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Jo J, Kim S, Park S, Kim S, Lee S, Choi JH, Chung WJ. Study on Pyridine-Boryl Radical-Promoted, Ketyl Radical-Mediated Carbon-Carbon Bond-Forming Reactions. J Org Chem 2024. [PMID: 38861548 DOI: 10.1021/acs.joc.4c00946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Ketyl radicals are synthetically versatile reactive species, but their applications have been hampered by harsh generation conditions employing highly reducing metals. Recently, the pyridine-boryl radical received wide attention as a promising organic reductant because of its mildness as well as convenience in handling. While probing the utility of the pyridine-boryl radical, our group observed facile pinacol coupling reactivity that had not been known at that time. This serendipitous finding was successfully rendered into a practical synthesis of tetraaryl-1,2-diols in up to 99% yield within 1 h. Subsequently, upon examinations of various reaction manifolds, a diastereoselective ketyl-olefin cyclization was accomplished to produce cycloalkanols such as trans-2-alkyl-1-indanols. Compared to the previous methods, the stereocontrolling ability was considerably enhanced by taking advantage of the structurally modifiable boryl group that would be present near the bond-forming site. In this full account, our synthetic efforts with the O-boryl ketyl radicals are disclosed in detail, covering the discovery, optimization, scope expansion, and mechanistic analysis, including density functional theory (DFT) calculations.
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Affiliation(s)
- Junhyuk Jo
- Department of Chemistry, GIST, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Somi Kim
- Department of Chemistry, GIST, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Seonyoung Park
- Department of Chemistry, GIST, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Seonyul Kim
- Department of Chemistry, GIST, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Sunggi Lee
- Department of Physics and Chemistry, DGIST, 333 Techno jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu 42988, Republic of Korea
| | - Jun-Ho Choi
- Department of Chemistry, GIST, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Won-Jin Chung
- Department of Chemistry, GIST, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
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2
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Chung NT, Dung VC, Duc DX. Recent achievements in the synthesis of benzimidazole derivatives. RSC Adv 2023; 13:32734-32771. [PMID: 37942457 PMCID: PMC10628531 DOI: 10.1039/d3ra05960j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/21/2023] [Indexed: 11/10/2023] Open
Abstract
Benzimidazoles are a class of heterocyclic compounds in which a benzene ring is fused to the 4 and 5 positions of an imidazole ring. Benzimidazole refers to the parent compound, while benzimidazoles are a class of heterocyclic compounds having similar ring structures, but different substituents. Benzimidazole derivatives possess a wide range of bioactivities including antimicrobial, anthelmintic, antiviral, anticancer, and antihypertensive activities. Many compounds possessing a benzimidazole skeleton have been employed as drugs in the market. The application of benzimidazoles in other fields has also been documented. The synthesis of benzimidazole derivatives has attracted much attention from chemists and numerous articles on the synthesis of this class of heterocyclic compound have been reported over the years. The condensation between 1,2-benzenediamine and aldehydes has received intensive interest, while many novel methods have been developed. In this article, we will give a comprehensive review of studies on the synthesis of benzimidazole, which date back to 2013. We have also tried to describe reaction mechanisms as much as we can. The work might be useful for chemists who work in the synthesis of heterocycles or drug chemistry.
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Affiliation(s)
- Nguyen Thi Chung
- Department of Chemistry, Institute of Education, Vinh University 182 Le Duan Street Nghe An 430000 Vietnam
| | - Vo Cong Dung
- Centre for Education Accreditation, Vinh University 182 Le Duan Street Nghe An 430000 Vietnam
| | - Dau Xuan Duc
- Department of Chemistry, Institute of Education, Vinh University 182 Le Duan Street Nghe An 430000 Vietnam
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3
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Sarkar P, Hazra Chowdhury A, Riyajuddin S, Ghosh S, Islam SM. Constructing a metal-free 2D covalent organic framework for visible-light-driven photocatalytic reduction of CO 2: a sustainable strategy for atmospheric CO 2 utilization. REACT CHEM ENG 2023. [DOI: 10.1039/d2re00241h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
A 2D polyimide-linked covalent organic framework (COF) with band gap energy of 2.2 eV is developed as a stable and efficient porous photocatalyst which shows CO2 reduction to formic acid, formaldehyde and methanol.
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Affiliation(s)
- Priyanka Sarkar
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, 741235, W.B., India
| | - Arpita Hazra Chowdhury
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016 Kanpur, Uttar Pradesh, India
| | - Sk. Riyajuddin
- Institute of Nano Science and Technology, Mohali, 160062, India
| | - Swarbhanu Ghosh
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, 741235, W.B., India
| | - Sk. Manirul Islam
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, 741235, W.B., India
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4
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Garnes–Portolés F, López–Cruz C, Sánchez–Quesada J, Espinós–Ferri E, Leyva–Pérez A. Solid-catalyzed synthesis of isomers–free terpinen–4–ol. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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5
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Pandey M, Jadav D, Manhas A, Kediya S, Tsunoji N, Kumar R, Das S, Bandyopadhyay M. Synthesis and characterization of mononuclear Zn complex, immobilized on ordered mesoporous silica and their tunable catalytic properties. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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6
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Rezanejade Bardajee G, Hekmat S, Ghaedi A, Goudarzi F. A heterogeneous mesoporous catalyst based on anchored copper: Schiff base complex into SBA-15 for the synthesis of benzimidazoles from orthoesters. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2037001] [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)
| | - Shohreh Hekmat
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - Aseyeh Ghaedi
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - Farideh Goudarzi
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
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7
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Highly Efficient and Ambient-Temperature Synthesis of Benzimidazoles via Co(III)/Co(II)-Mediated Redox Catalysis. Catalysts 2022. [DOI: 10.3390/catal12010059] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
An efficient method for ambient-temperature synthesis of a variety of 2-substituted and 1,2-disubstituted benzimidazoles from aldehyde and phenylenediamine substrates has been developed by utilizing Co(III)/Co(II)-mediated redox catalysis. The combination of only 1 mol% of Co(acac)2 and stoichiometric amount of hydrogen peroxide provides a fast, green, and mild access to a diversity of benzimidazoles under solvent-free conditions.
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9
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Chakrabortty P, Ghosh S, Das A, Khan A, Islam SM. Visible-light-driven sustainable conversion of carbon dioxide to methanol using a metal-free covalent organic framework as a recyclable photocatalyst. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00088a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A 2D covalent organic framework (COF) was synthesized by copolymerization between 4,4′-biphenyldicarbaldehyde and 1,3,5-tris-(4-aminophenyl) triazine (TAPT). This COF exhibited excellent photocatalytic performance for the CO2 reduction to methanol.
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Affiliation(s)
- Pekham Chakrabortty
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - Swarbhanu Ghosh
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - Anjan Das
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - Aslam Khan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Sk. Manirul Islam
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
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10
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Zhu X, He J, Yang Y, Zhou S, Wei Y, Wang S. Synthesis of rare-earth metal complexes with a morpholine-functionalized β-diketiminato ligand and their catalytic activities towards C–O and C–N bond formation. Dalton Trans 2022; 51:13227-13235. [DOI: 10.1039/d2dt02053j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unusual tridentate β-diketiminato rare-earth metal chlorides LRECl(µ-Cl)2Li(THF)2 (RE = Y (1a), Yb (1b), Lu (1c); L = MeC(NDipp)CHC(Me)N(CH2)2NC4H8O; Dipp = 2,6-iPr2C6H3) and the corresponding dialkyl complexes LRE(CH2SiMe3)2 (RE = Y...
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11
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Yamini, Sharma S, Das P. Rhodium catalyzed 2‐alkyl‐benzimidazoles synthesis from benzene‐1,2‐diamines and tertiary alkylamines as alkylating agents. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yamini
- Chemical Technology Division CSIR‐Institute of Himalayan Bioresource Technology (IHBT) Palampur Himachal Pradesh 176061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
| | - Saurabh Sharma
- Chemical Technology Division CSIR‐Institute of Himalayan Bioresource Technology (IHBT) Palampur Himachal Pradesh 176061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
| | - Pralay Das
- Chemical Technology Division CSIR‐Institute of Himalayan Bioresource Technology (IHBT) Palampur Himachal Pradesh 176061 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
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12
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Aromatic amine mediated ring opening of epoxides: A reaction catalyzed by biogenic iron oxide nanoparticles. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Jadav D, Shukla P, Bandyopadhyay R, Kubota Y, Das S, Bandyopadhyay M. Tetranuclear Zn complex covalently immobilized on sulfopropylsilylated mesoporous silica: An efficient catalyst for ring opening reaction of epoxide with amine. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Li D, Wang J, Yu S, Ye S, Zou W, Zhang H, Chen J. Highly regioselective ring-opening of epoxides with amines: a metal- and solvent-free protocol for the synthesis of β-amino alcohols. Chem Commun (Camb) 2020; 56:2256-2259. [PMID: 31984384 DOI: 10.1039/c9cc09048g] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We herein report a metal- and solvent-free acetic acid-mediated ring-opening reaction of epoxides with amines. This process provides β-amino alcohols in high yields with excellent regioselectivity. Importantly, this epoxide ring-opening protocol can be used for the introduction of amines in natural products during late-stage transformations.
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Affiliation(s)
- Dong Li
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University Kunming, 650091, P. R. China.
| | - Jing Wang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University Kunming, 650091, P. R. China.
| | - Shibo Yu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University Kunming, 650091, P. R. China.
| | - Silei Ye
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University Kunming, 650091, P. R. China.
| | - Wenjie Zou
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University Kunming, 650091, P. R. China.
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University Kunming, 650091, P. R. China.
| | - Jingbo Chen
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University Kunming, 650091, P. R. China.
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15
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Du J, Zhou S, Zhang X, Zhang L, Cui P, Huang Z, Wei Y, Zhu X, Wang S. Syntheses, structures and catalytic activities of low‐coordinated rare‐earth metal complexes containing 2,2′‐pyridylpyrrolides. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jun Du
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
| | - Shuangliu Zhou
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
| | - Xiuli Zhang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
| | - Lijun Zhang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
| | - Peng Cui
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
| | - Zeming Huang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
| | - Yun Wei
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
| | - Xiancui Zhu
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
| | - Shaowu Wang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry Shanghai China
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16
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Habibzadeh S, Firouzzadeh Pasha G, Tajbakhsh M, Amiri Andi N, Alaee E. A novel ternary GO@SiO
2
‐HPW nanocomposite as an efficient heterogeneous catalyst for the synthesis of benzazoles in aqueous media. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Setareh Habibzadeh
- Department of ChemistryBabol Noshirvani University of Technology Babol Iran
| | | | | | - Nasim Amiri Andi
- Department of ChemistryBabol Noshirvani University of Technology Babol Iran
| | - Ehsan Alaee
- Neonatal and Children's Health Research CenterGolestan University of Medical Sciences Gorgan Iran
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17
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Kalhor M, Rezaee‐Baroonaghi F, Dadras A, Zarnegar Z. Synthesis of new TCH/Ni‐based nanocomposite supported on SBA‐15 and its catalytic application for preparation of benzimidazole and perimidine derivatives. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4784] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Mehdi Kalhor
- Department of Organic ChemistryPayame Noor University Tehran 19395‐4697 Iran
| | | | - Akbar Dadras
- Department of Organic ChemistryPayame Noor University Tehran 19395‐4697 Iran
| | - Zohre Zarnegar
- Department of Organic ChemistryPayame Noor University Tehran 19395‐4697 Iran
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18
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Dey TK, Ghosh K, Basu P, Islam SM. Study of catalytic activity of a polymer‐supported Ce catalyst for the synthesis of biofuels and β‐amino alcohol derivatives under ambient condition. J Appl Polym Sci 2019. [DOI: 10.1002/app.47650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tusar Kanto Dey
- Department of ChemistryUniversity of Kalyani, Kalyani Nadia 741235 West Bengal India
| | - Kajari Ghosh
- Department of ChemistryThe University of Burdwan Burdwan West Bengal India
| | - Priyanka Basu
- Department of ChemistryUniversity of Kalyani, Kalyani Nadia 741235 West Bengal India
| | - Sk. Manirul Islam
- Department of ChemistryUniversity of Kalyani, Kalyani Nadia 741235 West Bengal India
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19
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Garazhian Z, Rezaeifard A, Jafarpour M. A nanoscopic icosahedral {Mo72Fe30} cluster catalyzes the aerobic synthesis of benzimidazoles. RSC Adv 2019; 9:34854-34861. [PMID: 35530665 PMCID: PMC9074170 DOI: 10.1039/c9ra06581d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 10/19/2019] [Indexed: 01/20/2023] Open
Abstract
In this study, the catalytic efficiency of amorphous {Mo72Fe30} nanocapsules as a safe Keplerate polyoxometalate in organic synthesis was exploited. The easy-made solid catalyst exhibited high efficiency using a very low dosage (0.02–0.05 mol%) in the catalyzed condensation of various aromatic 1,2-diamines and aldehydes for the aerobic synthesis of benzimidazoles with very small E-factor values (0.11–0.33). The superior catalytic activity of amorphous nanoclusters compared to that of its crystalline counterpart was demonstrated. The high activity and recyclability of heterogeneous catalysts in a green reaction media under oxygen atmosphere, make this environmentally benign organic process appropriate for our applied goals. Catalytic activity of amorphous {Mo72Fe30} nanoclusters as a safe Keplerate polyoxometalate in aerobic synthesis of benzimidazoles was described.![]()
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Affiliation(s)
- Zohreh Garazhian
- Catalysis Research Laboratory
- Department of Chemistry
- Faculty of Science
- University of Birjand
- Birjand
| | - Abdolreza Rezaeifard
- Catalysis Research Laboratory
- Department of Chemistry
- Faculty of Science
- University of Birjand
- Birjand
| | - Maasoumeh Jafarpour
- Catalysis Research Laboratory
- Department of Chemistry
- Faculty of Science
- University of Birjand
- Birjand
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20
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Bahrami K, Bakhtiarian M. Mesoporous Titania-Alumina Mixed Oxide: A Heterogeneous Nanocatalyst for the Synthesis of 2-Substituted Benzimidazoles, Benzothiazoles and Benzoxazoles. ChemistrySelect 2018. [DOI: 10.1002/slct.201801782] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kiumars Bahrami
- Department of Organic Chemistry, Faculty of Chemistry; Razi University; Kermanshah 67149-67346 Iran
- Nanoscience and Nanotechnology Research Center (NNRC); Razi University; Kermanshah 67149-67346 Iran
| | - Mohsen Bakhtiarian
- Department of Organic Chemistry, Faculty of Chemistry; Razi University; Kermanshah 67149-67346 Iran
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21
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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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22
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Karimi M, Hajiashrafi T, Heydari A, Azhdari Tehrani A. Terbium-organic framework as heterogeneous Lewis acid catalyst for β-aminoalcohol synthesis: Efficient, reusable and green catalytic method. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3866] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Meghdad Karimi
- Chemistry Department; Tarbiat Modares University; PO Box 14155-4838 Tehran Iran
| | - Taraneh Hajiashrafi
- Department of Chemistry, Faculty of Physics and Chemistry; Alzahra University; PO Box 1993891176 Tehran Iran
| | - Akbar Heydari
- Chemistry Department; Tarbiat Modares University; PO Box 14155-4838 Tehran Iran
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23
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Roy S, Bhanja P, Safikul Islam S, Bhaumik A, Manirul Islam S. A new chiral Fe(iii)–salen grafted mesoporous catalyst for enantioselective asymmetric ring opening of racemic epoxides at room temperature under solvent-free conditions. Chem Commun (Camb) 2016; 52:1871-4. [DOI: 10.1039/c5cc08675b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A new heterogeneous chiral Fe(iii)–salen grafted mesoporous catalyst has been synthesized for the enantioselective (ee > 99%) ARO reaction of racemic epoxides with aromatic amine under solvent-free conditions.
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Affiliation(s)
- Susmita Roy
- Department of Chemistry
- University of Kalyani
- Kalyani
- India
| | - Piyali Bhanja
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Jadavpur 700 032
- India
| | | | - Asim Bhaumik
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Jadavpur 700 032
- India
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24
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Reddy PL, Arundhathi R, Tripathi M, Rawat DS. CuI nanoparticles mediated expeditious synthesis of 2-substituted benzimidazoles using molecular oxygen as the oxidant. RSC Adv 2016. [DOI: 10.1039/c6ra11678g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
2-Substituted benzimidazoles from o-diaminobenzenes and aldehydes using CuI nanoparticles as a heterogeneous nano-catalyst and O2 as an oxidant were synthesised in excellent yields.
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Affiliation(s)
- P. Linga Reddy
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - R. Arundhathi
- Corporate Research & Development Centre
- Bharat Petroleum Corporation Limited
- Greater Noida
- India
| | - Mohit Tripathi
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Diwan S. Rawat
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| |
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