1
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Boquet V, Sauber C, Beltran R, Ferey V, Rodier F, Hansjacob P, Theunissen C, Evano G. Copper-Catalyzed Coupling between ortho-Haloanilines and Lactams/Amides: Synthesis of Benzimidazoles and Telmisartan. J Org Chem 2024; 89:5469-5479. [PMID: 38565075 DOI: 10.1021/acs.joc.3c02905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
An efficient copper-catalyzed synthesis of (annelated) benzimidazoles is reported. This transformation is based on a simple and straightforward one-pot sequence involving a copper-catalyzed cross coupling between o-haloanilines and lactams/amides followed by a subsequent cyclization under acidic conditions. A variety of (annelated) benzimidazoles could be easily obtained in high yields from readily available starting materials, and this procedure could be further applied to the synthesis of the antihypertensive blockbuster drug telmisartan.
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Affiliation(s)
- Vincent Boquet
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium
| | - Chris Sauber
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium
| | | | | | - Fabien Rodier
- Sanofi, 45 Chemin de Météline, 04200 Sisteron, France
| | - Pierre Hansjacob
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium
| | - Cédric Theunissen
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium
| | - Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium
- WEL Research Institute, Avenue Pasteur 6, 1300 Wavre, Belgium
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2
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Chung NT, Dung VC, Duc DX. Recent achievements in the synthesis of benzimidazole derivatives. RSC Adv 2023; 13:32734-32771. [PMID: 37942457 PMCID: PMC10628531 DOI: 10.1039/d3ra05960j] [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: 09/01/2023] [Accepted: 10/21/2023] [Indexed: 11/10/2023] Open
Abstract
Benzimidazoles are a class of heterocyclic compounds in which a benzene ring is fused to the 4 and 5 positions of an imidazole ring. Benzimidazole refers to the parent compound, while benzimidazoles are a class of heterocyclic compounds having similar ring structures, but different substituents. Benzimidazole derivatives possess a wide range of bioactivities including antimicrobial, anthelmintic, antiviral, anticancer, and antihypertensive activities. Many compounds possessing a benzimidazole skeleton have been employed as drugs in the market. The application of benzimidazoles in other fields has also been documented. The synthesis of benzimidazole derivatives has attracted much attention from chemists and numerous articles on the synthesis of this class of heterocyclic compound have been reported over the years. The condensation between 1,2-benzenediamine and aldehydes has received intensive interest, while many novel methods have been developed. In this article, we will give a comprehensive review of studies on the synthesis of benzimidazole, which date back to 2013. We have also tried to describe reaction mechanisms as much as we can. The work might be useful for chemists who work in the synthesis of heterocycles or drug chemistry.
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Affiliation(s)
- Nguyen Thi Chung
- Department of Chemistry, Institute of Education, Vinh University 182 Le Duan Street Nghe An 430000 Vietnam
| | - Vo Cong Dung
- Centre for Education Accreditation, Vinh University 182 Le Duan Street Nghe An 430000 Vietnam
| | - Dau Xuan Duc
- Department of Chemistry, Institute of Education, Vinh University 182 Le Duan Street Nghe An 430000 Vietnam
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3
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Basoccu F, Cuccu F, Caboni P, De Luca L, Porcheddu A. Mechanochemistry Frees Thiourea Dioxide (TDO) from the 'Veils' of Solvent, Exposing All Its Reactivity. Molecules 2023; 28:molecules28052239. [PMID: 36903485 PMCID: PMC10005452 DOI: 10.3390/molecules28052239] [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: 01/31/2023] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/04/2023] Open
Abstract
The synthesis of nitrogen-based heterocycles has always been considered essential in developing pharmaceuticals in medicine and agriculture. This explains why various synthetic approaches have been proposed in recent decades. However performing as methods, they often imply harsh conditions or the employment of toxic solvents and dangerous reagents. Mechanochemistry is undoubtedly one of the most promising technologies currently used for reducing any possible environmental impact, addressing the worldwide interest in counteracting environmental pollution. Following this line, we propose a new mechanochemical protocol for synthesizing various heterocyclic classes by exploiting thiourea dioxide (TDO)'s reducing proprieties and electrophilic nature. Simultaneously exploiting the low cost of a component of the textile industry such as TDO and all the advantages brought by a green technique such as mechanochemistry, we plot a route towards a more sustainable and eco-friendly methodology for preparing heterocyclic moieties.
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Affiliation(s)
- Francesco Basoccu
- Department of Chemical and Geological Sciences, University of Cagliari, 09042 Monserrato, Italy
| | - Federico Cuccu
- Department of Chemical and Geological Sciences, University of Cagliari, 09042 Monserrato, Italy
| | - Pietro Caboni
- Department of Chemical and Geological Sciences, University of Cagliari, 09042 Monserrato, Italy
| | - Lidia De Luca
- Department of Chemical, Physical, Mathematical, and Natural Sciences, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Andrea Porcheddu
- Department of Chemical and Geological Sciences, University of Cagliari, 09042 Monserrato, Italy
- Correspondence:
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4
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Gaware S, Chatterjee R, Dhayalan V, Dandela R. Metal-free One-pot Synthesis of 2-Substituted Benzimidazoles from N-Aryl Imines and TMSN3. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Oliaei S, Habibi D, Heydari S, Karamian R, Ranjbar N. Design, preparation, biological investigations and application of a benzoguanamine-based nickel complex for the synthesis of benzimidazoles. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Yoshino J, Kawaguchi S, Takata S, Hayashi N. Triarylboranes Bearing a Benzimidazole or Quinoline Ring Attached to the Boron Atom: Synthesis, π-Conjugation, and Fluorescence. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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7
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Sadhukhan S, Mondal S, Baire B. An unexpected Formation of 2‐Arylbenzimidazoles from α,α‐diiodo‐α’‐acetoxyketones and o‐Phenylenediamines. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Beeraiah Baire
- Indian Institute of Technology, Madras Chemistry CY 209C, Department of ChemsitryIIT Madras, AdyarChennaiIndia 600036 Chennai INDIA
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8
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Synthesis and DFT studies of 1,2-disubstituted benzimidazoles using expeditious and magnetically recoverable CoFe2O4/Cu(OH)2 nanocomposite under solvent-free condition. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Soni JP, Kadagathur M, Shankaraiah N. Recent Updates on Azido‐reductive Cyclization Approaches: Syntheses of
aza
‐Heterocyclic Frameworks. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jay Prakash Soni
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
| | - Manasa Kadagathur
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 India
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10
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Belkharchach S, Ighachane H, Rochdi A, Ait Ali M, Lazrek HB. One-pot Synthesis of Benzimidazoles Using H 2SO 4@HTC as Catalyst. ORG PREP PROCED INT 2021. [DOI: 10.1080/00304948.2021.1873066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Soumia Belkharchach
- Laboratory of Biomolecular and Medicinal Chemistry, Faculty of Science Semlalia, Marrakech, Morocco
| | - Hana Ighachane
- Laboratory of Biomolecular and Medicinal Chemistry, Faculty of Science Semlalia, Marrakech, Morocco
| | - Abdelali Rochdi
- Laboratory of Biomolecular and Medicinal Chemistry, Faculty of Science Semlalia, Marrakech, Morocco
| | - Mustapha Ait Ali
- Laboratory of Coordination Chemistry and Catalysis, Faculty of Science Semlalia, Marrakech, Morocco
| | - Hassan B. Lazrek
- Laboratory of Biomolecular and Medicinal Chemistry, Faculty of Science Semlalia, Marrakech, Morocco
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11
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Mahdavi B, Paydarfard S, Rezaei‐Seresht E, Baghayeri M, Nodehi M. Green synthesis of NiONPs using
Trigonella subenervis
extract and its applications as a highly efficient electrochemical sensor, catalyst, and antibacterial agent. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6264] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Behnam Mahdavi
- Department of Chemistry, Faculty of Science Hakim Sabzevari University Sabzevar 9617976487 Iran
| | - Sogand Paydarfard
- Department of Chemistry, Faculty of Science Hakim Sabzevari University Sabzevar 9617976487 Iran
| | - Esmail Rezaei‐Seresht
- Department of Chemistry, Faculty of Science Hakim Sabzevari University Sabzevar 9617976487 Iran
| | - Mehdi Baghayeri
- Department of Chemistry, Faculty of Science Hakim Sabzevari University Sabzevar 9617976487 Iran
| | - Marzieh Nodehi
- Department of Chemistry, Faculty of Science Hakim Sabzevari University Sabzevar 9617976487 Iran
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12
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Knippel JL, Ye Y, Buchwald SL. Enantioselective C2-Allylation of Benzimidazoles Using 1,3-Diene Pronucleophiles. Org Lett 2021; 23:2153-2157. [PMID: 33646778 DOI: 10.1021/acs.orglett.1c00306] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Although substituted benzimidazoles are common substructures in bioactive small molecules, synthetic methods for their derivatization are still limited. Previously, several enantioselective allylation reactions of benzimidazoles were reported that functionalize the nucleophilic nitrogen atom. Herein we describe a reversal of this inherent selectivity toward N-allylation by using electrophilic N-OPiv benzimidazoles with readily available 1,3-dienes as nucleophile precursors. This CuH-catalyzed approach utilizes mild reaction conditions, exhibits broad functional-group compatibility, and exclusively forms the C2-allylated product with excellent stereoselectivity.
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Affiliation(s)
- James Levi Knippel
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yuxuan Ye
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Stephen L Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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13
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Mohareb RM, Milad YR, Mostafa BM, El-Ansary RA. New Approaches for the Synthesis of Heterocyclic Compounds Corporating Benzo[d]imidazole as Anticancer Agents, Tyrosine, Pim-1 Kinases Inhibitions and their PAINS Evaluations. Anticancer Agents Med Chem 2021; 21:327-342. [PMID: 32698742 DOI: 10.2174/1871520620666200721111230] [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: 04/18/2020] [Revised: 06/08/2020] [Accepted: 06/17/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Benzo[d]imidazoles are highly biologically active, in addition, they are considered as a class of heterocyclic compounds with many pharmaceutical applications. OBJECTIVE We are aiming in this work to synthesize target molecules that possess not only anti-tumor activities but also kinase inhibitors. The target molecules were obtained starting from the benzo[d]imidazole derivatives followed by their heterocyclization reactions to produce anticancer target molecules. METHODS The 1-(1H-benzo[d]imidazol-2-yl)propan-2-one (3) and the ethyl 2-(1H-benzo[d]imidazol-2- yl)acetate (16) were used as the key starting material which reacted with salicylaldehyde to give the corresponding benzo[4,5]imidazo[1,2-a]quinoline derivatives. On the other hand, both of them were reacted with different reagents to give thiophene, pyran and benzo[4,5]imidazo[1,2-c]pyrimidine derivatives. The synthesized compounds were evaluated against the six cancer cell lines A549, HT-29, MKN-45, U87MG, SMMC-7721, and H460 together with inhibitions toward tyrosine kinases, c-Met kinase and prostate cancer cell line PC-3 using the standard MTT assay in vitro, with foretinib as the positive control. RESULTS Most of the synthesized compounds exhibited high inhibitions toward the tested cancer cell lines. In addition, tyrosine and Pim-1 kinases inhibitions were performed for the most active compounds where the variation of substituent through the aryl ring and heterocyclic ring afforded compounds with high activities. Our analysis showed that there is a strong correlation between the structure of the compound and the substituents of target molecules. CONCLUSION Our present research proved that the synthesized heterocyclic compounds with varieties of substituents have a strong impact on the activity of compounds. The evaluations through different cell lines and tyrosine kinases indicated that the compounds were the excellent candidates as anticancer agents. This could encourage doing further research within this field for the building of compounds with high inhibitions.
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Affiliation(s)
- Rafat M Mohareb
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Yara R Milad
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Egypt
| | - Bahaa M Mostafa
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Reem A El-Ansary
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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14
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Skolia E, Apostolopoulou MK, Nikitas NF, Kokotos CG. Photochemical Synthesis of Benzimidazoles from Diamines and Aldehydes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001357] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Elpida Skolia
- Laboratory of Organic Chemistry, Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Mary K. Apostolopoulou
- Laboratory of Organic Chemistry, Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Nikolaos F. Nikitas
- Laboratory of Organic Chemistry, Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Christoforos G. Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
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15
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Abstract
Imines, versatile intermediates for organic synthesis, can be exploited for the
preparation of diverse classes of biologically active benzazoles. Because of the special
characteristics of the C=N bond, imines can be simultaneously used in the synthesis of
1,3-benzazoles and 1,2-benzazoles. With the development of imine synthesis, a variety of
novel cascade reactions for benzazole synthesis have been reported in the last decade.
Therefore, there is a strong need to elucidate the recent progress in the formation of various
classes of benzazoles, including benzimidazoles, benzoxazoles, benzothiazoles, indazoles,
and benzisoxazoles, via imines obtained by condensation reactions or oxidative/
redox coupling reactions In this review, we provide a comprehensive survey of this
area. In particular, various green and mild synthetic methodologies are summarized, and
the multiple roles of novel catalysts and significant mechanisms for several transformations are highlighted in
detail. We believe that this review will aid researchers studying the synthesis of complex molecules containing
the benzazole motif via imines.
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Affiliation(s)
- Ran An
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Mengbi Guo
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yingbo Zang
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hang Xu
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhuang Hou
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chun Guo
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
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16
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Pardeshi VAS, Chundawat NS, Pathan SI, Sukhwal P, Chundawat TPS, Singh GP. A review on synthetic approaches of benzimidazoles. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1841239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | | | | | - Priyal Sukhwal
- Department of Chemistry, Bhupal Nobles’ University, Udaipur, Rajasthan, India
| | | | - Girdhar Pal Singh
- Department of Chemistry, Bhupal Nobles’ University, Udaipur, Rajasthan, India
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17
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Xie Z, Zhou F, Ding K. Copper‐Mediated Diamination of Arylboronic Acids for the Synthesis of 2‐Aryl Benzimidazoles Using Trimethylsilyl Azide as the Amino Sources with Aldehydes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000385] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zeqiang Xie
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education (MOE)Guangzhou City Key Laboratory of Precision Chemical Drug DevelopmentSchool of PharmacyJinan University 601 Huangpu Avenue West Guangzhou 510632 People's Republic of China
| | - Fengtao Zhou
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education (MOE)Guangzhou City Key Laboratory of Precision Chemical Drug DevelopmentSchool of PharmacyJinan University 601 Huangpu Avenue West Guangzhou 510632 People's Republic of China
| | - Ke Ding
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education (MOE)Guangzhou City Key Laboratory of Precision Chemical Drug DevelopmentSchool of PharmacyJinan University 601 Huangpu Avenue West Guangzhou 510632 People's Republic of China
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18
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Basuri P, Gonzalez LE, Morato NM, Pradeep T, Cooks RG. Accelerated microdroplet synthesis of benzimidazoles by nucleophilic addition to protonated carboxylic acids. Chem Sci 2020; 11:12686-12694. [PMID: 34094463 PMCID: PMC8163001 DOI: 10.1039/d0sc02467h] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/13/2020] [Indexed: 12/16/2022] Open
Abstract
We report a metal-free novel route for the accelerated synthesis of benzimidazole and its derivatives in the ambient atmosphere. The synthetic procedure involves 1,2-aromatic diamines and alkyl or aryl carboxylic acids reacting in electrostatically charged microdroplets generated using a nano-electrospray (nESI) ion source. The reactions are accelerated by orders of magnitude in comparison to the bulk. No other acid, base or catalyst is used. Online analysis of the microdroplet accelerated reaction products is performed by mass spectrometry. We provide evidence for an acid catalyzed reaction mechanism based on identification of the intermediate arylamides. Their dehydration to give benzimidazoles occurs in a subsequent thermally enhanced step. It is suggested that the extraordinary acidity at the droplet surface allows the carboxylic acid to function as a C-centered electrophile. Comparisons of this methodology with data from thin film and bulk synthesis lead to the proposal of three key steps in the reaction: (i) formation of an unusual reagent (protonated carboxylic acid) because of the extraordinary conditions at the droplet interface, (ii) accelerated bimolecular reaction because of limited solvation at the interface and (iii) thermally assisted elimination of water. Eleven examples are shown as evidence of the scope of this chemistry. The accelerated synthesis has been scaled-up to establish the substituent-dependence and to isolate products for NMR characterization.
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Affiliation(s)
- Pallab Basuri
- DST Unit of Nanoscience (DST UNS), Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras Chennai 600036 India
| | - L Edwin Gonzalez
- Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Nicolás M Morato
- Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS), Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras Chennai 600036 India
| | - R Graham Cooks
- Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
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19
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Sahiba N, Agarwal DK, Manhas A, Sethiya A, Soni J, Jha PC, Agarwal S. Mechanochemical Approach for the Selective Synthesis of 1,2-Disubstituted Benzimidazoles and Their Molecular Docking Studies. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1768565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nusrat Sahiba
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
| | | | - Anu Manhas
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, India
| | - Ayushi Sethiya
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
| | - Jay Soni
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
| | - Prakash Chandra Jha
- School of Applied Materials Sciences, Central University of Gujarat, Gandhinagar, India
| | - Shikha Agarwal
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
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20
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Saha M, Das AR. Hypervalent iodine promoted ortho diversification: 2-aryl benzimidazole, quinazoline and imidazopyridine as directing templates. Org Biomol Chem 2020; 18:941-955. [PMID: 31922163 DOI: 10.1039/c9ob02533b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mild and efficient palladium-catalyzed ortho C(sp2)-H diversification of (NH)-free 2-substituted benzimidazole, quinazoline, and imidazopyridine is reported using hypervalent iodine as the key reagent. Acetoxy, aryl, iodide and nitro functional groups were introduced on the same substrate by simply shifting the reaction conditions in the presence of inorganic additives (Cs2CO3, I2, NaNO2) and the hypervalent iodine reagent (diacetoxyiodo)benzene (PIDA) under aerobic conditions. The combination of NaNO2 with PIDA was successfully employed in Pd-catalyzed C-H bond nitration to achieve a library of nitrated 1,3 N-heterocycles. This versatile ortho C(sp2)-H activation strategy features operational simplicity, short reaction times, and ample substrate possibilities, it requires no ligands or silver salts as additives, and it shows good tolerance of oxidation prone functional groups.
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Affiliation(s)
- Moumita Saha
- Department of Chemistry, University of Calcutta, Kolkata, West Bengal, India.
| | - Asish R Das
- Department of Chemistry, University of Calcutta, Kolkata, West Bengal, India.
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21
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Singh AV, Jungnickel H, Leibrock L, Tentschert J, Reichardt P, Katz A, Laux P, Luch A. ToF-SIMS 3D imaging unveils important insights on the cellular microenvironment during biomineralization of gold nanostructures. Sci Rep 2020; 10:261. [PMID: 31937806 PMCID: PMC6959255 DOI: 10.1038/s41598-019-57136-w] [Citation(s) in RCA: 25] [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: 08/08/2019] [Accepted: 12/23/2019] [Indexed: 11/09/2022] Open
Abstract
The biomolecular imaging of cell-nanoparticle (NP) interactions using time-of-flight secondary ion mass spectrometry (ToF-SIMS) represents an evolving tool in nanotoxicology. In this study we present the three dimensional (3D) distribution of nanomaterials within biomolecular agglomerates using ToF-SIMS imaging. This novel approach was used to model the resistance of human alveolar A549 cells against gold (Au) ion toxicity through intra- and extracellular biomineralization. At low Au concentrations (≤1 mM HAuCl4) 3D-ToF-SIMS imaging reveals a homogenous intracellular distribution of Au-NPs in combination with polydisperse spherical NPs biomineralized in different layers on the cell surface. However, at higher precursor concentrations (≥2 mM) supplemented with biogenic spherical NPs as seeds, cells start to biosynthesize partially embedded long aspect ratio fiber-like Au nanostructures. Most interestingly, A549 cells seem to be able to sense the enhanced Au concentration. They change the chemical composition of the extracellular NP agglomerates from threonine-O-3-phosphate aureate to an arginine-Au(I)-imine. Furthermore they adopt the extracellular mineralization process from spheres to irregular structures to nanoribbons in a dose-dependent manner with increasing Au concentrations. The results achieved regarding size, shape and chemical specificity were cross checked by SEM-EDX and single particle (sp-)ICP-MS. Our findings demonstrate the potential of ToF-SIMS 3D imaging to better understand cell-NP interactions and their impact in nanotoxicology.
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Affiliation(s)
- Ajay Vikram Singh
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany.
| | - Harald Jungnickel
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Lars Leibrock
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Jutta Tentschert
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Philipp Reichardt
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Aaron Katz
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Peter Laux
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
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22
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Arnold EP, Mondal PK, Schmitt DC. Oxidative Cyclization Approach to Benzimidazole Libraries. ACS COMBINATORIAL SCIENCE 2020; 22:1-5. [PMID: 31860283 DOI: 10.1021/acscombsci.9b00189] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An efficient approach to the parallel synthesis of benzimidazoles from anilines is described. Library approaches to vary the N1 and C2 vectors of benzimidazoles are well established; however, C4-C7 variation has traditionally relied on 1,2-dianiline building blocks, providing limited chemical space coverage. We have developed an amidine formation/oxidative cyclization sequence that enables anilines as a diversity set for benzimidazole C4-C7 SAR generation in parallel format. The amidine annulation was achieved using PIDA or Cu-mediated oxidation to access both N-H and N-alkyl benzimidazoles. This library protocol has now been utilized for analog production in four medicinal chemistry projects. Additionally, the synthesis of aza-benzimidazoles from aminopyridines was achieved via an analogous sequence.
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Affiliation(s)
- Eric P. Arnold
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Prolay K. Mondal
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Daniel C. Schmitt
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
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23
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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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24
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Abdel-Latif E, Metwally HM, Keshk EM, Khalil AGM, Saeed A. An overview on the synthesis and chemical properties of p-aminoacetanilide and its derivatives. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1616302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ehab Abdel-Latif
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Heba M. Metwally
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Eman M. Keshk
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | | | - Ali Saeed
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
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25
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Homaee M, Hamadi H, Nobakht V, Javaherian M, Salahshournia B. Ultrasound-assisted synthesis of UiO-66-NHSO3H via post-synthetic modification as a heterogeneous Brønsted acid catalyst. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Rapolu T, K. V. P. PK, Babu KR, Dende SK, Nimmareddy RR, Reddy LK. Microwave assisted one pot synthesis of 2-ethylamino benzimidazole, benzoxazole and benzothiazole derivatives. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1599952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Thirupathi Rapolu
- Medicinal Chemistry Division, GVK Biosciences Private Limited, Hyderabad, India
- Department of Engineering Chemistry, Andhra University College of Engineering (A), Visakhapatnam, India
| | | | - Korupolu Raghu Babu
- Department of Engineering Chemistry, Andhra University College of Engineering (A), Visakhapatnam, India
| | - Satheesh Kumar Dende
- Medicinal Chemistry Division, GVK Biosciences Private Limited, Hyderabad, India
- Department of Engineering Chemistry, Andhra University College of Engineering (A), Visakhapatnam, India
| | - Rajashekar Reddy Nimmareddy
- Medicinal Chemistry Division, GVK Biosciences Private Limited, Hyderabad, India
- Department of Engineering Chemistry, Andhra University College of Engineering (A), Visakhapatnam, India
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27
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Sharma RK, Yadav S, Sharma S, Dutta S, Sharma A. Expanding the Horizon of Multicomponent Oxidative Coupling Reaction via the Design of a Unique, 3D Copper Isophthalate MOF-Based Catalyst Decorated with Mixed Spinel CoFe 2O 4 Nanoparticles. ACS OMEGA 2018; 3:15100-15111. [PMID: 31458175 PMCID: PMC6643414 DOI: 10.1021/acsomega.8b02061] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 10/25/2018] [Indexed: 05/25/2023]
Abstract
This work discloses the first ever magnetically retrievable copper isophthalate-based metal-organic framework (MOF) decorated with surface-modified cobalt ferrite (CoFe2O4) nanoparticles that have been utilized as catalytic reactors for obtaining a relatively large number of biologically active benzimidazole scaffolds. A facile one-pot solvothermal approach was employed for obtaining spherical and monodisperse CoFe2O4 nanoparticles, which were subsequently modified using suitable protecting and functionalizing agents. Finally, these functionalized magnetic nanoparticles were anchored onto the three-dimensional copper isophthalate MOF via a covalent immobilization methodology. The exploitation of advanced microscopic tools such as transmission electron microscopy and scanning electron microscopy provided valuable insights into the morphology of the immobilized MOF. These results indicated that the surface-modified magnetic nanoparticles had grown onto the surface of copper-5-nitroisophthalic acid MOF. A greener C-H functionalization strategy that involves the multicomponent oxidative cross-coupling between two different set of amines (sp2-hybridized nitrogen-containing anilines and sp3-hybridized nitrogen-containing alkyl/aryl amine derivatives) and sodium azide has been incorporated to provide access to a broad spectrum of the value-added target benzimidazole moieties. It is interesting to note that this magnetic MOF-catalyzed protocol not only replaces toxic solvents with water, which is a green solvent, but also enhances the economic competitiveness since the magnetic catalyst can be readily recovered and recycled for eight consecutive runs.
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Affiliation(s)
- Rakesh K. Sharma
- Department of Chemistry,
Green Chemistry Network Centre, University
of Delhi, New Delhi 110007, India
| | - Sneha Yadav
- Department of Chemistry,
Green Chemistry Network Centre, University
of Delhi, New Delhi 110007, India
| | - Shivani Sharma
- Department of Chemistry,
Green Chemistry Network Centre, University
of Delhi, New Delhi 110007, India
| | - Sriparna Dutta
- Department of Chemistry,
Green Chemistry Network Centre, University
of Delhi, New Delhi 110007, India
| | - Aditi Sharma
- Department of Chemistry,
Green Chemistry Network Centre, University
of Delhi, New Delhi 110007, India
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28
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Balinge KR, Datir SK, Khajone VB, Bhansali KJ, Khiratkar AG, Bhagat PR. Iron(III)–salen complex on a polymer scaffold as heterogeneous catalyst for synthesis of benzimidazoles. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3595-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Saha M, Das AR. I2/TBHP promoted oxidative C–N bond formation at room temperature: Divergent access of 2-substituted benzimidazoles involving ring distortion. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.05.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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30
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Ryu HJ, Yang SJ, Lee GH, Gong YD. Construction of Druglike 2-Amido Benzo[ d]imidazole Analogues via Desulfurative Cyclization of Thiourea Intermediate Resin on Solid-Phase. ACS COMBINATORIAL SCIENCE 2018; 20:282-291. [PMID: 29557646 DOI: 10.1021/acscombsci.8b00004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A 2-amido benzo[ d]imidazole library has been constructed by solid-phase synthesis. The key step of this solid-phase synthesis involves the preparation of polymer-bound 2-amino benzo[ d]imidazole resin through desulfurative cyclization of thiourea resin using 2-chloro-1,3-dimethylimidazolinium chloride and N, N-diisopropylethylamine in dichloromethane (DCM), and the resin is then functionalized by acylation at the 2-amine position to afford 2-amidobenzo[ d]imidazole resin. In the case of 2-amidobenzo[ d]imidazole resin having a p-I or m-NO2, the resin was further functionalized by Suzuki/Sonogashira-coupling ( p-I) and reduction to the primary amine ( m-NO2) followed by acylation. Finally, the functionalized 2-amido-benzo[ d]imidazole resin was cleaved from the polymer support by treatment with a cocktail of trifluoroacetic acid and DCM. As a result, we obtained 2-amidobenzo[ d]imidazole analogues in high yield and good purities.
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Affiliation(s)
- Hyun-Jeong Ryu
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 100-715, Korea
| | - Seung-Ju Yang
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 100-715, Korea
| | - Gee-Hyung Lee
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 100-715, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 100-715, Korea
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31
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Mohareb RM, Abdallah AEM, Mohamed AA. Synthesis of Novel Thiophene, Thiazole and Coumarin Derivatives Based on Benzimidazole Nucleus and Their Cytotoxicity and Toxicity Evaluations. Chem Pharm Bull (Tokyo) 2018; 66:309-318. [PMID: 29491264 DOI: 10.1248/cpb.c17-00922] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The reactivity of compounds 2-(1-(2-chloroacetyl)-1H-benzo[d]imidazol-2-yl)acetonitrile 2 and 3-(1-(2-chloroacetyl)-1H-benzo[d]imidazol-2-yl)-2H-chromen-2-one 8 towards different chemical reagents were studied and a series of novel benzimidazole derivatives were obtained (2-6a-d and 8-12a-d). Moreover, in vitro growth inhibitory effect of the newly synthesized compounds were evaluated in term of [IC50 µM] against the six cancer cell lines, human lung carcinoma (A549), lung cancer (H460), human colorectal (HT29), gasteric cancer cell (MKN-45), glioma cell line (U87MG) and cellosaurus cell line (SMMC-7721) where foretinib was used as standard reference. The results showed that compounds 2 (only for A549 cell line), 3a, 4, 6c, 6d, 8, 9a, 9e and 9f were the most active compounds towards the six cancer cell lines. On the other hand, the toxicity of these most potent compounds against shrimp larvae indicated that compounds 3a, 4, 6d, 9e and 9f were non toxic while compounds 6c and 8 were very toxic and compounds 2 and 9a were harmful against the tested organisms.
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32
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Behrouz S. Copper-doped silica cuprous sulfate: A highly efficient heterogeneous nano-catalyst for one-pot three-component synthesis of 1- H -2-substituted benzimidazoles from 2-bromoanilines, aldehydes, and [bmim]N 3. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2016.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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33
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An efficient NaHSO3-promoted protocol for chemoselective synthesis of 2-substituted benzimidazoles in water. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0367-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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34
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Yoon HJ, Yang SJ, Gong YD. Synthesis of 2-Alkoxy/Thioalkoxy Benzo[d]imidazoles and 2-Thione Benzo[d]imidazoles via a Phase-Based, Chemoselective Reaction. ACS COMBINATORIAL SCIENCE 2017; 19:738-747. [PMID: 29095593 DOI: 10.1021/acscombsci.7b00106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
2-Alkoxy/thioalkoxy benzo-[d]-imidazole and 2-thione benzo-[d]-imidazole libraries were constructed in solution phase and on solid phase, respectively. The key step in this work is the phase-based chemoselective reaction of the 2-mercaptobenzo-[d]-imidazole intermediate with benzyl chloride (solution phase) and Merrifield resin (solid phase). In the solution-phase case, benzyl chloride reacted with the thiol group of 2-mercaptobenzo-[d]-imidazole, whereas in the solid-phase case, Merrifield resin was introduced at an internal amine group of benzo-[d]-imidazole. To afford the desired 2-alkoxy/thioalkoxy benzo-[d]-imidazole analogues, we used various alkyl halides, alcohols, and thiols in solution phase, and to obtain 2-thione benzo-[d]-imidazole derivatives on solid phase, we used diverse alkyl halides and boronic acids. Finally, to measure the drug potential to be orally active and the molecular diversity in three-dimensional (3D) space, we calculated physicochemical properties and displayed energy-minimized 3D structures. As a result, the libraries from solution phase and solid phase show distinct features in physicochemical properties and skeletal diversities in 3D space.
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Affiliation(s)
- Hyo-Jeong Yoon
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Seung-Ju Yang
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
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35
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Mahesh D, Satheesh V, Kumar SV, Punniyamurthy T. Copper(II)-Catalyzed Oxidative Coupling of Anilines, Methyl Arenes, and TMSN3 via C(sp3/sp2)–H Functionalization and C–N Bond Formation. Org Lett 2017; 19:6554-6557. [DOI: 10.1021/acs.orglett.7b03264] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Devulapally Mahesh
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Vanaparthi Satheesh
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Sundaravel Vivek Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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36
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Sharghi H, Shiri P, Aberi M. Five-membered N-Heterocycles Synthesis Catalyzed by Nano-silica Supported Copper(II)–2-imino-1,2-diphenylethan-1-ol Complex. Catal Letters 2017. [DOI: 10.1007/s10562-017-2173-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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37
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Pogula J, Laha S, Likhar PR. Nano Copper(0)-Stabilized on Alumina: Efficient and Recyclable Heterogeneous Catalyst for Chemoselective Synthesis of 1,2-Disubstituted Benzimidazoles and Quinoxalines in Aqueous Medium. Catal Letters 2017. [DOI: 10.1007/s10562-017-2166-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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38
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Narang U, Yadav KK, Bhattacharya S, Chauhan SMS. Cobalt(II) Phthalocyanine Catalyzed One-Pot Synthesis of 2-Substituted Benzimidazoles, Benzothiazoles and Benzoxazoles from Substituted Benzyl Alcohols. ChemistrySelect 2017. [DOI: 10.1002/slct.201701559] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Uma Narang
- Department of Chemistry; University of Delhi; Delhi- 110007
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39
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Ghadari R, Namazi H, Aghazadeh M. Synthesis of graphene oxide supported copper-cobalt ferrite material functionalized by arginine amino acid as a new high-performance catalyst. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3965] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rahim Ghadari
- Department of Organic and Biochemistry, Faculty of Chemistry; University of Tabriz; 5166616471 Tabriz Iran
| | - Hassan Namazi
- Department of Organic and Biochemistry, Faculty of Chemistry; University of Tabriz; 5166616471 Tabriz Iran
| | - Mohammad Aghazadeh
- Microbiology Department, Faculty of Medicine; Tabriz University of Medical Sciences; Tabriz Iran
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40
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Hezarkhani Z, Shaabani A. Au- and Ag-loaded MnO 2
nanostructures supported on nitrogen- and nitrogen-sulfur-doped pyroproteins: Synthesis and catalytic activity in organic transformations. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zeinab Hezarkhani
- Faculty of Chemistry; Shahid Beheshti University, GC; PO Box 19396-4716 Tehran Iran
| | - Ahmad Shaabani
- Faculty of Chemistry; Shahid Beheshti University, GC; PO Box 19396-4716 Tehran Iran
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41
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Ghadari R, Namazi H, Aghazadeh M. Nickel-substituted cobalt ferrite nanoparticles supported on arginine-modified graphene oxide nanosheets: Synthesis and catalytic activity. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3859] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Rahim Ghadari
- Department of Organic and Biochemistry, Faculty of Chemistry; University of Tabriz; 5166616471 Tabriz Iran
| | - Hassan Namazi
- Department of Organic and Biochemistry, Faculty of Chemistry; University of Tabriz; 5166616471 Tabriz Iran
| | - Mohammad Aghazadeh
- Microbiology Department, Faculty of Medicine; Tabriz University of Medical Sciences; Tabriz Iran
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42
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Ghafuri H, Joorabchi N, Emami A, Esmaili Zand HR. Covalent Modification of Graphene Oxide with Vitamin B1: Preparation, Characterization, and Catalytic Reactivity for Synthesis of Benzimidazole Derivatives. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00182] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hossein Ghafuri
- Catalysis and Organic Synthesis Research Laboratory,
Department of Chemistry of Iran, University of Science and Technology, Tehran, 16846_13114, Iran
| | - Negar Joorabchi
- Catalysis and Organic Synthesis Research Laboratory,
Department of Chemistry of Iran, University of Science and Technology, Tehran, 16846_13114, Iran
| | - Atefeh Emami
- Catalysis and Organic Synthesis Research Laboratory,
Department of Chemistry of Iran, University of Science and Technology, Tehran, 16846_13114, Iran
| | - Hamid Reza Esmaili Zand
- Catalysis and Organic Synthesis Research Laboratory,
Department of Chemistry of Iran, University of Science and Technology, Tehran, 16846_13114, Iran
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43
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Ravi O, Shaikh A, Upare A, Singarapu KK, Bathula SR. Benzimidazoles from Aryl Alkyl Ketones and 2-Amino Anilines by an Iodine Catalyzed Oxidative C(CO)–C(alkyl) Bond Cleavage. J Org Chem 2017; 82:4422-4428. [DOI: 10.1021/acs.joc.7b00165] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Owk Ravi
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500607, India
| | - Altab Shaikh
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500607, India
| | - Atul Upare
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500607, India
| | - Kiran Kumar Singarapu
- Centre
for Nuclear Magnetic Resonance, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Surendar Reddy Bathula
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500607, India
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44
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Saha M, Mukherjee P, Das AR. Practical application of PhI(OAc)2/I2 combination to synthesize benzimidazoles from 2-aminobenzylamine through ring distortion strategy. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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45
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Abstract
The azide moiety is a desirable functionality in organic molecules, useful in a variety of transformations such as olefin aziridination, C-H bond amination, isocyanate synthesis, the Staudinger reaction and the formation of azo compounds. To harness the versatility of the azide functionality fully it is important that these compounds be easy to prepare, in a clean and cost-effective manner. Conventional (non-catalysed) methods to synthesise azides generally require quite harsh reaction conditions that are often not tolerant of functional groups. In the last decade, several metal-catalysed azidations have been developed in attempts to circumvent this problem. These methods are generally faster, cleaner and more functional-group-tolerant than conventional methods to prepare azides, and can sometimes even be conveniently combined with one-pot follow-up transformations of the installed azide moiety. This review highlights metal-catalysed approaches to azide synthesis, with a focus on the substrate scopes and mechanisms, as well as on advantages and disadvantages of the methods. Overall, metal-catalysed azidation reactions provide shorter routes to a variety of potentially useful organic molecules containing the azide moiety.
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Affiliation(s)
- Monalisa Goswami
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Bas de Bruin
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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Synthesis, structural and spectroscopic studies of two new benzimidazole derivatives: A comparative study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kovvuri J, Nagaraju B, Kamal A, Srivastava AK. An Efficient Synthesis of 2-Substituted Benzimidazoles via Photocatalytic Condensation of o-Phenylenediamines and Aldehydes. ACS COMBINATORIAL SCIENCE 2016; 18:644-650. [PMID: 27631587 DOI: 10.1021/acscombsci.6b00107] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A photocatalytic method has been developed for the efficient synthesis of functionalized benzimidazoles. This protocol involves photocatalytic condensation of o-phenylenediamines with various aldehydes using the Rose Bengal as photocatalyst. The method was found to be general and was successfully employed for accessing pharmaceutically important benzimidazoles by the condensation of aromatic, heteroaromatic and aliphatic aldehydes with o-phenylenediamines, in good-to-excellent yields. Notably, the method was found to be effective for the condensation of less reactive heterocyclic aldehydes with o-phenylenediamines.
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Affiliation(s)
- Jeshma Kovvuri
- Academy of Scientific and Innovative Research (AcSIR), New Delhi-110025, India
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Burri Nagaraju
- Academy of Scientific and Innovative Research (AcSIR), New Delhi-110025, India
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Ahmed Kamal
- Academy of Scientific and Innovative Research (AcSIR), New Delhi-110025, India
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
- Catalytic
Chemistry Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ajay K. Srivastava
- Academy of Scientific and Innovative Research (AcSIR), New Delhi-110025, India
- Medicinal
Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
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Yu D, You Q, Zhang X, Tao G, Zhang W. CuO nanoparticle-catalyzed diaminations for synthesis of benzimidazole derivatives. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3492] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Dan Yu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu 241000 People's Republic of China
| | - Qing You
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu 241000 People's Republic of China
| | - Xinming Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu 241000 People's Republic of China
| | - Guide Tao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu 241000 People's Republic of China
| | - Wu Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu 241000 People's Republic of China
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Tangella Y, Manasa KL, Sathish M, Alarifi A, Kamal A. Phenyliodonium Diacetate Mediated One-Pot Synthesis of Benzimidazoles and Quinazolinones from Benzylamines. ChemistrySelect 2016. [DOI: 10.1002/slct.201600772] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yellaiah Tangella
- Medicinal Chemistry & Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
- Academy of Scientific and Innovative Research; CSIR-Indian Institute of Chemical Technology; Hyderabad - 500 007 India
| | - Kesari Lakshmi Manasa
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad- 500 037 India
| | - Manda Sathish
- Medicinal Chemistry & Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Abdullah Alarifi
- Catalytic Chemistry Research Chair; Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Ahmed Kamal
- Medicinal Chemistry & Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
- Academy of Scientific and Innovative Research; CSIR-Indian Institute of Chemical Technology; Hyderabad - 500 007 India
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad- 500 037 India
- Catalytic Chemistry Research Chair; Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
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Shaabani A, Hezarkhani Z. Ferrite nanoparticles supported on natural wool in one-pot tandem oxidative reactions: strategy to synthesize benzimidazole, quinazolinone and quinoxaline derivatives. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3542] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry; Shahid Beheshti University; GC PO Box 19396-4716 Tehran Iran
| | - Zeinab Hezarkhani
- Faculty of Chemistry; Shahid Beheshti University; GC PO Box 19396-4716 Tehran Iran
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