1
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Yang D, Zhu M, Wang T, He Y, Xie L, Zhang J, Cheng B. Catalyst-free inverse-electron-demand aza-Diels-Alder reaction of 4,4-dicyano-2-methylenebut-3-enoates and 1,3,5-triazinanes: access to polysubstituted tetrahydropyridines. Org Biomol Chem 2023. [PMID: 37334910 DOI: 10.1039/d3ob00511a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
An inverse-electron-demand aza-Diels-Alder reaction between 4,4-dicyano-2-methylenebut-3-enoates and 1,3,5-triazinanes under catalyst-free and additive-free conditions was developed, which provided a highly convenient and straightforward method to construct a series of polyfunctionalized tetrahydropyridines in high yields. This strategy features numerous advantages, including high efficiency, good functional group tolerance, broad substrate scope, and environmentally friendly conditions.
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Affiliation(s)
- Dezhi Yang
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China.
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Meng Zhu
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China.
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Taimin Wang
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Yixuan He
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Lang Xie
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China.
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Jiayong Zhang
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Bin Cheng
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China.
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China.
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2
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Diastereo- and Enantioselective Synthesis of Highly Functionalized Tetrahydropyridines by Recyclable Novel Bifunctional C2-Symmetric Ionic Liquid–Supported (S)-Proline Organocatalyst. Catalysts 2023. [DOI: 10.3390/catal13010209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
An efficient, novel bifunctional C2-symmetric ionic liquid–supported (S)-proline organocatalyst 7 was developed for a one-pot, five-component reaction involving β-keto esters 8, aryl aldehydes 9, and aryl amines 10, affording highly functionalized tetrahydropyridines 11a–o by simultaneous generation of fives bonds and two stereogenic centers with extraordinary diastereo- and enantioselectivities (up to >99:1 dr, 95:5 er) in isopropanol with high yields (up to 92%). This protocol provides quick access to diverse enantio-enriched, highly functionalized diastereo- and enantioselective tetrahydropyridines in a green medium without any column chromatographic purification. The catalyst was recycled five times without significant loss of its catalytic activity.
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3
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Hu F, Chu Y, Cao Z, Li Y, Hui XP. Enantioselective Synthesis of Functionalized Tetrahydropyridines through Iridium-Catalyzed Formal [5+1] Annulation. Org Lett 2022; 24:6945-6950. [PMID: 36129810 DOI: 10.1021/acs.orglett.2c02750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient iridium-catalyzed asymmetric formal [5+1] annulation by in situ generation of enamines as N-nucleophiles for the synthesis of tetrahydropyridine derivatives is disclosed. The methodology offers direct access to a wide variety of chiral tetrahydropyridine derivatives in moderate to good yields and excellent enantioselectivity.
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Affiliation(s)
- Fang Hu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yunpeng Chu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhengqiang Cao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yucheng Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xin-Ping Hui
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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4
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del Corte X, Martínez de Marigorta E, Palacios F, Vicario J, Maestro A. An overview of the applications of chiral phosphoric acid organocatalysts in enantioselective additions to CO and CN bonds. Org Chem Front 2022. [DOI: 10.1039/d2qo01209j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since 2004, chiral phosphoric acids (CPAs) have emerged as highyl efficient organocatalysts, providing excellent results in a wide reaction scope. In this review, the applications of CPA for enantioselective additions to CO and CN bonds are covered.
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Affiliation(s)
- Xabier del Corte
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Edorta Martínez de Marigorta
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Francisco Palacios
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Javier Vicario
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Aitor Maestro
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
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5
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Enamines and their variants as intermediates for synthesis of aza-heterocycles with applications in MCRs. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132545] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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6
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Woldegiorgis AG, Han Z, Lin X. Chiral Phosphoric Acid‐Catalyzed Enantioselective Synthesis of Pyrazole‐Based Unnatural α‐Amino Acid Derivatives. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alemayehu Gashaw Woldegiorgis
- Center of Chemistry for Frontier Technologies, Department of Chemistry Zhejiang University Hangzhou 310027 People's Republic of China
| | - Zhao Han
- Center of Chemistry for Frontier Technologies, Department of Chemistry Zhejiang University Hangzhou 310027 People's Republic of China
| | - Xufeng Lin
- Center of Chemistry for Frontier Technologies, Department of Chemistry Zhejiang University Hangzhou 310027 People's Republic of China
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7
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Lin X, Wang L, Han Z, Chen Z. Chiral Spirocyclic Phosphoric Acids and Their Growing Applications. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000446] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xufeng Lin
- Department of Chemistry, Zhejiang University Hangzhou Zhejiang 310027 China
| | - Lei Wang
- Department of Chemistry, Zhejiang University Hangzhou Zhejiang 310027 China
| | - Zhao Han
- Department of Chemistry, Zhejiang University Hangzhou Zhejiang 310027 China
| | - Zhouli Chen
- Department of Chemistry, Zhejiang University Hangzhou Zhejiang 310027 China
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8
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Koay WL, Mei GJ, Lu Y. Facile access to benzofuran-fused tetrahydropyridines via catalytic asymmetric [4 + 2] cycloaddition of aurone-derived 1-azadienes with 3-vinylindoles. Org Chem Front 2021. [DOI: 10.1039/d0qo01236j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective [4 + 2] cycloaddition reaction of 1-azadienes with 3-vinylindoles, catalyzed by chiral phosphoric acid has been developed to furnish a range of benzofuran-fused tetrahydropyridines with three contiguous stereogenic centers.
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Affiliation(s)
- Wai Lean Koay
- Department of Chemistry
- National University of Singapore
- Singapore
- NUS Graduate School for Integrative Sciences & Engineering (NGS)
- National University of Singapore
| | - Guang-Jian Mei
- Department of Chemistry
- National University of Singapore
- Singapore
| | - Yixin Lu
- Department of Chemistry
- National University of Singapore
- Singapore
- NUS Graduate School for Integrative Sciences & Engineering (NGS)
- National University of Singapore
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9
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Pratibha, Rajput JK. Autocombustion‐Promoted Synthesis of Lanthanum Iron Oxide: Application as Heterogeneous Catalyst for Synthesis of Piperidines, Substituted Amines and Light‐Assisted Degradations. ChemistrySelect 2020. [DOI: 10.1002/slct.202002656] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Pratibha
- Department of Chemistry Dr. B.R Ambedkar National Institute of Technology Jalandhar Punjab 144011 India
| | - Jaspreet K. Rajput
- Department of Chemistry Dr. B.R Ambedkar National Institute of Technology Jalandhar Punjab 144011 India
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10
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Shukla P, Asati A, Bhardiya SR, Singh M, Rai VK, Rai A. Cu(I)-Induced Activation of Furan for Inverse Electron Demand ADAR with Alkenes toward Regioselective Synthesis of Tetrahydropyridine. J Org Chem 2020; 85:7772-7780. [PMID: 32479077 DOI: 10.1021/acs.joc.0c00279] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aza-Diels-Alder reaction of various alkenes and in situ formed 1-aza-1,3-dienes from the reaction of furan/pyrrole/thiophene and PhINTs for the regioselective synthesis of tetrahydropyridine (THP) derivatives was realized. The reaction was catalyzed by TpMe2Cu as a catalyst under very mild reaction conditions. Structurally different alkenes, along with an alkyne, have been utilized as dienophiles to afford a wide range of different THP derivatives up to 70% yield. The potential application of the envisaged method was also investigated by a gram-scale synthesis.
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Affiliation(s)
- Prashant Shukla
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ambika Asati
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495009, India
| | - Smita R Bhardiya
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495009, India
| | - Manorama Singh
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495009, India
| | - Vijai K Rai
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495009, India
| | - Ankita Rai
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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11
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Saha M, Das AR. Nanocrystalline ZnO: A Competent and Reusable Catalyst for the Preparation of Pharmacology Relevant Heterocycles in the Aqueous Medium. CURRENT GREEN CHEMISTRY 2020. [DOI: 10.2174/2213346107666200218122718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
:Nanoparticle catalyzed synthesis is a green and convenient method to achieve most of the chemical transformations in water or other green solvents. Nanoparticle ensures an easy isolation process of catalyst as well as products from the reaction mixture avoiding the hectic work up procedure. Zinc oxide is a biocompatible, environmentally benign and economically viable nanocatalyst with effectivity comparable to the other metal nanocatalyst employed in several reaction strategies. This review mainly focuses on the recent applications of zinc oxide in the synthesis of biologically important heterocyclic molecules under sustainable reaction conditions.:Application of zinc oxide in organic synthesis: Considering the achievable advantages of this nanocatalyst, presently several research groups are paying attention in anchoring zincoxide or its modified structure in several types of organic conversions e.g. multicomponent reactions, ligand-free coupling reactions, cycloaddition reaction, etc. The advantages and limitations of this nanocatalyst are also demonstrated. The present study aims to highlight the recent multifaceted applications of ZnO towards the synthesis of diverse heterocyclic motifs. Being a promising biocompatible nanoparticle, this catalyst has an important contribution in the fields of synthetic chemistry and medicinal chemistry.
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Affiliation(s)
- Moumita Saha
- Department of Chemistry, University of Calcutta, Kolkata-700009, India
| | - Asish R. Das
- Department of Chemistry, University of Calcutta, Kolkata-700009, India
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12
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Rykaczewski KA, Groso EJ, Vonesh HL, Gaviria MA, Richardson AD, Zehnder TE, Schindler CS. Tetrahydropyridines via FeCl3-Catalyzed Carbonyl–Olefin Metathesis. Org Lett 2020; 22:2844-2848. [DOI: 10.1021/acs.orglett.0c00918] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Katie A. Rykaczewski
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Emilia J. Groso
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Hannah L. Vonesh
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Mario A. Gaviria
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Alistair D. Richardson
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Troy E. Zehnder
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Corinna S. Schindler
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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13
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Madhu Kumar Reddy K, Peddanna K, Varalakshmi M, Bakthavatchala Reddy N, Sravya G, Zyryanov GV, Suresh Reddy C. Ceric ammonium nitrate (CAN) catalyzed synthesis and α-glucosidase activity of some novel tetrahydropyridine phosphonate derivatives. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2018.1550641] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Kotha Peddanna
- Department of Bio-Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
| | - Mavallur Varalakshmi
- Department of Humanities and Sciences, Sri Venkateswara College of Engineering and Technology, Chittoor, Andhra Pradesh, India
| | - Nemallapudi Bakthavatchala Reddy
- Department of Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, Yekaterinburg, Russian Federation
| | - Gundala Sravya
- Department of Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, Yekaterinburg, Russian Federation
| | - Grigory V. Zyryanov
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, Yekaterinburg, Russian Federation
- Ural Division of the Russian Academy of Sciences, I. Ya. Postovskiy Institute of Organic Synthesis, Yekaterinburg, Russian Federation
| | - Cirandur Suresh Reddy
- Department of Chemistry, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
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14
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Sengupta A, Maity S, Mondal A, Ghosh P, Rudra S, Mukhopadhyay C. Pseudo five component reaction towards densely functionalized spiro[indole-3,2'-pyrrole] by picric acid, an efficient syn-diastereoselective catalyst: insight into the diastereoselection on C(sp 3)-C(sp 3) axial conformation. Org Biomol Chem 2019; 17:1254-1265. [PMID: 30656313 DOI: 10.1039/c8ob02849d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A new series of highly-functionalized spiro compounds of pyrrole were synthesized by a one pot, step-economic condensation of isatin, arylamine and β-keto ester catalyzed by wet picric acid. Initially, the reaction was proposed with an expectation of the formation of a multi-spiro heterocyclic framework of highly-substituted piperidine. However, the isomeric compound was characterized to be a five-membered pyrrole derivative with a diverse scope of variations having different types of substituents in the three components respectively. The possibility of formation of various diastereomers around the hindered single bond and the spiro carbon was limited, as only syn products syn-60 and syn-60' were isolated in all the reactions performed under the standard conditions. Probably the reactions were mediated by the si-facial formation of the bonds in a picric acid stabilized charge transfer complex transition state. Also, the manner a molecule achieves the most stabilized energy minimized arrangement with all its substituents in space was studied by DFT calculations where syn-60 was more stable than syn-60'. The studies on the formation of syn-60 and syn-60' were carried out by variation of electronic and steric factors in each of the components of the reactions.
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Affiliation(s)
- Ayon Sengupta
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India.
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15
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Rahman A, Xie E, Lin X. Organocatalytic asymmetric synthesis of benzazepinoindole derivatives with trifluoromethylated quaternary stereocenters by chiral phosphoric acid catalysts. Org Biomol Chem 2019; 16:1367-1374. [PMID: 29406543 DOI: 10.1039/c8ob00055g] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An enantioselective aza-Friedel-Crafts reaction of trifluoromethyl dihydrobenzoazepinoindoles with pyrroles catalyzed by a chiral spirocyclic phosphoric acid was developed. This methodology provides a facile route to CF3- and pyrrole-containing benzazepinoindoles bearing quaternary stereocenters in good yields and with moderate to excellent enantioselectivities (up to 93% ee). Indoles were also investigated as electron-rich aromatic substrates to afford the corresponding chiral heterocycles with good yields and considerable enantioselectivities. The introduction of CF3 shows a remarkable fluorine effect and increases the activation and stereoinduction.
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Affiliation(s)
- Abdul Rahman
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
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16
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Echemendía R, da Silva GP, Kawamura MY, de la Torre AF, Corrêa AG, Ferreira MAB, Rivera DG, Paixão MW. A stereoselective sequential organocascade and multicomponent approach for the preparation of tetrahydropyridines and chimeric derivatives. Chem Commun (Camb) 2019; 55:286-289. [DOI: 10.1039/c8cc06871b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A stereoselective multicomponent approach leading to a novel class of pentasubstituted tetrahydropyridines is described.
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Affiliation(s)
- Radell Echemendía
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry, Federal University of São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
- Brazil
| | - Gustavo P. da Silva
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry, Federal University of São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
- Brazil
| | - Meire Y. Kawamura
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry, Federal University of São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
- Brazil
| | - Alexander F. de la Torre
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry, Federal University of São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
- Brazil
| | - Arlene G. Corrêa
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry, Federal University of São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
- Brazil
| | - Marco A. B. Ferreira
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry, Federal University of São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
- Brazil
| | - Daniel G. Rivera
- Center for Natural Products Research
- Faculty of Chemistry
- University of Havana
- Havana
- Cuba
| | - Márcio W. Paixão
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry, Federal University of São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
- Brazil
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17
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Kaur G, Devi M, Kumari A, Devi R, Banerjee B. One-Pot Pseudo Five Component Synthesis of Biologically Relevant 1,2,6-Triaryl-4-arylamino-piperidine-3-ene-3- carboxylates: A Decade Update. ChemistrySelect 2018. [DOI: 10.1002/slct.201801887] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Gurpreet Kaur
- Department of Chemistry; Indus International University V.P.O. Bathu, Distt. Una, Himachal Pradesh -; 174301 India
| | - Mamta Devi
- Department of Chemistry; Indus International University V.P.O. Bathu, Distt. Una, Himachal Pradesh -; 174301 India
| | - Anjana Kumari
- Department of Chemistry; Indus International University V.P.O. Bathu, Distt. Una, Himachal Pradesh -; 174301 India
| | - Rekha Devi
- Department of Chemistry; Indus International University V.P.O. Bathu, Distt. Una, Himachal Pradesh -; 174301 India
| | - Bubun Banerjee
- Department of Chemistry; Indus International University V.P.O. Bathu, Distt. Una, Himachal Pradesh -; 174301 India
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18
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Shan H, Pan R, Lin X. Synthesis and application of a new chiral monodentate spiro phosphoramidite ligand based on hexamethyl-1,1'-spirobiindane backbone in asymmetric hydroamination/arylation of alkenes. Org Biomol Chem 2018; 16:6183-6186. [PMID: 30113062 DOI: 10.1039/c8ob01785a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The design and synthesis of a new chiral monodentate spiro phosphoramidite ligand based on a hexamethyl-1,1'-spirobiindane scaffold has been accomplished. The ligand could serve as an elegant chiral monodentate ligand in the Pd-catalyzed asymmetric hydroamination/arylation of alkenes leading to chiral imidazolidin-2-ones with good enantioselectivities.
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Affiliation(s)
- Huanyu Shan
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
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19
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Dudognon Y, Rodriguez J, Constantieux T, Bugaut X. Organocatalytic Enantioselective Synthesis of Tetrahydropyridines. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800236] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Yohan Dudognon
- CNRS, Centrale Marseille, iSm2; Aix Marseille Univ; Marseille France
| | - Jean Rodriguez
- CNRS, Centrale Marseille, iSm2; Aix Marseille Univ; Marseille France
| | | | - Xavier Bugaut
- CNRS, Centrale Marseille, iSm2; Aix Marseille Univ; Marseille France
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20
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Morita-Baylis-Hillman enal-based triple cascade strategy for anti-selective synthesis of highly functionalized tetrahydropyridines using iminium-enamine catalysis. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Ramesh R, Jayamathi J, Karthika C, Malecki JG, Lalitha A. An Organocatalytic Newer Synthetic Strategy Toward the Access of Polyfunctionalized 4 H-Pyrans via Multicomponent Reactions. Polycycl Aromat Compd 2018. [DOI: 10.1080/10406638.2018.1454968] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Rathinam Ramesh
- Department of Chemistry, Periyar University, Salem, Tamil Nadu, India
| | - Jayaraj Jayamathi
- Department of Chemistry, Periyar University, Salem, Tamil Nadu, India
| | | | | | - Appaswami Lalitha
- Department of Chemistry, Periyar University, Salem, Tamil Nadu, India
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22
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Wang L, Rahman A, Lin X. Enantioselective synthesis of cyclic quaternary α-amino acid derivatives by chiral phosphoric acid catalysis. Org Biomol Chem 2018; 15:6033-6041. [PMID: 28681891 DOI: 10.1039/c7ob01149k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A highly enantioselective aza-Friedel-Crafts reaction of N-sulfonyl cyclic ketimines with indoles catalyzed by chiral phosphoric acids has been developed. This methodology provides an efficient and facile route to indole-containing chiral cyclic α-amino acid derivatives bearing a quaternary stereocenter in high yields and up to 98% enantioselectivity.
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Affiliation(s)
- Lei Wang
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
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23
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Chang S, Wang L, Lin X. Synthesis and application of a new hexamethyl-1,1′-spirobiindane-based chiral bisphosphine (HMSI-PHOS) ligand in asymmetric allylic alkylation. Org Biomol Chem 2018. [DOI: 10.1039/c8ob00279g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new class of hexamethyl-1,1′-spirobiindane-based chiral bisphosphine ligand was synthesized and used in Pd-catalyzed asymmetric allylic alkylation reactions.
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Affiliation(s)
- Shirui Chang
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Lei Wang
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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24
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Rahman A, Zhou Q, Lin X. Asymmetric organocatalytic synthesis of chiral 3,3-disubstituted oxindolesviaa 1,6-conjugate addition reaction. Org Biomol Chem 2018; 16:5301-5309. [DOI: 10.1039/c8ob01169a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The chiral spirocyclic phosphoric acid-catalyzed enantioselective 1,6-conjugate addition reaction ofpara-quinone methides derived fromN-unprotected isatins with indoles was developed.
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Affiliation(s)
- Abdul Rahman
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Qiaoxia Zhou
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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25
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Rahman A, Lin X. Development and application of chiral spirocyclic phosphoric acids in asymmetric catalysis. Org Biomol Chem 2018; 16:4753-4777. [DOI: 10.1039/c8ob00900g] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This review describes the synthetic methods for the preparation of chiral spirocyclic phosphoric acids (SPAs), and their dynamically developing application for catalytic enantioselective transformations.
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Affiliation(s)
- Abdul Rahman
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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26
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Tian JM, Yuan YH, Xie YY, Zhang SY, Ma WQ, Zhang FM, Wang SH, Zhang XM, Tu YQ. Catalytic Asymmetric Cascade Using Spiro-Pyrrolidine Organocatalyst: Efficient Construction of Hydrophenanthridine Derivatives. Org Lett 2017; 19:6618-6621. [PMID: 29181982 DOI: 10.1021/acs.orglett.7b03330] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A newly developed SPD (spiro-pyrrolidine) organocatalyst has been demonstrated to enable an asymmetric aza-Michael/Michael/aldol cyclization cascade, in which two six-membered rings (B/C) and three stereocenters have been constructed in a catalytic one-step process. It is so far the most efficient method for construction of hydrophenanthridine derivatives featuring high enantioselectivity. The trans- or cis-fused B/C-rings can be selectively assembled in a substrate-controlled manner. Moreover, this cascade could magnify to gram scale without loss of enanioselectivity.
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Affiliation(s)
- Jin-Miao Tian
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Yong-Hai Yuan
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Yu-Yang Xie
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Shu-Yu Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Wen-Qiang Ma
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Shao-Hua Wang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Yong-Qiang Tu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, China.,State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
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27
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Badamshin AG, Lobov AN, Dokichev VA. Synthesis of polyfunctionalized 1,2,3,4-tetrahydropyridines from ethyl acetoacetate and cyclic aminals. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428017100062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Two stereoisomers of butenedioic acid-mediated synthesis of tetrahydropyridine carboxylate derivatives with the same stereochemistry. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3127-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Preparation of 2,3-trans-substituted piperidines from optically active β-amino-α-methylene esters: Synthesis of optically active (2S,3R)-(−)-epi-CP-99,994. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Parmar D, Sugiono E, Raja S, Rueping M. Addition and Correction to Complete Field Guide to Asymmetric BINOL-Phosphate Derived Brønsted Acid and Metal Catalysis: History and Classification by Mode of Activation; Brønsted Acidity, Hydrogen Bonding, Ion Pairing, and Metal Phosphates. Chem Rev 2017; 117:10608-10620. [DOI: 10.1021/acs.chemrev.7b00197] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Ahmadi T, Mohammadi Ziarani G, Gholamzadeh P, Mollabagher H. Recent advances in asymmetric multicomponent reactions (AMCRs). ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.04.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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32
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Xie E, Rahman A, Lin X. Asymmetric synthesis of CF3- and indole-containing tetrahydro-β-carbolines via chiral spirocyclic phosphoric acid-catalyzed aza-Friedel–Crafts reaction. Org Chem Front 2017. [DOI: 10.1039/c7qo00229g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective aza-Friedel–Crafts reaction of indoles with 1-trifluoromethyl-3,4-dihydro-β-carbolines has been developed to afford tetrahydro-β-carbolines with a CF3- and indole-containing quaternary stereocenter by using chiral phosphoric acid catalysis.
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Affiliation(s)
- En Xie
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Abdul Rahman
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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33
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Ramesh R, Madhesh R, Malecki JG, Lalitha A. Piperidine Catalyzed Four-component Strategy for the Facile Access of Polyfunctionalized 1,4-Dihydropyridines at Ambient Conditions. ChemistrySelect 2016. [DOI: 10.1002/slct.201601358] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rathinam Ramesh
- Department of Chemistry; Periyar University; Salem- 636011, Tamil Nadu India
| | - Raji Madhesh
- Department of Chemistry; Periyar University; Salem- 636011, Tamil Nadu India
| | - Jan Grzegorz Malecki
- Department of Crystallography; University of Silesia; Szkolna 9 40-006 Katowice Poland
| | - Appaswami Lalitha
- Department of Chemistry; Periyar University; Salem- 636011, Tamil Nadu India
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34
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Govender T, Arvidsson PI, Maguire GEM, Kruger HG, Naicker T. Enantioselective Organocatalyzed Transformations of β-Ketoesters. Chem Rev 2016; 116:9375-437. [PMID: 27463615 DOI: 10.1021/acs.chemrev.6b00156] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The β-ketoester structural motif continues to intrigue chemists with its electrophilic and nucleophilic sites. Proven to be a valuable tool within organic synthesis, natural product, and medicinal chemistry, reports on chiral β-ketoester molecular skeletons display a steady increase. With the reignition of organocatalysis in the past decade, asymmetric methods available for the synthesis of this structural unit has significantly expanded, making it one of the most exploited substrates for organocatalytic transformations. This review provides comprehensive information on the plethora of organocatalysts used in stereoselective organocatalyzed construction of β-ketoester-containing compounds.
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Affiliation(s)
- Thavendran Govender
- Catalysis and Peptide Research Unit, University of KwaZulu Natal , Durban, 4001, South Africa
| | - Per I Arvidsson
- Catalysis and Peptide Research Unit, University of KwaZulu Natal , Durban, 4001, South Africa.,P. I. Arvidsson, Science for Life Laboratory, Drug Discovery and Development Platform and Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet SE-171 77 Stockholm, Sweden
| | - Glenn E M Maguire
- Catalysis and Peptide Research Unit, University of KwaZulu Natal , Durban, 4001, South Africa
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, University of KwaZulu Natal , Durban, 4001, South Africa
| | - Tricia Naicker
- Catalysis and Peptide Research Unit, University of KwaZulu Natal , Durban, 4001, South Africa
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35
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Gurubrahamam R, Chen YM, Huang WY, Chan YT, Chang HK, Tsai MK, Chen K. Dihydrooxazine N-Oxide Intermediates as Resting States in Organocatalytic Kinetic Resolution of Functionalized Nitroallylic Amines with Aldehydes. Org Lett 2016; 18:3046-9. [DOI: 10.1021/acs.orglett.6b00493] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ramani Gurubrahamam
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan R.O.C
| | - Yan ming Chen
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan R.O.C
| | - Wan-Yun Huang
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan R.O.C
| | - Yu-Te Chan
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan R.O.C
| | - Hsiang-Kai Chang
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan R.O.C
| | - Ming-Kang Tsai
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan R.O.C
| | - Kwunmin Chen
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan R.O.C
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36
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[bmim]OH: An efficient catalyst for the synthesis of mono and bis spirooxindole derivatives in ethanol at room temperature. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.01.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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37
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Click and facile access of substituted tetrahydro-4H-chromenes using 2-aminopyridine as a catalyst. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2557-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Chuang SC, Sung SP, Deng JC, Chiou MF, Hsu DS. Multicomponent reactions of phosphines, enynedioates and benzylidene malononitriles generated highly substituted cyclopentenes through an unexpected phosphine α-addition-δ-evolvement of an anion pathway. Org Biomol Chem 2016; 14:2306-17. [PMID: 26806006 DOI: 10.1039/c5ob02445e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Multicomponent reactions of phosphines, enynedioates and benzylidene malononitriles provide highly substituted syn-selective cyclopentenes appending the phosphorus ylide moiety in good yield with a diastereoselectivity of up to 100% through resonance-derived 1,5-dipolar species as the key intermediates, via the nucleophilic α(δ')-attack of phosphines toward enynedioates followed by addition to benzylidene malononitriles and 5-exo-dig cyclization. Through computational analyses, the overall reactions for the formation of syn- and anti-diastereomers are both exothermic with 65.6 and 66.3 kcal mol(-1) at the B3LYP-D3/6-31G(d) level of theory and were found to be kinetically controlled, which favours the formation of syn-diastereomers.
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Affiliation(s)
- Shih-Ching Chuang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan, Republic of China.
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39
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Ishmiyarov ER, Rakhimova NT, Latypova DR, Spirikhin LV, Abdullin MI, Dokichev VA. One-pot synthesis of polysubstituted 1,2,3,4-tetrahydropyridines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428015120192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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Ramaraju P, Mir NA, Singh D, Kumar I. Enantioselective synthesis of 1,2,5,6-tetrahydropyridines (THPs) via proline-catalyzed direct Mannich-cyclization/domino oxidation–reduction sequence: application for medicinally important N-heterocycles. RSC Adv 2016. [DOI: 10.1039/c6ra12965j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
An enantioselective multi-component synthesis of 1,2,5,6-tetrahydropyridines (THPs) has been developed through a one-pot domino-process.
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Affiliation(s)
- Panduga Ramaraju
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Nisar A. Mir
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Deepika Singh
- Instrumentation Division
- IIIM-CSIR Lab
- Jammu 180 001
- India
| | - Indresh Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
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41
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Abbasi M, Seyedi SM, Sadeghian H, Akhbari M, Enayaty M, Shiri A. TiCl2·2H2O catalyzed one-pot synthesis of highly functionalized tetrahydropiperidines and evaluation of their antimicrobial activities. HETEROCYCL COMMUN 2016. [DOI: 10.1515/hc-2015-0081] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
AbstractOne-pot condensation reaction of ethyl acetoacetate, various substituted benzaldehydes and anilines in the presence of TiCl
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42
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Kataria M, Pramanik S, Kumar M, Bhalla V. One-pot multicomponent synthesis of tetrahydropyridines promoted by luminescent ZnO nanoparticles supported by the aggregates of 6,6-dicyanopentafulvene. Chem Commun (Camb) 2015; 51:1483-6. [PMID: 25493350 DOI: 10.1039/c4cc09058f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pot-shaped fluorescent aggregates of 6,6-dicyanopentafulvene derivative serve as reactors and stabilizers for the preparation of luminescent ZnO nanoparticles, which exhibit high catalytic efficiency in one-pot multicomponent synthesis of tetrahydropyridines.
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Affiliation(s)
- Meenal Kataria
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar-143005, Punjab, India.
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43
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Shen X, Wang Y, Wu T, Mao Z, Lin X. Triply Hydrogen-Bond-Directed Enantioselective Assembly of Pyrrolobenzo-1,4-diazine Skeletons with Quaternary Stereocenters. Chemistry 2015; 21:9039-43. [DOI: 10.1002/chem.201500823] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Indexed: 12/22/2022]
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44
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Kumar TP, Shekhar RC, Sunder KS, Vadaparthi R. Myrtanyl-prolinamide: a new chiral organocatalyst for stereoselective aldol reactions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Abbasi M. Design, preparation and characterization of a new ionic liquid, 1,3-disulfonic acid benzimidazolium chloride, as an efficient and recyclable catalyst for the synthesis of tetrahydropyridine under solvent-free conditions. RSC Adv 2015. [DOI: 10.1039/c5ra10699k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the present work, 1,3-disulfonic acid benzimidazolium chloride as a new ionic liquid, is synthesized, and characterized by studying its FT-IR, 1H NMR, 13C NMR as well as mass spectra.
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Affiliation(s)
- Mohsen Abbasi
- Department of Chemistry
- Islamic Azad University
- Lamerd
- Iran
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46
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Fan L, Takizawa S, Takeuchi Y, Takenaka K, Sasai H. Pd-catalyzed enantioselective intramolecular α-arylation of α-substituted cyclic ketones: facile synthesis of functionalized chiral spirobicycles. Org Biomol Chem 2015; 13:4837-40. [DOI: 10.1039/c5ob00382b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Synthesis of chiral spirocyclic ketones was accomplishedviathe Pd-catalyzed intramolecular α-arylation of α-substituted cyclic ketones. The obtained spirocyclic ketone could be converted into an acid–base organocatalyst.
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Affiliation(s)
- Lulu Fan
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
| | - Shinobu Takizawa
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
| | - Yoshiki Takeuchi
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
| | - Kazuhiro Takenaka
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
| | - Hiroaki Sasai
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
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47
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Dudognon Y, Du H, Rodriguez J, Bugaut X, Constantieux T. Organocatalytic multicomponent synthesis of enantioenriched polycyclic 1,2,3,4-tetrahydropyridines: key substrate selection enabling regio- and stereoselectivities. Chem Commun (Camb) 2015; 51:1980-2. [DOI: 10.1039/c4cc08469a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A completely regioselective and highly enantioselective organocatalytic multicomponent synthesis of 1,2,3,4-tetrahydropyridines is described.
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Affiliation(s)
- Yohan Dudognon
- Aix Marseille Université
- Centrale Marseille
- CNRS
- iSm2 UMR 7313
- Marseille
| | - Haiying Du
- Aix Marseille Université
- Centrale Marseille
- CNRS
- iSm2 UMR 7313
- Marseille
| | - Jean Rodriguez
- Aix Marseille Université
- Centrale Marseille
- CNRS
- iSm2 UMR 7313
- Marseille
| | - Xavier Bugaut
- Aix Marseille Université
- Centrale Marseille
- CNRS
- iSm2 UMR 7313
- Marseille
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48
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Lewis acid mediated three-component one-flask regioselective synthesis of densely functionalized 4-amino-1,2-dihydropyridines via cascade Knoevenagel/Michael/cyclization sequence. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Daraei M, Zolfigol MA, Derakhshan-Panah F, Shiri M, Kruger HG, Mokhlesi M. Synthesis of tetrahydropyridines by one-pot multicomponent reaction using nano-sphere silica sulfuric acid. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2014. [DOI: 10.1007/s13738-014-0548-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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Blümel M, Chauhan P, Hahn R, Raabe G, Enders D. Asymmetric synthesis of tetrahydropyridines via an organocatalytic one-pot multicomponent Michael/aza-Henry/cyclization triple domino reaction. Org Lett 2014; 16:6012-5. [PMID: 25379786 PMCID: PMC4611353 DOI: 10.1021/ol503024d] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Indexed: 12/22/2022]
Abstract
A low loading of a quinine-derived squaramide efficiently catalyzes the triple-domino Michael/aza-Henry/cyclization reaction between 1,3-dicarbonyl compounds, β-nitroolefins, and aldimines to provide tetrahydropyridines bearing three contiguous stereogenic centers in good yields, excellent enantiomeric excesses, and up to high diastereomeric ratios.
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Affiliation(s)
- Marcus Blümel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Pankaj Chauhan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Robert Hahn
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Gerhard Raabe
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Dieter Enders
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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