1
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Khairul WM, Hashim F, Rahamathullah R, Mohammed M, Aisyah Razali S, Ahmad Tajudin Tuan Johari S, Azizan S. Exploring ethynyl-based chalcones as green semiconductor materials for optical limiting interests. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123776. [PMID: 38134650 DOI: 10.1016/j.saa.2023.123776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/09/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023]
Abstract
The fabrication of molecular electronics from non-toxic functional materials which eventually would potentially able to degrade or being breaking down into safe by-products have attracted much interests in recent years. Hence, in this study, the introduction of mixed highly functional substructures of chalcone (-CO-CH=CH-) and ethynylated (C≡C) as building blocks has shown ideal performance as solution-processed thin film candidatures. Two types of derivatives, (MM-3a) and (MM-3b) repectively, showed a substantial Stokes shifts at 75 nm and 116 nm, in which such emission exhibits an intramolecular charge transfer (ICT) state and fluoresce characteristics. The density functional theory (DFT) simulation shows that MM-3a and MM-3b exhibit low energy gaps of 3.70 eV and 2.81 eV, respectively. TD-DFT computations for molecular electrostatic potential (MEP) and frontier molecular orbitals (FMO) were also used to emphasise the structure-property relationship. A solution-processed thin film with a single layer of ITO/PEDOT:PSS/MM-3a-MM-3b/Au exhibited electroluminescence behaviour with orange and purple emissions when supplied with direct current (DC) voltages. To promote the safer application of the derivatives formed, ethynylated chalcone materials underwent toxicity studies toward Acanthamoeba sp. to determine their suitability as non-toxic molecules prior to the determination as safer materials in optical limiting interests. From the preliminary test, no IC50 value was obtained for both compounds via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay analysis and molecular docking analysis between MM-3a and MM-3b, with profilin protein exhibited weak bond interactions and attaining huge interaction distances.
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Affiliation(s)
- Wan M Khairul
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
| | - Fatimah Hashim
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Biological Security and Sustainability Research Interest Group (BIOSES), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
| | - Rafizah Rahamathullah
- Faculty of Chemical Engineering & Technology, University Malaysia Perlis, Level 1, Block S2, UniCITI Alam Campus, Sungai Chuchuh, Padang Besar, 02100 Perlis, Malaysia
| | - Mas Mohammed
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Siti Aisyah Razali
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Biological Security and Sustainability Research Interest Group (BIOSES), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Syed Ahmad Tajudin Tuan Johari
- Centre for Research in Infectious Diseases and Biotechnology, Faculty of Medicine, Universiti Sultan Zainal Abidin, Medical Campus. 20400 kuala Terengganu, Terengganu, Malaysia
| | - Suha Azizan
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
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2
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Ravindar L, Hasbullah SA, Hassan NI, Qin HL. Cross‐Coupling of C‐H and N‐H Bonds: a Hydrogen Evolution Strategy for the Construction of C‐N Bonds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lekkala Ravindar
- Universiti Kebangsaan Malaysia Fakulti Teknologi dan Sains Maklumat Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Siti Aishah Hasbullah
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Nurul Izzaty Hassan
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Hua-Li Qin
- Wuhan University of Technology School of Chemistry 430070 Hubei CHINA
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3
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Hui J, Ma Y, Zhao J, Cao H. Recent advances in the synthesis of indolizine and its derivatives by radical cyclization/cross-coupling. Org Biomol Chem 2021; 19:10245-10258. [PMID: 34792087 DOI: 10.1039/d1ob01431e] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Indolizine is a nitrogen-containing heterocycle that has a variety of potential biological activities, and some indolizine derivatives with excellent fluorescence properties can even be used as organic fluorescent molecules for biological and material applications. Thus, many approaches for their synthesis have been developed. Among them, radical-induced synthetic approaches are receiving increasing attention owing to their unique advantages, such as efficient heterocycle construction, efficient C-C or C-X bond construction, and high atom- and step-economy. This review systematically examines the current and latest synthetic strategies using radical species or radical intermediates for synthesizing indolizines and their derivatives. This review is classified into two parts based on the type of building blocks used for indolizine ring construction and the type of radical trigger for indolizine derivative construction. We anticipate that this review will provide a deep understanding of this topic, and ultimately help researchers to develop novel approaches for the synthesis of indolizine and its derivatives.
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Affiliation(s)
- Jieru Hui
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China.
| | - Yanlong Ma
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China.
| | - Jiaji Zhao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China.
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China.
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4
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Neto JSS, Zeni G. Recent Developments in the Cyclization of Alkynes and Nitrogen Compounds for the Synthesis of Indole Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de Química Universidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE Universidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
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5
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Su K, Guo X, Zhu L, Liu Y, Lu Y, Chen B. Indolizine synthesis via radical cyclization and demethylation of sulfoxonium ylides and 2-(pyridin-2-yl)acetate derivatives. Org Chem Front 2021. [DOI: 10.1039/d1qo00550b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel radical cross-coupling/cyclization of 2-(pyridin-2-yl)acetate derivatives and sulfoxonium ylides is developed, which provides a straightforward access to structurally diverse methylthio-substituted indolizine.
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Affiliation(s)
- Kexin Su
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xin Guo
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan
- China
| | - Liangwei Zhu
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Yafeng Liu
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan
- China
| | - Yixuan Lu
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
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6
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Zhang Q, Ablajan K, Wang B, Ma H, Guo Z. One-Pot Synthesis of Indolizines Using TBHP as the Methylene Source Under Metal-Free Condition. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901803] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qianwei Zhang
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
| | - Keyume Ablajan
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
| | - Bin Wang
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
| | - Huifang Ma
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
| | - Zhongqi Guo
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education & Xinjiang Uyghur Autonomous Region; College of Chemistry and Chemical Engineering; Xinjiang University; 830046 Urumqi PR China
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7
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Metal-free synthesis of novel indolizines from chromones and pyridinium salts via 1,3-dipolar cycloaddition, ring-opening and aromatization. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Chen Z, Liang P, Ma X, Luo H, Xu G, Liu T, Wen X, Zheng J, Ye H. Catalyst-Free Annulation of 2-Pyridylacetates and Ynals with Molecular Oxygen: An Access to 3-Acylated Indolizines. J Org Chem 2019; 84:1630-1639. [PMID: 30608171 DOI: 10.1021/acs.joc.8b02883] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A catalyst and additive-free annulation of 2-pyridylacetates and ynals under molecular oxygen was the first developed, affording 3-acylated indolizines in good to excellent yields. Molecular oxygen was used as the source of the carbonyl oxygen atom in indolizines. This approach was compatible with a wide range of functional groups, and especially it has been successfully extended to unsaturated double bonds and triple bonds, which were difficult to prepare by previous methods in a single step.
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Affiliation(s)
- Zhengwang Chen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China.,Hubei Key Laboratory of Processing and Application of Catalytic Materials , Huanggang Normal University , Huanggang , 438000 , China
| | - Pei Liang
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Xiaoyue Ma
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Haiqing Luo
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Guohai Xu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Tanggao Liu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Xiaowei Wen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Jing Zheng
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province , Gannan Normal University , Ganzhou , 341000 , China
| | - Hui Ye
- Hubei Key Laboratory of Processing and Application of Catalytic Materials , Huanggang Normal University , Huanggang , 438000 , China
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9
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Zhang Q, Wang B, Ma H, Ablajan K. Transition-metal-free catalyzed [3+2] cycloadditions/oxidative aromatization reactions for the synthesis of annulated indolizines. NEW J CHEM 2019. [DOI: 10.1039/c9nj03076j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A transition-metal-free catalyzed [3+2] cycloadditions/oxidative aromatization three-component reactions for direct construction of annulated indolizines was reported.
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Affiliation(s)
- Qianwei Zhang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Bin Wang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Huifang Ma
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Keyume Ablajan
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
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10
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11
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Nageswara Rao S, Reddy NNK, Samanta S, Adimurthy S. I2-Catalyzed Oxidative Amidation of Benzylamines and Benzyl Cyanides under Mild Conditions. J Org Chem 2017; 82:13632-13642. [DOI: 10.1021/acs.joc.7b02211] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sadu Nageswara Rao
- Academy of Scientific & Innovative Research, CSIR−Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, Gujarat, India
| | - N. Naresh Kumar Reddy
- Academy of Scientific & Innovative Research, CSIR−Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, Gujarat, India
| | - Supravat Samanta
- Academy of Scientific & Innovative Research, CSIR−Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, Gujarat, India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research, CSIR−Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, Gujarat, India
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12
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Wu X, Zhao P, Geng X, Zhang J, Gong X, Wu YD, Wu AX. Direct Oxidative Cleavage of Multiple Csp3–H Bonds and a C–C Bond in 2-(Pyridin-2-yl)acetate Derivatives: Formal [3 + 1 + 1] Synthesis of 3-(Pyridin-2-yl)indolizine Skeletons. Org Lett 2017; 19:3319-3322. [DOI: 10.1021/acs.orglett.7b01492] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- 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
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xingxing Gong
- 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
| | - An-xin 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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13
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Lepitre T, Le Biannic R, Othman M, Lawson AM, Daïch A. Metal-Free Cascade Approach toward Polysubstituted Indolizines from Chromone-Based Michael Acceptors. Org Lett 2017; 19:1978-1981. [PMID: 28394140 DOI: 10.1021/acs.orglett.7b00309] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient cascade transformation toward indolizine-based molecules has been developed. This process leads to the rapid construction of two C-N bonds and one C-C bond without the need of any metal catalysis. The approach involves easily accessible chromone-based Michael acceptors and propargylamine derivatives as starting materials. This cascade constitutes a novel and very competitive alternative to the well reported strategies using pyridine or pyrrole derivatives for accessing the indolizine ring with substituents at uncommon C-positions.
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Affiliation(s)
- Thomas Lepitre
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Raphael Le Biannic
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Mohamed Othman
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Ata Martin Lawson
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Adam Daïch
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
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14
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Visible-light- induced aerobic dioxygenation of styrenes under metal- and additive-free ambient conditions. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.073] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Samanta S, Ravi C, Rao SN, Joshi A, Adimurthy S. Visible-light-promoted selective C–H amination of heteroarenes with heteroaromatic amines under metal-free conditions. Org Biomol Chem 2017; 15:9590-9594. [DOI: 10.1039/c7ob02504a] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The regioselective C–H amination of quinoline amides (C5) and imidazopyridines (C3) under transition-metal-free conditions at room temperature with a high degree of functional group tolerance is reported.
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Affiliation(s)
- Supravat Samanta
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Chitrakar Ravi
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Sadu Nageswara Rao
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Abhisek Joshi
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
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16
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Pandey K, Kaswan P, Saroj, Kumar A. Synthesis of 2-Carbonylimidazo[1,2-a]pyridinesviaIodine-mediated Intramolecular Cyclization of 2-Amino-N-propargylpyridinium Bromides. ChemistrySelect 2016. [DOI: 10.1002/slct.201601294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Khima Pandey
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 Rajasthan India
| | - Pinku Kaswan
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 Rajasthan India
| | - Saroj
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 Rajasthan India
| | - Anil Kumar
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 Rajasthan India
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17
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Joshi A, Mohan DC, Adimurthy S. Lewis Acid-Catalyzed Denitrogenative Transannulation of Pyridotriazoles with Nitriles: Synthesis of Imidazopyridines. J Org Chem 2016; 81:9461-9469. [PMID: 27681075 DOI: 10.1021/acs.joc.6b01742] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The synthesis of imidazo[1,5-a]pyridines through denitrogenative transannulation of pyridotriazoles with nitriles using BF3·Et2O as catalyst has been described. The combination of solvents (dichlorobenzene-dichloroethane) plays a crucial role in achieving quantitative yields of desired products under metal-free conditions.
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Affiliation(s)
- Abhisek Joshi
- Academy of Scientific & Innovative Research , Central Salt & Marine Chemicals Research Institute (CSIR), G.B. Marg, Bhavnagar, 364 002 Gujarat, India
| | - Darapaneni Chandra Mohan
- Academy of Scientific & Innovative Research , Central Salt & Marine Chemicals Research Institute (CSIR), G.B. Marg, Bhavnagar, 364 002 Gujarat, India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research , Central Salt & Marine Chemicals Research Institute (CSIR), G.B. Marg, Bhavnagar, 364 002 Gujarat, India
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18
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Samanta S, Donthiri RR, Ravi C, Adimurthy S. Phenyliodonium Diacetate Mediated Oxidative Functionalization of Styrenes with Molecular Oxygen: Synthesis of α-Oxygenated Ketones. J Org Chem 2016; 81:3457-63. [DOI: 10.1021/acs.joc.6b00266] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Supravat Samanta
- Academy of Scientific & Innovative Research, CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002. Gujarat, India
| | - Ramachandra Reddy Donthiri
- Academy of Scientific & Innovative Research, CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002. Gujarat, India
| | - Chitrakar Ravi
- Academy of Scientific & Innovative Research, CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002. Gujarat, India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research, CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002. Gujarat, India
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19
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Gu J, Cai C. Synthesis of substituted indolizines via radical oxidative decarboxylative annulation of 2-(pyridin-2-yl)acetate derivatives with α,β-unsaturated carboxylic acids. Org Biomol Chem 2016; 14:9966-9969. [DOI: 10.1039/c6ob01902a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A copper mediated radical oxidative annulation of 2-(pyridin-2-yl)acetate derivatives with α,β-unsaturated carboxylic acids is developed.
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Affiliation(s)
- Jian Gu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
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