1
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Paul D, Chatterjee PN. The Rise of Carbon‐based Leaving Groups. ChemistrySelect 2022. [DOI: 10.1002/slct.202200965] [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)
- Dipankar Paul
- Department of Chemistry National Institute of Technology Meghalaya Bijni Complex, Laitumkhrah Shillong 793003 Meghalaya INDIA
| | - Paresh Nath Chatterjee
- Department of Chemistry National Institute of Technology Meghalaya Bijni Complex, Laitumkhrah Shillong 793003 Meghalaya INDIA
- Department of Chemistry National Institute of Technology Durgapur Mahatma Gandhi Avenue Durgapur 713209 West Bengal INDIA
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2
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Ghouse S, Sreenivasulu C, Kishore DR, Satyanarayana G. Recent developments by zinc based reagents/catalysts promoted organic transformations. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132580] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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3
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Neto BAD, Rocha RO, Rodrigues MO. Catalytic Approaches to Multicomponent Reactions: A Critical Review and Perspectives on the Roles of Catalysis. Molecules 2021; 27:132. [PMID: 35011363 PMCID: PMC8746711 DOI: 10.3390/molecules27010132] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 01/17/2023] Open
Abstract
In this review, we comprehensively describe catalyzed multicomponent reactions (MCRs) and the multiple roles of catalysis combined with key parameters to perform these transformations. Besides improving yields and shortening reaction times, catalysis is vital to achieving greener protocols and to furthering the MCR field of research. Considering that MCRs typically have two or more possible reaction pathways to explain the transformation, catalysis is essential for selecting a reaction route and avoiding byproduct formation. Key parameters, such as temperature, catalyst amounts and reagent quantities, were analyzed. Solvent effects, which are likely the most neglected topic in MCRs, as well as their combined roles with catalysis, are critically discussed. Stereocontrolled MCRs, rarely observed without the presence of a catalytic system, are also presented and discussed in this review. Perspectives on the use of catalytic systems for improved and greener MCRs are finally presented.
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Affiliation(s)
- Brenno A. D. Neto
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
| | - Rafael O. Rocha
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
| | - Marcelo O. Rodrigues
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
- School of Physics and Astronomy, Nottingham University, Nottingham NG72RD, UK
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4
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Ponpao N, Senapak W, Saeeng R, Jaratjaroonphong J, Sirion U. Metal- and solvent-free synthesis of aniline- and phenol-based triarylmethanes via Brönsted acidic ionic liquid catalyzed Friedel-Crafts reaction. RSC Adv 2021; 11:22692-22709. [PMID: 35480415 PMCID: PMC9034371 DOI: 10.1039/d1ra03724b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/18/2021] [Indexed: 01/04/2023] Open
Abstract
A beneficial, scalable and efficient methodology for the synthesis of aniline-based triarylmethanes has been established through the double Friedel-Crafts reaction of commercial aldehydes and primary, secondary or tertiary anilines using Brönsted acidic ionic liquid as a powerful catalyst, namely [bsmim][NTf2]. This protocol was successfully performed under metal- and solvent-free conditions with a broad range of substrates, giving the corresponding aniline-based triarylmethane products in good to excellent yields (up to 99%). In addition, alternative aromatic nucleophiles such as phenols and electron-rich arenes were also studied using this useful approach to achieve a diversity of triarylmethane derivatives in high to excellent yields. Brönsted acidic ionic liquid catalyzed the synthesis of aniline- and phenol-based triarylmethanes via Friedel-Crafts reaction under metal- and solvent-free conditions.![]()
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Affiliation(s)
- Nipaphorn Ponpao
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University Sangesook ChonBuri 20131 Thailand +66-3-839-3494 +66-98-026-2181
| | - Warapong Senapak
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University Sangesook ChonBuri 20131 Thailand +66-3-839-3494 +66-98-026-2181
| | - Rungnapha Saeeng
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University Sangesook ChonBuri 20131 Thailand +66-3-839-3494 +66-98-026-2181.,The Research Unit in Synthetic Compounds and Synthetic Analogues from Natural Product for Drug Discovery (RSND), Burapha University Chonburi 20131 Thailand
| | - Jaray Jaratjaroonphong
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University Sangesook ChonBuri 20131 Thailand +66-3-839-3494 +66-98-026-2181.,The Research Unit in Synthetic Compounds and Synthetic Analogues from Natural Product for Drug Discovery (RSND), Burapha University Chonburi 20131 Thailand
| | - Uthaiwan Sirion
- Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University Sangesook ChonBuri 20131 Thailand +66-3-839-3494 +66-98-026-2181.,The Research Unit in Synthetic Compounds and Synthetic Analogues from Natural Product for Drug Discovery (RSND), Burapha University Chonburi 20131 Thailand
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5
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Chantana C, Jaratjaroonphong J. FeCl 3·6H 2O as a Mild Catalyst for Nucleophilic Substitution of Symmetrical Bis(indoyl)methanes. J Org Chem 2021; 86:2312-2327. [PMID: 33481609 DOI: 10.1021/acs.joc.0c02466] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this paper, unsymmetrical bis(indolyl)methane (BIM) and 3-alkylindole derivatives are smoothly synthesized from symmetrical BIMs with a variety of nucleophiles including heteroaromatic/aromatic compounds, allylsilane and alkynylsilane. FeCl3·6H2O is found to be a mild and highly effective catalyst for this nucleophilic substitution reaction in which N-methyl-2-phenylindole behaves as a good leaving group in the Csp3-Csp2 bond cleavage reaction. The operational ease, nonexpensive and environmentally friendly catalyst, mild reaction conditions, broad functional group tolerance, and scalability of this reaction strategy are advantages of the present procedure.
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Affiliation(s)
- Chayamon Chantana
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi 20131, Thailand
| | - Jaray Jaratjaroonphong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi 20131, Thailand.,Research Unit in Synthetic Compounds and Synthetic Analogues form Natural Product for Drug Discovery (RSND), Burapha University, Chonburi 20131, Thailand
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6
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Ferric Chloride Catalyzed 1,3-Rearrangement of (Phenoxymethyl)heteroarenes to (Heteroarylmethyl)phenols. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000419] [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]
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7
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Yang Q, Wu R, Wu K, Gu Y, Yu Y, Xu D. Direct synthesis of completely unsymmetrical triarylmethanes via Fe(III) salt‐mediated
in situ o
‐quinone methides process. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qi Yang
- Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, School of Science Tianjin Chengjian University Jinjing Road Tianjin 300384 China
| | - Run‐Shi Wu
- National Engineering Research Center of Pesticide (Tianjin) State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Weijin Road Tianjin 300071 China
| | - Ke‐Xin Wu
- National Engineering Research Center of Pesticide (Tianjin) State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Weijin Road Tianjin 300071 China
| | - Ying‐Chun Gu
- Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, School of Science Tianjin Chengjian University Jinjing Road Tianjin 300384 China
| | - Ya‐Qin Yu
- Key Laboratory for Water Environment and Resources Tianjin Normal University Binshui Road Tianjin 300387 China
| | - Da‐Zhen Xu
- National Engineering Research Center of Pesticide (Tianjin) State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Weijin Road Tianjin 300071 China
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8
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Abstract
A novel synthetic route toward vilazodone is described by using 4-cyanoaniline and 5-bromo-2-hydroxybenzaldehyde as starting materials, with an overall yield of 24% and 99% purity. First, the intermediate (3-(4-chlorobutyl)-1 H-indole-5-carbonitrile) is synthesized via diazotization of 4-cyanoaniline, followed by Fischer indole cyclization with 6-chlorohexanal. Subsequently, another intermediate, 5-(piperazin-1-yl)benzofuran-2-carboxamide, is generated via aromatic nucleophilic substitution of 5-bromobenzofuran-2-carboxamide with piperazine. Finally, vilazodone is obtained via nucleophilic substitution of the above two key intermediates by treatment with Et3N/K2CO3. In comparison to the original process, this route avoids the use of expensive and toxic reagents and resolves issues such as safety, environmental concerns, and high costs.
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Affiliation(s)
- Fan Hu
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Weike Su
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P.R. China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P.R. China
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9
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Depa N, Erothu H. One‐Pot Three‐Component Synthesis of 3‐Aminoalkyl Indoles Catalyzed by Molecular Iodine. ChemistrySelect 2019. [DOI: 10.1002/slct.201902832] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Navaneetha Depa
- Department of ChemistryKoneruLakshmaiah Education Foundation (KLEF), Vaddeswaram Guntur-522 502 Andhra Pradesh India
| | - Harikrishna Erothu
- Centre for Advanced Energy Studies (CAES)Department of ChemistryKoneru Lakshmaiah Education Foundation (KLEF), Vaddeswaram Guntur-522 502 Andhra Pradesh India
- Department of ChemistryKoneruLakshmaiah Education Foundation (KLEF), Vaddeswaram Guntur-522 502 Andhra Pradesh India
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10
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Tachallait H, Safir Filho M, Marzag H, Bougrin K, Demange L, Martin AR, Benhida R. A straightforward and versatile FeCl3 catalyzed Friedel–Crafts C-glycosylation process. Application to the synthesis of new functionalized C-nucleosides. NEW J CHEM 2019. [DOI: 10.1039/c8nj06300a] [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
Rapid and straightforward access to C-nucleosides using an inexpensive FeCl3 catalyst.
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Affiliation(s)
- Hamza Tachallait
- Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique
- URAC23
- Faculté des Sciences
- 1014 Rabat
- Morocco
| | - Mauro Safir Filho
- Université Côte d’Azur
- CNRS
- Institut de Chimie de Nice UMR 7272
- 06108 Nice
- France
| | - Hamid Marzag
- Université Côte d’Azur
- CNRS
- Institut de Chimie de Nice UMR 7272
- 06108 Nice
- France
| | - Khalid Bougrin
- Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique
- URAC23
- Faculté des Sciences
- 1014 Rabat
- Morocco
| | - Luc Demange
- Université Côte d’Azur
- CNRS
- Institut de Chimie de Nice UMR 7272
- 06108 Nice
- France
| | - Anthony R. Martin
- Université Côte d’Azur
- CNRS
- Institut de Chimie de Nice UMR 7272
- 06108 Nice
- France
| | - Rachid Benhida
- Université Côte d’Azur
- CNRS
- Institut de Chimie de Nice UMR 7272
- 06108 Nice
- France
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11
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Zhu Y, Chen F, Zhou Y, Kang Z, Zhang M, Deng H, Song L. A consecutive one-pot two-step approach to trifluoromethylated pyrazolo[4ʹ,3ʹ:5,6]pyrano[2,3-b]indoles promoted by molecular iodine. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.04.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Metal and acid-free visible light-mediated Friedel-Crafts alkylation reactions of indole with anilines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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13
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Khan GA, War JA, Kumar A, Sheikh IA, Saxena A, Das R. A facile synthesis of novel indole derivatives as potential antitubercular agents. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1016/j.jtusci.2016.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Gulzar A. Khan
- Heterocyclic Synthesis and Electroanalytical Laboratory, Department of Chemistry, HariSingh Gour Central University, Sagar, India
| | - Javeed A. War
- Synthetic Organic Chemistry & Molecular Modelling Laboratory, Department of Chemistry, HariSingh Gour Central University, Sagar, India
| | - Arun Kumar
- Neuroscience and Endocrinology Laboratory, Department of Zoology, HariSingh Gour Central University, Sagar, India
| | - Imtiyaz A. Sheikh
- Microbial Technology Laboratory, Department of Botany, HariSingh Gour Central University, Sagar, India
| | - Aarti Saxena
- Heterocyclic Synthesis and Electroanalytical Laboratory, Department of Chemistry, HariSingh Gour Central University, Sagar, India
| | - Ratnesh Das
- Heterocyclic Synthesis and Electroanalytical Laboratory, Department of Chemistry, HariSingh Gour Central University, Sagar, India
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14
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Mohammadi Ziarani G, Moradi R, Ahmadi T, Lashgari N. Recent advances in the application of indoles in multicomponent reactions. RSC Adv 2018; 8:12069-12103. [PMID: 35539427 PMCID: PMC9079367 DOI: 10.1039/c7ra13321a] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/05/2018] [Indexed: 01/17/2023] Open
Abstract
Indoles are some of the most versatile and common nitrogen-based heterocyclic scaffolds and are frequently used in the synthesis of various organic compounds. Indole based compounds are very important among heterocyclic structures due to their biological and pharmaceutical activities. The last decade, in particular, has witnessed considerable activity towards the synthesis of indole derivatives due to the possibilities for the design of polycyclic structures by the incorporation of multiple fused heterocyclic scaffolds in an attempt to achieve promising new heterocycles with chemical and biomedical relevance. In this study, we provide an overview on recent applications of indole in the multicomponent reactions for the synthesis of various heterocyclic compounds during the period of 2012 to 2017.
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Affiliation(s)
| | - Razieh Moradi
- Department of Chemistry, Alzahra University Tehran Iran +98 21 88041344 +98 21 88041344
| | - Tahereh Ahmadi
- Department of Chemistry, Alzahra University Tehran Iran +98 21 88041344 +98 21 88041344
| | - Negar Lashgari
- Department of Chemistry, Alzahra University Tehran Iran +98 21 88041344 +98 21 88041344
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15
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Porous CuO catalysed green synthesis of some novel 3-alkylated indoles as potent antitubercular agents. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2016.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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16
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Wang X, Jia C, Feng Y, Wang L, Cui X. One-Pot Synthesis of N
-Alkyl Benzotriazoles via a Brønsted Acid-Catalyzed Three-Component Reaction. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700873] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xiangdong Wang
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 People's Republic of China
| | - Chunqi Jia
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 People's Republic of China
| | - Yadong Feng
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 People's Republic of China
| | - Lianhui Wang
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 People's Republic of China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 People's Republic of China
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17
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Najafi E, Behbahani FK. Three-component synthesis of 3-(diarylmethyl)indoles using Fe(ClO4)3/SiO2 as catalyst. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s107042801703023x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Das T, Debnath S, Maiti R, Maiti DK. Multifold C–C Coupling and Unorthodox Cyclization Catalysis for Selective Synthesis of Indolotriarylmethanes, Indolocarbazoles, and Their Analogues: A Control Experiment Study. J Org Chem 2016; 82:688-700. [DOI: 10.1021/acs.joc.6b02689] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tuluma Das
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Sudipto Debnath
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Rituparna Maiti
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Dilip K. Maiti
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
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19
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Chinta BS, Baire B. Catalyst free, three-component approach for unsymmetrical triarylmethanes (TRAMs). Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Huang W, Yang J, Li X, Yuan L, Ma Y, Zhou Q, Liang D. Catalyst-free synthesis of 3-(1-arylsulfonylalkyl)indoles via three-component reaction of indoles, carbonyls, and arenesulfinic acids. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2015.1100182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Wenzhong Huang
- Department of Chemistry, Kunming University, Kunming, China
| | - Juan Yang
- Department of Chemistry, Kunming University, Kunming, China
| | - Xiangguang Li
- Department of Chemistry, Kunming University, Kunming, China
| | - Lin Yuan
- Department of Chemistry, Kunming University, Kunming, China
| | - Yinhai Ma
- Department of Chemistry, Kunming University, Kunming, China
| | - Qinglong Zhou
- Department of Chemistry, Kunming University, Kunming, China
- Ruichang No. 1 Middle School, Ruichang, China
| | - Deqiang Liang
- Department of Chemistry, Kunming University, Kunming, China
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21
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Kothandapani J, Ganesan A, Selva Ganesan S. Magnetically separable sulfonic acid catalysed one-pot synthesis of diverse indole derivatives. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Xin Z, Lescot C, Friis SD, Daasbjerg K, Skrydstrup T. Organocatalyzed CO2 Trapping Using Alkynyl Indoles. Angew Chem Int Ed Engl 2015; 54:6862-6. [PMID: 25907260 DOI: 10.1002/anie.201500233] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 03/11/2015] [Indexed: 12/27/2022]
Abstract
The first organocatalyzed trapping of CO2 through C-C and C-O bond formation is reported. Alkynyl indoles together with catalytic amounts of an organic base and five equivalents of CO2 resulted in the formation new heterocyclic structures. These tricyclic indole-containing products were successfully prepared under mild reaction conditions from aromatic, heteroaromatic, and aliphatic alkynyl indoles with complete regioselectivity. Further investigations suggest that C-C bond formation is the initial intermolecular step, followed by lactone-forming C-O bond formation.
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Affiliation(s)
- Zhuo Xin
- Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus (Denmark) http://www.skrydstrup-group.com
| | - Camille Lescot
- Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus (Denmark) http://www.skrydstrup-group.com
| | - Stig D Friis
- Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus (Denmark) http://www.skrydstrup-group.com
| | - Kim Daasbjerg
- Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus (Denmark) http://www.skrydstrup-group.com
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus (Denmark) http://www.skrydstrup-group.com.
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Xin Z, Lescot C, Friis SD, Daasbjerg K, Skrydstrup T. Organocatalyzed CO2Trapping Using Alkynyl Indoles. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500233] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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24
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Kothandapani J, Ganesan A, Vairaprakash P, Ganesan SS. Copper(II) chloride assisted aryl exchange in arylmethanes: a simple and efficient route to triarylmethane derivatives. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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25
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Shinde VV, Jeong YT. A green and convenient protocol for the synthesis of diarylmethanes via a one-pot, three-component reaction catalyzed by a novel silica tungstic acid (STA) under solvent-free conditions. CR CHIM 2015. [DOI: 10.1016/j.crci.2014.05.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Ganesan A, Kothandapani J, Nanubolu JB, Ganesan SS. Oleic acid: a benign Brønsted acidic catalyst for densely substituted indole derivative synthesis. RSC Adv 2015. [DOI: 10.1039/c5ra02906f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Oleic acid was identified to catalyse bis(indolyl)methane and densely functionalized 4H-chromene, spirooxindole and spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] derivative synthesis in good to excellent yields.
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Affiliation(s)
- Asaithampi Ganesan
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | | | - Jagadeesh Babu Nanubolu
- Room No 150
- Centre for X-ray Crystallography
- Indian Institute of Chemical Technology
- Hyderabad- 500607
- India
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Reddy DNK, Chandrasekhar KB, Ganesh YSS, Gorantla SS, Ramanjaneyulu S, Kumar KS, Pal M. PMA-SiO2–Mediated MCR in PEG-400: A Greener aza-Friedel–Crafts Reaction Leading to 3-Arylmethyl/Diarylmethyl Indoles. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.966392] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Dinne Naresh Kumar Reddy
- Custom Pharmaceuticals Services and Dr. Reddy’s Laboratories Ltd., Hyderabad, India
- College of Engineering, JNTU, Anantapur, Andhra Pradesh, India
| | | | | | | | | | - K. Shiva Kumar
- Department of Chemistry, Osmania University, Hytderabad, India
| | - Manojit Pal
- Dr. Reddy’s Institute of Life Sciences, University of Hyderabad Campus, Hyderabad, India
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28
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Wang H, Cai J, Huang H, Deng GJ. Palladium-Catalyzed Phthalazinone Synthesis Using Paraformaldehyde as Carbon Source. Org Lett 2014; 16:5324-7. [DOI: 10.1021/ol502498y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Huamin Wang
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jinhui Cai
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Huawen Huang
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Key
Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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