1
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Swami B, Kumari N, Maruthi M, Kunjunny NK, Menon RS. A formal vinylic substitution reaction for the synthesis of α,β-unsaturated enol esters and their anticancer potential. Org Biomol Chem 2024; 22:3273-3278. [PMID: 38572769 DOI: 10.1039/d4ob00401a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Arylsulfonyl group-bearing α,β-unsaturated enol esters were readily assembled via the Cs2CO3-mediated union of 2-bromoallyl sulfones and cinnamic acids. The overall transformation is equivalent to an sp2 carbon-oxygen coupling reaction, and therefore constitutes a formal vinylic substitution. Several of the products display promising levels of antiproliferative activities higher than that of the anticancer drug carboplatin. Thiophenol reacted with 2-bromoallyl sulfones under identical conditions to afford α-thiophenyl-α'-tosyl acetone via an apparent aerial oxidation.
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Affiliation(s)
- Bhawna Swami
- Department of Chemistry, Central University of Haryana, Mahendergarh, Haryana 123 031, India
| | - Neetu Kumari
- Department of Biochemistry, Central University of Haryana, Mahendergarh, Haryana 123 031, India
| | - Mulaka Maruthi
- Department of Biochemistry, Central University of Haryana, Mahendergarh, Haryana 123 031, India
| | - Neethu K Kunjunny
- Department of Chemistry, University of Calicut, Malappuram, Kerala 673 635, India.
| | - Rajeev S Menon
- Department of Chemistry, University of Calicut, Malappuram, Kerala 673 635, India.
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2
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Wang Y, Yang B, Wang B, Li Y, Zhang Z, Wang Y, Guo W, Tan Z, Zheng L. Palladium-Copper-Catalyzed Oxidative Intermolecular [2 + 2 + 2] Coupling-Annulation: Regioselective Synthesis of Multiaryl-Substituted Benzenes. J Org Chem 2024; 89:4579-4594. [PMID: 38506748 DOI: 10.1021/acs.joc.3c02816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
A palladium-catalyzed intermolecular [2 + 2 + 2] oxidative coupling-annulation of terminal alkenes and alkynes using copper(II) as the oxidant has been developed through direct C-C bond formation. These reactions provide effective access to multiaryl-substituted benzenes with high regioselectivity in the absence of any ligands. The features of this protocol are broad substrate scope, and high atom and step economy. The aggregation-induced emission properties of selected products were further investigated. These synthesized multiaryl-substituted benzenes may be worth exploring for further applications in the fields of advanced functional materials or drugs.
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Affiliation(s)
- Yihan Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Beining Yang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Bo Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yinyin Li
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Zhiying Zhang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yatang Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Zhiyong Tan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
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3
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Long L, Wang W, Zhu Y, Luo W, Zhang Y, Chen J, Wei Y, Chen Z. Benzannulation with Et 3N as 1,3-Diene Variants. Org Lett 2023; 25:7775-7779. [PMID: 37874959 DOI: 10.1021/acs.orglett.3c02620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
With triethylamine as a 1,3-diene variant, a simple and practical process for the synthesis of phthalimides has been developed from readily available maleimide. The transformation can be performed in the absence of a metal catalyst with high levels of functional group tolerance. Various phthalimide compounds were constructed in moderate to good yields under mild conditions. Mechanism research indicates that oxygen and acid also play crucial roles in this reaction.
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Affiliation(s)
- Lipeng Long
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China
| | - Wenjia Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China
| | - Yuping Zhu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China
| | - Wenjun Luo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China
| | - Yi Zhang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China
| | - Juxiu Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China
| | - Yuting Wei
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China
| | - Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China
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4
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Liu Y, Han C, Shi H, Mackenroth AV, Zhang L, Rudolph M, Rominger F, Hashmi ASK. Gold-Catalyzed Regio- and Stereoselective α-Acyloxy-β-Alkynylation of Ynol Ethers. J Org Chem 2023. [PMID: 36799936 DOI: 10.1021/acs.joc.2c02597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Enol esters and conjugated enynes are valuable structural motifs for synthetic chemistry and material sciences. Herein, the synthesis of tetra-substituted enol ester 2-iodobenzoate derivatives was achieved in good yields at room temperature through a gold-catalyzed acyloxyalkynylation of sensitive ynol ethers with ethynylbenziodoxolones (EBXs), the latter acting as bifunctional reactants. The conversion is highly regioselective with a broad substrate scope. Mechanistically, an Au(III) species is the key intermediate of an Au(I)/Au(III) redox cycle. The reaction is synthetically useful and can easily be scaled up to gram scale.
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Affiliation(s)
- Yaowen Liu
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Chunyu Han
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hongwei Shi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Alexandra V Mackenroth
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Linghua Zhang
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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5
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Liu Y, Dietl MC, Han C, Rudolph M, Rominger F, Krämer P, Hashmi ASK. Synthesis of Amide Enol 2-Iodobenzoates by the Regio- and Stereoselective Gold-Catalyzed Acyloxyalkynylation of Ynamides with Hypervalent Iodine Reagents. Org Lett 2022; 24:7101-7106. [PMID: 36137218 DOI: 10.1021/acs.orglett.2c02161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multisubstituted alkenes are accessible by a gold-catalyzed acyloxyalkynylation of ynamides with ethynylbenziodoxolones (EBXs) with perfect atom-economy. The EBX reagents transfer both the carboxylate as well as the alkynyl entity. Overall, this cascade comprises the in situ generation of an alkynyl gold(III) species, a stereoselective C(sp)-C(sp2) bond formation, and a C-O coupling at the alkynyl position of the ynamides. This reaction proceeds under mild conditions and accepts a wide range of substrates. A number of tetrasubstituted amide enol 2-iodobenzoates bearing different functional groups were obtained in good to excellent yields. DFT calculations explain the observed regioselectivity. The synthetic potential of the reaction was further demonstrated by a number of selected follow-up transformations.
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Affiliation(s)
- Yaowen Liu
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Martin C Dietl
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Chunyu Han
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Petra Krämer
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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6
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Rigo D, Masters AF, Maschmeyer T, Selva M, Fiorani G. Isopropenyl Esters (iPEs) in Green Organic Synthesis. Chemistry 2022; 28:e202200431. [DOI: 10.1002/chem.202200431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Davide Rigo
- Department of Molecular Sciences and Nanosystems Ca' Foscari University of Venice Via Torino 155 30172 Venezia (VE) Italy
| | - Anthony F. Masters
- Laboratory of Advanced Catalysis for Sustainability School of Chemistry University of Sydney Sydney NSW 2006 Australia
| | - Thomas Maschmeyer
- Laboratory of Advanced Catalysis for Sustainability School of Chemistry University of Sydney Sydney NSW 2006 Australia
| | - Maurizio Selva
- Department of Molecular Sciences and Nanosystems Ca' Foscari University of Venice Via Torino 155 30172 Venezia (VE) Italy
| | - Giulia Fiorani
- Department of Molecular Sciences and Nanosystems Ca' Foscari University of Venice Via Torino 155 30172 Venezia (VE) Italy
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7
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Hore S, Singh A, De S, Singh N, Gandon V, Singh RP. Polyarylquinone Synthesis by Relayed Dehydrogenative [2 + 2 + 2] Cycloaddition. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00175] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Soumyadip Hore
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Abhijeet Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shreemoyee De
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Neetu Singh
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS UMR 8182, Université Paris Saclay, Orsay Cedex 91405, France
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, Palaiseau Cedex 91128, France
| | - Ravi P. Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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8
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Amatore M, Parrain J, Commeiras L. Alkyne Surrogates in Cycloaddition Reactions for the Preparation of Molecules of Interest. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muriel Amatore
- Aix Marseille Univ CNRS Centrale Marseille iSm2 Marseille France
| | - Jean‐Luc Parrain
- Aix Marseille Univ CNRS Centrale Marseille iSm2 Marseille France
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9
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Yin L, Xu M, Wang Y, Xie H, Yuan Y, Wang C, Jiang YY, Li Y. Regioselective Synthesis of Tetrasubstituted Benzenes via Co-Catalyzed Cycloaddition of Alkynyl Ketones and 2-Acetylpyridines. J Org Chem 2021; 86:12158-12167. [PMID: 34376046 DOI: 10.1021/acs.joc.1c01496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Co(II)-catalyzed cycloaddition reaction of alkynyl ketones and 2-acetylpyridines using 2,2'-bipyridine as the ligand has been developed. These reactions have been realized through Co-catalyzed reductive coupling of two molecules of 2-acetylpyridine followed by regioselective insertion of the alkynone. It is the first example of regioselective cyclotrimerization of one molecule of alkyne and two molecules of monoketone to polysubstituted benzene derivatives in good to excellent yields. A mechanism involving the formation of a cobaltacyclopentane via homocoupling of 2-acetylpyridines is proposed, and it is supported by the DFT calculations.
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Affiliation(s)
- Liqiang Yin
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Murong Xu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Ye Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Huihui Xie
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yang Yuan
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Chengyu Wang
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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10
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Ahmad SAZ, Jena TK, Khan FA. Alkyl Enol Ethers: Development in Intermolecular Organic Transformation. Chem Asian J 2021; 16:1685-1702. [PMID: 33979009 DOI: 10.1002/asia.202100277] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/27/2021] [Indexed: 01/03/2023]
Abstract
Alkyl enol ethers (AEE) are versatile synthetic intermediates with a unique reactivity pattern. This review article summarizes the synthesis of AEE as well as its reactivity and how enol ether undergoes intermolecular reactions for various bond formation, leading to the construction of several useful organic molecules. The synthetic applications of alkyl enol ethers towards intermolecular bond-forming reactions include metal-catalyzed reactions, cycloaddition and heterocycle formation as well as rwactions in the field of natural products synthesis. The achievement of these impressive transformations prove the countless synthetic potential of AEE. The main objective of this review is to bring attentiveness among synthetic chemists to show how AEE extensively can be used to react with both electrophiles as well as nucleophiles, thereby behaving as an ambiphilic reactant. We trust that the unique reactivity pattern of alkyl enol ethers and the fundamental mechanistic idea can attract chemists in AEE chemistry. Exclusively, intermolecular reactions of AEE with other functionalized moieties have not been reviewed to the best of our knowledge.
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Affiliation(s)
- Sarwat Asma Ziya Ahmad
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
| | - Tapan Kumar Jena
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
| | - Faiz Ahmed Khan
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
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11
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Han P, Mao ZY, Li M, Si CM, Wei BG, Lin GQ. Synthesis of Amide Enol Carbamates and Carbonates through Cu(OTf)2-Catalyzed Reactions of Ynamides with t-Butyl Carbamates/Carbonates. J Org Chem 2020; 85:4740-4752. [PMID: 32162916 DOI: 10.1021/acs.joc.9b03512] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Pan Han
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
- College of Chemistry and Chemical Engineering, China West Normal University, 1 Shida Road, Nanchong 637002, China
| | - Zhuo-Ya Mao
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Ming Li
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Guo-Qiang Lin
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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12
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Manick AD, Salgues B, Parrain JL, Zaborova E, Fages F, Amatore M, Commeiras L. Access to Fluorenones Using Benzocyclopentynone Surrogate as Partner for the [2 + 2 + 2] Cycloaddition Reaction. Org Lett 2020; 22:1894-1898. [PMID: 32073278 DOI: 10.1021/acs.orglett.0c00235] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A convenient and versatile procedure for the straightforward synthesis of substituted fluorenones as valuable scaffolds is described under rhodium catalysis. The present [2 + 2 + 2] cycloaddition reaction of diynes with 3-acetoxy or-3-alkoxyindenones as surrogates of the highly reactive benzocyclopentynone 2π partner allows the preparation of various fluorenone-type derivatives in good yields and provides an additional and tunable process for the generation of more challenging molecules with application in pharmaceutical, polymer, and material sciences.
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Affiliation(s)
| | - Bruno Salgues
- Aix Marseille Univ, CNRS, CINaM, UMR 7325, Marseille 13284, France
| | - Jean-Luc Parrain
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
| | - Elena Zaborova
- Aix Marseille Univ, CNRS, CINaM, UMR 7325, Marseille 13284, France
| | - Frédéric Fages
- Aix Marseille Univ, CNRS, CINaM, UMR 7325, Marseille 13284, France
| | - Muriel Amatore
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
| | - Laurent Commeiras
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
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13
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Abstract
As readily accessible strained carbocycles, cyclopropenes show a diverse range of reactivities, and a lot of novel and useful transformations have been developed.
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Affiliation(s)
- Penghua Li
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Xiaoyu Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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14
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Xia Y, Huang H, Zhang F, Deng GJ. Palladium-Catalyzed Aerobic Benzannulation of Amines, Benzaldehydes, and β-Dicarbonyls. Org Lett 2019; 21:7489-7492. [PMID: 31512468 DOI: 10.1021/acs.orglett.9b02786] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A palladium-catalyzed aerobic multicomponent benzannulation of Hantzsch reactants, i.e., amines, aldehydes, and β-dicarbonyls, has been developed. Hence, a viable entry to highly functionalized anilines has been accessed under solvent-free neat conditions. Mechanistically, the palladium chelating with an imine intermediate was proposed to be the key for this novel carbocyclization.
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Affiliation(s)
- Yujia Xia
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education , College of Chemistry, Xiangtan University , Xiangtan 411105 , China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education , College of Chemistry, Xiangtan University , Xiangtan 411105 , China
| | - Feng Zhang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education , College of Chemistry, Xiangtan University , Xiangtan 411105 , China.,College of Science , Hunan Agricultural University , Changsha 410128 , China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education , College of Chemistry, Xiangtan University , Xiangtan 411105 , China
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15
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Torres Ò, Fernàndez M, Díaz-Jiménez À, Pla-Quintana A, Roglans A, Solà M. Examining the Factors That Govern the Regioselectivity in Rhodium-Catalyzed Alkyne Cyclotrimerization. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00347] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Òscar Torres
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Catalonia, Spain
| | - Martí Fernàndez
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Catalonia, Spain
| | - Àlex Díaz-Jiménez
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Catalonia, Spain
| | - Anna Pla-Quintana
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Catalonia, Spain
| | - Anna Roglans
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Catalonia, Spain
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Catalonia, Spain
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16
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Yang S, Lu D, Huo H, Luo F, Gong Y. Construction of Substituted 2-Aminophenols via Formal [3 + 3] Cycloaddition of Alkyl 2-Aroyl-1-chlorocyclopropanecarboxylate with in Situ Generated Enamines. Org Lett 2018; 20:6943-6947. [DOI: 10.1021/acs.orglett.8b03090] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sen Yang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Dengfu Lu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Hengrui Huo
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Fan Luo
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
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17
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Yang J, Zhao B, Xi Y, Sun S, Yang Z, Ye Y, Jiang K, Wei Y. Construction of Benzene Rings by Copper-Catalyzed Cycloaddition Reactions of Oximes and Maleimides: An Access to Fused Phthalimides. Org Lett 2018; 20:1216-1219. [PMID: 29411987 DOI: 10.1021/acs.orglett.8b00141] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A useful Cu-catalyzed cycloaddition protocol for the construction of benzene rings has been achieved. The reactions, utilizing readily available oximes and maleimides as starting materials, proceed under mild reaction conditions to generate a series of structurally interesting fused-phthalimides that are difficult to be prepared by conventional methods.
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Affiliation(s)
- Jie Yang
- College of Pharmacy, Third Military Medical University , Chongqing, 400038, China
| | - Bo Zhao
- College of Pharmacy, Third Military Medical University , Chongqing, 400038, China
| | - Yue Xi
- College of Pharmacy, Third Military Medical University , Chongqing, 400038, China
| | - Si Sun
- College of Pharmacy, Third Military Medical University , Chongqing, 400038, China
| | - Zhen Yang
- College of Pharmacy, Third Military Medical University , Chongqing, 400038, China
| | - Ying Ye
- College of Pharmacy, Third Military Medical University , Chongqing, 400038, China
| | - Kun Jiang
- College of Pharmacy, Third Military Medical University , Chongqing, 400038, China
| | - Ye Wei
- College of Pharmacy, Third Military Medical University , Chongqing, 400038, China
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18
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Kikui N, Hinoue T, Usuki Y, Satoh T. Synthesis of Enol Esters through Silver-catalyzed or -mediated Hydroacyloxylation of Internal Alkynes. CHEM LETT 2018. [DOI: 10.1246/cl.170986] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nanae Kikui
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Tomoaki Hinoue
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Yoshinosuke Usuki
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Tetsuya Satoh
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
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19
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Zhang C, Chen L, Chen K, Wang C, Xu Z, Jiang H, Zhu S. Cu(i)-Catalyzed stereoselective synthesis of trisubstituted Z-enol esters via interrupting the 1,3-O-transposition reaction. Org Chem Front 2018. [DOI: 10.1039/c8qo00664d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient Cu(i)-catalyzed stereoselective synthesis of trisubstituted Z-enol esters via interrupting the 1,3-O-transposition process is reported, which provided a convenient approach to highly functionalized Z-enol esters.
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Affiliation(s)
- Changyuan Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Kai Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Chuntao Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Zurong Xu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
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20
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Maity B, Koley D. Solvent-Promoted Regio- and Stereoselectivity in Ru-Catalyzed Hydrocarboxylation of Terminal Alkynes: A DFT Study. ChemCatChem 2017. [DOI: 10.1002/cctc.201701345] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Bholanath Maity
- Department of Chemical Sciences; Indian Institute of Science Education of Research (IISER); Kolkata Mohanpur 741 246 India
| | - Debasis Koley
- Department of Chemical Sciences; Indian Institute of Science Education of Research (IISER); Kolkata Mohanpur 741 246 India
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21
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Jena RK, Rajesh Y, Mandal M, Bhattacharjee M. [( para-Cymene)Ru(dppp)Cl][PF 6]-Catalysed Stereospecific Synthesis of O-Dienyl Esters, and Evaluation of the Anticancer Activity of a Long-Chain Fatty Acid O-Dienyl Ester. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rajesh K. Jena
- Department of Chemistry; Indian Institute of Technology; 721302 Kharagpur India
| | - Y. Rajesh
- School of Medical Science & Technology; Indian Institute of Technology; 721302 Kharagpur India
| | - Mahitosh Mandal
- School of Medical Science & Technology; Indian Institute of Technology; 721302 Kharagpur India
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22
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Babazadeh M, Soleimani-Amiri S, Vessally E, Hosseinian A, Edjlali L. Transition metal-catalyzed [2 + 2 + 2] cycloaddition of nitrogen-linked 1,6-diynes: a straightforward route to fused pyrrolidine systems. RSC Adv 2017. [DOI: 10.1039/c7ra05398c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Transition metal-catalyzed [2 + 2 + 2] cycloadditions of nitrogen-linked 1,6-diynes with unsaturated motifs have recently attracted more attention from synthetic organic chemists because of their high efficiency in the construction of numerous pyrrolidine based systems.
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Affiliation(s)
| | | | | | - Akram Hosseinian
- Department of Engineering Science
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | - Ladan Edjlali
- Department of Chemistry
- Tabriz Branch
- Islamic Azad University
- Tabriz
- Iran
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23
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Jena RK, Das UK, Ghorai A, Bhattacharjee M. Ruthenium-Catalyzed Addition of Carboxylic Acids to Propargylic Alcohols: An Easy Route toO-Dienyl Esters and Their Tandem Atom-Transfer Radical Polymerization. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601091] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Rajesh K. Jena
- Department of Chemistry; Indian Institute of Technology; Kharagpur 721302 India
| | - Uttam K. Das
- Department of Chemistry; Indian Institute of Technology; Kharagpur 721302 India
| | - Arijit Ghorai
- Department of Chemistry; Indian Institute of Technology; Kharagpur 721302 India
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24
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Kashima K, Teraoka K, Uekusa H, Shibata Y, Tanaka K. Rhodium-Catalyzed Atroposelective [2 + 2 + 2] Cycloaddition of Ortho-Substituted Phenyl Diynes with Nitriles: Effect of Ortho Substituents on Regio- and Enantioselectivity. Org Lett 2016; 18:2170-3. [DOI: 10.1021/acs.orglett.6b00791] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kenichi Kashima
- Department
of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | | | | | | | - Ken Tanaka
- Department
of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
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25
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Domínguez G, Pérez-Castells J. Alkenes in [2+2+2] Cycloadditions. Chemistry 2016; 22:6720-39. [DOI: 10.1002/chem.201504987] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Gema Domínguez
- Chemistry and Biochemistry department; Universidad San Pablo CEU; Urb. Montepríncipe. Boadilla del Monte. E28668 Madrid Spain
| | - Javier Pérez-Castells
- Chemistry and Biochemistry department; Universidad San Pablo CEU; Urb. Montepríncipe. Boadilla del Monte. E28668 Madrid Spain
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26
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Jeschke J, Engelhardt TB, Lang H. Ruthenium-Catalyzed Hydrocarboxylation of Internal Alkynes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501583] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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27
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Jeschke J, Gäbler C, Lang H. Regioselective Formation of Enol Esters from the Ruthenium-Catalyzed Markovnikov Addition of Carboxylic Acids to Alkynes. J Org Chem 2016; 81:476-84. [DOI: 10.1021/acs.joc.5b02293] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Janine Jeschke
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, 09107 Chemnitz, Germany
| | - Christian Gäbler
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, 09107 Chemnitz, Germany
| | - Heinrich Lang
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, 09107 Chemnitz, Germany
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28
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Miyazaki Y, Suzuki S, Kobayashi T, Yaita T, Inaba Y, Takeshita K, Mori A. Synthetic Design of TPEN Derivatives for Selective Extraction of Trivalent Minor Actinides against Lanthanides. CHEM LETT 2015. [DOI: 10.1246/cl.150861] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuji Miyazaki
- Quantum Beam Science Directorate, Japan Atomic Energy Agency
| | - Shinichi Suzuki
- Quantum Beam Science Directorate, Japan Atomic Energy Agency
| | - Toru Kobayashi
- Quantum Beam Science Directorate, Japan Atomic Energy Agency
| | - Tsuyoshi Yaita
- Quantum Beam Science Directorate, Japan Atomic Energy Agency
| | - Yusuke Inaba
- Research Laboratory of Nuclear Reactor, Tokyo Institute of Technology
| | - Kenji Takeshita
- Research Laboratory of Nuclear Reactor, Tokyo Institute of Technology
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University
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29
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Aida Y, Tooriyama S, Kimura Y, Hara H, Shibata Y, Tanaka K. Rhodium-Catalyzed [2+2+2] Cycloaddition-Aromatization of 1,6-Diynes with Cyclic Enol Ethers at Room Temperature. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501282] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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30
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Fujita T, Watabe Y, Ichitsuka T, Ichikawa J. Ni-Catalyzed Synthesis of Fluoroarenes via [2+2+2] Cycloaddition Involving α-Fluorine Elimination. Chemistry 2015; 21:13225-8. [DOI: 10.1002/chem.201502744] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Indexed: 11/11/2022]
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31
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Satoh Y, Obora Y. Niobium Complexes in Organic Transformations: From Stoichiometric Reactions to Catalytic [2+2+2] Cycloaddition Reactions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500358] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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32
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Matsuda T, Suzuki K. Rhodium(III)-Catalyzed [2+2+2] Cyclotrimerization of Diynes with Maleic Anhydrides as Alkyne Equivalents. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500252] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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33
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Kashima K, Ishii M, Tanaka K. Synthesis of Pyridylphosphonates by Rhodium-Catalyzed [2+2+2] Cycloaddition of 1,6- and 1,7-Diynes with Diethyl Phosphorocyanidate. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403452] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Hashimoto T, Okabe A, Mizuno T, Izawa M, Takeuchi R. Iridium-catalyzed [2+2+2] cycloaddition of α,ω-diynes with alkynyl ketones and alkynyl esters. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.09.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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35
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Kinoshita H, Tohjima T, Miura K. Hydroalumination-Triggered Cyclization of Silylated 1,3-Dien-5-ynes to Polysubstituted Benzenes. Org Lett 2014; 16:4762-5. [DOI: 10.1021/ol5022096] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hidenori Kinoshita
- Department
of Applied Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Takayuki Tohjima
- Department
of Applied Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Katsukiyo Miura
- Department
of Applied Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
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36
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Hara J, Ishida M, Kobayashi M, Noguchi K, Tanaka K. Highly Chemo-, Regio-, and Enantioselective Rhodium-Catalyzed Cross-Cyclotrimerization of Two Different Alkynes with Alkenes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310336] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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37
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Highly Chemo-, Regio-, and Enantioselective Rhodium-Catalyzed Cross-Cyclotrimerization of Two Different Alkynes with Alkenes. Angew Chem Int Ed Engl 2014; 53:2956-9. [DOI: 10.1002/anie.201310336] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Indexed: 11/07/2022]
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38
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Kinoshita H, Takahashi H, Miura K. Regioselective Synthesis of Multisubstituted Benzenes by Palladium-Catalyzed Intermolecular Reaction of β-Iodo-β-silylstyrenes with Alkynes. Org Lett 2013; 15:2962-5. [DOI: 10.1021/ol4010883] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hidenori Kinoshita
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Hirotoshi Takahashi
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Katsukiyo Miura
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
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39
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Perekalin DS, Karslyan EE, Trifonova EA, Konovalov AI, Loskutova NL, Nelyubina YV, Kudinov AR. Synthesis of Ruthenium Half-Sandwich Complexes by Naphthalene Replacement in [CpRu(C10H8)]+. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201112] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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40
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Kobayashi M, Tanaka K. Rhodium-Catalyzed Linear Cross-Trimerization of Two Different Alkynes with an Alkene and Two Different Alkenes with an Alkyne. Chemistry 2012; 18:9225-9. [DOI: 10.1002/chem.201200903] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Indexed: 11/09/2022]
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41
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Mori A, Miyazaki Y, Tanaka F, Takeshita K. Synthetic Approach to N,N,N',N'-Tetrakis[(2-pyridylmethyl)ethylenediamine] (TPEN) Derivatives through Ruthenium-Catalyzed-[2+2+2]cycloaddition. HETEROCYCLES 2012. [DOI: 10.3987/com-11-s(p)16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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42
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Kinoshita H, Ishikawa T, Miura K. Dialkylaluminum Hydride-Promoted Cyclodimerization of Silylated 1,3-Enynes via Skeletal Rearrangement. Org Lett 2011; 13:6192-5. [DOI: 10.1021/ol202601s] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hidenori Kinoshita
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitma University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Tomoyuki Ishikawa
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitma University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
| | - Katsukiyo Miura
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitma University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
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43
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Zhang K, Louie J. Rhodium-Catalyzed Decarboxylative Cycloaddition Route to Substituted Anilines. J Org Chem 2011; 76:4686-91. [DOI: 10.1021/jo200236h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kainan Zhang
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
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44
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Metal-Free Cyclotrimerization for the De Novo Synthesis of Pyridines. Angew Chem Int Ed Engl 2011; 50:2434-5. [DOI: 10.1002/anie.201007647] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Indexed: 11/07/2022]
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45
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Kral K, Hapke M. Metall-freie Cyclotrimerisierung zur De-novo-Synthese von Pyridinen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007647] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Kobayashi M, Suda T, Noguchi K, Tanaka K. Enantioselective construction of bridged multicyclic skeletons: intermolecular [2+2+2] cycloaddition/intramolecular Diels-Alder reaction cascade. Angew Chem Int Ed Engl 2011; 50:1664-7. [PMID: 21308928 DOI: 10.1002/anie.201004150] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Revised: 11/22/2010] [Indexed: 02/05/2023]
Affiliation(s)
- Masayuki Kobayashi
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
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47
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Čížková M, Kolivoška V, Císařová I, Šaman D, Pospíšil L, Teplý F. Nitrogen heteroaromatic cations by [2+2+2] cycloaddition. Org Biomol Chem 2011; 9:450-62. [PMID: 21049101 DOI: 10.1039/c0ob00507j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A modular approach to the construction of monocationic quaternary N-heteroaromatic frameworks was developed capitalizing on a direct pyridine-type nitrogen quaternization followed by metal-catalyzed [2+2+2] cycloaddition with gaseous acetylene. The flexibility of the route is demonstrated on 12 diverse scaffolds based on pyridinium, quinolinium, thiazolium, benzothiazolium, imidazolium, and pyrimidinium. Electrochemical study revealed a quinolinium redox system with two electrochemically distinct forms that are interconverted by a homogeneous chemical reaction triggered by fast electron transfers (reduction at -0.7 V and oxidation at -0.05 V).
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Affiliation(s)
- Martina Čížková
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v. v. i., Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
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48
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Kobayashi M, Suda T, Noguchi K, Tanaka K. Enantioselective Construction of Bridged Multicyclic Skeletons: Intermolecular [2+2+2] Cycloaddition/Intramolecular Diels-Alder Reaction Cascade. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201004150] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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49
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Domínguez G, Pérez-Castells J. Recent advances in [2+2+2] cycloaddition reactions. Chem Soc Rev 2011; 40:3430-44. [DOI: 10.1039/c1cs15029d] [Citation(s) in RCA: 467] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Lebœuf D, Iannazzo L, Geny A, Malacria M, Vollhardt K, Aubert C, Gandon V. Cobalt-Mediated Linear 2:1 Co-oligomerization of Alkynes with Enol Ethers to Give 1-Alkoxy-1,3,5-Trienes: A Missing Mode of Reactivity. Chemistry 2010; 16:8904-13. [DOI: 10.1002/chem.201000486] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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