1
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Hong P, Zhu X, Lai X, Gong Z, Huang M, Wan Y. Room-Temperature CuI-Catalyzed N-Arylation of Cyclopropylamine. J Org Chem 2024; 89:57-67. [PMID: 38109271 DOI: 10.1021/acs.joc.3c01357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
A general and efficient CuI/N-carbazolyl-1H-pyrrole-2-carbohydrazide catalyst system was developed for the N-arylation of cyclopropylamine using aryl bromides at room temperature. Herein, 5 mol % CuI and 5 mol % of the ligand were used to synthesize N-aryl cyclopropylamines in moderate to excellent yields. This protocol was scaled up to produce the desired product at gram levels and has been generalized for C-N coupling between aryl bromides and amines at room temperature.
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Affiliation(s)
- Peng Hong
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
- Guangdong Engineering Technology Research Center for Platform Chemicals from Marine Biomass and Their Functionalization, Sun Yat-sen University, Zhuhai 519082, P. R. China
| | - Xinhai Zhu
- Guangdong Engineering Technology Research Center for Platform Chemicals from Marine Biomass and Their Functionalization, Sun Yat-sen University, Zhuhai 519082, P. R. China
- Instrument Analysis & Research Center, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Xin Lai
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
- Guangdong Engineering Technology Research Center for Platform Chemicals from Marine Biomass and Their Functionalization, Sun Yat-sen University, Zhuhai 519082, P. R. China
| | - Zinan Gong
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
| | - Manna Huang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
- Guangdong Engineering Technology Research Center for Platform Chemicals from Marine Biomass and Their Functionalization, Sun Yat-sen University, Zhuhai 519082, P. R. China
| | - Yiqian Wan
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
- Guangdong Engineering Technology Research Center for Platform Chemicals from Marine Biomass and Their Functionalization, Sun Yat-sen University, Zhuhai 519082, P. R. China
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2
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Das A, Maji B. Direct C(3)5-H Polyfluoroarylation of 2-Amino/alkoxy Pyridines Enabled by a Transient and Electron-deficient Palladium Intermediate. Chemistry 2023; 29:e202301436. [PMID: 37154162 DOI: 10.1002/chem.202301436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/10/2023]
Abstract
Herein, we present an unprecedented azine-limited C5-H polyfluoroarylation of 2-aminopyridines enabled by a transient and electron-deficient perfluoroaryl-Pd species via C-H/C-H coupling. The protocol further allows C3(5)-H polyfluoroarylation of 2-alkoxypyridines guided by sterics and electronics for the first time. The late-stage C-H functionalization of drugs, drug derivatives, and natural product derivatives and synthesis of C5-aryl drug derivatives further demonstrated the method's utility. The preliminary mechanistic studies reveal that the synergistic combination of the bulky yet electrophilic perfluoroaryl-Pd species and the partial nucleophilicity of the C5-position of 2-amino/alkoxy-pyridines is the origin of reactivity and selectivity. Importantly, the first experimental evidence for the role of diisopropyl sulfide is provided.
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Affiliation(s)
- Animesh Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Biplab Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
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3
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Neetha M, Saranya S, Ann Harry N, Anilkumar G. Recent Advances and Perspectives in the Copper‐Catalysed Amination of Aryl and Heteroaryl Halides. ChemistrySelect 2020. [DOI: 10.1002/slct.201904436] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mohan Neetha
- School of Chemical Sciences Mahatma Gandhi University Priyadarsini Hills P O, Kottayam Kerala India 686560
| | - Salim Saranya
- School of Chemical Sciences Mahatma Gandhi University Priyadarsini Hills P O, Kottayam Kerala India 686560
| | - Nissy Ann Harry
- School of Chemical Sciences Mahatma Gandhi University Priyadarsini Hills P O, Kottayam Kerala India 686560
| | - Gopinathan Anilkumar
- School of Chemical Sciences Mahatma Gandhi University Priyadarsini Hills P O, Kottayam Kerala India 686560
- Advanced Molecular Materials Research Centre (AMMRC) Mahatma Gandhi University Priyadarsini Hills P O Kottayam, Kerala India 686560
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4
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D. Averin A, S. Abel A, N. Kotovshchikov Y, A. Maloshitskaya O, N. Savelyev E, S. Orlinson B, A. Novakov I, P. Beletskaya I. Problem of Regioselectivity in the Amination of 2-Fluoro-5-iodopyridine with Adamantylalkyl Amines. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)64] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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5
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Méndez MV, Simonetti SO, Kaufman TS, Bracca ABJ. A concise Friedländer/Buchwald–Hartwig approach to the total synthesis of quindoline, a bioactive natural indoloquinoline alkaloid, and toward the unnatural 10-methylquindoline. NEW J CHEM 2019. [DOI: 10.1039/c9nj01961h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Friedländer and Buchwald–Hartwig reactions were used to achieve an efficient total synthesis of quindoline and a new synthesis of the unnatural 10-methylquindoline. DFT calculations were employed to explain the outcome of a failed key transformation.
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Affiliation(s)
- María V. Méndez
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario
- Argentina
| | - Sebastian O. Simonetti
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario
- Argentina
| | - Teodoro S. Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario
- Argentina
| | - Andrea B. J. Bracca
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario
- Argentina
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6
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Liu LD, Lei ZL, Wang H, Bian M, Liu ZJ, Liu JT, Hu XJ. Inorganic base-mediated stereoselective hydroamination of arylalkynes with imidazole: An efficient access to N -vinylimidazoles. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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7
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Madácsi R, Gyuris M, Wölfling J, Puskás LG, Kanizsai I. Highly regioselective 4-hydroxy-1-methylpiperidine mediated aromatic nucleophilic substitution on a perfluorinated phthalimide core. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Tassone JP, MacQueen PM, Lavoie CM, Ferguson MJ, McDonald R, Stradiotto M. Nickel-Catalyzed N-Arylation of Cyclopropylamine and Related Ammonium Salts with (Hetero)aryl (Pseudo)halides at Room Temperature. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02014] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Joseph P. Tassone
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, PO Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - Preston M. MacQueen
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, PO Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - Christopher M. Lavoie
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, PO Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - Michael J. Ferguson
- X-Ray
Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Robert McDonald
- X-Ray
Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Mark Stradiotto
- Department
of Chemistry, Dalhousie University, 6274 Coburg Road, PO Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
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9
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Ye F, Haddad M, Ratovelomanana-Vidal V, Michelet V. Ruthenium-Catalyzed [2 + 2 + 2] Cycloaddition Reaction Forming 2-Aminopyridine Derivatives from α,ω-Diynes and Cyanamides. Org Lett 2017; 19:1104-1107. [PMID: 28225282 DOI: 10.1021/acs.orglett.7b00130] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel, efficient, and mild synthetic route for the preparation of 2-aminopyridines via ruthenium-mediated [2 + 2 + 2] cycloaddition of α,ω-diynes and cyanamides has been developed. This atom-economical catalytic process demonstrated remarkable regioselectivities to access pyridine derivatives of high synthetic utility.
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Affiliation(s)
- Fei Ye
- PSL Research University, Chimie ParisTech - CNRS , Institut de Recherche de Chimie Paris, Paris 75005, France
| | - Mansour Haddad
- PSL Research University, Chimie ParisTech - CNRS , Institut de Recherche de Chimie Paris, Paris 75005, France
| | | | - Véronique Michelet
- PSL Research University, Chimie ParisTech - CNRS , Institut de Recherche de Chimie Paris, Paris 75005, France
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10
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Hashimoto T, Ishii S, Yano R, Miura H, Sakata K, Takeuchi R. Iridium-Catalyzed [2+2+2] Cycloaddition of α,ω-Diynes with Cyanamides. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500637] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Facile preparation of 3-substituted-2,6-difluoropyridines: application to the synthesis of 2,3,6-trisubstituted pyridines. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Sung S, Braddock DC, Armstrong A, Brennan C, Sale D, White AJP, Davies RP. Synthesis, characterisation and reactivity of copper(I) amide complexes and studies on their role in the modified Ullmann amination reaction. Chemistry 2015; 21:7179-92. [PMID: 25788223 PMCID: PMC4471577 DOI: 10.1002/chem.201405699] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Indexed: 11/29/2022]
Abstract
A series of copper(I) alkylamide complexes have been synthesised; copper(I) dicyclohexylamide (1), copper(I) 2,2,6,6-tetramethylpiperidide (2), copper(I) pyrrolidide (3), copper(I) piperidide (4), and copper(I) benzylamide (5). Their solid-state structures and structures in [D6 ]benzene solution are characterised, with the aggregation state in solution determined by a combination of DOSY NMR spectroscopy and DFT calculations. Complexes 1, 2 and 4 are shown to exist as tetramers in the solid state by X-ray crystallography. In [D6 ]benzene solution, complexes 1, 2 and 5 were found by using (1) H DOSY NMR to exist in rapid equilibrium between aggregates with average aggregation numbers of 2.5, 2.4 and 3.3, respectively, at 0.05 M concentration. Conversely, distinct trimeric, tetrameric and pentameric forms of 3 and 4 were distinguishable by one-dimensional (1) H and (1) H DOSY NMR spectroscopy. Complexes 3-5 are found to react stoichiometrically with iodobenzene, in the presence or absence of 1,10-phenanthroline as an ancillary ligand, to give arylamine products indicative of their role as potential intermediates in the modified Ullmann reaction. The role of phenanthroline has also been explored both in the stoichiometric reaction and in the catalytic Ullmann protocol.
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Affiliation(s)
- Simon Sung
- Department of Chemistry, Imperial College LondonSouth Kensington, London, SW7 2AZ (UK)
| | | | - Alan Armstrong
- Department of Chemistry, Imperial College LondonSouth Kensington, London, SW7 2AZ (UK)
| | - Colin Brennan
- Process Studies Group, Syngenta, Jealott*s Hill Research CentreBracknell, Berkshire RG42 6EY (UK)
| | - David Sale
- Process Studies Group, Syngenta, Jealott*s Hill Research CentreBracknell, Berkshire RG42 6EY (UK)
| | - Andrew J P White
- Department of Chemistry, Imperial College LondonSouth Kensington, London, SW7 2AZ (UK)
| | - Robert P Davies
- Department of Chemistry, Imperial College LondonSouth Kensington, London, SW7 2AZ (UK)
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13
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Abou-Shehada S, Teasdale MC, Bull SD, Wade CE, Williams JMJ. Lewis acid activation of pyridines for nucleophilic aromatic substitution and conjugate addition. CHEMSUSCHEM 2015; 8:1083-1087. [PMID: 25684444 DOI: 10.1002/cssc.201403154] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/27/2014] [Indexed: 06/04/2023]
Abstract
A clean, mild and sustainable method for the functionalization of pyridines and their analogues is reported. A zinc-based Lewis acid is used to activate pyridine and its analogues towards nucleophilic aromatic substitution, conjugate addition, and cyclization reactions by binding to the nitrogen on the pyridine ring and activating the pyridine ring core towards further functionalization.
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Affiliation(s)
- Sarah Abou-Shehada
- Centre for Doctoral training at the Centre for Sustainable Chemical Technologies, Department of Chemistry, University of Bath, Bath, BA2 7AY (UK)
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14
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Kanazawa Y, Yokota T, Ogasa H, Watanabe H, Hanakawa T, Soga S, Kawatsura M. Chemoselective amination of bromoiodobenzenes with diarylamines by palladium/Xantphos or ligand-free copper catalysts. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.01.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Maity T, Saha D, Koner S. Aromatic N-Arylations Catalyzed by Copper-Anchored Porous Zinc-Based Metal-Organic Framework under Heterogeneous Conditions. ChemCatChem 2014. [DOI: 10.1002/cctc.201400056] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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16
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Ge S, Green RA, Hartwig JF. Controlling first-row catalysts: amination of aryl and heteroaryl chlorides and bromides with primary aliphatic amines catalyzed by a BINAP-ligated single-component Ni(0) complex. J Am Chem Soc 2014; 136:1617-27. [PMID: 24397570 PMCID: PMC3985683 DOI: 10.1021/ja411911s] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Indexed: 12/17/2022]
Abstract
First-row metal complexes often undergo undesirable one-electron redox processes during two-electron steps of catalytic cycles. We report the amination of aryl chlorides and bromides with primary aliphatic amines catalyzed by a well-defined, single-component nickel precursor (BINAP)Ni(η(2)-NC-Ph) (BINAP = 2,2'-bis(biphenylphosphino)-1,1'-binaphthalene) that minimizes the formation of Ni(I) species and (BINAP)2Ni. The scope of the reaction encompasses electronically varied aryl chlorides and nitrogen-containing heteroaryl chlorides, including pyridine, quinoline, and isoquinoline derivatives. Mechanistic studies support the catalytic cycle involving a Ni(0)/Ni(II) couple for this nickel-catalyzed amination and are inconsistent with a Ni(I) halide intermediate. Monitoring the reaction mixture by (31)P NMR spectroscopy identified (BINAP)Ni(η(2)-NC-Ph) as the resting state of the catalyst in the amination of both aryl chlorides and bromides. Kinetic studies showed that the amination of aryl chlorides and bromides is first order in both catalyst and aryl halide and zero order in base and amine. The reaction of a representative aryl chloride is inverse first order in PhCN, but the reaction of a representative aryl bromide is zero order in PhCN. This difference in the order of the reaction in PhCN indicates that the aryl chloride reacts with (BINAP)Ni(0), formed by dissociation PhCN from (BINAP)Ni(η(2)-NC-Ph), but the aryl bromide directly reacts with (BINAP)Ni(η(2)-NC-Ph). The overall kinetic behavior is consistent with turnover-limiting oxidative addition of the aryl halide to Ni(0). Several pathways for catalyst decomposition were identified, such as the formation of the catalytically inactive bis(amine)-ligated arylnickel(II) chloride, (BINAP)2Ni(0), and the Ni(I) species [(BINAP)Ni(μ-Cl)]2. By using a well-defined nickel complex as catalyst, the formation of (BINAP)2Ni(0) is avoided and the formation of the Ni(I) species [(BINAP)Ni(μ-Cl)]2 is minimized.
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Affiliation(s)
- Shaozhong Ge
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Rebecca A. Green
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - John F. Hartwig
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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17
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Hosseini-Sarvari M, Moeini F. Nano copper(i) oxide/zinc oxide catalyzed N-arylation of nitrogen-containing heterocycles with aryl halides and arylboronic acids in air. RSC Adv 2014. [DOI: 10.1039/c3ra46548a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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18
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Metal Catalyzed Cross-Coupling Reactions in the Decoration of Pyrimidine, Pyridazine, and Pyrazine. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Steib AK, Kuzmina OM, Fernandez S, Flubacher D, Knochel P. Efficient Chromium(II)-Catalyzed Cross-Coupling Reactions between Csp2 Centers. J Am Chem Soc 2013; 135:15346-9. [DOI: 10.1021/ja409076z] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Andreas K. Steib
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Olesya M. Kuzmina
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Sarah Fernandez
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 Munich, Germany
| | | | - Paul Knochel
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 Munich, Germany
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20
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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: 101] [Impact Index Per Article: 9.2] [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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21
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Liang D, He Y, Liu L, Zhu Q. A Metal-Free Tandem Demethylenation/C(sp2)–H Cycloamination Process of N-Benzyl-2-aminopyridines via C–C and C–N Bond Cleavage. Org Lett 2013; 15:3476-9. [DOI: 10.1021/ol4015656] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Dongdong Liang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Yimiao He
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Lanying Liu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Qiang Zhu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
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22
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Getlik M, Wilson BJ, Morshed MM, Watson IDG, Tang D, Subramanian P, Al-awar R. Rearrangement of 4-Amino-3-halo-pyridines by Nucleophilic Aromatic Substitution. J Org Chem 2013; 78:5705-10. [DOI: 10.1021/jo4003773] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthäus Getlik
- Drug Discovery Program, Ontario Institute for Cancer Research, 101 College
Street, MaRS Centre, South Tower, Toronto, ON M5G 0A3, Canada
| | - Brian J. Wilson
- Drug Discovery Program, Ontario Institute for Cancer Research, 101 College
Street, MaRS Centre, South Tower, Toronto, ON M5G 0A3, Canada
| | - M. Monzur Morshed
- Drug Discovery Program, Ontario Institute for Cancer Research, 101 College
Street, MaRS Centre, South Tower, Toronto, ON M5G 0A3, Canada
| | - Iain D. G. Watson
- Drug Discovery Program, Ontario Institute for Cancer Research, 101 College
Street, MaRS Centre, South Tower, Toronto, ON M5G 0A3, Canada
| | - Doris Tang
- Drug Discovery Program, Ontario Institute for Cancer Research, 101 College
Street, MaRS Centre, South Tower, Toronto, ON M5G 0A3, Canada
| | - Pandiaraju Subramanian
- Drug Discovery Program, Ontario Institute for Cancer Research, 101 College
Street, MaRS Centre, South Tower, Toronto, ON M5G 0A3, Canada
| | - Rima Al-awar
- Drug Discovery Program, Ontario Institute for Cancer Research, 101 College
Street, MaRS Centre, South Tower, Toronto, ON M5G 0A3, Canada
- Department of Pharmacology and
Toxicology, University of Toronto, Medical
Sciences Building, 1 King’s College Circle, Toronto, ON M5S
1A8, Canada
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23
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Chang YH, Nakajima Y, Ozawa F. A Bis(phosphaethenyl)pyridine Complex of Iridium(I): Synthesis and Catalytic Application to N-Alkylation of Amines with Alcohols. Organometallics 2013. [DOI: 10.1021/om4000743] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yung-Hung Chang
- International
Research Center
for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yumiko Nakajima
- International
Research Center
for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- JST-PRESTO, Uji, Kyoto 611-0011, Japan
| | - Fumiyuki Ozawa
- International
Research Center
for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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24
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El Kaïm L, Grimaud L, Pravin P. Ugi–Smiles Couplings of 4-Substituted Pyridine Derivatives: A Fast Access to Chloroquine Analogues. Org Lett 2011; 14:476-8. [DOI: 10.1021/ol202974w] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laurent El Kaïm
- DCSO-UMR 7652: CNRS-ENSTA-Ecole Polytechnique, Laboratoire Chimie et Procédés, Ecole Nationale Supérieure de Techniques Avancées, 32 Bd Victor, 75739 Paris Cedex 15, France
| | - Laurence Grimaud
- DCSO-UMR 7652: CNRS-ENSTA-Ecole Polytechnique, Laboratoire Chimie et Procédés, Ecole Nationale Supérieure de Techniques Avancées, 32 Bd Victor, 75739 Paris Cedex 15, France
| | - Patil Pravin
- DCSO-UMR 7652: CNRS-ENSTA-Ecole Polytechnique, Laboratoire Chimie et Procédés, Ecole Nationale Supérieure de Techniques Avancées, 32 Bd Victor, 75739 Paris Cedex 15, France
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Akkilagunta VK, Kakulapati RR. Synthesis of Unsymmetrical Sulfides Using Ethyl Potassium Xanthogenate and Recyclable Copper Catalyst under Ligand-Free Conditions. J Org Chem 2011; 76:6819-24. [PMID: 21732640 DOI: 10.1021/jo200793k] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Vijay Kumar Akkilagunta
- Organic Chemistry Division-I, Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500607, India
| | - Rama Rao Kakulapati
- Organic Chemistry Division-I, Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500607, India
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Stolley RM, Maczka MT, Louie J. Nickel-Catalyzed [2+2+2] Cycloaddition of Diynes and Cyanamides. European J Org Chem 2011; 2011:3815-3824. [PMID: 25346615 PMCID: PMC4208422 DOI: 10.1002/ejoc.201100428] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Indexed: 11/10/2022]
Abstract
A variety of bicyclic N,N-disubstituted 2-aminopyridines have been prepared from diynes and cyanamides by nickel-catalyzed [2+2+2] cycloaddition reactions. The reactions proceeded at room temperature with low catalyst loading to afford 2-aminopyridines in good to excellent yields. The method is amenable to both internal and terminal diynes and proceeds in a regioselective manner. A number of cyanamides with diverse functional group tolerance were used. The intermolecular version employing 3-hexyne and N-cyanopyrrolidine also afforded the desired N,N-disubstituted 2-aminopyridine in good yield.
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Affiliation(s)
- Ryan M. Stolley
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, USA, Fax: +1-801-581-8433
| | - Michael T. Maczka
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, USA, Fax: +1-801-581-8433
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, USA, Fax: +1-801-581-8433
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