1
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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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2
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Bano K, Kisan DA, Panda TK. Facile Synthesis of Benzimidazole and Benzothiazole Compounds Mediated by Zinc Precatalyst Supported by Iminopyrrole‐Morpholine Ligand. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kulsum Bano
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 INDIA
| | - Devadkar Ajitrao Kisan
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 Hyderabad INDIA
| | - Tarun K. Panda
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 Hyderabad INDIA
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3
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Singh A, Singh P, Nath M. Bronsted acidic surfactants: efficient organocatalysts for diverse organic transformations. PHYSICAL SCIENCES REVIEWS 2021. [DOI: 10.1515/psr-2021-0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Organic transformations using efficient, atom-economical, cost-effective and environmentally benign strategies for the construction of diversified molecules have attracted synthetic chemists worldwide in recent years. These processes often minimize the waste production and avoid the use of hazardous flammable organic solvents. Among various green protocols, the procedures using surfactant-based catalytic systems have received a considerable attention in organic synthesis. In this context, Bronsted acidic surfactants have emerged as efficient catalysts for various C–C, C–O, C–N and C–S bond forming reactions. Many of these reactions occur in water, as Bronsted acidic surfactants have a unique ability of creating hydrophobic pocket through micelle formation in aqueous medium and the substrate molecules react efficiently to afford the targeted products in good yields. In the past, Bronsted acidic surfactant combined catalysts successfully displayed their potential to accelerate the reaction rates of diverse organic transformations. This chapter presents a complete overview on Bronsted acidic surfactants catalyzed organic reactions to construct a variety of aromatic and heteroaromatic molecular frameworks.
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Affiliation(s)
- Abhijeet Singh
- Department of Chemistry , Faculty of Science, University of Delhi , Delhi 110 007 , India
| | - Pargat Singh
- Department of Chemistry , Faculty of Science, University of Delhi , Delhi 110 007 , India
| | - Mahendra Nath
- Department of Chemistry , Faculty of Science, University of Delhi , Delhi 110 007 , India
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4
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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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5
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Hu X, Lv P, Zhang N, Liu Y. Synthesis of ortho-Diamino-Functionalized 1-Arylnaphthalenes through Nickel-Catalyzed Cyclization of Ynamide-Benzylnitriles with Organoboronic Acids. Org Lett 2021; 23:7949-7954. [PMID: 34553930 DOI: 10.1021/acs.orglett.1c02957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A nickel-catalyzed highly regioselective addition/cyclization of ynamide-benzylnitriles with organoboronic acids has been developed. The reaction offers an attractive route for the construction of diamino-functionalized 1-arylnaphthalenes, which is difficult to synthesize by other methods. In addition, a wide range of functional groups are tolerated in this reaction.
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Affiliation(s)
- Xiaoping Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Peizhuo Lv
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Ninghui Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China.,Department of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
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6
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Godugu K, Yadala VDS, Pinjari MKM, Gundala TR, Sanapareddy LR, Nallagondu CGR. Natural dolomitic limestone-catalyzed synthesis of benzimidazoles, dihydropyrimidinones, and highly substituted pyridines under ultrasound irradiation. Beilstein J Org Chem 2020; 16:1881-1900. [PMID: 32802206 PMCID: PMC7404249 DOI: 10.3762/bjoc.16.156] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/23/2020] [Indexed: 12/21/2022] Open
Abstract
Natural dolomitic limestone (NDL) is employed as a heterogeneous green catalyst for the synthesis of medicinally valuable benzimidazoles, dihydropyrimidinones, and highly functionalized pyridines via C–N, C–C, and C–S bond formations in a mixture of ethanol and H2O under ultrasound irradiation. The catalyst is characterized by XRD, FTIR, Raman spectroscopy, SEM, and EDAX analysis. The main advantages of this methodology include the wide substrate scope, cleaner reaction profile, short reaction times, and excellent isolated yields. The products do not require chromatographic purification, and the catalyst can be reused seven times. Therefore, the catalyst is a greener alternative for the synthesis of the above N-heterocycles compared to the existing reported catalysts.
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Affiliation(s)
- Kumar Godugu
- Department of Chemistry, Green and Sustainable Synthetic Organic Chemistry Laboratory, Yogi Vemana University, Kadapa-516 005, Andhra Pradesh, India
| | - Venkata Divya Sri Yadala
- Department of Chemistry, Green and Sustainable Synthetic Organic Chemistry Laboratory, Yogi Vemana University, Kadapa-516 005, Andhra Pradesh, India
| | - Mohammad Khaja Mohinuddin Pinjari
- Department of Chemistry, Green and Sustainable Synthetic Organic Chemistry Laboratory, Yogi Vemana University, Kadapa-516 005, Andhra Pradesh, India
| | - Trivikram Reddy Gundala
- Department of Chemistry, Green and Sustainable Synthetic Organic Chemistry Laboratory, Yogi Vemana University, Kadapa-516 005, Andhra Pradesh, India
| | | | - Chinna Gangi Reddy Nallagondu
- Department of Chemistry, Green and Sustainable Synthetic Organic Chemistry Laboratory, Yogi Vemana University, Kadapa-516 005, Andhra Pradesh, India
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7
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Alam MT, Maiti S, Mal P. An Intramolecular C(sp2
)-H Amidation Using N
-Iodosuccinimide. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800688] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Md Toufique Alam
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
| | - Saikat Maiti
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
| | - Prasenjit Mal
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
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8
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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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9
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Fricero P, Bialy L, Czechtizky W, Méndez M, Harrity JPA. Synthesis of Bifunctional Thiophenes via Fiesselmann Condensation of Ynone Trifluoroborate Salts. Org Lett 2017; 20:198-200. [DOI: 10.1021/acs.orglett.7b03558] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Prisca Fricero
- Department of Chemistry, University of Sheffield, Brook Hill, S3 7HF, U.K
| | - Laurent Bialy
- Integrated Drug Discovery, Sanofi-Aventis Deutschland GmbH, R&D, Industriepark Höchst, G838, D-65926 Frankfurt Am Main, Germany
| | - Werngard Czechtizky
- Integrated Drug Discovery, Sanofi-Aventis Deutschland GmbH, R&D, Industriepark Höchst, G838, D-65926 Frankfurt Am Main, Germany
| | - María Méndez
- Integrated Drug Discovery, Sanofi-Aventis Deutschland GmbH, R&D, Industriepark Höchst, G838, D-65926 Frankfurt Am Main, Germany
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10
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Sharma R, Abdullaha M, Bharate SB. Metal-Free Ionic-Liquid-Mediated Synthesis of Benzimidazoles and Quinazolin-4(3H
)-ones from Benzylamines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700214] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rohit Sharma
- Medicinal Chemistry Division; Academy of Scientific&Innovative Research (AcSIR); CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
| | - Mohd. Abdullaha
- Medicinal Chemistry Division; Academy of Scientific&Innovative Research (AcSIR); CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
| | - Sandip B. Bharate
- Medicinal Chemistry Division; Academy of Scientific&Innovative Research (AcSIR); CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
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11
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Fricero P, Bialy L, Brown AW, Czechtizky W, Méndez M, Harrity JPA. Synthesis and Modular Reactivity of Pyrazole 5-Trifluoroborates: Intermediates for the Preparation of Fully Functionalized Pyrazoles. J Org Chem 2017; 82:1688-1696. [DOI: 10.1021/acs.joc.6b02847] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Prisca Fricero
- Department
of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Laurent Bialy
- Sanofi-Aventis Deutschland GmbH, R&D, Industriepark Höchst, G838, D-65926 Frankfurt Am Main, Germany
| | - Andrew W. Brown
- Department
of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Werngard Czechtizky
- Sanofi-Aventis Deutschland GmbH, R&D, Industriepark Höchst, G838, D-65926 Frankfurt Am Main, Germany
| | - María Méndez
- Sanofi-Aventis Deutschland GmbH, R&D, Industriepark Höchst, G838, D-65926 Frankfurt Am Main, Germany
| | - Joseph P. A. Harrity
- Department
of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
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12
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Etemadi-Davan E, Iranpoor N, Khalili D. Pd-Catalyzed Reductive Carbonylation-Ring Closure of Aryl Halides: A Direct Approach for Synthesis of Benzimidazoles. ChemistrySelect 2016. [DOI: 10.1002/slct.201600732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Elham Etemadi-Davan
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Nasser Iranpoor
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Dariush Khalili
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
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13
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Ajani OO, Aderohunmu DV, Ikpo CO, Adedapo AE, Olanrewaju IO. Functionalized Benzimidazole Scaffolds: Privileged Heterocycle for Drug Design in Therapeutic Medicine. Arch Pharm (Weinheim) 2016; 349:475-506. [PMID: 27213292 DOI: 10.1002/ardp.201500464] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/14/2016] [Accepted: 04/22/2016] [Indexed: 01/09/2023]
Abstract
Benzimidazole derivatives are crucial structural scaffolds found in diverse libraries of biologically active compounds which are therapeutically useful agents in drug discovery and medicinal research. They are structural isosteres of naturally occurring nucleotides, which allows them to interact with the biopolymers of living systems. Hence, there is a need to couple the latest information with the earlier documentations to understand the current status of the benzimidazole nucleus in medicinal chemistry research. This present work unveils the benzimidazole core as a multifunctional nucleus that serves as a resourceful tool of information for synthetic modifications of old existing candidates in order to tackle drug resistance bottlenecks in therapeutic medicine. This manuscript deals with the recent advances in the synthesis of benzimidazole derivatives, the widespread biological activities as well as pharmacokinetic reports. These present them as a toolbox for fighting infectious diseases and also make them excellent candidates for future drug design.
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Affiliation(s)
- Olayinka O Ajani
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Damilola V Aderohunmu
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
| | - Chinwe O Ikpo
- Department of Chemistry, University of the Western Cape, Bellville, Cape Town, South Africa
| | - Adebusayo E Adedapo
- Department of Chemistry, Covenant University, CST, Canaanland, Ota, Ogun State, Nigeria
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14
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Xu C, Xiao ZQ, Li HM, Han X, Wang ZQ, Fu WJ, Ji BM, Hao XQ, Song MP. Ligand-Free Pd/C-Catalyzed One-Pot, Three-Component Synthesis of Aryl-Substituted Benzimidazoles by Hydrogen-Transfer and Suzuki Reactions in Water. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501169] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Lee YS, Cheon CH. Synthesis of Benzimidazole-Substituted Arylboronic AcidsviaAerobic Oxidation of 1,2-Arylenediamines and Formyl-Substituted Aryl MIDA Boronates using Potassium Iodide as a Catalyst. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500302] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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16
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Girish YR, Sharath Kumar KS, Thimmaiah KN, Rangappa KS, Shashikanth S. ZrO2-β-cyclodextrin catalyzed synthesis of 2,4,5-trisubstituted imidazoles and 1,2-disubstituted benzimidazoles under solvent free conditions and evaluation of their antibacterial study. RSC Adv 2015. [DOI: 10.1039/c5ra13891d] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of 2,4,5-trisubstituted imidazoles and 1,2-disubstituted benzimidazoles catalyzed by ZrO2-supported-β-cyclodextrin (ZrO2-β-CD) under solvent free conditions have been synthesized and characterized by spectral methods.
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Affiliation(s)
- Yarabhally R. Girish
- Department of Studies in Chemistry
- Manasagangotri
- University of Mysore
- Mysore-570006
- India
| | | | | | | | - Sheena Shashikanth
- Department of Studies in Chemistry
- Manasagangotri
- University of Mysore
- Mysore-570006
- India
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17
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Gopalaiah K, Chandrudu SN. Iron(ii) bromide-catalyzed oxidative coupling of benzylamines with ortho-substituted anilines: synthesis of 1,3-benzazoles. RSC Adv 2015. [DOI: 10.1039/c4ra12490a] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An iron(ii) bromide-catalyzed oxidative coupling of benzylamines with 2-amino/hydroxy/mercapto-anilines has been developed, allowing the synthesis of a diversity of substituted 1,3-benzazoles in good to excellent yields.
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18
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Nagasawa Y, Matsusaki Y, Hotta T, Nobuta T, Tada N, Miura T, Itoh A. Aerobic photooxidative synthesis of benzimidazoles from aromatic aldehydes and diamines using catalytic amounts of magnesium iodide. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Burke BP, Clemente GS, Archibald SJ. Boron-18F containing positron emission tomography radiotracers: advances and opportunities. CONTRAST MEDIA & MOLECULAR IMAGING 2014; 10:96-110. [DOI: 10.1002/cmmi.1615] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 06/14/2014] [Accepted: 06/26/2014] [Indexed: 12/27/2022]
Affiliation(s)
- Benjamin P. Burke
- Department of Chemistry; University of Hull; Hull HU6 7RX UK
- Positron Emission Tomography Research Centre; University of Hull; Hull HU6 7RX UK
| | - Gonçalo S. Clemente
- Positron Emission Tomography Research Centre; University of Hull; Hull HU6 7RX UK
| | - Stephen J. Archibald
- Department of Chemistry; University of Hull; Hull HU6 7RX UK
- Positron Emission Tomography Research Centre; University of Hull; Hull HU6 7RX UK
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20
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21
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St. Denis JD, Scully CCG, Lee CF, Yudin AK. Development of the Direct Suzuki–Miyaura Cross-Coupling of Primary B-Alkyl MIDA-boronates and Aryl Bromides. Org Lett 2014; 16:1338-41. [DOI: 10.1021/ol500057a] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jeffrey D. St. Denis
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Conor C. G. Scully
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - C. Frank Lee
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Andrei K. Yudin
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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22
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Synthesis of 2,5-disubstitued benzimidazole using SnCl2-catalyzed reduction system at room temperature. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2013.10.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Banerjee M, Chatterjee A, Kumar V, Bhutia ZT, Khandare DG, Majik MS, Roy BG. A simple and efficient mechanochemical route for the synthesis of 2-aryl benzothiazoles and substituted benzimidazoles. RSC Adv 2014. [DOI: 10.1039/c4ra07058e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
An efficient, catalyst free mechanochemical route to 2-aryl benzothiazoles and both 2- and 1,2-disubstituted benzimidazoles has been developed via a simple mortar–pestle grinding method.
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Affiliation(s)
- Mainak Banerjee
- Department of Chemistry
- BITS, Pilani-K. K. Birla Goa Campus
- Zuarinagar, India
| | - Amrita Chatterjee
- Department of Chemistry
- BITS, Pilani-K. K. Birla Goa Campus
- Zuarinagar, India
| | - Vikash Kumar
- Department of Chemistry
- BITS, Pilani-K. K. Birla Goa Campus
- Zuarinagar, India
| | - Zigmee T. Bhutia
- Department of Chemistry
- BITS, Pilani-K. K. Birla Goa Campus
- Zuarinagar, India
| | | | - Mahesh S. Majik
- Bio-organic Chemistry Laboratory
- CSIR-National Institute of Oceanography
- Dona-Paula, India
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24
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Kumar V, Khandare DG, Chatterjee A, Banerjee M. DBSA mediated chemoselective synthesis of 2-substituted benzimidazoles in aqueous media. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.147] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Düfert MA, Billingsley KL, Buchwald SL. Suzuki-Miyaura cross-coupling of unprotected, nitrogen-rich heterocycles: substrate scope and mechanistic investigation. J Am Chem Soc 2013; 135:12877-85. [PMID: 23909907 DOI: 10.1021/ja4064469] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Suzuki-Miyaura cross-coupling of unprotected, nitrogen-rich heterocycles using precatalysts P1 or P2 is reported. The procedure allows for the reaction of variously substituted indazole, benzimidazole, pyrazole, indole, oxindole, and azaindole halides under mild conditions in good to excellent yields. Additionally, the mechanism behind the inhibitory effect of unprotected azoles on Pd-catalyzed cross-coupling reactions is described based on evidence gained through experimental, crystallographic, and theoretical investigations.
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Affiliation(s)
- M Alexander Düfert
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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26
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Berionni G, Morozova V, Heininger M, Mayer P, Knochel P, Mayr H. Electrophilic Aromatic Substitutions of Aryltrifluoroborates with Retention of the BF3– Group: Quantification of the Activating and Directing Effects of the Trifluoroborate Group. J Am Chem Soc 2013; 135:6317-24. [DOI: 10.1021/ja4017655] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guillaume Berionni
- Department
Chemie, Ludwig−Maximilians−Universität München, Butenandtstr. 5−13
(Haus F), 81377 München (Germany)
| | - Varvara Morozova
- Department
Chemie, Ludwig−Maximilians−Universität München, Butenandtstr. 5−13
(Haus F), 81377 München (Germany)
| | - Maximilian Heininger
- Department
Chemie, Ludwig−Maximilians−Universität München, Butenandtstr. 5−13
(Haus F), 81377 München (Germany)
| | - Peter Mayer
- Department
Chemie, Ludwig−Maximilians−Universität München, Butenandtstr. 5−13
(Haus F), 81377 München (Germany)
| | - Paul Knochel
- Department
Chemie, Ludwig−Maximilians−Universität München, Butenandtstr. 5−13
(Haus F), 81377 München (Germany)
| | - Herbert Mayr
- Department
Chemie, Ludwig−Maximilians−Universität München, Butenandtstr. 5−13
(Haus F), 81377 München (Germany)
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27
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Qu Y, Pan L, Wu Z, Zhou X. Synthesis of benzimidazoles by Cu2O-catalyzed cascade reactions between o-haloaniline and amidine hydrochlorides. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.12.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Zirconyl (IV) Nitrate as Efficient and Reusable Solid Lewis Acid Catalyst for the Synthesis of Benzimidazole Derivatives. J CHEM-NY 2013. [DOI: 10.1155/2013/108318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The present paper introduces a simple and efficient method for the synthesis of substituted benzimidazoles by heterocyclization of differento-phenylenediamines and substituted aromatic carboxylic acid/aldehyde in the presence of zirconyl nitrate as catalyst in ethanol under reflux, which produced excellent yield of corresponding benzimidazoles in a short reaction time with reusability of catalyst.
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29
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Xiao T, Xiong S, Xie Y, Dong X, Zhou L. Copper-catalyzed synthesis of benzazoles via aerobic oxidative condensation of o-amino/mercaptan/hydroxyanilines with benzylamines. RSC Adv 2013. [DOI: 10.1039/c3ra42175a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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30
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Jin X, Liu Y, Lu Q, Yang D, Sun J, Qin S, Zhang J, Shen J, Chu C, Liu R. Formation of CN bonds by the release of H2: a new strategy for synthesis of imines and benzazoles. Org Biomol Chem 2013; 11:3776-80. [DOI: 10.1039/c3ob40388b] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Synthesis of functionalized benzimidazoles and quinoxalines catalyzed by sodium hexafluorophosphate bound Amberlite resin in aqueous medium. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.045] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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