1
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Li J, Jia X, Qiu J, Wang M, Chen J, Jing M, Xu Y, Zheng X, Dai H. Brønsted Acid-Catalyzed Synthesis of 1,2,5-Trisubstituted Imidazoles via a Multicomponent Reaction of Vinyl Azides with Aromatic Aldehydes and Aromatic Amines. J Org Chem 2022; 87:13945-13954. [PMID: 36223536 DOI: 10.1021/acs.joc.2c01624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A facile and efficient approach to the synthesis of 1,2,5-trisubstituted imidazoles is developed via a multicomponent reaction under metal-free catalysis. Under Brønsted acid catalysis, the desired products can be obtained from readily available vinyl azides, aromatic aldehydes, and aromatic amines without generating any toxic waste. The convenient operations and high functional group compatibility indicate that this approach offers an attractive alternative method for the synthesis of imidazole derivatives.
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Affiliation(s)
- Jiuling Li
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
| | - Xinyu Jia
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
| | - Ju Qiu
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
| | - Min Wang
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
| | - Juan Chen
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
| | - Minghui Jing
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
| | - Yifu Xu
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
| | - Xinhua Zheng
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
| | - Hongmei Dai
- Henan Engineering Research Center of Funiu Mountain's Medical Resources Utilization and Molecular Medicine, School of Medical Sciences, Pingdingshan University, Pingdingshan 467000, People's Republic of China
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2
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Maurya RA, Borkotoky L. Recent Advances on α‐Azidoketones and Esters in the Synthesis of N‐Heterocycles. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ram Awatar Maurya
- CSIR - North East Institute of Science and Technology Chemical Sciences Jorhat 785006 Jorhat INDIA
| | - Lodsna Borkotoky
- North East Institute of Science and Technology CSIR Chemical Sciences and Technology Division INDIA
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3
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Al‐Rifai NM, Mubarak MS. α‐Substituted Chalcones: A Key Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202103325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nafisah M. Al‐Rifai
- Pharmaceutical and chemical engineering department School of Medical Sciences German-Jordanian University, P.O. Box 35247 Amman 111800 Jordan
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4
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Tashrifi Z, Mohammadi-Khanaposhtani M, Larijani B, Hamedifar H, Ansari S, Mahdavi M. Vinylazides: versatile synthons and magical precursors for the construction of N-heterocycles. Mol Divers 2021; 25:2533-2570. [PMID: 32474890 DOI: 10.1007/s11030-020-10106-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 05/15/2020] [Indexed: 10/24/2022]
Abstract
Nowadays, application of vinylazides as precursors is a key method for the construction of N-heterocycles in organic synthesis. These versatile three-atom synthons can be converted into intermediates such as 2H-azirines, iminyl radicals, iminyl metal complexes, iminyl inions and nitrilium ions that subsequently afford a wide range of polyfunctional cyclic nitrogen-containing compounds. In this review, the reactions of vinylazides leading to these products (in the last decade) are categorized based on the types of the resulting N-heterocyclic rings and a brief and concise description of the reaction mechanisms is presented.
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Affiliation(s)
- Zahra Tashrifi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mohammad Mohammadi-Khanaposhtani
- College of Engineering, Faculty of Fouman, University of Tehran, Fouman, Iran
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Halleh Hamedifar
- College of Engineering, Faculty of Fouman, University of Tehran, Fouman, Iran
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Samira Ansari
- College of Engineering, Faculty of Fouman, University of Tehran, Fouman, Iran.
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran.
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran.
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5
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Zhan Z, Zhang M, Jiang P, He J, Luo N, Wang H, Wang M, Huang G. Selective Synthesis of Trisubstituted Imidazoles by Iodine‐Catalyzed [3+2] Cycloadditions. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhenzhen Zhan
- 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 P. R. China
| | - Mingming 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 P. R. China
| | - Pengbo Jiang
- Department Zhejiang Pharmaceutical Co., Ltd. Changhai Biological Branch Zhe Jiang Shaoxing P. R. China
| | - Jianping 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 P. R. China
| | - Nan Luo
- 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 P. R. China
| | - Hesong Wang
- 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 P. R. China
| | - Meng Wang
- 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 P. R. 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 P. R. China
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6
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Vinoth G, Indira S, Bharathi M, Archana G, Alves LG, Martins AM, Shanmuga Bharathi K. Catalytic conversion of 2,4,5-trisubstituted imidazole and 5-substituted 1H-tetrazole derivatives using a new series of half-sandwich (η6-p-cymene)Ruthenium(II) complexes with thiophene-2-carboxylic acid hydrazone ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120089] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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7
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Harisha MB, Dhanalakshmi P, Suresh R, Kumar RR, Muthusubramanian S. Access to highly substituted oxazoles by the reaction of α-azidochalcone with potassium thiocyanate. Beilstein J Org Chem 2020; 16:2108-2118. [PMID: 32952727 PMCID: PMC7476590 DOI: 10.3762/bjoc.16.178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 08/21/2020] [Indexed: 12/27/2022] Open
Abstract
The reactivity of α-azidochalcones has been explored for the preparation of highly substituted oxazoles via a 2H-azirine intermediate. The azidochalcones, when treated with potassium thiocyanate in the presence of potassium persulfate, lead to 2,4,5-trisubstituted oxazoles in good yields. Incidentally, 2-aminothiazoles are the products when ferric nitrate is employed instead of persulfate in the above reaction.
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Affiliation(s)
- Mysore Bhyrappa Harisha
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-625 021, Tamil Nadu, India.,Eurofins-Advinus Limited, Phase II, Peenya Industrial Area, Bangalore-560 058, India
| | - Pandi Dhanalakshmi
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-625 021, Tamil Nadu, India.,Department of Inorganic and Physical Chemistry, Indian Institute of Science (IISc), Bangalore-560 012, India
| | - Rajendran Suresh
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-625 021, Tamil Nadu, India
| | - Raju Ranjith Kumar
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-625 021, Tamil Nadu, India
| | - Shanmugam Muthusubramanian
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-625 021, Tamil Nadu, India
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8
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Abstract
Most of the synthetic chemical transformation reactions involve the use of different organic solvents. Unfortunately, some of these toxic solvents are used in chemical laboratory, industry and have been considered a very serious problem for the health, safety of workers and environmental damage through pollution. The purpose of green chemistry is to provide a path that reduces or eliminates the use of such hazardous toxic solvents. Therefore, the key factor of the green synthetic approach is to utilize renewable materials, nontoxic chemical and to perform the reactions under solvent-free conditions. In this review, we have discussed most recent literature survey on applications of solvent-free techniques in organic synthesis which would offer a new opportunity to a researcher to overcome the problem of using environmental harmful solvents.
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Affiliation(s)
- Sainath Zangade
- Department of Chemistry Madhavrao Patil ACS College Palam Dist. Parbhani-431720 (M S), India
| | - Pravinkumar Patil
- Research Laboratory in Organic Synthesis, Department of Chemistry, N.E.S. Science College, Nanded-431605(M S), India
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9
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Vaid R, Gupta M, Kour G, Gupta VK. Sulfoacetate Modified Silica Supported Indium(III) Triflate [SiSAIn(OTf)
2
]: A Novel Solid Acid Nano‐Catalyst And Investigation of Its Catalytic Potential for One‐Pot Synthesis of 1,2,4,5‐Tetrasubstituted Imidazole Derivatives. ChemistrySelect 2019. [DOI: 10.1002/slct.201902012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rupali Vaid
- Department of ChemistryUniversity of Jammu Jammu- 180006
| | - Monika Gupta
- Department of ChemistryUniversity of Jammu Jammu- 180006
| | - Gurpreet Kour
- Department of ChemistryUniversity of Jammu Jammu- 180006
| | - Vivek K. Gupta
- Post-Graduate Department of PhysicsUniversity of Jammu Jammu Tawi- 180006 India
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10
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Peytam F, Adib M, Mahernia S, Rahmanian-Jazi M, Jahani M, Masoudi B, Mahdavi M, Amanlou M. Isoindolin-1-one derivatives as urease inhibitors: Design, synthesis, biological evaluation, molecular docking and in-silico ADME evaluation. Bioorg Chem 2019; 87:1-11. [DOI: 10.1016/j.bioorg.2019.02.051] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 02/22/2019] [Accepted: 02/23/2019] [Indexed: 10/27/2022]
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11
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Mariappan A, Rajaguru K, Muthusubramanian S, Bhuvanesh N. A facile one pot synthesis of thiazolo[3,2-a]benzimidazole and pyran fused polyheterocyclic scaffolds. Org Biomol Chem 2019; 17:4196-4199. [PMID: 30931471 DOI: 10.1039/c9ob00300b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthesis of dihydro-4H-benzo[4,5]imidazo[2,1-b]pyrano[2,3-d]thiazole by a multicomponent route starting from 2-((1H-benzo[d]imidazol-2-yl)thio)-1-phenylethan-1-one, an aromatic aldehyde and malononitrile is described. This protocol features a metal free approach with good substrate scope and decent yield. The heterocyclic skeleton obtained in this study may have interesting biological properties.
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Affiliation(s)
- Arumugam Mariappan
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai - 625 021, India.
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12
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Rossi R, Angelici G, Casotti G, Manzini C, Lessi M. Catalytic Synthesis of 1,2,4,5‐Tetrasubstituted 1
H
‐Imidazole Derivatives: State of the Art. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801381] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Renzo Rossi
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Gaetano Angelici
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Gianluca Casotti
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Chiara Manzini
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Marco Lessi
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
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13
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Harisha MB, Dhanalakshmi P, Suresh R, Kumar RR, Muthusubramanian S, Bhuvanesh N. TMSOTf-Catalysed Synthesis of 2,4,5-Trisubstituted Imidazoles from Vinyl Azides and Nitriles. ChemistrySelect 2019. [DOI: 10.1002/slct.201801543] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mysore Bhyrappa Harisha
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj university, Madurai -; 625 021 Tamil Nadu India
- Advinus Therapeutics Limited; A TATA Enterprise; Bangalore - 560 058 India
| | - Pandi Dhanalakshmi
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj university, Madurai -; 625 021 Tamil Nadu India
| | - Rajendran Suresh
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj university, Madurai -; 625 021 Tamil Nadu India
| | - Raju Ranjith Kumar
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj university, Madurai -; 625 021 Tamil Nadu India
| | - Shanmugam Muthusubramanian
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj university, Madurai -; 625 021 Tamil Nadu India
| | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory; Department of Chemistry; Texas A & M University; College Station TX77842 USA
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14
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Sundar S, Rengan R. Direct synthesis of 2,4,5-trisubstituted imidazoles from primary alcohols by diruthenium(ii) catalysts under aerobic conditions. Org Biomol Chem 2019; 17:1402-1409. [DOI: 10.1039/c8ob02785d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A straightforward synthetic approach to 2,4,5-trisubstituted imidazoles from readily available primary alcohols using arene diruthenium(ii) catalysts has been described.
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Affiliation(s)
- Saranya Sundar
- Centre for Organometallic Chemistry
- School of Chemistry
- Bharathidasan University
- Tiruchirappalli 620 024
- India
| | - Ramesh Rengan
- Centre for Organometallic Chemistry
- School of Chemistry
- Bharathidasan University
- Tiruchirappalli 620 024
- India
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15
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Adib M, Rajai-Daryasarei S, Zhu LG. An efficient one-pot, multi-component diastereoselective synthesis of functionalized cyclopenta[c]chromenes. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.08.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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Adib M, Peytam F. An efficient synthesis of fully substituted pyrazolo[3,4-b]pyridin-5-amines from α-azidochalcones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Bansal R, Soni PK, Halve AK. Green Synthesis of 1,2,4,5-Tetrasubstituted and 2,4,5-Trisubstituted Imidazole Derivatives Involving One-pot Multicomponent Reaction. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3160] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ravi Bansal
- School of Studies in Chemistry; Jiwaji University; Gwalior Madhya Pradesh 474011 India
| | - Pradeep K. Soni
- School of Studies in Chemistry; Jiwaji University; Gwalior Madhya Pradesh 474011 India
| | - Anand K. Halve
- School of Studies in Chemistry; Jiwaji University; Gwalior Madhya Pradesh 474011 India
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18
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Preeti P, Singh KN. Multicomponent reactions: a sustainable tool to 1,2- and 1,3-azoles. Org Biomol Chem 2018; 16:9084-9116. [DOI: 10.1039/c8ob01872c] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present review outlines the recent advancements and pioneering efforts on the synthesis of 1,2/1,3-azoles employing a multicomponent strategy.
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Affiliation(s)
- Preeti Preeti
- Department of Chemistry (Centre of Advanced Study)
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Krishna Nand Singh
- Department of Chemistry (Centre of Advanced Study)
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005
- India
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19
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Adib M, Peytam F, Rahmanian-Jazi M, Mohammadi-Khanaposhtani M, Mahernia S, Bijanzadeh HR, Jahani M, Imanparast S, Faramarzi MA, Mahdavi M, Larijani B. Design, synthesis andin vitroα-glucosidase inhibition of novel coumarin-pyridines as potent antidiabetic agents. NEW J CHEM 2018. [DOI: 10.1039/c8nj02495b] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Herein, novel coumarin-pyridine derivatives4a–pas potent α-glucosidase inhibitors were synthesized by a one-pot and three-component synthesis method.
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Affiliation(s)
- Mehdi Adib
- School of Chemistry, College of Science, University of Tehran
- Tehran
- Iran
| | - Fariba Peytam
- School of Chemistry, College of Science, University of Tehran
- Tehran
- Iran
| | | | - Maryam Mohammadi-Khanaposhtani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences
- Babol
- Iran
| | - Shabnam Mahernia
- Department of Medicinal Chemistry, Drug Design and Development Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences
- Tehran
- Iran
- Pharmaceutical Sciences Research Center, The Institute of Pharmaceutical Sciences, Tehran University of Medical Sciences
- Tehran
| | - Hamid Reza Bijanzadeh
- Environmental Science Department, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University
- Tehran
- Iran
| | - Mehdi Jahani
- School of Chemistry, College of Science, University of Tehran
- Tehran
- Iran
| | - Somaye Imanparast
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Biotechnology Research Center, Tehran University of Medical Sciences
- Tehran
- Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Biotechnology Research Center, Tehran University of Medical Sciences
- Tehran
- Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences
- Tehran
- Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences
- Tehran
- Iran
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20
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Wang C, Lai J, Chen C, Li X, Cao H. Ag-Catalyzed Tandem Three-Component Reaction toward the Synthesis of Multisubstituted Imidazoles. J Org Chem 2017; 82:13740-13745. [DOI: 10.1021/acs.joc.7b02612] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Changcheng Wang
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P.R. of China
| | - Jialin Lai
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P.R. of China
| | - Cantao Chen
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P.R. of China
| | - Xuechen Li
- Department
of Chemistry, State Key Lab of Synthetic Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Hua Cao
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P.R. of China
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21
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A new synthetic strategy towards 2,4,5-trisubstituted 1H-imidazoles and highly substituted pyrrolo[1,2-c]imidazoles by use of α-azidochalcones via Michael addition-cyclization followed by Wittig reaction. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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22
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Xie J, Huang Y, Song H, Liu Y, Wang Q. Copper-Catalyzed Aerobic Oxidative [2 + 3] Cyclization/Aromatization Cascade Reaction: Atom-Economical Access to Tetrasubstituted 4,5-Biscarbonyl Imidazoles. Org Lett 2017; 19:6056-6059. [DOI: 10.1021/acs.orglett.7b02767] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jialin Xie
- State
Key Laboratory of Elemento-Organic Chemistry, Research Institute of
Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Yuanqiong Huang
- State
Key Laboratory of Elemento-Organic Chemistry, Research Institute of
Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Hongjian Song
- State
Key Laboratory of Elemento-Organic Chemistry, Research Institute of
Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Yuxiu Liu
- State
Key Laboratory of Elemento-Organic Chemistry, Research Institute of
Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Qingmin Wang
- State
Key Laboratory of Elemento-Organic Chemistry, Research Institute of
Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People’s Republic of China
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23
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Wang C, Wang E, Chen W, Zhang L, Zhan H, Wu Y, Cao H. Substrate-Controlled Selectivity Switch in a Three-Component Reaction: A Ag-Catalyzed Strategy for the Synthesis of Functionalized Imidazoles. J Org Chem 2017; 82:9144-9153. [DOI: 10.1021/acs.joc.7b01781] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Changcheng Wang
- School of Chemistry and Chemical
Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Enming Wang
- School of Chemistry and Chemical
Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Weixin Chen
- School of Chemistry and Chemical
Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Lijuan Zhang
- School of Chemistry and Chemical
Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Haiying Zhan
- School of Chemistry and Chemical
Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Yuanheng Wu
- School of Chemistry and Chemical
Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
| | - Hua Cao
- School of Chemistry and Chemical
Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, P. R. China
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24
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Iacobucci C, Jouini N, Massi L, Olivero S, De Angelis F, Duñach E, Gal JF. Quantitative Ligand Affinity Scales for Metal Triflate Salts: Application to Isomer Differentiation. Chempluschem 2017; 82:498-506. [DOI: 10.1002/cplu.201700124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Indexed: 01/13/2023]
Affiliation(s)
- Claudio Iacobucci
- Dipartimento di Scienze Fisiche e Chimiche; Università dell'Aquila; Via Vetoio, Coppito 67100 L'Aquila Italy
| | - Nédra Jouini
- Université Côte d'Azur, CNRS; Institut de Chimie de Nice, UMR 7272; 06108 Nice France
| | - Lionel Massi
- Université Côte d'Azur, CNRS; Institut de Chimie de Nice, UMR 7272; 06108 Nice France
| | - Sandra Olivero
- Université Côte d'Azur, CNRS; Institut de Chimie de Nice, UMR 7272; 06108 Nice France
| | - Francesco De Angelis
- Dipartimento di Scienze Fisiche e Chimiche; Università dell'Aquila; Via Vetoio, Coppito 67100 L'Aquila Italy
| | - Elisabet Duñach
- Université Côte d'Azur, CNRS; Institut de Chimie de Nice, UMR 7272; 06108 Nice France
| | - Jean-François Gal
- Université Côte d'Azur, CNRS; Institut de Chimie de Nice, UMR 7272; 06108 Nice France
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25
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Rajaguru K, Mariappan A, Muthusubramanian S, Bhuvanesh N. Divergent reactivity of α-azidochalcones with metal β-diketonates: tunable synthesis of substituted pyrroles and indoles. Org Chem Front 2017. [DOI: 10.1039/c6qo00541a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A divergent reactivity of α-azidochalcones with metal β-diketonates for the synthesis of substituted pyrroles and indoles is described.
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Affiliation(s)
- Kandasamy Rajaguru
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai - 625 021
- India
| | - Arumugam Mariappan
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai - 625 021
- India
| | | | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory
- Department of Chemistry
- Texas A & M University
- College Station
- USA
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26
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Wang C, Jiang H, Chen W, Dong J, Chen Z, Cao H. Silver-catalyzed [3 + 2] domino reaction: an efficient strategy to synthesize imidazole-5-carbaldehydes. Org Biomol Chem 2017. [DOI: 10.1039/c7ob01242j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An unprecedented regioselective silver-catalyzed [3 + 2] domino reaction of amidines and ynals for the formation of C–N bonds has been developed.
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Affiliation(s)
- Changcheng Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
- Guangdong Pharmaceutical University
- Zhongshan 528458
- China
| | - Hangqi Jiang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
- Guangdong Pharmaceutical University
- Zhongshan 528458
- China
| | - Weifeng Chen
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
- Guangdong Pharmaceutical University
- Zhongshan 528458
- China
| | - Jun Dong
- School of Traditional Chinese Medicine
- Guangdong Pharmaceutical University
- Guangzhou 510006
- China
| | - Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou
- China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
- Guangdong Pharmaceutical University
- Zhongshan 528458
- China
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27
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Sashidhara KV, Prasad Dodda. R, Upadhyay A, Reddy Palnati G, Modukuri RK, Kant R. Synthesis of Highly Substituted Imidazo[1,5-a
]quinoxalines Through a Multicomponent Reaction Followed by Deprotection-Cyclization. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600285] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Koneni V. Sashidhara
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension; Sitapur Road Lucknow - 226031 Uttar Pradesh, India
- Academy of Scientific and Innovative Research; New Delhi - 110025 India
| | - Ranga Prasad Dodda.
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension; Sitapur Road Lucknow - 226031 Uttar Pradesh, India
| | - Akanksha Upadhyay
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension; Sitapur Road Lucknow - 226031 Uttar Pradesh, India
| | - Gopala Reddy Palnati
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension; Sitapur Road Lucknow - 226031 Uttar Pradesh, India
| | - Ram K. Modukuri
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension; Sitapur Road Lucknow - 226031 Uttar Pradesh, India
| | - Ruchir Kant
- Molecular and Structural Biology Division; CSIR-Central Drug Research Institute, BS-10/1, Sector 10; Jankipuram Extension; Sitapur Road Lucknow - 226031 Uttar Pradesh, India
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28
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Yugandar S, Konda S, Parameshwarappa G, Ila H. One-Pot Synthesis of 2,4,5-Trisubstituted Imidazoles via [2 + 2 + 1] Cycloannulation of 1,3-Bishet(aryl)-monothio-1,3-diketones, α-Substituted Methylamines and Sodium Nitrite through α-Nitrosation of Enaminones. J Org Chem 2016; 81:5606-22. [PMID: 27194455 DOI: 10.1021/acs.joc.6b00938] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient one-pot synthesis of a series of diversely functionalized trisubstituted 4(5)het(aroyl)-2,5(4)-het(aryl)/alkylimidazoles from readily available 1,3-bishet(aryl)monothio-1,3-diketones has been reported. This novel sequential one-pot, three step protocol, wherein three new carbon nitrogen bonds are formed in contiguous fashion, involves in situ generation of enaminones by reaction of monothio-1,3-diketones with α-substituted methylamines, followed by their α-nitrosation with sodium nitrite and subsequent base mediated intramolecular heterocyclization of the resulting α-hydroxyiminoimines to trisubstituted imidazoles in high yields under mild conditions. These newly prepared 4(5)-het(aroyl)-5(4)-het(aryl)/alkylimidazoles are shown to exist as tautomeric mixture, however, their subsequent alkylation with methyl iodide in the presence of potassium carbonate affords 1-N-methy-2,5-bishet(aryl)-4-het(aroyl)imidazoles in highly regioselective fashion in most of the cases. Synthesis of few 4(5)-(2-hydroxyphenyl)-2,5(4)-substituted imidazoles, which are known to be good coordinating ligands, has also been reported. A probable mechanism for the formation of these imidazoles from hydroxyiminoimine intermediates has also been suggested.
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Affiliation(s)
- S Yugandar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore-560064, India
| | - S Konda
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore-560064, India
| | - G Parameshwarappa
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore-560064, India
| | - H Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore-560064, India
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29
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Rajaguru K, Mariappan A, Beneto AJ, Sivaraman G, Muthusubramanian S, Siva A, Bhuvanesh N. Nickel-Catalyzed Desulfitative C-C Cross Coupling: The Synthesis of 6-Aza-Tetrahydroquinazolines and their Solvatochromism. ChemistrySelect 2016. [DOI: 10.1002/slct.201600361] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kandasamy Rajaguru
- School of Chemistry; Madurai Kamaraj University; Madurai - 625 021 India
| | - Arumugam Mariappan
- School of Chemistry; Madurai Kamaraj University; Madurai - 625 021 India
| | | | - Gandhi Sivaraman
- School of Chemistry; Madurai Kamaraj University; Madurai - 625 021 India
| | | | - Ayyanar Siva
- School of Chemistry; Madurai Kamaraj University; Madurai - 625 021 India
| | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory, Department of Chemistry; Texas A & M University, College Station; Texas 77842 USA
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30
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Rajaguru K, Mariappan A, Muthusubramanian S, Bhuvanesh N. The Annulation of Vinyl Azides with Potassium Ethyl Xanthogenate: A Straightforward Synthesis of Thiazole-2(3H)-thiones. ChemistrySelect 2016. [DOI: 10.1002/slct.201600328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kandasamy Rajaguru
- Department of organic chemistry, School of chemistry; Madurai Kamaraj University; Madurai-620 021 India
| | - Arumugam Mariappan
- Department of organic chemistry, School of chemistry; Madurai Kamaraj University; Madurai-620 021 India
| | | | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory, Department of Chemistry; Texas A & M University, College Station; Texas 77842 USA
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31
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Zhang J, Gao Q, Wu X, Geng X, Wu YD, Wu A. Dual Roles of Methyl Ketones in Radziszewski-Type Reaction: Formal [2 + 1 + 1 + 1] Synthesis of 1,2,5-Trisubstituted Imidazoles. Org Lett 2016; 18:1686-9. [DOI: 10.1021/acs.orglett.6b00607] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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32
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Adiyala PR, Borra S, Kamal A, Maurya RA. Access to Imidazole Derivatives by Silver(I) Carbonate Mediated Coupling of Vinyl Azides with Secondary Amines. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Ambethkar S, Padmini V, Bhuvanesh N. A one-pot sequential five-component domino reaction for the expedient synthesis of polysubstituted pyrroles. NEW J CHEM 2016. [DOI: 10.1039/c5nj03444b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new protocol towards the synthesis of polysubstituted pyrroles via enaminone from one-pot five-component reactions under catalyst free conditions.
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Affiliation(s)
- Sethurajan Ambethkar
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
| | - Vediappen Padmini
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
| | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory
- Department of Chemistry
- Texas A&M University
- College Station
- USA
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34
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Sanasi PD, Majji RK, Bandaru S, Bassa S, Pinninti S, Vasamsetty S, Korupolu RB. Nano Copper Ferrite Catalyzed Sonochemical, One-Pot Three and Four Component Synthesis of Poly Substituted Imidazoles. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/mrc.2016.51004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Wu P, Qu J, Li Y, Guo X, Tang D, Meng X, Yan R, Chen B. Iron(III)/Iodine-Catalyzed C(sp2)H Activation of α,β-Unsaturated Aldehydes/Ketones with Amidines: Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500701] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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36
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Hu B, DiMagno SG. Reactivities of vinyl azides and their recent applications in nitrogen heterocycle synthesis. Org Biomol Chem 2015; 13:3844-55. [PMID: 25731154 DOI: 10.1039/c5ob00099h] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Nitrogen heterocycles are abundant in natural products and pharmaceuticals. An emerging interest among synthetic chemists is to apply vinyl azides as a pivotal three-atom synthon for the construction of structurally complex and diverse N-heterocyclic skeletons. The unique features of the azide group connected to an alkene moiety permit vinyl azides to function as electrophiles, nucleophiles, or radical acceptors; their access to diverse reaction pathways provides great opportunities to generate highly reactive intermediates with often unusual or unconventional reactivities. This tutorial review will systematically illustrate the reactivities of vinyl azides and describe recent breakthroughs in the development of new transformations that create N-heterocycles.
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Affiliation(s)
- Bao Hu
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou 310014, China.
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37
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Rajaguru K, Mariappan A, Suresh R, Manivannan P, Muthusubramanian S. Investigation on the reactivity of α-azidochalcones with carboxylic acids: Formation of α-amido-1,3-diketones and highly substituted 2-(trifluoromethyl)oxazoles. Beilstein J Org Chem 2015; 11:2021-8. [PMID: 26664623 PMCID: PMC4661007 DOI: 10.3762/bjoc.11.219] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 10/06/2015] [Indexed: 01/21/2023] Open
Abstract
The reaction of α-azidochalcones with carboxylic acids has been investigated resulting in the formation of α-amido-1,3-diketones under microwave irradiation via in situ formation of 2H-azirine intermediates. An interesting reaction is described wherein, with trifluoroacetic acid at lower temperature, it affords highly substituted 2-(trifluoromethyl)oxazoles. These flexible transformations proceed under solvent free conditions in good to excellent yields without any catalyst.
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Affiliation(s)
- Kandasamy Rajaguru
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, India
| | - Arumugam Mariappan
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, India
| | - Rajendran Suresh
- Syngene International Limited, Biocon, Bangalore, 560 100, India
| | - Periasamy Manivannan
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, India
| | - Shanmugam Muthusubramanian
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, India
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38
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Wang Y, Li J, He Y, Xie Y, Wang H, Pan Y. Synthesis of Polysubstituted Imidazoles and PyridinesviaSamarium(III) Triflate-Catalyzed [2+2+1] and [4+2] Annulations of Unactivated Aromatic Alkenes with Azides. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500584] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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39
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Efficient multi-component synthesis of 1,4-benzodiazepine-3,5-diones: a Petasis-based approach. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.060] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Aly S, Romashko M, Arndtsen BA. Multicomponent Synthesis of Substituted and Fused-Ring Imidazoles via Phospha-münchnone Cycloaddition. J Org Chem 2015; 80:2709-14. [PMID: 25688846 DOI: 10.1021/jo5028936] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Sara Aly
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Mikhail Romashko
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Bruce A. Arndtsen
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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41
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Chithiravel R, Rajaguru K, Muthusubramanian S, Bhuvanesh N. A direct green route towards the synthesis of 2-aroyl-3,5-diarylthiophenes from 1,5-diketones. RSC Adv 2015. [DOI: 10.1039/c5ra17829k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesis of 2-aroyl-3,5-diarylthiophenes has been achieved from various 1,5-diketones with elemental sulphur and morpholine under microwave irradiation following a greener protocol.
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Affiliation(s)
- Rengasamy Chithiravel
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| | - Kandasamy Rajaguru
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| | | | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory
- Department of Chemistry
- Texas A & M University
- College Station
- USA
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42
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Rajaguru K, Mariappan A, Manjusri R, Muthusubramanian S, Bhuvanesh N. An efficient desulfitative C–C cross coupling of fused thiazolidine-2-thione with boronic acids and boronic acid pinacol esters: formation of fused thiazoles. RSC Adv 2015. [DOI: 10.1039/c5ra17827d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
An efficient Pd(0)-catalyzed Cu(i)-mediated desulfitative C–C cross-coupling of benzo-fused thiazolidine-2-thione with boronic acids under neutral conditions and boronic acid pinacol esters under basic conditions has been demonstrated.
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Affiliation(s)
- Kandasamy Rajaguru
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| | - Arumugam Mariappan
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| | - Ramachandran Manjusri
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| | | | - Nattamai Bhuvanesh
- X-ray Diffraction Laboratory
- Department of Chemistry
- Texas A & M University
- College Station
- USA
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43
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Xiang L, Niu Y, Pang X, Yang X, Yan R. I2-catalyzed synthesis of substituted imidazoles from vinyl azides and benzylamines. Chem Commun (Camb) 2015; 51:6598-600. [DOI: 10.1039/c5cc01155h] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel and efficient I2-catalyzed oxidative tandem cyclization of simple vinyl azides and benzylamines has been developed for the synthesis of substituted imidazoles.
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Affiliation(s)
- Likui Xiang
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Yanning Niu
- Nanfang College (huaian) of Nanjing Forestry University
- Jiangsu
- China
| | - Xiaobo Pang
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xiaodong Yang
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
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44
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Boominathan SSK, Chen CY, Huang PJ, Hou RJ, Wang JJ. A sequential one-pot approach to 1,2,4,5-tetrasubstituted-2H-imidazole synthesis from disubstituted alkynes. NEW J CHEM 2015. [DOI: 10.1039/c5nj00959f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sequential one-pot method was developed to prepare 2H-imidazole scaffolds from internal alkynes and various ketones with good substrate scope and high yields.
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Affiliation(s)
| | - Chung-Yu Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Taiwan
| | - Po-Jui Huang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Taiwan
| | - Ruei-Jhih Hou
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Taiwan
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45
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Kaladevi S, Sridhar J, Abhilashamole B, Muthusubramanian S, Bhuvanesh N. Synthesis of substituted 1,3-diaryl-6,7-dihydro-1H-indol-4(5H)-ones from 1-aryl-2-arylaminoethanones. RSC Adv 2014. [DOI: 10.1039/c4ra03975k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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46
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Yamauchi T, Shibahara F, Murai T. Facile Synthetic Method for Diverse Polyfunctionalized Imidazoles by Means of Pd-Catalyzed C–H Bond Arylation of N-Methyl-4,5-dibromoimidazole. J Org Chem 2014; 79:7185-92. [DOI: 10.1021/jo5013493] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Takayuki Yamauchi
- Department of Chemistry and Biomolecular Science, Faculty
of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Fumitoshi Shibahara
- Department of Chemistry and Biomolecular Science, Faculty
of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Toshiaki Murai
- Department of Chemistry and Biomolecular Science, Faculty
of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- JST, ACT-C,
4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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47
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Kaladevi S, Thirupathi A, Sridhar J, Muthusubramanian S. Copper catalysed [3 + 2] cycloaddition with concomitant annulation: formation of 2,4-diaryl-1,4-oxazepan-7-ones via a ketenimine route. RSC Adv 2014. [DOI: 10.1039/c4ra08008d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A novel strategy of copper catalyzed cascade reaction involving intramolecular nucleophilic addition to N-sulfonylketenimine gratifyingly furnishing 1,4-diaryl oxazepan-7-one has been described.
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Affiliation(s)
- Selvam Kaladevi
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai–625 021, India
| | - Arumugam Thirupathi
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai–625 021, India
| | - Jeyaraman Sridhar
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai–625 021, India
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48
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Chen B, Ni H, Guo X, Zhang G, Yu Y. Facile preparation of 3,5-disubstituted-4-aminothiophene-2-carbaldehyde from a novel unexpected domino reaction of vinyl azides and 1,4-dithiane-2,5-diol. RSC Adv 2014. [DOI: 10.1039/c4ra08649j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile approach to provide 3,5-disubstituted-4-aminothiophene-2-carbaldehyde containing both the amino group and the aldehyde group has been developed.
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Affiliation(s)
- Binhui Chen
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Science
- Zhejiang University
- Hangzhou 310058, P. R. China
| | - Hangcheng Ni
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Science
- Zhejiang University
- Hangzhou 310058, P. R. China
| | - Xiao Guo
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Science
- Zhejiang University
- Hangzhou 310058, P. R. China
| | - Guolin Zhang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Science
- Zhejiang University
- Hangzhou 310058, P. R. China
| | - Yongping Yu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Science
- Zhejiang University
- Hangzhou 310058, P. R. China
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