51
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Saikia P, Gogoi S. Isocoumarins: General Aspects and Recent Advances in their Synthesis. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800019] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Pallabi Saikia
- Department of Chemistry; Assam Kaziranga University; Jorhat - 785006 Assam India
| | - Sanjib Gogoi
- Chemical Sciences & Technology Division, CSIR - North East Institute of Science and Technology; AcSIR; Jorhat - 785006 Assam India
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52
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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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53
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Bhagat SB, Ghodse SM, Telvekar VN. Sodium dichloroiodate promoted C-C bond cleavage: An efficient synthesis of 1,3-Benzazoles via condensation of $${\varvec{o}}$$ o -amino/mercaptan/hydroxyanilines with $${\varvec{\beta }}$$ β -diketones. J CHEM SCI 2018. [DOI: 10.1007/s12039-017-1414-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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54
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Chopra R, Kumar M, Bhalla V. Development of a supramolecular ensemble of an AIEE active hexaphenylbenzene derivative and Ag@Cu2O core-shell NPs: an efficient photocatalytic system for C-H activation. Chem Commun (Camb) 2018; 52:10179-82. [PMID: 27464360 DOI: 10.1039/c6cc03956a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A supramolecular ensemble having Ag@Cu2O core-shell nanoparticles stabilized by aggregates of a hexaphenylbenzene derivative has been developed which exhibits excellent photocatalytic efficiency in reactions involving preparation of imidazole and benzimidazole derivatives via C-H activation.
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Affiliation(s)
- Radhika Chopra
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar-143005, Punjab, India.
| | - Manoj Kumar
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar-143005, Punjab, India.
| | - Vandana Bhalla
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar-143005, Punjab, India.
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55
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Fazlinia A, Sheikh S. Preparation of 2-Arylbenzimidazole derivatives using CuO nanoparticles /H2O2 system. INORG NANO-MET CHEM 2018. [DOI: 10.1080/24701556.2017.1358182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Abbas Fazlinia
- Department of Chemistry, Zarghan Branch, Islamic Azad University, Zarghan, Iran
| | - Setareh Sheikh
- Department of Chemistry, Shiraz Branch, Islamic Azad University, Shiraz, Iran
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56
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Guan Q, Sun Q, Wen L, Zha Z, Yang Y, Wang Z. The synthesis of benzimidazoles via a recycled palladium catalysed hydrogen transfer under mild conditions. Org Biomol Chem 2018; 16:2088-2096. [DOI: 10.1039/c8ob00323h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An efficient synthesis of benzimidazoles was developed by virtue of a recycled palladium catalyzed hydrogen transfer.
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Affiliation(s)
- Qianqian Guan
- Hefei National Laboratory for Physical Sciences at Microscale
- Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences
- Collaborative Innovation Center of Suzhou Nano Science and Technology & Department of Chemistry
- University of Science and Technology of China
- Hefei
| | - Qi Sun
- Hefei National Laboratory for Physical Sciences at Microscale
- Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences
- Collaborative Innovation Center of Suzhou Nano Science and Technology & Department of Chemistry
- University of Science and Technology of China
- Hefei
| | - Lixian Wen
- Hefei National Laboratory for Physical Sciences at Microscale
- Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences
- Collaborative Innovation Center of Suzhou Nano Science and Technology & Department of Chemistry
- University of Science and Technology of China
- Hefei
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale
- Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences
- Collaborative Innovation Center of Suzhou Nano Science and Technology & Department of Chemistry
- University of Science and Technology of China
- Hefei
| | - Yu Yang
- Hefei National Laboratory for Physical Sciences at Microscale
- Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences
- Collaborative Innovation Center of Suzhou Nano Science and Technology & Department of Chemistry
- University of Science and Technology of China
- Hefei
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale
- Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences
- Collaborative Innovation Center of Suzhou Nano Science and Technology & Department of Chemistry
- University of Science and Technology of China
- Hefei
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57
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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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58
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Kitanosono T, Masuda K, Xu P, Kobayashi S. Catalytic Organic Reactions in Water toward Sustainable Society. Chem Rev 2017; 118:679-746. [PMID: 29218984 DOI: 10.1021/acs.chemrev.7b00417] [Citation(s) in RCA: 382] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Traditional organic synthesis relies heavily on organic solvents for a multitude of tasks, including dissolving the components and facilitating chemical reactions, because many reagents and reactive species are incompatible or immiscible with water. Given that they are used in vast quantities as compared to reactants, solvents have been the focus of environmental concerns. Along with reducing the environmental impact of organic synthesis, the use of water as a reaction medium also benefits chemical processes by simplifying operations, allowing mild reaction conditions, and sometimes delivering unforeseen reactivities and selectivities. After the "watershed" in organic synthesis revealed the importance of water, the development of water-compatible catalysts has flourished, triggering a quantum leap in water-centered organic synthesis. Given that organic compounds are typically practically insoluble in water, simple extractive workup can readily separate a water-soluble homogeneous catalyst as an aqueous solution from a product that is soluble in organic solvents. In contrast, the use of heterogeneous catalysts facilitates catalyst recycling by allowing simple centrifugation and filtration methods to be used. This Review addresses advances over the past decade in catalytic reactions using water as a reaction medium.
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Affiliation(s)
- Taku Kitanosono
- Department of Chemistry, School of Science, The University of Tokyo , Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Koichiro Masuda
- Department of Chemistry, School of Science, The University of Tokyo , Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Pengyu Xu
- Department of Chemistry, School of Science, The University of Tokyo , Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shu Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo , Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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59
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Yi F, Zhang S, Zhang L, Yi W, Yu R. CuI/I 2-Mediated Intramolecular Oxidative Cyclization Reaction of N-(2-pyridyl)amidines by the Direct Double C−H Functionalization of a C(sp 3)−H Bond. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700442] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Fengping Yi
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; Shanghai 201418 P. R. China
| | - Songxing Zhang
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; Shanghai 201418 P. R. China
| | - Lirong Zhang
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; Shanghai 201418 P. R. China
| | - Weiyin Yi
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; Shanghai 201418 P. R. China
| | - Rui Yu
- School of Resource and Environmental Sciences; Wuhan University; Wuhan HuBei Province 430000 P. R. China
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60
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Wang X, Miao D, Li X, Hu R, Yang Z, Gu R, Han S. Elemental sulfur mediated cyclization via redox strategy: Synthesis of benzothiazoles from o -chloronitrobenzenes and benzyl chlorides. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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61
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Rydfjord J, Skillinghaug B, Brandt P, Odell LR, Larhed M. Route to 3-Amidino Indoles via Pd(II)-Catalyzed C–H Bond Activation. Org Lett 2017; 19:4066-4069. [DOI: 10.1021/acs.orglett.7b01836] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jonas Rydfjord
- Organic
Pharmaceutical Chemistry, Department
of Medicinal Chemistry, and ‡Department of Medicinal Chemistry,
Science for Life Laboratory, Uppsala University, Box-574, SE-751 23 Uppsala, Sweden
| | - Bobo Skillinghaug
- Organic
Pharmaceutical Chemistry, Department
of Medicinal Chemistry, and ‡Department of Medicinal Chemistry,
Science for Life Laboratory, Uppsala University, Box-574, SE-751 23 Uppsala, Sweden
| | - Peter Brandt
- Organic
Pharmaceutical Chemistry, Department
of Medicinal Chemistry, and ‡Department of Medicinal Chemistry,
Science for Life Laboratory, Uppsala University, Box-574, SE-751 23 Uppsala, Sweden
| | - Luke R. Odell
- Organic
Pharmaceutical Chemistry, Department
of Medicinal Chemistry, and ‡Department of Medicinal Chemistry,
Science for Life Laboratory, Uppsala University, Box-574, SE-751 23 Uppsala, Sweden
| | - Mats Larhed
- Organic
Pharmaceutical Chemistry, Department
of Medicinal Chemistry, and ‡Department of Medicinal Chemistry,
Science for Life Laboratory, Uppsala University, Box-574, SE-751 23 Uppsala, Sweden
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62
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Novel Thiazolo[5,4-b]phenothiazine Derivatives: Synthesis, Structural Characterization, and In Vitro Evaluation of Antiproliferative Activity against Human Leukaemia. Int J Mol Sci 2017; 18:ijms18071365. [PMID: 28672876 PMCID: PMC5535858 DOI: 10.3390/ijms18071365] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/10/2017] [Accepted: 06/16/2017] [Indexed: 02/06/2023] Open
Abstract
The molecular frame of the reported series of new polyheterocyclic compounds was intended to combine the potent phenothiazine and benzothiazole pharmacophoric units. The synthetic strategy applied was based on oxidative cyclization of N-(phenothiazin-3-yl)-thioamides and it was validated by the preparation of new 2-alkyl- and 2-aryl-thiazolo[5,4-b]phenothiazine derivatives. Optical properties of the series were experimentally emphasized by UV-Vis absorption/emission spectroscopy and structural features were theoretically modelled using density functional theory (DFT). In vitro activity as antileukemic agents of thiazolo[5,4-b]phenothiazine and N-(phenothiazine-3-yl)-thioamides were comparatively evaluated using cultivated HL-60 human promyelocytic and THP-1 human monocytic leukaemia cell lines. Some representatives proved selectivity against tumour cell lines, cytotoxicity, apoptosis induction, and cellular metabolism impairment capacity. 2-Naphthyl-thiazolo[5,4-b]phenothiazine was identified as the most effective of the series by displaying against THP-1 cell lines a cytotoxicity close to cytarabine antineoplastic agent.
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63
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Brătulescu G. Mild, one-pot preparation of 2-substituted benzimidazoles from organic halides. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1287922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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64
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Copper-catalyzed Direct 2-Arylation of Benzoxazoles and Benzoimidazoles with Aryl Bromides and Cytotoxicity of Products. Sci Rep 2017; 7:43758. [PMID: 28256577 PMCID: PMC5335610 DOI: 10.1038/srep43758] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 01/26/2017] [Indexed: 01/25/2023] Open
Abstract
An efficient copper-catalyzed direct 2-arylation of benzoxazoles and benzoimidazoles with aryl bromides is presented. The CuI/PPh3-based catalyst promotes the installation of various aryl and heteroaryl groups through a C-H activation process in good to excellent yields. The cytotoxicity of obtained 2-aryl benzoxazoles (benzoimidazoles) was also evaluated and 1-methyl-2-(naphthalen-1-yl)benzoimidazole showed potential cytotoxicity.
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65
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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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66
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Guo S, Zhai J, Fan X. An I 2-mediated cascade reaction of 2'-bromoacetophenones with benzohydrazides/benzamides leading to quinazolino[3,2-b]cinnoline or tryptanthrin derivatives. Org Biomol Chem 2017; 15:1521-1529. [PMID: 28116380 DOI: 10.1039/c6ob02699k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and facile protocol for the synthesis of quinazolinone-fused tetracyclic compounds through an iodine-mediated one-pot cascade reaction of 2'-bromoacetophenones with 2-aminobenzohydrazides or 2-aminobenzamides is reported. With 2-aminobenzohydrazides as the substrates, the reaction gave 5H-quinazolino[3,2-b]cinnoline-7,13-diones in moderate to good yields under metal-catalyst-free conditions. With 2-aminobenzamides as the substrates and CuBr as the catalyst, on the other hand, it afforded tryptanthrin derivatives with good efficiency. Mechanistically, the formation of the tetracyclic systems is initiated by iodination and oxidation of 2'-bromoacetophenones followed by a cascade procedure consisting of cyclocondensation, aromatization and intramolecular cyclization of the in situ formed 2-bromoarylglyoxals with 2-aminobenzohydrazides or 2-aminobenzamides, respectively.
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Affiliation(s)
- Shenghai Guo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Jianhui Zhai
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Xuesen Fan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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67
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Wang D, Zheng Y, Yang M, Zhang F, Mao F, Yu J, Xia X. Room-temperature Cu-catalyzed N-arylation of aliphatic amines in neat water. Org Biomol Chem 2017; 15:8009-8012. [DOI: 10.1039/c7ob02126g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A room-temperature copper-catalyzed N-arylation of aliphatic amines with great selectivity and substrate scope tolerance in neat water has been developed.
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Affiliation(s)
- Deping Wang
- College of Chemistry and Materials Science
- Hengyang Normal University
- Hengyang 421008
- China
| | - Yanwen Zheng
- College of Chemistry and Materials Science
- Hengyang Normal University
- Hengyang 421008
- China
| | - Min Yang
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- China
| | - Fuxing Zhang
- College of Chemistry and Materials Science
- Hengyang Normal University
- Hengyang 421008
- China
| | - Fangfang Mao
- College of Chemistry and Materials Science
- Hengyang Normal University
- Hengyang 421008
- China
| | - Jiangxi Yu
- College of Chemistry and Materials Science
- Hengyang Normal University
- Hengyang 421008
- China
| | - Xiaohong Xia
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- China
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68
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Xu F, Kang WF, Wang XN, Kou HD, Jin Z, Liu CS. Synergic effect of copper-based metal–organic frameworks for highly efficient C–H activation of amidines. RSC Adv 2017. [DOI: 10.1039/c7ra10682c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Cu–MOF-catalyzed C–H functionalization of substituted amidines was developed for the facile and efficient synthesis of benzimidazoles.
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Affiliation(s)
- Fen Xu
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Wei-Fen Kang
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Xiao-Ning Wang
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Hao-Dong Kou
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Zhen Jin
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Chun-Sen Liu
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
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69
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Bollenbach M, Wagner P, Aquino PGV, Bourguignon JJ, Bihel F, Salomé C, Schmitt M. d-Glucose: An Efficient Reducing Agent for a Copper(II)-Mediated Arylation of Primary Amines in Water. CHEMSUSCHEM 2016; 9:3244-3249. [PMID: 27781418 DOI: 10.1002/cssc.201600801] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Indexed: 06/06/2023]
Abstract
A copper-catalyzed Ullmann-type amination with primary amines in water with a combination of copper(II) triflate [Cu(OTf)2 ], dipivaloylmethane, and d-glucose is reported. The mild conditions and the use of an inexpensive catalyst as well as a renewable feedstock (d-glucose and the surfactant TPGS-750-M, which is derived from vitamin E) make this protocol a safe and convenient strategy for efficient C-N bond formation. This easy-to-handle procedure is extremely competitive compared to palladium-based reactions and may be used to synthesize N-containing molecules, such as drugs or organic light-emitting diodes (OLEDs).
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Affiliation(s)
- Maud Bollenbach
- Laboratoire d'Innovation Thérapeutique, University of Strasbourg, 74 route du Rhin, BP60024, 67401, Illkirch, France
| | - Patrick Wagner
- Laboratoire d'Innovation Thérapeutique, University of Strasbourg, 74 route du Rhin, BP60024, 67401, Illkirch, France
| | - Pedro G V Aquino
- Laboratoire d'Innovation Thérapeutique, University of Strasbourg, 74 route du Rhin, BP60024, 67401, Illkirch, France
- Laboratório de Pesquisa em Recursos Naturais, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Jean-Jacques Bourguignon
- Laboratoire d'Innovation Thérapeutique, University of Strasbourg, 74 route du Rhin, BP60024, 67401, Illkirch, France
| | - Frédéric Bihel
- Laboratoire d'Innovation Thérapeutique, University of Strasbourg, 74 route du Rhin, BP60024, 67401, Illkirch, France
| | - Christophe Salomé
- Laboratoire d'Innovation Thérapeutique, University of Strasbourg, 74 route du Rhin, BP60024, 67401, Illkirch, France
- SpiroChem AG, c/o ETH-Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Martine Schmitt
- Laboratoire d'Innovation Thérapeutique, University of Strasbourg, 74 route du Rhin, BP60024, 67401, Illkirch, France
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70
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Youn SW, Lee EM. Metal-Free One-Pot Synthesis of N,N′-Diarylamidines and N-Arylbenzimidazoles from Arenediazonium Salts, Nitriles, and Free Anilines. Org Lett 2016; 18:5728-5731. [DOI: 10.1021/acs.orglett.6b02994] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- So Won Youn
- Center for New Directions
in Organic Synthesis, Department of Chemistry and Institute for Material
Design, Hanyang University, Seoul 04763, Korea
| | - Eun Mi Lee
- Center for New Directions
in Organic Synthesis, Department of Chemistry and Institute for Material
Design, Hanyang University, Seoul 04763, Korea
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71
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Majumdar S, Chakraborty A, Bhattacharjee S, Debnath S, Maiti DK. Silica–ferric chloride (SiO2–FeCl3) catalyzed selective synthesis of 2-substituted benzimidazole through Csp2Csp3 bond cleavage of β-ketoester/amide. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.099] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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72
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Roy P, Bodhak C, Pramanik A. Synthesis of amino ester-embedded benzimidazoles: a one-pot sequential protocol under metal-free neutral conditions. Mol Divers 2016; 21:89-100. [PMID: 27677738 DOI: 10.1007/s11030-016-9701-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 09/06/2016] [Indexed: 11/30/2022]
Abstract
A one-pot three-component protocol has been developed for the synthesis of amino ester-embedded benzimidazoles under metal-free neutral conditions. Sequentially, the methodology involves coupling of an amino ester with 1-fluoro-2-nitrobenzene, reduction of the coupled nitroarene by sodium dithionite, and cyclization of the corresponding diamine with an aldehyde.
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Affiliation(s)
- Priyabrata Roy
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, 700009, India.,Department of Chemistry, Victoria Institution (College), 78B, A.P.C. Road, Kolkata, 700009, India
| | - Chandan Bodhak
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, 700009, India
| | - Animesh Pramanik
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, 700009, India.
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73
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Thimmaraju N, Shamshuddin SZM, Pratap SR, Raja K, Shyamsundar M, Mohankumar TE. Simple but efficient synthesis of novel substituted benzimidazoles over ZrO2-Al2O3. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1215468] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- N. Thimmaraju
- Chemistry Research Laboratory, HMS Institute of Technology, Tumkur, Karnataka, India
- Research and Development Center, Bharathiar University, Coimbatore, India
| | - S. Z. Mohamed Shamshuddin
- Chemistry Research Laboratory, HMS Institute of Technology, Tumkur, Karnataka, India
- Research and Development Center, Bharathiar University, Coimbatore, India
| | - S. R. Pratap
- Chemistry Research Laboratory, HMS Institute of Technology, Tumkur, Karnataka, India
- Research and Development Center, Bharathiar University, Coimbatore, India
| | - K. Raja
- Department of Chemistry, Bangalore University, Bangalore, India
| | - M. Shyamsundar
- Chemistry Research Laboratory, HMS Institute of Technology, Tumkur, Karnataka, India
- Research and Development Center, Bharathiar University, Coimbatore, India
| | - T. E. Mohankumar
- Chemistry Research Laboratory, HMS Institute of Technology, Tumkur, Karnataka, India
- Research and Development Center, Bharathiar University, Coimbatore, India
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74
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Gazzola S, Beccalli EM, Bernasconi A, Borelli T, Broggini G, Mazza A. Palladium-Catalysed Carbo- and Hydroamination of Allenyl Ethers and Aminoallenes: Available Entry to Nitrogen-Containing Benzo-Fused Rings. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600720] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Silvia Gazzola
- Dipartimento di Scienza e Alta Tecnologia; Università degli Studi dell'Insubria; Via Valleggio 9 22100 Como Italy
| | - Egle M. Beccalli
- DISFARM; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
| | - Alice Bernasconi
- DISFARM; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
| | - Tea Borelli
- Dipartimento di Scienza e Alta Tecnologia; Università degli Studi dell'Insubria; Via Valleggio 9 22100 Como Italy
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia; Università degli Studi dell'Insubria; Via Valleggio 9 22100 Como Italy
| | - Alberto Mazza
- DISFARM; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
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75
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Liu J, Wang C, Ma X, Shi X, Wang X, Li H, Xu Q. Simple Synthesis of Benzazoles by Substrate-Promoted CuI-Catalyzed Aerobic Oxidative Cyclocondensation of o-Thio/Amino/Hydroxyanilines and Amines under Air. Catal Letters 2016. [DOI: 10.1007/s10562-016-1818-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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76
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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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77
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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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78
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Gan H, Miao D, Pan Q, Hu R, Li X, Han S. S8-Mediated Cyclization of 2-Aminophenols/thiophenols with Arylmethyl Chloride: Approach to Benzoxazoles and Benzothiazoles. Chem Asian J 2016; 11:1770-4. [DOI: 10.1002/asia.201600355] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 04/12/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Haifeng Gan
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing Jiangsu 211816 P. R. China
| | - Dazhuang Miao
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing Jiangsu 211816 P. R. China
| | - Qiang Pan
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing Jiangsu 211816 P. R. China
| | - Renhe Hu
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing Jiangsu 211816 P. R. China
| | - Xiaotong Li
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing Jiangsu 211816 P. R. China
| | - Shiqing Han
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing Jiangsu 211816 P. R. China
- Key Laboratory of Synthetic Chemistry of Natural Substances; Shanghai Institute of Organic Chemistry, CAS; Shanghai 200032 P. R. China
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79
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Lai YL, Ye JS, Huang JM. Electrochemical Synthesis of Benzazoles from Alcohols and o
-Substituted Anilines with a Catalytic Amount of CoII
Salt. Chemistry 2016; 22:5425-9. [DOI: 10.1002/chem.201505074] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Indexed: 12/12/2022]
Affiliation(s)
- Yin-Long Lai
- School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou Guangdong 510640 P. R. China
| | - Jian-Shan Ye
- School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou Guangdong 510640 P. R. China
| | - Jing-Mei Huang
- School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou Guangdong 510640 P. R. China
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80
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Kongkaew M, Sitthisuwannakul K, Nakarajouyphon V, Pornsuwan S, Kongsaeree P, Sangtrirutnugul P. Benzimidazole–triazole ligands with pendent triazole functionality: unexpected formation and effects on copper-catalyzed aerobic alcohol oxidation. Dalton Trans 2016; 45:16810-16819. [DOI: 10.1039/c6dt02770a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Benzimidazole–triazole based ligands, prepared from cyclization of amine–triazoles, produce active Cu catalysts for aerobic alcohol oxidation.
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Affiliation(s)
- Manisa Kongkaew
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok
| | - Kannika Sitthisuwannakul
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok
| | - Vasut Nakarajouyphon
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok
| | - Soraya Pornsuwan
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok
| | - Palangpon Kongsaeree
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok
| | - Preeyanuch Sangtrirutnugul
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok
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81
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Baburajeev CP, Mohan CD, Patil GS, Rangappa S, Pandey V, Sebastian A, Fuchs JE, Bender A, Lobie PE, Basappa B, Rangappa KS. Nano-cuprous oxide catalyzed one-pot synthesis of a carbazole-based STAT3 inhibitor: a facile approach via intramolecular C–N bond formation reactions. RSC Adv 2016. [DOI: 10.1039/c6ra01906d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
In this study, we report the one-pot synthesis of substituted carbazole derivatives using nano cuprous oxide as a catalyst and demonstrated the STAT3 inhibitory activity of new compounds.
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Affiliation(s)
- C. P. Baburajeev
- Laboratory of Chemical Biology
- Department of Chemistry
- Bangalore University
- Bangalore 560001
- India
| | | | | | - Shobith Rangappa
- Frontier Research Center for Post-Genome Science and Technology
- Hokkaido University
- Sapporo 060-0808
- Japan
| | - Vijay Pandey
- Cancer Science Institute of Singapore
- National University of Singapore
- Singapore 117599
| | - Anusha Sebastian
- Laboratory of Chemical Biology
- Department of Chemistry
- Bangalore University
- Bangalore 560001
- India
| | - Julian E. Fuchs
- Centre for Molecular Informatics
- Department of Chemistry
- University of Cambridge
- Cambridge
- UK
| | - Andreas Bender
- Centre for Molecular Informatics
- Department of Chemistry
- University of Cambridge
- Cambridge
- UK
| | - Peter E. Lobie
- Cancer Science Institute of Singapore
- National University of Singapore
- Singapore 117599
| | - Basappa Basappa
- Laboratory of Chemical Biology
- Department of Chemistry
- Bangalore University
- Bangalore 560001
- India
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82
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Smitha G, Sreekumar K. Highly functionalized heterogeneous dendrigraft catalysts with peripheral copper moieties for the facile synthesis of 2-substituted benzimidazoles and 2,2-disubstituted benzimidazoles. RSC Adv 2016. [DOI: 10.1039/c5ra28046j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A highly functionalized heterogeneous copper loaded dendrigraft amidoamine catalyst for the synthesis of 2-substituted and 2,2-disubstituted benzimidazoles is reported.
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Affiliation(s)
- G. Smitha
- Department of Applied Chemistry
- Cochin University of Science and Technoogy
- Kochi-22
- India
| | - K. Sreekumar
- Department of Applied Chemistry
- Cochin University of Science and Technoogy
- Kochi-22
- India
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83
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Khalili D, Banazadeh AR. Graphene Oxide as a Heterogeneous Reagent Promoted Synthesis of 2-Substituted 1,3-Benzazoles in Water. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150232] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Dariush Khalili
- Department of Chemistry, College of Sciences, Shiraz University
| | - Ali Reza Banazadeh
- Department of Chemistry and Petrochemical Engineering, Standard Research Institute (SRI)
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84
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Alapati MLPR, Abburi SR, Mukkamala SB, Krishnaji Rao M. Simple and Efficient One-Pot Synthesis of 2-Substituted Benzimidazoles from θ-Diaminoarene and Aryl Aldehydes. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1083581] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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85
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Mirallai SI, Koutentis PA. The Conversion of 4-Anilinoquinazoline- and 3-Aryl-4-imino-3,4-dihydro-quinazoline-2-carbonitriles into Benzo[4,5]imidazo[1,2-c]quinazoline-6-carbonitriles via Oxidative and Nonoxidative C-N Couplings. J Org Chem 2015; 80:8329-40. [PMID: 26252396 DOI: 10.1021/acs.joc.5b01514] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Benzo[4,5]imidazo[1,2-c]quinazoline-6-carbonitriles are prepared in high yields via three new routes: (1) a Cu(OTf)2 (0-5 mol %) catalyzed hypervalent iodine [PhI(OTf)2] mediated oxidative coupling of 4-anilinoquinazoline-2-carbonitriles in neat trifluoroacetic acid (TFA); (2) a Pd(OAc)2 (10 mol %) or CuI (10 mol %) mediated nonoxidative coupling of 4-(2-bromoanilino)quinazoline-2-carbonitrile; and (3) a nonoxidative Pd(Ar3P)3 [Ar = 3,5-(F3C)2C6H3] [aka Superstable Pd(0) Catalyst] (10 mol %) mediated intramolecular C-N cyclization of 3-(2-bromophenyl)-4-imino-3,4-dihydroquinazoline-2-carbonitriles. All new compounds are fully characterized.
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Affiliation(s)
- Styliana I Mirallai
- Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
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86
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Roy S, Banerjee B, Salam N, Bhaumik A, Islam SM. Mesoporous Titania-Iron(III) Oxide with Nanoscale Porosity and High Catalytic Activity for the Synthesis of β-Amino Alcohols and Benzimidazole Derivatives. ChemCatChem 2015. [DOI: 10.1002/cctc.201500563] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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87
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Shi X, Guo J, Liu J, Ye M, Xu Q. Unexpectedly Simple Synthesis of Benzazoles bytBuONa-Catalyzed Direct Aerobic Oxidative Cyclocondensation ofo-Thio/Hydroxy/Aminoanilines with Alcohols under Air. Chemistry 2015; 21:9988-93. [DOI: 10.1002/chem.201501184] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Indexed: 12/31/2022]
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88
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Ghosh P, Subba R. MgCl2·6H2O catalyzed highly efficient synthesis of 2-substituted-1H-benzimidazoles. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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89
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Zhao G, Chen C, Yue Y, Yu Y, Peng J. Palladium(II)-catalyzed sequential C-H arylation/aerobic oxidative C-H amination: one-pot synthesis of benzimidazole-fused phenanthridines from 2-arylbenzimidazoles and aryl halides. J Org Chem 2015; 80:2827-34. [PMID: 25658883 DOI: 10.1021/jo502632b] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Starting from 2-arylbenzimidazoles and aryl halides, an efficient palladium-based catalytic method for the synthesis of benzimidazole-fused phenanthridines has been developed. This reaction sequence comprises intermolecular C-H arylation and intramolecular aerobic oxidative C-H amination, involving the rupture of two C-H bonds, one C-X bond, and one N-H bond in one pot. The Pd(II)-Pd(IV)-Pd(II) and Pd(II)-Pd(0)-Pd(II) catalytic cycles work together under the reported conditions to generate phenanthridines with diverse substituents.
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Affiliation(s)
- Gongyuan Zhao
- Department of Chemistry and Chemical Engineering, College of Science, Northeast Forestry University , NO. 26 Hexing Road, Harbin 150040, P. R. China
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90
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Song XR, Qiu YF, Song B, Hao XH, Han YP, Gao P, Liu XY, Liang YM. BF3·Et2O-Promoted Cleavage of the Csp–Csp2 Bond of 2-Propynolphenols/Anilines: Route to C2-Alkenylated Benzoxazoles and Benzimidazoles. J Org Chem 2015; 80:2263-71. [DOI: 10.1021/jo502761x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xian-Rong Song
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yi-Feng Qiu
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Bo Song
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xin-Hua Hao
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ya-Ping Han
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Pin Gao
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Yuan Liu
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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91
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Mahesh D, Sadhu P, Punniyamurthy T. Copper(I)-Catalyzed Regioselective Amination of N-Aryl Imines Using TMSN3 and TBHP: A Route to Substituted Benzimidazoles. J Org Chem 2015; 80:1644-50. [DOI: 10.1021/jo502574u] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Devulapally Mahesh
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
| | - Pradeep Sadhu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
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92
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Significant facilitation of metal-free aerobic oxidative cyclization of imines with water in synthesis of benzimidazoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.043] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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93
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Sharma K, Kumar M, Bhalla V. Aggregates of the pentacenequinone derivative as reactors for the preparation of Ag@Cu2O core–shell NPs: an active photocatalyst for Suzuki and Suzuki type coupling reactions. Chem Commun (Camb) 2015; 51:12529-32. [DOI: 10.1039/c5cc03907j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aggregates of the pentacenequinone derivative stabilized Ag@Cu2O core–shell nanoparticles (NPs) enabled efficient visible light harvesting to catalyse the palladium free Suzuki–Miyaura and Suzuki type cross coupling reactions at room temperature.
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Affiliation(s)
- Kamaldeep Sharma
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-1
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Manoj Kumar
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-1
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Vandana Bhalla
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-1
- Guru Nanak Dev University
- Amritsar-143005
- India
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94
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Li Y, Fu Y, Ren C, Tang D, Wu P, Meng X, Chen B. Copper-catalyzed oxidative coupling reaction of α,β-unsaturated aldehydes with amidines: synthesis of 1,2,4-trisubstituted-1H-imidazole-5-carbaldehydes. Org Chem Front 2015. [DOI: 10.1039/c5qo00285k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient synthesis of 1,2,4-trisubstituted-1H-imidazole-5-carbaldehydes was developed, which features high atom economy, cheap catalysts and mild conditions.
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Affiliation(s)
- Yaxuan Li
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
| | - Yajie Fu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
| | - Chaojie Ren
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
| | - Dong Tang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
| | - Ping Wu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
| | - Xu Meng
- State Key Laboratory of Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou
- P. R. China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
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95
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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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96
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Zhang X, Huang R, Marrot J, Coeffard V, Xiong Y. Hypervalent iodine-mediated synthesis of benzoxazoles and benzimidazoles via an oxidative rearrangement. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.066] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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97
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Wang F, You Q, Wu C, Min D, Shi T, Kong Y, Zhang W. Mild Cu(OAc)2·H2O-catalyzed synthesis of multi-substituted 1,2,4-triazoles from amidines with nitriles via a N–N/C–N coupling. RSC Adv 2015. [DOI: 10.1039/c5ra15919a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Multi-substituted 1,2,4-triazoles were obtained via a Cu(OAc)2·H2O-catalyzed aerobic oxidation of amidines with nitriles.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - 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
| | - Chaoting Wu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Dewen Min
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Tianchao Shi
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yuting Kong
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - 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
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98
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Yadav G, Ganguly S. Structure activity relationship (SAR) study of benzimidazole scaffold for different biological activities: A mini-review. Eur J Med Chem 2014; 97:419-43. [PMID: 25479684 DOI: 10.1016/j.ejmech.2014.11.053] [Citation(s) in RCA: 242] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 11/23/2014] [Accepted: 11/25/2014] [Indexed: 11/17/2022]
Abstract
Benzimidazoles are the fused heterocyclic ring systems which form an integral part of vitamin B12 and have been luring many researchers all over the world to assess their potential therapeutic significance. They are known for their crucial role in numerous diseases via various mechanisms. Substitution of benzimidazole nucleus is a crucial step in the drug discovery process. Therefore, it is necessary to gather the latest information along with the earlier information to understand the present status of benzimidazole nucleus in drug discovery. In the present review, benzimidazole derivatives with different pharmacological activities are described on the basis of SAR study using structural substitution pattern around the benzimidazole nucleus and aims to review the reported work related to the chemistry and pharmacological activities of benzimidazole derivatives during recent years. The present manuscript to the best of our knowledge is the first compilation on synthesis and medicinal aspects including structure-activity relationships of benzimidazole reported to date.
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Affiliation(s)
- Geeta Yadav
- Department of Pharmaceutical Science and Technology, Birla Institute of Technology, Mesra, Ranchi 151001, India.
| | - Swastika Ganguly
- Department of Pharmaceutical Science and Technology, Birla Institute of Technology, Mesra, Ranchi 151001, India
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Gladysz JA, Reza Safaei H, Nouri S. An Unexpected Role of Carbon Disulfide: A New and Efficient Method for the Synthesis of 2-Substituted Benzimidazoles. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201400033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Victor NJ, Muraleedharan KM. An Expeditious and Metal-Free Synthetic Route towards Quinolones, Naphthyridones and Benzonaphthyridones. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300891] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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