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Nguyen KT, Huynh TNT, Ratanathawornkiti K, Juthathan M, Thamyongkit P, Sukwattanasinitt M, Wacharasindhu S. NaI-Mediated Electrochemical Cyclization-Desulfurization for the Synthesis of N-Substituted 2-Aminobenzimidazoles. J Org Chem 2024; 89:1591-1608. [PMID: 38102091 DOI: 10.1021/acs.joc.3c02212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
An electrochemical method for the synthesis of N-substituted 2-aminobenzimidazoles through a NaI-mediated desulfurization-cyclization process is reported. This electrosynthesis method utilizes cost-effective NaI as both a mediator and an electrolyte in a catalytic amount (0.2 equiv), replacing traditional oxidizing reagents. N-Substituted o-phenylenediamines and isothiocyanates undergo a thiourea formation/cyclization/desulfurization process to provide N-substituted 2-aminobenzimidazoles (55 examples, up to 98% yield) in a single reaction vessel. Importantly, this electrochemical methodology is applicable to gram-scale synthesis, maintaining reaction efficiency.
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Affiliation(s)
- Khuyen Thu Nguyen
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Thao Nguyen Thanh Huynh
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | | | - Methasit Juthathan
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Patchanita Thamyongkit
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | | | - Sumrit Wacharasindhu
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Green Chemistry for Fine Chemical Productions and Environmental Remediation Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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2
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Wanjari PJ, Saha N, Dubey G, Bharatam PV. Metal-free methods for the generation of benzimidazoles and 2-aminobenzimidazoles. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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de la Roche NM, Mühlethaler T, Di Martino RMC, Ortega JA, Gioia D, Roy B, Prota AE, Steinmetz MO, Cavalli A. Novel fragment-derived colchicine-site binders as microtubule-destabilizing agents. Eur J Med Chem 2022; 241:114614. [DOI: 10.1016/j.ejmech.2022.114614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 11/16/2022]
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4
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Han L, Gan L, Hu X, Li W, Zhu D, Zheng J, Wu Y, Yu Y, Gan Z. Cu(OAc) 2 mediated mild synthesis of 2-aminobenzimidazoles and 2-aminobenzoxazoles. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2065509] [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]
Affiliation(s)
- Lei Han
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - LinLing Gan
- Chongqing Engineering Research Center of Pharmaceutical Sciences, School of Pharmacy, Chongqing Medical and Pharmaceutical College, Chongqing, P. R. China
| | - Xiangnan Hu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Wei Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Dali Zhu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Jiecheng Zheng
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Yue Wu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Yu Yu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
| | - Zongjie Gan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, P. R. China
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5
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Vangrunderbeeck S, Balcaen T, Veryser C, Steurs G, De Borggraeve WM. Carbonylation Chemistry Applied to the Synthesis of Benzimidazo[2,1‐
b
]quinazolin‐12‐ones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101136] [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)
- Sarah Vangrunderbeeck
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
| | - Tim Balcaen
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
| | - Cedrick Veryser
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
| | - Gert Steurs
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
| | - Wim M. De Borggraeve
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
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6
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Kumari S, Kumar R, Mazumder A, Salahuddin, Saxena S, Sharma D, Joshi S, Abdullah MM. Recent updates on Synthetic Strategies and Biological Potential of 1,3,4-oxadiazole: Review. LETT ORG CHEM 2021. [DOI: 10.2174/1570178619666211231110106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Among the large variety of nitrogen and oxygen-containing heterocycles, 1,3,4-oxadiazole, the scaffold, has attracted considerable attention owing to its ability to show an extensive range of pharmacological actions. According to literature investigations, prepared 1,3,4-oxadiazole and its derivative are pharmacologically significant and consist of a variety of activities, such as anticonvulsant, anticancer, antioxidant, anti-inflammatory, antibacterial, antidiabetic, etc. These heterocyclics are formed mainly by the cyclization reactions of various reactants under diverse reaction circumstances. Therefore, significant efforts of organic chemists have been directed towards the synthesis of new drug candidates containing 1,3,4-oxadiazole subunits connected to an established potential pharmacophore to improve the efficacy and potency. This article aims to highlight recent publications on the various synthesis techniques of 1,3,4-oxadiazole and related compounds over the previous ten years (2011–2021). The purpose of this review is to help researchers by summarizing several synthetic strategies for synthesizing oxadiazole.
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Affiliation(s)
- Sunita Kumari
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology, (Pharmacy Institute), Greater Noida, India
| | - Rajnish Kumar
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology, (Pharmacy Institute), Greater Noida, India
| | - Avijit Mazumder
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology, (Pharmacy Institute), Greater Noida, India
| | - Salahuddin
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology, (Pharmacy Institute), Greater Noida, India
| | - Shivani Saxena
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology, (Pharmacy Institute), Greater Noida, India
| | - Divya Sharma
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology, (Pharmacy Institute), Greater Noida, India
| | - Sagar Joshi
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology, (Pharmacy Institute), Greater Noida, India
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7
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Shehta W, Assy MG, Ismail NA, Almostafa AM. o-Phenylenediamine as a Source of Fused Azole, Azine, and Diazepine Derivatives. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021070150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Kadagathur M, Shaikh AS, Jadhav GS, Sigalapalli DK, Shankaraiah N, Tangellamudi ND. Cyclodesulfurization: An Enabling Protocol for Synthesis of Various Heterocycles. ChemistrySelect 2021. [DOI: 10.1002/slct.202100201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Manasa Kadagathur
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Arbaz Sujat Shaikh
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Govinda Shivaji Jadhav
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Dilep Kumar Sigalapalli
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Neelima D. Tangellamudi
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
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Cruz A, Martínez IIP, Ramos-Organillo AA. Methods to Access 2-aminobenzimidazoles of Medicinal Importance. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191023150201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:Benzimidazole (BI) and derivatives are interesting because several of these compounds have been found to have a diversity of biological activities with clinical applications. In view of their importance, the synthesis of BI and its derivatives is still considered as a challenge for synthetic chemists. Examples of compounds used in medicinal chemistry containing BI, as important nucleus, are Astemizole (antihistaminic), Omeprazole (antiulcerative) and Rabendazole (fungicide), some of these compounds have the 2- aminobenzimidazole (2ABI) as base nucleus. The structure of 2ABI derivatives contains a cyclic guanidine moiety, which is interesting because of its free lone pairs, labile hydrogen atoms and planar delocalized structure. The delocalized 10-π electron system and the extension of the electron conjugation with the exocyclic amino group, in 2ABI, making these heterocycles to have amphoteric character. The 2ABI has been used as building blocks for the synthesis of several BI derivatives as medicinally important molecules. On these bases, herein, we present a bibliographic review concerning the recent methodologies used in the synthesis of 2ABIs, including the substituted ones.
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Affiliation(s)
- Alejandro Cruz
- Instituto Politécnico Nacional-UPIBI, Laboratorio de Química Supramolecular y Nanociencias, Av. Acueducto s/n, Barrio la Laguna Ticomán, México, D. F, 07340, Mexico
| | - Itzia I. Padilla Martínez
- Instituto Politécnico Nacional-UPIBI, Laboratorio de Química Supramolecular y Nanociencias, Av. Acueducto s/n, Barrio la Laguna Ticomán, México, D. F, 07340, Mexico
| | - Angel A. Ramos-Organillo
- Facultad de Ciencias Químicas, Universidad de Colima, Km 9 Carr. Colima- Coquimatlán, 28400, Coquimatlán, Colima, Mexico
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10
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Nematpour M, Abedi E, Abedi E. A Novel One-pot Protocol for the Cu-Catalyzed Synthesis of Nine 2-Aminobenzimidazole Derivatives from o-Phenylenediamine and Trichloroacetonitrile. LETT ORG CHEM 2019. [DOI: 10.2174/1570178615666180914114010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The synthesis of a variety of 2-aminobenzimidazoles via a one pot reaction of ophenylenediamine
and trichloroacetonitrile catalyzed by copper (II) acetate in THF at room temperature,
with good yields is described. Use of simple and readily available starting materials, good to high
yields, free ligand, and no column chromatography are important features of this protocol.
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Affiliation(s)
- Manijeh Nematpour
- Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Elham Abedi
- Pathology Department, Shiraz University of Medical Siences, Shiraz, Iran
| | - Elahe Abedi
- Department of Food Sciences and Technology, Fasa University, Fasa, Iran
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11
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Barasa L, Yoganathan S. An efficient one-pot conversion of carboxylic acids into benzimidazoles via an HBTU-promoted methodology. RSC Adv 2018; 8:35824-35830. [PMID: 35547918 PMCID: PMC9088178 DOI: 10.1039/c8ra07773h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 10/15/2018] [Indexed: 11/27/2022] Open
Abstract
Benzimidazole is a privileged, and routinely used pharmacophore in the drug discovery process. Herein, we report a mild, acid-free and one-pot synthesis of indole, alkyl and alpha-amino benzimidazoles through a novel HBTU-promoted methodology. An extensive library of indole-carboxylic acids, alkyl carboxylic acids and N-protected alpha-amino acids has been converted into the corresponding benzimidazoles in 80-99% yield. Since alpha-aminobenzimidazoles are highly useful synthons as chiral ligands for chemical catalysis, as well as for drug discovery endeavors, our reported method provides direct access to this scaffold in a simple, one-pot operation from commercially available carboxylic acids.
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Affiliation(s)
- Leonard Barasa
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University Queens NY 11439 USA +1-718-990-5215
| | - Sabesan Yoganathan
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University Queens NY 11439 USA +1-718-990-5215
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12
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Wang Z, Zhao Q, Hou J, Yu W, Chang J. Iodine-mediated direct synthesis of multifunctional 2-aminobenzimidazoles from N-substituted o-diaminoarenes and isothiocyanates. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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Phakhodee W, Duangkamol C, Wiriya N, Pattarawarapan M. Ultrasound-assisted synthesis of substituted 2-aminobenzimidazoles, 2-aminobenzoxazoles, and related heterocycles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.060] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Kumar KA, Kannaboina P, Rao DN, Das P. Nickel-catalyzed Chan–Lam cross-coupling: chemoselective N-arylation of 2-aminobenzimidazoles. Org Biomol Chem 2016; 14:8989-97. [DOI: 10.1039/c6ob01307d] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A complementary set of Ni- and Cu-based catalyst systems for the chemoselective N-arylation of 2-aminobenzimidazoles have been developed.
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Affiliation(s)
- K. Anil Kumar
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Prakash Kannaboina
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - D. Nageswar Rao
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Parthasarathi Das
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu 180001
- India
- Academy of Scientific and Innovative Research (AcSIR)
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15
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Chi Y, Zhang WX, Xi Z. Oxidant-Switchable Selective Synthesis of 2-Aminobenzimidazoles via C–H Amination/Acetoxylation of Guanidines. Org Lett 2014; 16:6274-7. [DOI: 10.1021/ol502815p] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yue Chi
- Beijing
National Laboratory for Molecular Sciences, and Key Laboratory of
Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Wen-Xiong Zhang
- Beijing
National Laboratory for Molecular Sciences, and Key Laboratory of
Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Zhenfeng Xi
- Beijing
National Laboratory for Molecular Sciences, and Key Laboratory of
Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
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Patel KD, Prajapati SM, Panchal SN, Patel HD. Review of Synthesis of 1,3,4-Oxadiazole Derivatives. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.879901] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Kinjal D. Patel
- a Department of Chemistry, School of Sciences , Gujarat University , Ahmedabad , Gujarat , India
| | - Shraddha M. Prajapati
- a Department of Chemistry, School of Sciences , Gujarat University , Ahmedabad , Gujarat , India
| | - Shyamali N. Panchal
- a Department of Chemistry, School of Sciences , Gujarat University , Ahmedabad , Gujarat , India
| | - Hitesh D. Patel
- a Department of Chemistry, School of Sciences , Gujarat University , Ahmedabad , Gujarat , India
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Vidavalur S, Gajula MB, Tadikonda R, Nakka M, Dega S, Yadav SK, Voosala C. PTSA catalyzed straightforward protocol for the synthesis of 2-(N-acyl)aminobenzimidazoles and 2-(N-acyl)aminobenzothiazoles in PEG. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Zhu TH, Wang SY, Wang GN, Ji SJ. Cobalt-Catalyzed Oxidative Isocyanide Insertion to Amine-Based Bisnucleophiles: Diverse Synthesis of Substituted 2-Aminobenzimidazoles, 2-Aminobenzothiazoles, and 2-Aminobenzoxazoles. Chemistry 2013; 19:5850-3. [DOI: 10.1002/chem.201300239] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 02/25/2013] [Indexed: 01/14/2023]
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Ueda S, Buchwald SL. Catalyst-controlled chemoselective arylation of 2-aminobenzimidazoles. Angew Chem Int Ed Engl 2012; 51:10364-7. [PMID: 22969040 DOI: 10.1002/anie.201204710] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Indexed: 01/26/2023]
Affiliation(s)
- Satoshi Ueda
- Department of Chemistry, Room 18-490, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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20
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Ueda S, Buchwald SL. Catalyst-Controlled Chemoselective Arylation of 2-Aminobenzimidazoles. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204710] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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