1
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Liu Y, Wang Z, Lei T, Li Y. Ag(I)‐Promoted Decarboxylative Annulation of Alkynoic Acids towards 2‐Arylimidazo[1,2‐
a
]pyridines. ChemistrySelect 2022. [DOI: 10.1002/slct.202203605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yun Liu
- School of Chemistry and Material Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Ziqing Wang
- School of Chemistry and Material Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Ting Lei
- School of Chemistry and Material Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Yuling Li
- School of Chemistry and Material Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
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2
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Das D, Jena AK, Pal CK, Bourda L, Van Hecke K. CuI Nanoparticles‐Catalyzed Regioselective Synthesis of 3‐Nitro‐2‐arylimidazo[1,2‐a]pyridines using Oxygen as Oxidant. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dibya Das
- Maharaja Sriram Chandra Bhanja Deo University Chemistry Department of ChemistryMaharaja Sriram Chandra Bhanjadeo University(Erstwhile North Orissa University) Sriram Chandra Vihar, Takatpur, Baripada, Od 757003 Baripada INDIA
| | - Ashis Kumar Jena
- North Orissa University Chemistry Sriram Chandra ViharTakatpur 757003 Baripada INDIA
| | - Chandan Kumar Pal
- Maharaja Sriram Chandra Bhanja Deo University Chemistry Department of ChemistryMaharaja Sriram Chandra Bhanjadeo University(Erstwhile North Orissa University) Sriram Chandra Vihar, Takatpur, Baripada, Od 757003 Baripada INDIA
| | - Laurens Bourda
- Ghent University: Universiteit Gent Chemistry 9000 Ghent BELGIUM
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3
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Zhou Z, Luo D, Li G, Yang Z, Cui L, Yang W. Copper-catalyzed three-component reaction to synthesize polysubstituted imidazo[1,2- a]pyridines. RSC Adv 2022; 12:20199-20205. [PMID: 35919587 PMCID: PMC9280286 DOI: 10.1039/d2ra02722d] [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: 04/29/2022] [Accepted: 07/07/2022] [Indexed: 12/02/2022] Open
Abstract
An efficient three-component one-pot and operationally simple cascade of 2-aminopyridines with sulfonyl azides and terminal ynones is reported, providing a variety of polysubstituted imidazo[1,2-a]pyridine derivatives in moderate to excellent yields. In particular, the reaction goes a through CuAAC/ring-cleavage process and forms a highly active intermediate α-acyl-N-sulfonyl ketenimine with base free. Three-component one-pot synthesis of polysubstituted imidazo[1,2-a]pyridine derivatives through a base free CuAAC/ring-cleavage process.![]()
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Affiliation(s)
- Zitong Zhou
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Danyang Luo
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Guanrong Li
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Zhongtao Yang
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Liao Cui
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Weiguang Yang
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong, 524023, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong, 524023, China
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4
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Sree Uppalapati D, Sekhara Reddy Dachuru R, Veni Sunkara S. Metal-Free Regioselective Synthesis of 2-Nitro-3-arylimidazo[1,2-a]pyridines via Oxidative Amination under Air Using Silica Sulfuric Acid as an Effective Heterogeneous Catalyst. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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5
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Rawat R, Verma SM. Advancements in chemical methodologies for the synthesis of 3-aroylimidazo[1,2-a]pyridines: an update of the decade. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1803915] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ravi Rawat
- Division of Pharmaceutical Chemistry, Department of Pharmaceutical Sciences & Technology, Birla Institute of Technology, Ranchi, India
| | - Saurabh M. Verma
- Division of Pharmaceutical Chemistry, Department of Pharmaceutical Sciences & Technology, Birla Institute of Technology, Ranchi, India
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6
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Sun J, Yang X, Liu Y, Wang Y, Pan Y. NIS‐promoted multicomponent reaction of 2‐aminopyridines with aldehydes and nitromethane for the synthesis of 3‐nitroimidazo[1.2‐
a
]pyridines. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3869] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jinwei Sun
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials ScienceNanjing University of Information Science and Technology Nanjing Jiangsu China
| | - Xinrui Yang
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials ScienceNanjing University of Information Science and Technology Nanjing Jiangsu China
| | - Yun Liu
- School of Chemistry and Material ScienceJiangsu Normal University Xuzhou Jiangsu China
| | - Yi Wang
- School of Chemistry and Chemical EngineeringNanjing University Nanjing China
| | - Yi Pan
- School of Chemistry and Chemical EngineeringNanjing University Nanjing China
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7
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Reen GK, Kumar A, Sharma P. Recent advances on the transition-metal-catalyzed synthesis of imidazopyridines: an updated coverage. Beilstein J Org Chem 2019; 15:1612-1704. [PMID: 31435443 PMCID: PMC6664406 DOI: 10.3762/bjoc.15.165] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/28/2019] [Indexed: 12/21/2022] Open
Abstract
A comprehensive account of recent advances in the synthesis of imidazopyridines, assisted through transition-metal-catalyzed multicomponent reactions, C-H activation/functionalization and coupling reactions are highlighted in this review article. The basic illustration of this review comprises of schemes with concise account of explanatory text. The schemes depict the reaction conditions along with a quick look into the mechanism involved to render a deep understanding of the catalytic role. At some instances optimizations of certain features have been illustrated through tables, i.e., selectivity of catalyst, loading of the catalyst and percentage yield with different substrates. Each of the reported examples has been rigorously analyzed for reacting substrates, reaction conditions and transition metals used as the catalyst. This review will be helpful to the chemists in understanding the challenges associated with the reported methods as well as the future possibilities, both in the choice of substrates and catalysts. This review would be quite appealing to a wider range of organic chemists in academia and industrial R&D sectors working in the field of heterocyclic syntheses. In a nutshell, this review will be a guiding torch to envisage: (i) the role of various transition metals in the domain dedicated towards method development and (ii) for the modifications needed thereof in the R&D sector.
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Affiliation(s)
| | - Ashok Kumar
- School of Chemical Sciences, Devi Ahilya University, Indore, (M. P.), India
| | - Pratibha Sharma
- School of Chemical Sciences, Devi Ahilya University, Indore, (M. P.), India
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8
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Cherian RM, Harry NA, Saranya S, Rohit KR, Anilkumar G. Copper-Catalysed Multicomponent Syntheses of Heterocycles. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201800619] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Reeba Mary Cherian
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
| | - Nissy Ann Harry
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
| | - Salim Saranya
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
| | - K. R. Rohit
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
| | - Gopinathan Anilkumar
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
- Advanced Molecular Materials Research Centre (AMMRC); Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
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9
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Tzani M, Kallitsakis MG, Symeonidis TS, Lykakis IN. Alumina-Supported Gold Nanoparticles as a Bifunctional Catalyst for the Synthesis of 2-Amino-3-arylimidazo[1,2- a]pyridines. ACS OMEGA 2018; 3:17947-17956. [PMID: 31458387 PMCID: PMC6643465 DOI: 10.1021/acsomega.8b03047] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/06/2018] [Indexed: 05/31/2023]
Abstract
The bifunctional catalytic efficacy of alumina-supported gold nanoparticles (Au/Al2O3) was investigated for the synthesis of a series of 2-amino-3-aryl-imidazopyridines through the chemoselective reduction of the corresponding 2-nitro-3-aryl-imidazo[1,2-a]pyridines in high isolated yields. This highly efficient protocol was initially applied for the synthesis of 2-nitro-3-aryl imidazo[1,2-a]pyridines via the reaction between 2-aminopyridine and nitroalkenes catalyzed by the present catalytic system Au/Al2O3. Moreover, the heterogeneous surface γ-Al2O3 was also found to catalyze this pathway in a comparable manner. However, only Au/Al2O3 was further proved as the appropriate catalytic system for the selective transfer hydrogenation of the synthesized 2-nitro imidazopyridine derivatives into the corresponding 2-amino-3-aryl imidazo[1,2-a]pyridines using NaBH4 as a hydrogen-donor molecule. In addition, the one-pot two-step reaction between nitroalkenes and aminopyridines in the presence of Au/Al2O3-NaBH4 provided directly the fast and facile synthesis of 2-amino-3-aryl imidazopyridines, highlighting a useful synthetic application of the catalytic protocol.
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10
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Maddi RR, Shirsat PK, Kumar S, Meshram HM. N-Bromosuccinimide Promoted Direct Thiolation of Imidazoheteroaryl C-H bonds with Disulfides. ChemistrySelect 2017. [DOI: 10.1002/slct.201601460] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | | | - Santosh Kumar
- Indian Institute of chemical technology; Tarnaka, Hyderabad India
| | - H. M. Meshram
- Indian Institute of chemical technology; Tarnaka, Hyderabad India
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11
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Mukhopadhyay S, Dighe SU, Kolle S, Shukla PK, Batra S. NaNO2/I2-Mediated Regioselective Synthesis of Nitrosoimidazoheterocycles from Acetophenones by a Domino Process. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600553] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Sushobhan Mukhopadhyay
- Medicinal and Process Chemistry Division; CSIR - Central Drug Research Institute; Sector 10, Jankipuram Extension; Sitapur Road 226031 Lucknow India
| | - Shashikant U. Dighe
- Medicinal and Process Chemistry Division; CSIR - Central Drug Research Institute; Sector 10, Jankipuram Extension; Sitapur Road 226031 Lucknow India
| | - Shivalinga Kolle
- Medicinal and Process Chemistry Division; CSIR - Central Drug Research Institute; Sector 10, Jankipuram Extension; Sitapur Road 226031 Lucknow India
| | - Praveen K. Shukla
- Microbiology Division; CSIR-CDRI; Sector 10, Jankipuram Extension; Sitapur Road 226031 Lucknow India
- Academy of Scientific and Innovative Research; 11025 New Delhi India
| | - Sanjay Batra
- Medicinal and Process Chemistry Division; CSIR - Central Drug Research Institute; Sector 10, Jankipuram Extension; Sitapur Road 226031 Lucknow India
- Academy of Scientific and Innovative Research; 11025 New Delhi India
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12
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Bagdi AK, Hajra A. Design, Synthesis, and Functionalization of Imidazoheterocycles. CHEM REC 2016; 16:1868-85. [DOI: 10.1002/tcr.201600057] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Avik Kumar Bagdi
- Department of Chemistry; Trivenidevi Bhalotia College; Raniganj- 713347 India
| | - Alakananda Hajra
- Department of Chemistry; Visva-Bharati (A Central University); Santiniketan- 731235 India
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13
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Zhang M, Lu J, Zhang JN, Zhang ZH. Magnetic carbon nanotube supported Cu (CoFe2O4/CNT-Cu) catalyst: A sustainable catalyst for the synthesis of 3-nitro-2-arylimidazo[1,2-a]pyridines. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.02.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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14
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Jiao J, Wei L, Ji X, Hu M, Tang R. Direct Introduction of Dithiocarbamates onto Imidazoheterocycles under Mild Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500780] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jing Jiao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
| | - Liang Wei
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Xiao‐Ming Ji
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Mao‐Lin Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Ri‐Yuan Tang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
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15
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Yadav S, Srivastava M, Rai P, Tripathi BP, Mishra A, Singh J, Singh J. Oxidative organophotoredox catalysis: a regioselective synthesis of 2-nitro substituted imidazopyridines and 3-substituted indoles, initiated by visible light. NEW J CHEM 2016. [DOI: 10.1039/c6nj02365g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Intramolecular C–N heterocyclization and C–C bond formation under visible light irradiation at room temperature was accomplished with a metal-free photoredox catalyst.
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Affiliation(s)
- Snehlata Yadav
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Madhulika Srivastava
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Pratibha Rai
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Bhartendu Pati Tripathi
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Anu Mishra
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Jaya Singh
- Department of Chemistry
- LRPG College
- Sahibabad
- India
| | - Jagdamba Singh
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
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16
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Payra S, Saha A, Wu CM, Selvaratnam B, Dramstad T, Mahoney L, Verma SK, Thareja S, Koodali R, Banerjee S. Fe–SBA-15 catalyzed synthesis of 2-alkoxyimidazo[1,2-a]pyridines and screening of their in silico selectivity and binding affinity to biological targets. NEW J CHEM 2016. [DOI: 10.1039/c6nj02134d] [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]
Abstract
Regioselective synthesis of 2-alkoxyimidazopyridines by Fe-SBA-15 and screening of their in silico binding affinity to biological targets.
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Affiliation(s)
- Soumen Payra
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya (A Central University)
- Bilaspur-495009
- India
| | - Arijit Saha
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya (A Central University)
- Bilaspur-495009
- India
| | - Chia-Ming Wu
- Department of Chemistry
- University of South Dakota
- Vermillion
- USA
| | | | - Thorn Dramstad
- Department of Chemistry
- University of South Dakota
- Vermillion
- USA
| | - Luther Mahoney
- Department of Chemistry
- University of South Dakota
- Vermillion
- USA
| | - Sant Kumar Verma
- School of Pharmaceutical Sciences
- Guru Ghasidas Vishwavidyalaya (A Central University)
- Bilaspur-495009
- India
| | - Suresh Thareja
- School of Pharmaceutical Sciences
- Guru Ghasidas Vishwavidyalaya (A Central University)
- Bilaspur-495009
- India
| | - Ranjit Koodali
- Department of Chemistry
- University of South Dakota
- Vermillion
- USA
| | - Subhash Banerjee
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya (A Central University)
- Bilaspur-495009
- India
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17
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Payra S, Saha A, Banerjee S. Nano-NiFe2O4 catalyzed microwave assisted one-pot regioselective synthesis of novel 2-alkoxyimidazo[1,2-a]pyridines under aerobic conditions. RSC Adv 2016. [DOI: 10.1039/c5ra25540f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here, we have demonstrated regioselective synthesis of novel 2-alkoxy-3-arylimidazo[1,2-a]pyridines using nano-NiFe2O4 as reusable catalyst via one-pot sequential aza-Michael addition, Fe-promoted ligand transfer and C–H imination reactions.
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Affiliation(s)
- Soumen Payra
- Department of Chemistry
- Guru GhasidasVishwavidyalaya (A Central University)
- Bilaspur–495009
- India
| | - Arijit Saha
- Department of Chemistry
- Guru GhasidasVishwavidyalaya (A Central University)
- Bilaspur–495009
- India
| | - Subhash Banerjee
- Department of Chemistry
- Guru GhasidasVishwavidyalaya (A Central University)
- Bilaspur–495009
- India
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18
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Zhou X, Yan H, Ma C, He Y, Li Y, Cao J, Yan R, Huang G. Copper-Mediated Aerobic Oxidative Synthesis of 3-Bromo-imidazo[1,2-a]pyridines with Pyridines and Enamides. J Org Chem 2015; 81:25-31. [DOI: 10.1021/acs.joc.5b02384] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xiaoqiang Zhou
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou, 730000, China
| | - Hao Yan
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou, 730000, China
- Shaanxi University of Chinese Medicine, Shiji Ave., Xi’an-Xianyang New Ecomic Zone, Shaanxi Province, Xianyang, 712046, China
| | - Chaowei Ma
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou, 730000, China
| | - Yongqin He
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou, 730000, China
| | - Yamin Li
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou, 730000, China
| | - Jinhui Cao
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou, 730000, China
| | - Rulong Yan
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou, 730000, China
| | - Guosheng Huang
- State
Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, Department
of Chemistry, Lanzhou University, Lanzhou, 730000, China
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19
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Dias Pires MJ, Poeira DL, Marques MMB. Metal-Catalyzed Cross-Coupling Reactions of Aminopyridines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500952] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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20
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Reddy KR, Reddy AS, Shankar R, Kant R, Das P. Copper-Catalyzed Oxidative C−H Amination: Synthesis of Imidazo[1,2-a]-N-Heterocycles from N-Heteroaryl Enaminones. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500052] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- K. Ranjith Reddy
- Academy of Scientific and Innovative Research (AcSIR), New Delhi; Department of Medicinal Chemistry; Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
| | - A. Siva Reddy
- Academy of Scientific and Innovative Research (AcSIR), New Delhi; Department of Medicinal Chemistry; Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
| | - Ravi Shankar
- Academy of Scientific and Innovative Research (AcSIR), New Delhi; Department of Medicinal Chemistry; Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
| | - Rajni Kant
- Post-Graduate Department of Physics & Electronics; University of Jammu; Jammu 180006 India
| | - Parthasarathi Das
- Academy of Scientific and Innovative Research (AcSIR), New Delhi; Department of Medicinal Chemistry; Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
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21
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Tachikawa Y, Nagasawa Y, Furuhashi S, Cui L, Yamaguchi E, Tada N, Miura T, Itoh A. Metal-free synthesis of imidazopyridine from nitroalkene and 2-aminopyridine in the presence of a catalytic amount of iodine and aqueous hydrogen peroxide. RSC Adv 2015. [DOI: 10.1039/c4ra14970j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have developed a metal-free synthetic method for 3-nitroimidazo[1,2-a]pyridines from nitroalkenes and 2-aminopyridines using catalytic amounts of iodine and aqueous hydrogen peroxide as a terminal oxidant.
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Affiliation(s)
| | | | | | - Lei Cui
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | | | | | - Tsuyoshi Miura
- Tokyo University of Pharmacy and Life Sciences
- Hachioji
- Japan
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22
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Xiang L, Zhang F, Chen B, Pang X, Yang X, Huang G, Yan R. An I2-catalyzed oxidative cyclization for the synthesis of indolizines from aromatic/aliphatic olefins and α-picoline derivatives. RSC Adv 2015. [DOI: 10.1039/c5ra01234a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A novel I2-catalyzed intermolecular oxidative tandem cyclization reaction of aromatic/aliphatic olefins and α-picoline derivatives has been achieved for the synthesis of indolizines under metal-free conditions.
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Affiliation(s)
- Likui Xiang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Fuming Zhang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Xiaobo Pang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Xiaodong Yang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
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23
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Kaswan P, Pericherla K, Saini HK, Kumar A. One-pot, three component tandem reaction of 2-aminopyridines, acetophenones and aldehydes: synthesis of 3-aroylimidazo[1,2-a]pyridines. RSC Adv 2015. [DOI: 10.1039/c4ra13056a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile synthesis of 3-aroylimidazo[1,2-a]pyridine derivatives has been achieved via a copper(ii) chloride catalyzed one-pot, three-component tandem reaction of acetophenones, arylaldehydes and 2-aminopyridines.
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Affiliation(s)
- Pinku Kaswan
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani
- India
| | | | - Hitesh Kumar Saini
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani
- India
| | - Anil Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani
- India
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24
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Ji XM, Wei L, Chen F, Tang RY. Direct trifluoromethylation of imidazoheterocycles in a recyclable medium at room temperature. RSC Adv 2015. [DOI: 10.1039/c5ra02888d] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Regioselective C–H trifluoromethylation of imidazoheterocycles with Langlois' reagent in a recyclable mixed medium of 1-butyl-3-methylimidazoliumtetrafluoroborate ([Bmim]BF4) and water at room temperature has been developed.
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Affiliation(s)
- Xiao-Ming Ji
- Department of Applied Chemistry, College of Material and Energy
- South China Agricultural University
- Guangzhou 510642
- China
- College of Chemistry and Materials Engineering
| | - Liang Wei
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Fan Chen
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Ri-Yuan Tang
- Department of Applied Chemistry, College of Material and Energy
- South China Agricultural University
- Guangzhou 510642
- China
- College of Chemistry and Materials Engineering
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25
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Bagdi AK, Santra S, Monir K, Hajra A. Synthesis of imidazo[1,2-a]pyridines: a decade update. Chem Commun (Camb) 2015; 51:1555-75. [DOI: 10.1039/c4cc08495k] [Citation(s) in RCA: 438] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Here we describe the various strategies for the synthesis of imidazo[1,2-a]pyridines.
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Affiliation(s)
- Avik Kumar Bagdi
- Department of Chemistry
- Visva-Bharati (A Central University)
- Santiniketan 731235
- India
| | - Sougata Santra
- Department of Chemistry
- Visva-Bharati (A Central University)
- Santiniketan 731235
- India
| | - Kamarul Monir
- Department of Chemistry
- Visva-Bharati (A Central University)
- Santiniketan 731235
- India
| | - Alakananda Hajra
- Department of Chemistry
- Visva-Bharati (A Central University)
- Santiniketan 731235
- India
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26
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Yan R, Li X, Yang X, Kang X, Xiang L, Huang G. A novel one-pot method for the synthesis of substituted furopyridines: iodine-mediated oxidation of enaminones by tandem metal-free cyclization. Chem Commun (Camb) 2015; 51:2573-6. [DOI: 10.1039/c4cc08834d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel iodine-mediated oxidative tandem cyclization reaction of simple enaminones has been developed for the synthesis of substituted furopyridines through C–C/C–N/C–O bond formation in a one-pot procedure.
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Affiliation(s)
- Rulong Yan
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Xiaoni Li
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Xiaodong Yang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Xing Kang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Likui Xiang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
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27
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Zhai LH, Guo LH, Sun BW. Copper-catalyzed intramolecular dehydrogenative cyclization: direct access to sensitive formyl-substituted imidazo[1,2-a]pyridines. RSC Adv 2015. [DOI: 10.1039/c5ra19085a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
A direct method for the synthesis of formyl-substituted imidazo[1,2-a]pyridines was achieved easily from cyclization of aminopyridines and cinnamaldehydes via copper catalysis.
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Affiliation(s)
- Li-Hai Zhai
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
- China
- Lunan Pharmaceutical Co. Ltd
| | | | - Bai-Wang Sun
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
- China
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28
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Xiang L, Yang Y, Zhou X, Liu X, Li X, Kang X, Yan R, Huang G. I2-Mediated Oxidative Cyclization for Synthesis of Substituted Indolizines. J Org Chem 2014; 79:10641-7. [DOI: 10.1021/jo5019574] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Likui Xiang
- State Key Laboratory of Applied
Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and
Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yang Yang
- State Key Laboratory of Applied
Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and
Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiaoqiang Zhou
- State Key Laboratory of Applied
Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and
Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xingxing Liu
- State Key Laboratory of Applied
Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and
Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiaoni Li
- State Key Laboratory of Applied
Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and
Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xing Kang
- State Key Laboratory of Applied
Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and
Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Rulong Yan
- State Key Laboratory of Applied
Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and
Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Guosheng Huang
- State Key Laboratory of Applied
Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and
Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
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29
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Santra S, Mitra S, Bagdi AK, Majee A, Hajra A. Iron(III)-catalyzed three-component domino strategy for the synthesis of imidazo[1,2-a]pyridines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.094] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Monir K, Bagdi AK, Ghosh M, Hajra A. Unprecedented Catalytic Activity of Fe(NO3)3·9H2O: Regioselective Synthesis of 2-Nitroimidazopyridines via Oxidative Amination. Org Lett 2014; 16:4630-3. [DOI: 10.1021/ol502218u] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Kamarul Monir
- Department
of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Avik Kumar Bagdi
- Department
of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Monoranjan Ghosh
- Department
of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Alakananda Hajra
- Department
of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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31
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Ravi C, Chandra Mohan D, Adimurthy S. N-Chlorosuccinimide-Promoted Regioselective Sulfenylation of Imidazoheterocycles at Room Temperature. Org Lett 2014; 16:2978-81. [DOI: 10.1021/ol501117z] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chitrakar Ravi
- Academy of Scientific & Innovative Research, Scale up & Process Engineering Unit, CSIR−Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, Gujarat, India
| | - Darapaneni Chandra Mohan
- Academy of Scientific & Innovative Research, Scale up & Process Engineering Unit, CSIR−Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, Gujarat, India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research, Scale up & Process Engineering Unit, CSIR−Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, Gujarat, India
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32
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Puthiaraj P, Ramu A, Pitchumani K. Copper-Based Metal-Organic Frameworks as Reusable Heterogeneous Catalysts for the One-Pot Syntheses of Imidazo[1,2-a]pyridines. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402019] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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33
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Yan H, Ma Y, Sun Y, Ma C, Wang Y, Ren X, Huang G. Catalyst-free synthesis of alkyl 4-oxo-4H-pyrido[1,2-a]pyrimidine-2-carboxylate derivatives on water. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.02.084] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Mohan DC, Rao SN, Ravi C, Adimurthy S. Copper(I) Iodide Catalyzed Aerobic Oxidative CN and CS bond formations through CH Activation: Synthesis of Functionalized Imidazo[1,2-a]pyridines. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402004] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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35
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Yan H, Wang Y, Pan C, Zhang H, Yang S, Ren X, Li J, Huang G. Iron(III)-Catalyzed Denitration Reaction: One-Pot Three-Component Synthesis of Imidazo[1,2-a]pyridine Derivatives. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301658] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Xie MS, Chu ZL, Niu HY, Qu GR, Guo HM. A Copper-Catalyzed Domino Route toward Purine-Fused Tricyclic Derivatives. J Org Chem 2014; 79:1093-9. [DOI: 10.1021/jo4025489] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ming-Sheng Xie
- 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, P. R. China
| | - Zhi-Liang Chu
- 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, P. R. China
| | - Hong-Ying Niu
- School
of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, Henan 453003, P. R. China
| | - Gui-Rong Qu
- 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, P. R. China
| | - Hai-Ming 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, P. R. China
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37
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Chandra Mohan D, Reddy Donthiri R, Nageswara Rao S, Adimurthy S. Copper(I) Iodide-Catalysed Aerobic Oxidative Synthesis of Imidazo[1,2-a]pyridines from 2-Aminopyridines and Methyl Ketones. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300456] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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