Science and Technology
- Tehran
- Iran
| | - Elham Arefi
- Pharmaceutical and Biologically-Active Compounds Research Laboratory
- Department of Chemistry
- Iran University of Science and Technology
- Tehran
- Iran
| | - Amene Yaghoubi
- Pharmaceutical and Biologically-Active Compounds Research Laboratory
- Department of Chemistry
- Iran University of Science and Technology
- Tehran
- Iran
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33
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Thimmaraju N, Mohamed Shamshuddin SZ, Pratap SR, Raja K. Efficient microwave synthesis of novel aromatic esters catalyzed by zirconia and its modified forms: a kinetic study. RSC Adv 2015. [DOI: 10.1039/c5ra20430e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A series of solid acids such as ZrO2, 5%Mo(vi)/ZrO2, 10%Mo(vi)/ZrO2, 20%Mo(vi)/ZrO2 and SO42−/ZrO2 were prepared, characterised and used as catalysts in the synthesis of novel esters under microwave irradiation condition.
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Affiliation(s)
- N. Thimmaraju
- Chemistry Research Laboratory
- HMS Institute of Technology
- Tumkur-572104, India
- Research and Development Center
- Bharathiar University
| | - S. Z. Mohamed Shamshuddin
- Chemistry Research Laboratory
- HMS Institute of Technology
- Tumkur-572104, India
- Research and Development Center
- Bharathiar University
| | - S. R. Pratap
- Chemistry Research Laboratory
- HMS Institute of Technology
- Tumkur-572104, India
- Research and Development Center
- Bharathiar University
| | - K. Raja
- Department of Chemistry
- Bangalore University
- Bangalore, India
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