1
|
Sun S, Ye H, Liu H, Li J, Bi X. Iron-Catalyzed Sulfonylmethylation of Imidazo[1,2-α]pyridines with N, N-Dimethylacetamide and Sodium Sulfinates. Molecules 2024; 29:3196. [PMID: 38999150 PMCID: PMC11243443 DOI: 10.3390/molecules29133196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 07/14/2024] Open
Abstract
Functionalized imidazo[1,2-α]pyridines are important scaffolds in pharmaceuticals. Herein, we present an efficient 3-sulfonylmethylation protocol for imidazo[1,2-α]pyridines by sodium sulfinates in DMA and H2O (2:1) via an FeCl3-catalyzed three-component coupling reaction. Various sulfonylmethyl imidazo[1,2-α]pyridines were thus afforded in high yields with excellent functional group tolerance. A plausible oxidation-addition mechanism was proposed.
Collapse
Affiliation(s)
- Shengnan Sun
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Hexia Ye
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Haibo Liu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Junchen Li
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Xiaojing Bi
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| |
Collapse
|
2
|
Tali JA, Kumar G, Sharma BK, Rasool Y, Sharma Y, Shankar R. Synthesis and site selective C-H functionalization of imidazo-[1,2- a]pyridines. Org Biomol Chem 2023; 21:7267-7289. [PMID: 37655687 DOI: 10.1039/d3ob00849e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Imidazo[1,2-a]pyridine has attracted much interest in drug development because of its potent medicinal properties, therefore the discovery of novel methods for its synthesis and functionalization continues to be an exciting area of research. Although transition metal catalysis has fuelled the most significant developments, extremely beneficial metal-free approaches have also been identified. Even though pertinent reviews focused on imidazo[1,2-a]pyridine synthesis, properties (physicochemical and medicinal), and functionalization at the C3 position have been published, none of these reviews has focused on the outcomes obtained in the field of global ring functionalization. We wish here to describe a brief synthesis and an overview of all the functionalization reactions at each carbon atom, viz, C2, C3, C5, C6, C7 and C8 of this scaffold, divided into sections based on site-selectivity and the type of functionalization methods used.
Collapse
Affiliation(s)
- Javeed Ahmad Tali
- Natural Product and Medicinal Chemistry Division (NPMC), CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Gulshan Kumar
- Natural Product and Medicinal Chemistry Division (NPMC), CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Bhupesh Kumar Sharma
- Natural Product and Medicinal Chemistry Division (NPMC), CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Younis Rasool
- Natural Product and Medicinal Chemistry Division (NPMC), CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Yashika Sharma
- Natural Product and Medicinal Chemistry Division (NPMC), CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India.
| | - Ravi Shankar
- Natural Product and Medicinal Chemistry Division (NPMC), CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| |
Collapse
|
3
|
Wang Y, Zhang Z, Deng L, Lao T, Su Z, Yu Y, Cao H. Mechanochemical Synthesis of 1,2-Diketoindolizine Derivatives from Indolizines and Epoxides Using Piezoelectric Materials. Org Lett 2021; 23:7171-7176. [PMID: 34459619 DOI: 10.1021/acs.orglett.1c02575] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A simple and efficient mechanochemical-induced approach for the synthesis of 1,2-diketoindolizine derivatives has been developed. BaTiO3 was used as the piezoelectric material in this transformation. This method features no usage of solvent, simple experimental operation, scalable potential, and high conversion efficiency, which make it attractive and practical.
Collapse
Affiliation(s)
- Yumei Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Ziwu Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Lichan Deng
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Tianfeng Lao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yue Yu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China.,Guangdong Pharmaceutical University-University of Hong Kong Joint Biomedical Innovation Platform, Zhongshan 528437, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| |
Collapse
|
4
|
Konwar D, Bora U. Recent Developments in Transition‐Metal‐Catalyzed Regioselective Functionalization of Imidazo[1, 2‐
a
]pyridine. ChemistrySelect 2021. [DOI: 10.1002/slct.202100144] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Dipika Konwar
- Department of Chemical Sciences Tezpur University, Napaam, Tezpur PIN 784028 Assam India
| | - Utpal Bora
- Department of Chemical Sciences Tezpur University, Napaam, Tezpur PIN 784028 Assam India
| |
Collapse
|
5
|
Roslan II, Ng K, Alhooshani KR, Jaenicke S, Chuah G. In/Cu Catalyzed Multiple C−N/C−C Bond Formation via Multiple Bond Cleavage in a Three Component Synthesis of Arylimidazopyridine Carboxylates. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Irwan Iskandar Roslan
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Kian‐Hong Ng
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Khalid R. Alhooshani
- Chemistry Department King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Stephan Jaenicke
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Gaik‐Khuan Chuah
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| |
Collapse
|
6
|
Said MS, Mishra A, Pandole S, Nayak RA, Kumar P, Gajbhiye JM. Regioselective One‐Pot Synthesis of 3‐Fluoro‐Imidazo[1,2‐a]pyridines from Styrene. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900521] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Madhukar S. Said
- Division of Organic ChemistryCSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Ankita Mishra
- Division of Organic ChemistryCSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Satish Pandole
- Division of Organic ChemistryCSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune- 411008 India
| | - Rashmi A. Nayak
- Division of Organic ChemistryCSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Pradeep Kumar
- Division of Organic ChemistryCSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Jayant M. Gajbhiye
- Division of Organic ChemistryCSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| |
Collapse
|
7
|
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.
Collapse
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
| |
Collapse
|
8
|
Koubachi J, El Brahmi N, Guillaumet G, El Kazzouli S. Oxidative Alkenylation of Fused Bicyclic Heterocycles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900199] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jamal Koubachi
- Faculté Polydisciplinaire de Taroudant; Laboratoire de Chimie Appliquée et Environnement (LACAPE); Université Ibn Zohr d′Agadir; B.P 271 83000 Taroudant Morocco
| | - Nabil El Brahmi
- Euromed Research Center; Euromed Faculty of Engineering; Euromed University of Fes; Route de Meknes 30000 Fès Morocco
| | - Gérald Guillaumet
- Institut de Chimie Organique et Analytique (ICOA); Université d'Orléans, UMR CNRS 7311; BP 6759 45067 Orléans Cedex 2 France
| | - Saïd El Kazzouli
- Euromed Research Center; Euromed Faculty of Engineering; Euromed University of Fes; Route de Meknes 30000 Fès Morocco
| |
Collapse
|
9
|
Yu Y, Su Z, Cao H. Strategies for Synthesis of Imidazo[1,2-a
]pyridine Derivatives: Carbene Transformations or C−H Functionalizations. CHEM REC 2018; 19:2105-2118. [DOI: 10.1002/tcr.201800168] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/22/2018] [Indexed: 01/21/2023]
Affiliation(s)
- Yue Yu
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; Zhongshan 528458 P.R. of China
| | - Zhengquan Su
- School of Public Health; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering; Guangdong Pharmaceutical University; Zhongshan 528458 P.R. of China
| |
Collapse
|
10
|
Zhang M, Hu L, Lang Y, Cao Y, Huang G. Mechanism and Origins of Regio- and Enantioselectivities of Iridium-Catalyzed Hydroarylation of Alkenyl Ethers. J Org Chem 2018; 83:2937-2947. [DOI: 10.1021/acs.joc.8b00377] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mei Zhang
- Department
of Chemistry, School of Science and Tianjin Key Laboratory of Molecular
Optoelectronic Sciences, Tianjin University, Tianjin 300072, P. R. China
| | - Lingfei Hu
- Department
of Chemistry, School of Science and Tianjin Key Laboratory of Molecular
Optoelectronic Sciences, Tianjin University, Tianjin 300072, P. R. China
| | - Yanmin Lang
- Department
of Chemistry, School of Science and Tianjin Key Laboratory of Molecular
Optoelectronic Sciences, Tianjin University, Tianjin 300072, P. R. China
| | - Yang Cao
- Institute of New Energy, Shenzhen, Guangdong 518031, P.R. China
| | - Genping Huang
- Department
of Chemistry, School of Science and Tianjin Key Laboratory of Molecular
Optoelectronic Sciences, Tianjin University, Tianjin 300072, P. R. China
- National
Demonstration Center for Experimental Chemistry and Chemical Engineering
Education, National Virtual Simulation Experimental Teaching Center
for Chemistry and Chemical Engineering Education, Tianjin University, Tianjin 300072, P. R. China
| |
Collapse
|
11
|
Cao G, Chen Z, Song J, Xu J, Miao M, Ren H. Oxidant-Mediated Nitrogenation and Recyclization of Imidazo[1,2-a
]pyridines with Sodium Azide: Synthesis of 4H
-Pyrido[1,2-a
][1,3,5]triazin-4-ones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701480] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Gangjian Cao
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Zhengkai Chen
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Jinyu Song
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Jianfeng Xu
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Maozhong Miao
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Hongjun Ren
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| |
Collapse
|
12
|
Yin G, Zhu M, Fu W. Visible-light-induced photocatalytic difluoroacetylation of imidazopyridines via direct and regioselective C H functionalization. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
13
|
Kalbandhe AH, Kavale AC, Karade NN. Ring-Opening Reaction of Imidazo[1,2-a]pyridines Using (Diacetoxyiodo)benzene and NaN3: The Synthesis of α-Iminonitriles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601480] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Amit H. Kalbandhe
- Department of Chemistry; Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur; 440033 Nagpur India
| | - Ashish C. Kavale
- Department of Chemistry; Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur; 440033 Nagpur India
| | - Nandkishor N. Karade
- Department of Chemistry; Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur; 440033 Nagpur India
| |
Collapse
|
14
|
Ru-catalyzed ortho-oxidative alkenylation of 2-arylbenzo[d]thiazoles in aqueous solution of anionic surfactant sodium dodecylbenzenesulfonate (SDBS). Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
15
|
Chang Q, Wu Z, Yu L, Liu P, Sun P. Visible-light-mediated C3-azolylation of imidazo[1,2-a]pyridines with 2-bromoazoles. Org Biomol Chem 2017; 15:5318-5324. [DOI: 10.1039/c7ob00883j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
3-Heterocycle-substituted imidazo[1,2-a]pyridines were produced by a visible-light-mediated coupling reaction of imidazo[1,2-a]pyridines with 2-bromoazoles.
Collapse
Affiliation(s)
- Qing Chang
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| | - Zhongjie Wu
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| | - Lu Yu
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| | - Ping Liu
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| | - Peipei Sun
- College of Chemistry and Materials Science
- Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing Normal University
- Nanjing 210023
| |
Collapse
|
16
|
Copper-catalyzed tandem cyclization of 2-(2-iodophenyl)imidazo[1,2-a]pyridine derivatives with selenium: Synthesis of benzo[b]selenophene-fused imidazo[1,2-a]pyridines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.095] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
17
|
Lu S, Zhu X, Li K, Guo YJ, Wang MD, Zhao XM, Hao XQ, Song MP. Reactivity of p-Toluenesulfonylmethyl Isocyanide: Iron-Involved C–H Tosylmethylation of Imidazopyridines in Nontoxic Media. J Org Chem 2016; 81:8370-7. [DOI: 10.1021/acs.joc.6b01552] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shuai Lu
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Ke Li
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Yu-Jing Guo
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Meng-Dan Wang
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xue-Mei Zhao
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry and
Molecular Engineering, Henan Key Laboratory of Chemical Biology and
Organic Chemisry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| |
Collapse
|
18
|
Gao Y, Lu W, Liu P, Sun P. Iron-Catalyzed Regioselective Alkoxycarbonylation of Imidazoheterocycles with Carbazates. J Org Chem 2016; 81:2482-7. [DOI: 10.1021/acs.joc.6b00046] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yongyuan Gao
- College of Chemistry and
Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle
Processes and Pollution Control, Jiangsu Collaborative Innovation
Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Weiye Lu
- College of Chemistry and
Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle
Processes and Pollution Control, Jiangsu Collaborative Innovation
Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Ping Liu
- College of Chemistry and
Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle
Processes and Pollution Control, Jiangsu Collaborative Innovation
Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- College of Chemistry and
Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle
Processes and Pollution Control, Jiangsu Collaborative Innovation
Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| |
Collapse
|
19
|
Shakoor SMA, Agarwal DS, Kumar A, Sakhuja R. Copper catalyzed direct aerobic double-oxidative cross-dehydrogenative coupling of imidazoheterocycles with aryl acetaldehydes: an articulate approach for dicarbonylation at C-3 position. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
20
|
Huang G, Liu P. Mechanism and Origins of Ligand-Controlled Linear Versus Branched Selectivity of Iridium-Catalyzed Hydroarylation of Alkenes. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02201] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Genping Huang
- Department
of Chemistry, School of Science, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Peng Liu
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| |
Collapse
|
21
|
Wang S, Huang X, Ge Z, Wang X, Li R. Metal-free C-3 alkylation of imidazopyridines with xanthates and convenient access to alpidem and zolpidem. RSC Adv 2016. [DOI: 10.1039/c6ra09046j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A metal-free process for the C-3 alkylation of imidazopyridines have been developed. Various alkylation products including alkyl ester-, cyano-, ketone- and amide-substituted imidazopyridines were prepared in good yields.
Collapse
Affiliation(s)
- Shucheng Wang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Xuhu Huang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Zemei Ge
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Xin Wang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Runtao Li
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| |
Collapse
|
22
|
Lei S, Chen G, Mai Y, Chen L, Cai H, Tan J, Cao H. Regioselective Copper-Catalyzed Oxidative Cross-Coupling of Imidazo[1,2-a]pyridines with Methyl Ketones: An Efficient Route for Synthesis of 1,2-Diketones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500803] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
23
|
Wang C, Lei S, Cao H, Qiu S, Liu J, Deng H, Yan C. Regioselective Copper-Catalyzed Dicarbonylation of Imidazo[1,2-a]pyridines with N,N-Disubstituted Acetamide or Acetone: An Approach to 1,2-Diketones Using Molecular Oxygen. J Org Chem 2015; 80:12725-32. [DOI: 10.1021/acs.joc.5b02417] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Changcheng Wang
- College
of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Sai Lei
- College
of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Hua Cao
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Shuxian Qiu
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Jingyun Liu
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Hao Deng
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Caijuan Yan
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| |
Collapse
|
24
|
Liu P, Gao Y, Gu W, Shen Z, Sun P. Regioselective Fluorination of Imidazo[1,2-a]pyridines with Selectfluor in Aqueous Condition. J Org Chem 2015; 80:11559-65. [DOI: 10.1021/acs.joc.5b01961] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ping Liu
- College
of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory
of Materials Cycling and Pollution Control, Nanjing Normal University, Nanjing 210023, China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing 210023, China
| | - Yongyuan Gao
- College
of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory
of Materials Cycling and Pollution Control, Nanjing Normal University, Nanjing 210023, China
| | - Weijin Gu
- College
of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory
of Materials Cycling and Pollution Control, Nanjing Normal University, Nanjing 210023, China
| | - Ziyan Shen
- College
of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory
of Materials Cycling and Pollution Control, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- College
of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory
of Materials Cycling and Pollution Control, Nanjing Normal University, Nanjing 210023, China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing 210023, China
| |
Collapse
|
25
|
Lei S, Cao H, Chen L, Liu J, Cai H, Tan J. Regioselective Oxidative Homocoupling Reaction: An Efficient Copper-Catalyzed Synthesis of Biimidazo[1,2-a]pyridines. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500391] [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]
|
26
|
Yadav M, Dara S, Saikam V, Kumar M, Aithagani SK, Paul S, Vishwakarma RA, Singh PP. Regioselective Oxidative C-H Phosphonation of Imidazo[1,2-a]pyridines and Related Heteroarenes Mediated by Manganese(III) Acetate. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500984] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
27
|
Microwave-assisted solvent-free synthesis of imidazo[1,2-a]pyridines via a three-component reaction. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
28
|
Wang Y, Frett B, McConnell N, Li HY. Metal-free, efficient hydrazination of imidazo[1,2-a]pyridine with diethyl azodicarboxylate in neutral media. Org Biomol Chem 2015; 13:2958-64. [PMID: 25611884 PMCID: PMC4675458 DOI: 10.1039/c4ob02284j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The first example of metal-free regioselective hydrazination of imidazo[1,2-a]pyridine with diethyl azodicarboxylate is accomplished. This procedure is chemically appealing due to the high degree of functional group tolerance and efficiency in expanding the molecular diversity.
Collapse
Affiliation(s)
- Yuanxiang Wang
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, Arizona 85721, USA.
| | | | | | | |
Collapse
|
29
|
Liu W, Wang S, Jiang Y, He P, Zhang Q, Cao H. Copper-Catalyzed Regioselective C5 Sulfenylation of Imidazo[2,1-b]thiazoles with Thiols. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201402289] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
30
|
Wang KM, Ma YL, Lin XR, Yan SJ, Lin J. Regioselective synthesis of pyrrolo[1,2-a]imidazoles and imidazo[1,2-a]-pyridines. RSC Adv 2015. [DOI: 10.1039/c5ra04244e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A concise synthesis of pyrrolo[1,2-a]imidazoles and imidazo[1,2-a]-pyridines by regioselective aza-ene additions and regioselective cyclic–condensation reactions of HKAs with ethyl 3-benzoylacrylate derivatives under catalyst-free conditions.
Collapse
Affiliation(s)
- Kai-Min Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- Advanced Analysis and Measurement Center
- School of Chemical Science and Technology
- Yunnan University
| | - Yu-Lu Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- Advanced Analysis and Measurement Center
- School of Chemical Science and Technology
- Yunnan University
| | - Xin-Rong Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- Advanced Analysis and Measurement Center
- School of Chemical Science and Technology
- Yunnan University
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- Advanced Analysis and Measurement Center
- School of Chemical Science and Technology
- Yunnan University
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- Advanced Analysis and Measurement Center
- School of Chemical Science and Technology
- Yunnan University
| |
Collapse
|
31
|
Lv J, Liang Y, He P, Cai Z, Liu J, Huang F. Palladium-catalyzed direct alkenylation of 2-methyl-4H-pyrido[1,2-a]pyrimidin-4-ones using oxygen as the oxidant. RSC Adv 2015. [DOI: 10.1039/c5ra02932e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A direct C-3 alkenylation of 2-methyl-4H-pyrido[1,2-a]pyrimidin-4-ones through palladium-catalyzed C–H activation using oxygen as the terminal oxidant has been developed.
Collapse
Affiliation(s)
- Junliang Lv
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Ying Liang
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Peiling He
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Zhihao Cai
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Jianwen Liu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Fengxi Huang
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| |
Collapse
|
32
|
Cao H, Lei S, Li N, Chen L, Liu J, Cai H, Qiu S, Tan J. Cu-Catalyzed selective C3-formylation of imidazo[1,2-a]pyridine C–H bonds with DMSO using molecular oxygen. Chem Commun (Camb) 2015; 51:1823-5. [DOI: 10.1039/c4cc09134e] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Using the widely available DMSO as the formylation reagent under oxidative conditions, an efficient Cu-catalyzed C3-formylation reaction of imidazo [1,2-a]pyridine C–H bonds to directly generate structurally sophisticated 3-formyl imidazo[1,2-a]pyridine derivatives has been developed.
Collapse
Affiliation(s)
- Hua Cao
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P.R. China
| | - Sai Lei
- College of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. China
| | - Naiying Li
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P.R. China
| | - Longbin Chen
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P.R. China
| | - Jingyun Liu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P.R. China
| | - Huiyin Cai
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P.R. China
| | - Shuxian Qiu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P.R. China
| | - Jingwen Tan
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan 528458
- P.R. China
| |
Collapse
|
33
|
Cao H, Chen L, Liu J, Cai H, Deng H, Chen G, Yan C, Chen Y. Regioselective copper-catalyzed thiolation of imidazo[1,2-a]pyridines: an efficient C–H functionalization strategy for C–S bond formation. RSC Adv 2015. [DOI: 10.1039/c5ra01342a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Regioselective copper-catalyzed thiolation of imidazo[1,2-a]pyridines.
Collapse
Affiliation(s)
- Hua Cao
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P. R. China
| | - Longbin Chen
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P. R. China
| | - Jingyun Liu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P. R. China
| | - Huiyin Cai
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P. R. China
| | - Hao Deng
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P. R. China
| | - Guijun Chen
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P. R. China
| | - Caijuan Yan
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P. R. China
| | - Ya Chen
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P. R. China
| |
Collapse
|
34
|
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.
Collapse
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
| |
Collapse
|
35
|
Liu S, Xi H, Zhang J, Wu X, Gao Q, Wu A. Organopromoted direct synthesis of 6-iodo-3-methylthioimidazo[1,2-a]pyridines via convergent integration of three self-sorting domino sequences. Org Biomol Chem 2015. [DOI: 10.1039/c5ob01313e] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An NH2CN-promoted convergent integration of three self-sorting domino sequences is described for the construction of 6-iodo-3-methylthioimidazo[1,2-a]pyridines from aryl methyl ketones and 2-aminopyridines.
Collapse
Affiliation(s)
- Shan Liu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Hailing Xi
- State Key Laboratory of NBC Protection for Civilian
- Beijing 102205
- China
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| |
Collapse
|
36
|
|