51
|
Mani GS, Shaik SP, Tangella Y, Bale S, Godugu C, Kamal A. A facile I2-catalyzed synthesis of imidazo[1,2-a]pyridines via sp3 C–H functionalization of azaarenes and evaluation of anticancer activity. Org Biomol Chem 2017; 15:6780-6791. [DOI: 10.1039/c7ob01384a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A three component synthetic protocol has been developed for the synthesis of medicinally important imidazo[1,2-a]pyridines via the iodine-catalyzed oxidative amination of benzylic C–H bonds of azaarenes. The synthesized compounds were evaluated for their anti-cancer activity.
Collapse
Affiliation(s)
- Geeta Sai Mani
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
- Medicinal Chemistry & Pharmacology
| | - Siddiq Pasha Shaik
- Medicinal Chemistry & Pharmacology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Yellaiah Tangella
- Medicinal Chemistry & Pharmacology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Swarna Bale
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
| | - Chandraiah Godugu
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
| | - Ahmed Kamal
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad-500 037
- India
- Medicinal Chemistry & Pharmacology
| |
Collapse
|
52
|
Liu QX, He BY, Qian PC, Shao LX. N-Heterocyclic carbene–palladium(ii)–1-methylimidazole complex catalyzed direct C–H bond arylation of imidazo[1,2-a]pyridines with aryl chlorides. Org Biomol Chem 2017; 15:1151-1154. [DOI: 10.1039/c6ob02704k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
NHC–Pd(ii) complex catalyzed C–H bond arylation of imidazo[1,2-a]pyridines with aryl chlorides was reported.
Collapse
Affiliation(s)
- Qing-Xian Liu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Chashan University Town
- Wenzhou
- People's Republic of China
| | - Bang-Yue He
- College of Chemistry and Materials Engineering
- Wenzhou University
- Chashan University Town
- Wenzhou
- People's Republic of China
| | - Peng-Cheng Qian
- College of Chemistry and Materials Engineering
- Wenzhou University
- Chashan University Town
- Wenzhou
- People's Republic of China
| | - Li-Xiong Shao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Chashan University Town
- Wenzhou
- People's Republic of China
| |
Collapse
|
53
|
Banerji B, Chatterjee S, Chandrasekhar K, Bera S, Majumder L, Prodhan C, Chaudhuri K. Expedient synthesis of a phenanthro-imidazo-pyridine fused heteropolynuclear framework via CDC coupling: a new class of luminophores. Org Biomol Chem 2017; 15:4130-4134. [DOI: 10.1039/c7ob00564d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein report the design and synthesis of a group of fused phenanthro-imidazo[1,2-a]pyridine derivatives as a new class of luminescent materials through a Pd(ii) catalyzed intramolecular CDC coupling.
Collapse
Affiliation(s)
- Biswadip Banerji
- Organic & Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR-IICB)
- Kolkata
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Satadru Chatterjee
- Organic & Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR-IICB)
- Kolkata
- India
| | - K. Chandrasekhar
- Organic & Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR-IICB)
- Kolkata
- India
| | - Suvankar Bera
- Organic & Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR-IICB)
- Kolkata
- India
| | - Leena Majumder
- Organic & Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR-IICB)
- Kolkata
- India
| | - Chandraday Prodhan
- Molecular Genetics
- Indian Institute of Chemical Biology (CSIR-IICB)
- Kolkata
- India
| | - Keya Chaudhuri
- Molecular Genetics
- Indian Institute of Chemical Biology (CSIR-IICB)
- Kolkata
- India
| |
Collapse
|
54
|
Shakoor SMA, Kumari S, Khullar S, Mandal SK, Kumar A, Sakhuja R. Ruthenium(II)-Catalyzed Regioselective Ortho Amidation of Imidazo Heterocycles with Isocyanates. J Org Chem 2016; 81:12340-12349. [DOI: 10.1021/acs.joc.6b02282] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- S. M. Abdul Shakoor
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India
| | - Santosh Kumari
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India
| | - Sadhika Khullar
- Department
of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, S.A.S. Nagar, Manuali P.O., Punjab 140306, India
| | - Sanjay K. Mandal
- Department
of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, S.A.S. Nagar, Manuali P.O., Punjab 140306, India
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India
| | - Rajeev Sakhuja
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India
| |
Collapse
|
55
|
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
|
56
|
Yang B, Tao C, Shao T, Gong J, Che C. One-pot synthesis of tetracyclic fused imidazo[1,2-a]pyridines via a three-component reaction. Beilstein J Org Chem 2016; 12:1487-92. [PMID: 27559401 PMCID: PMC4979633 DOI: 10.3762/bjoc.12.145] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 06/29/2016] [Indexed: 12/25/2022] Open
Abstract
A novel three-component reaction has been developed to assemble biologically and pharmaceutically important tetracyclic fused imidazo[1,2-a]pyridines in a one-pot fashion utilizing readily available 2-aminopyridines, isatins and isocyanides. The three-component coupling proceeds through the Groebke–Blackburn–Bienaymé reaction followed by a retro-aza-ene reaction and subsequent nucleophilic reaction of the in-situ generated imidazo[1,2-a]pyridines bearing an isocyanate functional group.
Collapse
Affiliation(s)
- Bo Yang
- Laboratory of Chemical Genomics, Engineering Laboratory for Chiral Drug Synthesis, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Chuanye Tao
- Laboratory of Chemical Genomics, Engineering Laboratory for Chiral Drug Synthesis, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Taofeng Shao
- Laboratory of Chemical Genomics, Engineering Laboratory for Chiral Drug Synthesis, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Jianxian Gong
- Laboratory of Chemical Genomics, Engineering Laboratory for Chiral Drug Synthesis, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Chao Che
- Laboratory of Chemical Genomics, Engineering Laboratory for Chiral Drug Synthesis, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| |
Collapse
|
57
|
Reddy KR, Gupta AP, Das P. Metal-Free Aminooxygenation of Alkynes: Efficient Synthesis of 3-Aroylimidazo[1,2-a]-N-Heterocycles. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600120] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- K. Ranjith Reddy
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020
| | - Ajai Prakash Gupta
- Quality Control and Quality Assurance (QC & QA); Indian Institute of Integrative Medicine (IIIM); Jammu 180001 India
| | - Parthasarathi Das
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020
- Indian Institute of Integrative medicine; Jammu 180001 India
| |
Collapse
|
58
|
Ansari AJ, Sharma S, Pathare RS, Gopal K, Sawant DM, Pardasani RT. Solvent-free Multicomponent Synthesis of Biologically-active Fused-imidazo Heterocycles Catalyzed by Reusable Yb(OTf)3Under Microwave Irradiation. ChemistrySelect 2016. [DOI: 10.1002/slct.201600241] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Arshad J. Ansari
- Department of Pharmacy; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Shivani Sharma
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Ramdas S. Pathare
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Kandasamy Gopal
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Devesh M. Sawant
- Department of Pharmacy; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - R. T. Pardasani
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| |
Collapse
|
59
|
Cioc RC, Preschel HD, van der Heijden G, Ruijter E, Orru RVA. Trityl Isocyanide as a Mechanistic Probe in Multicomponent Chemistry: Walking the Line between Ugi- and Strecker-type Reactions. Chemistry 2016; 22:7837-42. [DOI: 10.1002/chem.201600285] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Răzvan C. Cioc
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Hans D. Preschel
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Gydo van der Heijden
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| | - Romano V. A. Orru
- Department of Chemistry & Pharmaceutical Sciences and; Amsterdam Institute for Molecules Medicines and Systems (AIMMS); Vrije Universiteit Amsterdam; De Boelelaan 1108 1081 HZ Amsterdam The Netherlands
| |
Collapse
|
60
|
Manvar P, Shaikh F, Kakadiya R, Mehariya K, Khunt R, Pandey B, Shah A. Synthesis of novel imidazo[1,2-a]pyridine-4-hydroxy-2H-coumarins by Groebke–Blackburn–Bienaymé multicomponent reaction as potential NS5B inhibitors. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.01.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
61
|
Swami S, Devi N, Agarwala A, Singh V, Shrivastava R. ZnO nanoparticles as reusable heterogeneous catalyst for efficient one pot three component synthesis of imidazo-fused polyheterocycles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
62
|
Copper-catalyzed synthesis of benzo[b]thiophene-fused imidazopyridines via the cleavage of C–H bond and C–X bond. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.091] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
63
|
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]
|
64
|
Tazeem T, Han X, Zhou Q, Wei J, Tien P, Yang G, Wu S, Dong C. A facile one-pot multi-component synthesis of novel adamantine substituted imidazo[1,2-a]pyridine derivatives: identification and structure–activity relationship study of their anti-HIV-1 activity. RSC Adv 2016. [DOI: 10.1039/c6ra17656a] [Citation(s) in RCA: 7] [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 series of adamantine substituted imidazo[1,2-a]pyridine derivatives were developed through a one-pot multi-component Groebke–Blackburn–Bienaymé reaction, among them several compounds were identified to be the potent inhibitors against HIV-1 cells.
Collapse
Affiliation(s)
- Tazeem Tazeem
- State Key Laboratory of Virology
- College of Life Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Xin Han
- State Key Laboratory of Virology
- College of Life Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Qingjun Zhou
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- Hubei University
- Wuhan 430062
- China
| | - Jingchen Wei
- Department of Pharmacology
- Guilin Medical University
- Guilin
- China
| | - Po Tien
- State Key Laboratory of Virology
- College of Life Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Guichun Yang
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- Hubei University
- Wuhan 430062
- China
| | - Shuwen Wu
- State Key Laboratory of Virology
- College of Life Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Chune Dong
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals
- Wuhan University School of Pharmaceutical Sciences
- Wuhan 430071
- China
| |
Collapse
|
65
|
Váradi A, Palmer TC, Notis Dardashti R, Majumdar S. Isocyanide-Based Multicomponent Reactions for the Synthesis of Heterocycles. Molecules 2015; 21:E19. [PMID: 26703561 PMCID: PMC4782750 DOI: 10.3390/molecules21010019] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 12/02/2015] [Accepted: 12/17/2015] [Indexed: 11/16/2022] Open
Abstract
Multicomponent reactions (MCRs) are extremely popular owing to their facile execution, high atom-efficiency and the high diversity of products. MCRs can be used to access various heterocycles and highly functionalized scaffolds, and thus have been invaluable tools in total synthesis, drug discovery and bioconjugation. Traditional isocyanide-based MCRs utilize an external nucleophile attacking the reactive nitrilium ion, the key intermediate formed in the reaction of the imine and the isocyanide. However, when reactants with multiple nucleophilic groups (bisfunctional reactants) are used in the MCR, the nitrilium intermediate can be trapped by an intramolecular nucleophilic attack to form various heterocycles. The implications of nitrilium trapping along with widely applied conventional isocyanide-based MCRs in drug design are discussed in this review.
Collapse
Affiliation(s)
- András Váradi
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
| | - Travis C Palmer
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
| | | | - Susruta Majumdar
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
| |
Collapse
|
66
|
Koudad M, Elaatiaoui A, Benchat N, Saadi M, El Ammari L. Crystal structure of 2-(4-meth-oxy-phen-yl)-6-nitro-imidazo[1,2-a]pyridine-3-carbaldehyde. Acta Crystallogr E Crystallogr Commun 2015; 71:o979-80. [PMID: 26870561 PMCID: PMC4719933 DOI: 10.1107/s2056989015021957] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 11/17/2015] [Indexed: 11/21/2022]
Abstract
In the title compound, C15H11N3O4, the imidazo[1,2-a] pyridine ring system is almost planar [r.m.s. deviation = 0.028 (2) Å]. Its mean plane makes dihedral angles of 33.92 (7) and 34.56 (6)° with the meth-oxy-phenyl ring and the nitro group, respectively. The cohesion of the crystal structure is ensured by C-H⋯N and C-H⋯O hydrogen bonds, forming layers almost parallel to the ac plane.
Collapse
Affiliation(s)
- Mohamed Koudad
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohammed Premier, BP 524, 60000-Oujda, Morocco
- Observatoire de la Lagune Marchica de Nador et Région Limitrophe, Université Mohammed Premier, Faculté Pluridisciplinaire de Nador, BP 300, Selouane 62702 Nador, Morocco
| | - Abdelmalik Elaatiaoui
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohammed Premier, BP 524, 60000-Oujda, Morocco
- Observatoire de la Lagune Marchica de Nador et Région Limitrophe, Université Mohammed Premier, Faculté Pluridisciplinaire de Nador, BP 300, Selouane 62702 Nador, Morocco
| | - Noureddine Benchat
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohammed Premier, BP 524, 60000-Oujda, Morocco
| | - Mohamed Saadi
- Laboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V, Avenue Ibn Battouta, BP 1014, Rabat, Morocco
| | - Lahcen El Ammari
- Laboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V, Avenue Ibn Battouta, BP 1014, Rabat, Morocco
| |
Collapse
|
67
|
Adiyala PR, Mani GS, Nanubolu JB, Shekar KC, Maurya RA. Access to Imidazo[1,2-a]pyridines via Annulation of α-Keto Vinyl Azides and 2-Aminopyridines. Org Lett 2015; 17:4308-11. [PMID: 26308984 DOI: 10.1021/acs.orglett.5b02124] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel strategy for the synthesis of imidazo[1,2-a]pyridines via efficient catalyst/metal-free annulations of α-keto vinyl azides and 2-aminopyridines is described. Several imidazo[1,2-a]pyridines were synthesized from readily available vinyl azides and 2-aminopyridines and obtained in highly pure form by simply evaporating the reaction solvent. This remarkably high yielding and atom economical protocol allows the formation of three new C-N bonds through cascade reactions and rearrangements.
Collapse
Affiliation(s)
- Praveen Reddy Adiyala
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT) , Hyderabad-500007, India
| | - Geeta Sai Mani
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT) , Hyderabad-500007, India
| | | | - Kunta Chandra Shekar
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT) , Hyderabad-500007, India
| | - Ram Awatar Maurya
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT) , Hyderabad-500007, India
| |
Collapse
|
68
|
Recent synthetic scenario on imidazo[1,2-a]pyridines chemical intermediate. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2216-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
69
|
Shaaban S, Abdel-Wahab BF. Groebke–Blackburn–Bienaymé multicomponent reaction: emerging chemistry for drug discovery. Mol Divers 2015; 20:233-54. [DOI: 10.1007/s11030-015-9602-6] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 05/12/2015] [Indexed: 01/31/2023]
|
70
|
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]
|
71
|
Synthesis, antimicrobial and antioxidant activities of imidazotriazoles and new multicomponent reaction toward 5-amino-1-phenyl[1,2,4]triazole derivatives. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1322-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
72
|
Martinez-Ariza G, Nunez-Rios J, Lee YS, Hulme C. Acetyl cyanide as a cyanide source in a tandem catalyst-free modified Groebke–Blackburn–Bienaymé [4+1]-cycloaddition-Strecker cascade. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.127] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
73
|
Jose G, Suresha Kumara T, Nagendrappa G, Sowmya H, Sriram D, Yogeeswari P, Sridevi JP, Guru Row TN, Hosamani AA, Sujan Ganapathy P, Chandrika N, Narendra L. Synthesis, molecular docking and anti-mycobacterial evaluation of new imidazo[1,2-a]pyridine-2-carboxamide derivatives. Eur J Med Chem 2015; 89:616-27. [DOI: 10.1016/j.ejmech.2014.10.079] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 10/08/2014] [Accepted: 10/29/2014] [Indexed: 11/25/2022]
|
74
|
Devi N, Rawal RK, Singh V. Diversity-oriented synthesis of fused-imidazole derivatives via Groebke–Blackburn–Bienayme reaction: a review. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.10.032] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
75
|
Maleki A, Javanshir S, Naimabadi M. Facile synthesis of imidazo[1,2-a]pyridines via a one-pot three-component reaction under solvent-free mechanochemical ball-milling conditions. RSC Adv 2014. [DOI: 10.1039/c3ra43221a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
76
|
Gao Q, Chen Y, Liu Y, Li C, Gao D, Wu B, Li H, Li Y, Liu W, Li W. A series of ZnII and CoII complexes based on 2-(imidazo[1,5-a]pyridin-3-yl)phenol: syntheses, structures, and luminescent and magnetic properties. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.927061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Qian Gao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Yanmei Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
- Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, China
| | - Yonglu Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Cong Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Dandan Gao
- Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, China
| | - Bing Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Haiyan Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Yahong Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China
| | - Wei Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Wu Li
- Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, China
| |
Collapse
|
77
|
Koubachi J, El Kazzouli S, Bousmina M, Guillaumet G. Functionalization of Imidazo[1,2-a]pyridines by Means of Metal-Catalyzed Cross-Coupling Reactions. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400065] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
78
|
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]
|
79
|
Ghorbani-Vaghei R, Amiri M. N,N,N′,N′-Tetrabromobenzene-1,3-disulfonamide and Poly(N-bromo-N-ethylbenzene-1,3-disulfonamide) as Mild and Efficient Catalysts for Solvent-free Synthesis ofN-Cyclohexyl-2-aryl(alkyl)-imidazo[1,2-a]pyridin-3-amine Derivatives. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1875] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ramin Ghorbani-Vaghei
- Department of Organic Chemistry, Faculty of Chemistry; Bu-Ali-Sina University; 65174 Hamedan Iran
| | - Mostafa Amiri
- Department of Organic Chemistry, Faculty of Chemistry; Bu-Ali-Sina University; 65174 Hamedan Iran
| |
Collapse
|
80
|
Wang S, Liu W, Cen J, Liao J, Huang J, Zhan H. Pd-catalyzed oxidative cross-coupling of imidazo[1,2-a]pyridine with arenes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.069] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
81
|
One-Pot Synthesis ofN-(Imidazo[1,2-a]pyridin-3-yl)-Substituted Sulfonamides Using Catalytic Zinc Chloride. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301612] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
82
|
Shahrisa A, Safa KD, Esmati S. Synthesis, spectroscopic and DFT studies of novel fluorescent dyes: 3-aminoimidazo[1,2-a]pyridines possessing 4-pyrone moieties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 117:614-621. [PMID: 24113013 DOI: 10.1016/j.saa.2013.09.056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 08/04/2013] [Accepted: 09/07/2013] [Indexed: 06/02/2023]
Abstract
A series of novel imidazo[1,2-a]pyridines possessing 4-pyrone ring were synthesized by three-component condensation of 4-pyrone carbaldehydes, 2-aminopyridines and isocyanides. Bismuth (III) chloride was used as a catalyst in these reactions and desired products were synthesized in good yields at a very short period of time under solvent free conditions. UV-Vis absorption and fluorescence emission spectra of these compounds were investigated. It shown that two of these compounds (10f and 10g) exhibit intense fluorescence in dichloromethane. Optimized ground-state molecular geometries and orbital distributions of these two fluorescent dyes were obtained using density functional theory (DFT). Thermogravimetric analysis and electrochemical properties of these compounds were also studied.
Collapse
Affiliation(s)
- Aziz Shahrisa
- Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166614766, Iran.
| | | | | |
Collapse
|
83
|
Yu J, Jin Y, Zhang H, Yang X, Fu H. Copper‐Catalyzed Aerobic Oxidative CH Functionalization of Substituted Pyridines: Synthesis of Imidazopyridine Derivatives. Chemistry 2013; 19:16804-8. [DOI: 10.1002/chem.201302737] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Revised: 08/28/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Jipan Yu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (+86) 10‐62781695
| | - Yunhe Jin
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (+86) 10‐62781695
| | - Hao Zhang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (+86) 10‐62781695
| | - Xiaobo Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (+86) 10‐62781695
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084 (P.R. China), Fax: (+86) 10‐62781695
- Key Laboratory of Chemical Biology (Guangdong Province), Graduate School of Shenzhen, Tsinghua University, Shenzhen 518057 (P.R. China)
| |
Collapse
|
84
|
Bazin MA, Marhadour S, Tonnerre A, Marchand P. Exploration of versatile reactions on 2-chloro-3-nitroimidazo[1,2-a]pyridine: expanding structural diversity of C2- and C3-functionalized imidazo[1,2-a]pyridines. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.113] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
85
|
Venkatraj M, Ariën KK, Heeres J, Joossens J, Messagie J, Michiels J, Van der Veken P, Vanham G, Lewi PJ, Augustyns K. Synthesis, evaluation and structure–activity relationships of triazine dimers as novel antiviral agents. Bioorg Med Chem Lett 2012; 22:7174-8. [DOI: 10.1016/j.bmcl.2012.09.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 09/17/2012] [Accepted: 09/18/2012] [Indexed: 02/07/2023]
|
86
|
Sun H, Zhou H, Khorev O, Jiang R, Yu T, Wang X, Du Y, Ma Y, Meng T, Shen J. Three-Component, One-Pot Sequential Synthesis of Functionalized Cyclazines: 3H-1,2a1,3-Triazaacenaphthylenes. J Org Chem 2012; 77:10745-51. [DOI: 10.1021/jo3021105] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hongpeng Sun
- School of Chemistry and Pharmaceutical Engineering, Shandong Polytechnic University, Jinan 250353, P.R. China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
87
|
Marie E, Bouclé S, Enguehard-Gueiffier C, Gueiffier A. Regiocontrolled microwave assisted bifunctionalization of 7,8-dihalogenated imidazo[1,2-a]pyridines: a one pot double-coupling approach. Molecules 2012; 17:10683-707. [PMID: 22955457 PMCID: PMC6268566 DOI: 10.3390/molecules170910683] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 08/31/2012] [Accepted: 09/03/2012] [Indexed: 12/03/2022] Open
Abstract
The reactivity of the 7-chloro-8-iodo- and 8-chloro-7-iodoimidazo[1,2-a]pyridines 1a–e diversely substituted on the 2 position, towards Suzuki-Miyaura, Sonogashira, and Buchwald-Hartwig cross-coupling reactions as well as cyanation was evaluated. Various methodologies are proposed to introduce aryl, heteroaryl, alkyne, amine or cyano groups in the two positions depending on the nature of the substituent present in position 2. In both series, the substitution of the iodine atom was totally regioselective and the difficulty was to substitute the chlorine atom in a second step. Until now, only hetero(aryl) groups could be introduced though Suzuki-Miyaura cross-coupling. We overcame this problem evaluating both regioisomers in parallel. The double coupling approach was also studied allowing the one pot Suzuki/Suzuki, cyanation/Sonogashira and cyanation/Buchwald reactions leading to polyfunctionnalized imidazo[1,2-a]pyridines.
Collapse
|
88
|
Nair DK, Mobin SM, Namboothiri INN. Synthesis of imidazopyridines from the Morita-Baylis-Hillman acetates of nitroalkenes and convenient access to Alpidem and Zolpidem. Org Lett 2012; 14:4580-3. [PMID: 22920993 DOI: 10.1021/ol3020418] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A variety of functionalized imidazo[1,2-a]pyridines have been synthesized through a one-pot, room temperature, and reagent-free reaction between MBH acetates of nitroalkenes and 2-aminopyridines. The reaction involves a cascade inter-intramolecular double aza-Michael addition of 2-aminopyridines to MBH acetates. Our methodology is marked by excellent yield, regioselectivity and, above all, adaptability to synthesize imidazopyridine-based drug molecules such as Alpidem and Zolpidem.
Collapse
Affiliation(s)
- Divya K Nair
- Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai 400 076, India
| | | | | |
Collapse
|
89
|
Su M, Buchwald SL. A Bulky Biaryl Phosphine Ligand Allows for Palladium-Catalyzed Amidation of Five-Membered Heterocycles as Electrophiles. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201244] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
90
|
Su M, Buchwald SL. A bulky biaryl phosphine ligand allows for palladium-catalyzed amidation of five-membered heterocycles as electrophiles. Angew Chem Int Ed Engl 2012; 51:4710-3. [PMID: 22473747 DOI: 10.1002/anie.201201244] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Mingjuan Su
- Department of Chemistry, Room 18-490, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | |
Collapse
|
91
|
|
92
|
Venkatraj M, Ariën KK, Heeres J, Dirié B, Joossens J, Van Goethem S, Van der Veken P, Michiels J, Vande Velde CM, Vanham G, Lewi PJ, Augustyns K. Novel diarylpyridinones, diarylpyridazinones and diarylphthalazinones as potential HIV-1 nonnucleoside reverse transcriptase inhibitors (NNRTIs). Bioorg Med Chem 2011; 19:5924-34. [DOI: 10.1016/j.bmc.2011.08.060] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 08/19/2011] [Accepted: 08/28/2011] [Indexed: 11/25/2022]
|