1
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Unsupported Copper Nanoparticles in the Arylation of Amines. Catalysts 2023. [DOI: 10.3390/catal13020331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Commercially available copper and copper (II) oxide nanoparticles (CuNPs and CuO NPs) were characterized using TEM and electronography methods to elucidate their true average size and composition. The catalytic amine arylation using unsupported copper nanoparticles differing in their size and copper oxidation state was investigated. The reaction of the model iodobenzene with n-octylamine was shown to be successfully catalyzed by CuNPs of average size 25 and 10/80 nm in the presence of the ligands such as 2-isobutyrylcyclohexanone (L1) and rac-1,1′-bi-2-naphthol (BINOL, L2), giving high yields (up to 95%) of the target N-octylaniline. CuO in bulk and nano forms was shown to be almost equally efficient in this process. Studies on the Cu-catalyzed amination of substituted iodobenzenes and 2-iodopyridine, as well as the arylation of different aliphatic amines and NH-heterocycles, verified that CuNPs (25 or 10/80 nm) with L1 and L2 are the most versatile and efficient nanocatalysts for a variety of substrates. Investigation of copper leaching under different conditions was carried out.
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2
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Oeser P, Koudelka J, Petrenko A, Tobrman T. Recent Progress Concerning the N-Arylation of Indoles. Molecules 2021; 26:molecules26165079. [PMID: 34443667 PMCID: PMC8402097 DOI: 10.3390/molecules26165079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022] Open
Abstract
This review summarizes the current state-of-the-art procedures in terms of the preparation of N-arylindoles. After a short introduction, the transition-metal-free procedures available for the N-arylation of indoles are briefly discussed. Then, the nickel-catalyzed and palladium-catalyzed N-arylation of indoles are both discussed. In the next section, copper-catalyzed procedures for the N-arylation of indoles are described. The final section focuses on recent findings in the field of biologically active N-arylindoles.
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Reen GK, Kumar A, Sharma P. Recent advances on the transition-metal-catalyzed synthesis of imidazopyridines: an updated coverage. Beilstein J Org Chem 2019; 15:1612-1704. [PMID: 31435443 PMCID: PMC6664406 DOI: 10.3762/bjoc.15.165] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/28/2019] [Indexed: 12/21/2022] Open
Abstract
A comprehensive account of recent advances in the synthesis of imidazopyridines, assisted through transition-metal-catalyzed multicomponent reactions, C-H activation/functionalization and coupling reactions are highlighted in this review article. The basic illustration of this review comprises of schemes with concise account of explanatory text. The schemes depict the reaction conditions along with a quick look into the mechanism involved to render a deep understanding of the catalytic role. At some instances optimizations of certain features have been illustrated through tables, i.e., selectivity of catalyst, loading of the catalyst and percentage yield with different substrates. Each of the reported examples has been rigorously analyzed for reacting substrates, reaction conditions and transition metals used as the catalyst. This review will be helpful to the chemists in understanding the challenges associated with the reported methods as well as the future possibilities, both in the choice of substrates and catalysts. This review would be quite appealing to a wider range of organic chemists in academia and industrial R&D sectors working in the field of heterocyclic syntheses. In a nutshell, this review will be a guiding torch to envisage: (i) the role of various transition metals in the domain dedicated towards method development and (ii) for the modifications needed thereof in the R&D sector.
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Affiliation(s)
| | - Ashok Kumar
- School of Chemical Sciences, Devi Ahilya University, Indore, (M. P.), India
| | - Pratibha Sharma
- School of Chemical Sciences, Devi Ahilya University, Indore, (M. P.), India
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4
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Li B, Wendlandt AE, Stahl SS. Replacement of Stoichiometric DDQ with a Low Potential o-Quinone Catalyst Enabling Aerobic Dehydrogenation of Tertiary Indolines in Pharmaceutical Intermediates. Org Lett 2019; 21:1176-1181. [PMID: 30702297 DOI: 10.1021/acs.orglett.9b00111] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A transition-metal/quinone complex, [Ru(phd)3]2+ (phd = 1,10-phenanthroline-5,6-dione), is shown to be effective for aerobic dehydrogenation of 3° indolines to the corresponding indoles. The results show how low potential quinones may be tailored to provide a catalytic alternative to stoichiometric DDQ, due to their ability to mediate efficient substrate dehydrogenation while also being compatible with facile reoxidation by O2. The utility of the method is demonstrated in the synthesis of key intermediates to pharmaceutically important molecules.
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Affiliation(s)
- Bao Li
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Alison E Wendlandt
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Shannon S Stahl
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
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5
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Hemmati S, Naderi A, Ghadermazi M, Veisi H. SiO 2 -functionalized melamine-pyridine group–supported Cu(OAc) 2 as an efficient heterogeneous and recyclable nanocatalyst for the N -arylation of amines through Ullmann coupling reactions. CR CHIM 2018. [DOI: 10.1016/j.crci.2018.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Ojha NK, Zyryanov GV, Majee A, Charushin VN, Chupakhin ON, Santra S. Copper nanoparticles as inexpensive and efficient catalyst: A valuable contribution in organic synthesis. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.10.004] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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7
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Veisi H, Hamelian M, Hemmati S, Dalvand A. CuI catalyst heterogenized on melamine-pyridines immobilized SBA-15: Heterogeneous and recyclable nanocatalyst for Ullmann-type C N coupling reactions. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Soni V, Khake SM, Punji B. Nickel-Catalyzed C(sp2)–H/C(sp3)–H Oxidative Coupling of Indoles with Toluene Derivatives. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01044] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Vineeta Soni
- Organometallic Synthesis
and Catalysis Group, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Shrikant M. Khake
- Organometallic Synthesis
and Catalysis Group, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Benudhar Punji
- Organometallic Synthesis
and Catalysis Group, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
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9
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Veisi H, Ghadermazi M, Naderi A, Hemmati S. WITHDRAWN: SiO2 functionalized melamine-pyridine groups-supported Cu(OAc)2 as an efficient heterogeneous and recyclable nanocatalyst for N-arylation of amines through Ullmann coupling reactions. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.05.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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WITHDRAWN: CuI catalyst heterogenized on melamine-pyridines immobilized SBA-15: Heterogeneous and recyclable nanocatalyst for Ullmann-type C-N coupling reactions. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Harsha Vardhan Reddy K, Kumar RU, Reddy VP, Satish G, Nanubolu JB, Nageswar YVD. Ru-Catalyzed highly site-selective C–H bond arylation of 9-(pyrimidin-2-yl)-9H-carbazole. RSC Adv 2016. [DOI: 10.1039/c6ra09825h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
We describe an efficient ruthenium-catalyzed C–H bond ortho-arylation of 9-(pyrimidin-2-yl)-9H-carbazole using boronic acids. This methodology exhibits excellent and high site-selectivity, functional group tolerance and gave the desired product in moderate to good yields.
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Affiliation(s)
| | - R. Uday Kumar
- MCP Division
- Indian Institute of Chemical Technology
- Hyderabad 500607
- India
| | - V. Prakash Reddy
- MCP Division
- Indian Institute of Chemical Technology
- Hyderabad 500607
- India
| | - G. Satish
- MCP Division
- Indian Institute of Chemical Technology
- Hyderabad 500607
- India
| | | | - Y. V. D. Nageswar
- MCP Division
- Indian Institute of Chemical Technology
- Hyderabad 500607
- India
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12
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Titova YA, Fedorova OV, Rusinov GL, Charushin VN. Metal and silicon oxides as efficient catalysts for the preparative organic chemistry. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4450] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Long W, Qiu W, Guo C, Li C, Song L, Bai G, Zhang G, He H. A Copper-Based Metal-Organic Framework as an Efficient and Reusable Heterogeneous Catalyst for Ullmann and Goldberg Type C-N Coupling Reactions. Molecules 2015; 20:21178-92. [PMID: 26633320 PMCID: PMC6332410 DOI: 10.3390/molecules201219756] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 11/13/2015] [Accepted: 11/17/2015] [Indexed: 01/13/2023] Open
Abstract
A highly porous metal-organic framework (Cu-TDPAT), constructed from a paddle-wheel type dinuclear copper cluster and 2,4,6-tris(3,5-dicarboxylphenylamino)-1,3,5-triazine (H₆TDPAT), has been tested in Ullmann and Goldberg type C-N coupling reactions of a wide range of primary and secondary amines with halobenzenes, affording the corresponding N-arylation compounds in moderate to excellent yields. The Cu-TDPAT catalyst could be easily separated from the reaction mixtures by simple filtration, and could be reused at least five times without any significant degradation in catalytic activity.
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Affiliation(s)
- Wei Long
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Wenge Qiu
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Chongwei Guo
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Chuanqiang Li
- Department of Applied Chemistry, College of Science, Chongqing Jiaotong University, Chongqing 400074, China.
| | - Liyun Song
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Guangmei Bai
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Guizhen Zhang
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Hong He
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
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14
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Li LC, Zhang L, Wang W, Pan R, Mao S, Tian AM. Investigation on the Mechanism for C-N Coupling of 3-Iodopyridine and Pyrazole Catalyzed by Cu(I). INT J CHEM KINET 2015. [DOI: 10.1002/kin.20966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Lai-Cai Li
- College of Chemistry and Material Science; Sichuan Normal University; Chengdu 610066 People's Republic of China
| | - Lin Zhang
- College of Chemistry and Material Science; Sichuan Normal University; Chengdu 610066 People's Republic of China
| | - Wei Wang
- College of Chemistry and Material Science; Sichuan Normal University; Chengdu 610066 People's Republic of China
| | - Rui Pan
- College of Chemistry and Material Science; Sichuan Normal University; Chengdu 610066 People's Republic of China
| | - Shuang Mao
- College of Chemistry and Material Science; Sichuan Normal University; Chengdu 610066 People's Republic of China
| | - An-Min Tian
- College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
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15
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Direct C–H arylation of benzothiazoles by magnetically separable nano copper ferrite, a recyclable catalyst. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.07.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Anil Kumar B, Harsha Vardhan Reddy K, Karnakar K, Satish G, Nageswar Y. Copper on chitosan: an efficient and easily recoverable heterogeneous catalyst for one pot synthesis of 1,2,3-triazoles from aryl boronic acids in water at room temperature. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.02.107] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Yang B, Mao Z, Zhu X, Wan Y. Functionalised Chitosan as a Green, Recyclable, Supported Catalyst for the Copper-Catalysed Ullmann C-N Coupling Reaction in Water. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2014.11.014] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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18
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Amadine O, Maati H, Abdelouhadi K, Fihri A, El Kazzouli S, Len C, El Bouari A, Solhy A. Ceria-supported copper nanoparticles: A highly efficient and recyclable catalyst for N-arylation of indole. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.08.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Satish G, Reddy KHV, Anil B, Shankar J, Uday Kumar R, Nageswar Y. Direct C–H amination of benzothiazoles by magnetically recyclable CuFe2O4 nanoparticles under ligand-free conditions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.100] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Satish G, Reddy KHV, Ramesh K, Shankar J, Nageswar YVD. An environmentally benign and efficient synthesis of 2-thio-substituted benzothiazoles. ACTA ACUST UNITED AC 2014. [DOI: 10.5155/eurjchem.5.2.291-295.861] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Gaddam S, Kasireddy HR, Konkala K, Katla R, Durga NYV. Synthesis of N-substituted-2-aminobenzothiazoles using nano copper oxide as a recyclable catalyst under ligand-free conditions, in reusable PEG-400 medium. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Satish G, Reddy KHV, Ramesh K, Kumar BA, Nageswar Y. An elegant protocol for the synthesis of N-substituted pyrroles through C–N cross coupling/aromatization process using CuFe2O4 nanoparticles as catalyst under ligand-free conditions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.075] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Sambiagio C, Marsden SP, Blacker AJ, McGowan PC. Copper catalysed Ullmann type chemistry: from mechanistic aspects to modern development. Chem Soc Rev 2014; 43:3525-50. [PMID: 24585151 DOI: 10.1039/c3cs60289c] [Citation(s) in RCA: 758] [Impact Index Per Article: 75.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Cu-catalysed arylation reactions devoted to the formation of C-C and C-heteroatom bonds (Ullmann-type couplings) have acquired great importance in the last decade. This review discusses the history and development of coupling reactions between aryl halides and various classes of nucleophiles, focusing mostly on the different mechanisms proposed through the years. Selected mechanistic investigations are treated more in depth than others. For example, evidence in favour or against radical mechanisms is discussed. Cu(I) and Cu(III) complexes involved in the Ullmann reaction and N/O selectivity in aminoalcohol arylation are discussed. A separate section has been dedicated to the synthesis of heterocyclic rings through intramolecular couplings. Finally, recent developments in green chemistry for these reactions, such as reactions in aqueous media and heterogeneous catalysis, have also been reviewed.
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Affiliation(s)
- Carlo Sambiagio
- iPRD, School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2-9JT, UK.
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24
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Harsha Vardhan Reddy K, Anil Kumar BSP, Prakash Reddy V, Uday Kumar R, Nageswar YVD. Ru/C: a simple heterogeneous catalyst for the amination of azoles under ligand free conditions. RSC Adv 2014. [DOI: 10.1039/c4ra05447d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A ligand free Ru/C-catalyzed amination of 2-halo azoles with a broad scope of aminating reagents has been developed. Utilizing this protocol a variety of 2-aminoazole derivatives were synthesized in moderate to good yields. The methodology is operationally simple and it provides potentially useful products by using an inexpensive recyclable catalytic system.
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Affiliation(s)
| | | | - V. Prakash Reddy
- MCP Division
- Indian Institute of Chemical Technology
- Hyderabad 500607, India
| | - R. Uday Kumar
- MCP Division
- Indian Institute of Chemical Technology
- Hyderabad 500607, India
| | - Y. V. D. Nageswar
- MCP Division
- Indian Institute of Chemical Technology
- Hyderabad 500607, India
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25
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Huang L, Yu R, Zhu X, Wan Y. A recyclable Cu-catalyzed C–N coupling reaction in water and its application to synthesis of imidazo[1,2-a]quinoxaline. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Lin H, Sun D. RECENT SYNTHETIC DEVELOPMENTS AND APPLICATIONS OF THE ULLMANN REACTION. A REVIEW. ORG PREP PROCED INT 2013; 45. [PMID: 24223434 DOI: 10.1080/00304948.2013.816208] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hao Lin
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720, USA
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27
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Bhong BY, Shelke AV, Karade NN. Nano copper oxide mediated ligand-free C–S cross-coupling and concomitant oxidative aromatization of 4-aryl-3,4-dihydropyrimidin-2(1H)-thione with diaryliodonium salts. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.10.131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Chen WX, Shao LX. N-Heterocyclic Carbene–Palladium(II)-1-Methylimidazole Complex Catalyzed Amination between Aryl Chlorides and Amides. J Org Chem 2012; 77:9236-9. [DOI: 10.1021/jo301811n] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wen-Xin Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou,
Zhejiang Province 325035, People’s Republic of China
| | - Li-Xiong Shao
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou,
Zhejiang Province 325035, People’s Republic of China
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29
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Magnetically separable CuFe2O4 nano particles catalyzed multicomponent synthesis of 1,4-disubstituted 1,2,3-triazoles in tap water using ‘click chemistry’. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.077] [Citation(s) in RCA: 140] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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30
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Reddy KHV, Satish G, Reddy VP, Kumar BSPA, Nageswar YVD. Recyclable Ru/C catalyzed oxidative cyanation of tertiary amines with TBHP. RSC Adv 2012. [DOI: 10.1039/c2ra21630b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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