1
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Rao WH, Li YG, Jiang LL, Li Q, Zou GD, Cao X. Metal-Free Selective Ortho-C-H Amidation of Hypervalent(III) Iodobezenes with N-Methoxy Amides under Mild Conditions. J Org Chem 2023; 88:13825-13837. [PMID: 37737590 DOI: 10.1021/acs.joc.3c01472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
A metal-free selective ortho-C-H amidation of aryl iodines(III) with the use of N-methoxy amides as aminating reagents under mild conditions is described here. In the protocol, excellent chemoselectivity and high regioselectivity were obtained. Notably, the iodine substituent rendered the amidation product suitable to be used for further elaboration.
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Affiliation(s)
- Wei-Hao Rao
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Ying-Ge Li
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Li-Li Jiang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Qi Li
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Guo-Dong Zou
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Xinhua Cao
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
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2
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Roy S, Panja S, Sahoo SR, Chatterjee S, Maiti D. Enroute sustainability: metal free C-H bond functionalisation. Chem Soc Rev 2023; 52:2391-2479. [PMID: 36924227 DOI: 10.1039/d0cs01466d] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
The term "C-H functionalisation" incorporates C-H activation followed by its transformation. In a single line, this can be defined as the conversion of carbon-hydrogen bonds into carbon-carbon or carbon-heteroatom bonds. The catalytic functionalisation of C-H bonds using transition metals has emerged as an atom-economical technique to engender new bonds without activated precursors which can be considered as a major drawback while attempting large-scale synthesis. Replacing the transition-metal-catalysed approach with a metal-free strategy significantly offers an alternative route that is not only inexpensive but also environmentally benign to functionalize C-H bonds. Recently metal free synthetic approaches have been flourishing to functionalize C-H bonds, motivated by the search for greener, cost-effective, and non-toxic catalysts. In this review, we will highlight the comprehensive and up-to-date discussion on recent examples of ground-breaking research on green and sustainable metal-free C-H bond functionalisation.
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Affiliation(s)
- Sayan Roy
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Subir Panja
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Sumeet Ranjan Sahoo
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Sagnik Chatterjee
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India. .,Department of Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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3
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Zhu Y, Dai R, Huang C, Zhou W, Zhang X, Yang K, Wen H, Li W, Liu J. Synthesis of Isoquinolone, 1,2-Benzothiazine, and Naphtho[1',2':4,5]imidazo[1,2- a]pyridine Derivatives via Rhodium(III)-Catalyzed (4 + 2) Annulation. J Org Chem 2022; 87:11722-11734. [PMID: 35968716 DOI: 10.1021/acs.joc.2c01376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this study, we report a novel and efficient synthetic method to construct isoquinolone scaffold via the Rh(III)-catalyzed (4 + 2) annulation of benzamide with an unreported coupling reagent methyl 2-chloroacrylate. Accordingly, other valuable 1,2-benzothiazine and naphtho[1',2':4,5]imidazo[1,2-a]pyridine derivatives are also obtained through a similar synthetic protocol. Thus, our developed method is highlighted by high yield and reaction versatility.
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Affiliation(s)
- Yueyue Zhu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Rupeng Dai
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chaoqun Huang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wang Zhou
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaoyuan Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Kundi Yang
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Hongmei Wen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wei Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jian Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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4
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Morimoto K, Yanase K, Toda K, Takeuchi H, Dohi T, Kita Y. Cyclic Hypervalent Iodine-Induced Oxidative Phenol and Aniline Couplings with Phenothiazines. Org Lett 2022; 24:6088-6092. [PMID: 35921162 DOI: 10.1021/acs.orglett.2c02470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
C-H/N-H bond functionalization for direct intermolecular aryl C-N couplings is a useful synthetic process. In this study, we achieved metal-free cross-dehydrogenative coupling of phenols and anilines with phenothiazines using hypervalent iodine reagents. This method affords selective amination products under mild conditions. Electron-rich phenols and anilines could be employed, affording moderate-to-high yields of N-arylphenothiazines. Aniline amination proceeded efficiently at 20 °C, a previously unreported phenomenon.
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Affiliation(s)
- Koji Morimoto
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan.,Research Organization of Science and Technology, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Kana Yanase
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Kentaro Toda
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Hitoshi Takeuchi
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan.,Research Organization of Science and Technology, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Yasuyuki Kita
- Research Organization of Science and Technology, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
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5
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Ravindar L, Hasbullah SA, Hassan NI, Qin HL. Cross‐Coupling of C‐H and N‐H Bonds: a Hydrogen Evolution Strategy for the Construction of C‐N Bonds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lekkala Ravindar
- Universiti Kebangsaan Malaysia Fakulti Teknologi dan Sains Maklumat Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Siti Aishah Hasbullah
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Nurul Izzaty Hassan
- Universiti Kebangsaan Malaysia Fakulti Sains dan Teknologi Chemical Sciences Faculty of Science & Technology 43600 Bandar Baru Bangi MALAYSIA
| | - Hua-Li Qin
- Wuhan University of Technology School of Chemistry 430070 Hubei CHINA
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6
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Zhang G, Sun S, Hou S, Xu J. Diverse and chemoselective sigmatropic shift rearrangements of multisubstituted N, O-diarylhydroxylamines. Org Biomol Chem 2022; 20:5470-5480. [PMID: 35775435 DOI: 10.1039/d2ob00771a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N,O-Diarylhydroxylamines generally favor the [3,3] sigmatropic shift rearrangement. Possible N/O[1,3] sigmatropic shift rearrangements of multisubstituted N,O-diarylhydroxylamines were investigated experimentally with rationally designed substrates, which were generally in situ prepared from suitable nitroaryl halides and N-arylhydroxylamines via aromatic nucleophilic substitution. The results indicate that both N- and O-(2,4,6-trimethylphenyl)hydroxylamines still favor the [3,3] sigmatropic shift followed by tautomerization rather than N[1,3] and O[1,3] sigmatropic shifts and the rearranged products of N-(2,4,6-trimethylphenyl)hydroxylamines further undergo an intramolecular nucleophilic addition to afford dibenzo[b,d]furan-4a(9bH)-amine derivatives, while N-(4-mono- and 3,5-disubstituted phenyl)-O-(2,4,6-trinitrophenyl)hydroxylamines favorably first undergo the O[1,3] sigmatropic shift followed by tandem Smiles rearrangement and amide/ester exchange reactions, generating 2-arylaminoaryl benzoate derivatives. N-Phenyl-O-(2,4,6-trinitrophenyl)hydroxylamines undergo tandem double O[1,3] sigmatropic shift rearrangement to produce formal O[1,5] shift products. However, O-(2,6-dinitrophenyl)-N-(4-substituted phenyl)hydroxylamines undergo tandem O[1,3] and double [3,3] sigmatropic shift rearrangements to give formal 3,5-shift products. The proposed mechanism is rationalized by density functional theory (DFT) calculations. The current investigation provides not only a comprehensive understanding of the chemoselective sigmatropic shift rearrangements of N,O-diarylhydroxylamines, but also some novel synthetic strategies for dibenzo[b,d]furanamines, diarylamines, diaryl ethers, 2'-amino-[1,1'-biphenyl]-2(1H)-one, and 2'-amino-[1,1'-biaryl]-4-ol derivatives.
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Affiliation(s)
- Guangyu Zhang
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Simin Sun
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Shili Hou
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guangxi 541004, China
| | - Jiaxi Xu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.
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7
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Shchepochkin AV, Antipin FV, Charushin VN, Chupakhin ON. Oxidative C–H Functionalization of Arenes: Main Tool of 21st Century Green Chemistry. A Review. DOKLADY CHEMISTRY 2021. [DOI: 10.1134/s0012500821070016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Bauer JO, Koschabek S, Falk A. Interplay of Hydrogen and Halogen Bonding in the Crystal Structures of 2,6‐Dihalogenated Phenols. ChemistrySelect 2021. [DOI: 10.1002/slct.202101723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jonathan O. Bauer
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 D-93053 Regensburg Germany
| | - Sarah Koschabek
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 D-93053 Regensburg Germany
| | - Alexander Falk
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 D-93053 Regensburg Germany
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9
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Cremer C, Goswami M, Rank CK, Bruin B, Patureau FW. Tellur(II)/Tellur(III)‐katalysierte dehydrierende C‐N‐Bindungsbildung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Christopher Cremer
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | | | - Christian K. Rank
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | - Bas Bruin
- Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam Niederlande
| | - Frederic W. Patureau
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
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10
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Cremer C, Goswami M, Rank CK, de Bruin B, Patureau FW. Tellurium(II)/Tellurium(III)-Catalyzed Cross-Dehydrogenative C-N Bond Formation. Angew Chem Int Ed Engl 2021; 60:6451-6456. [PMID: 33320996 PMCID: PMC7986434 DOI: 10.1002/anie.202015248] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/11/2020] [Indexed: 01/03/2023]
Abstract
The TeII /TeIII -catalyzed dehydrogenative C-H phenothiazination of challenging phenols featuring electron-withdrawing substituents under mild aerobic conditions and with high yields is described. These unexpected TeII /TeIII radical catalytic properties were characterized by cyclic voltammetry, EPR spectroscopy, kinetic experiments, and DFT calculations.
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Affiliation(s)
- Christopher Cremer
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | | | - Christian K. Rank
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Bas de Bruin
- Van't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Frederic W. Patureau
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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11
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Tian S, Luo T, Zhu Y, Wan JP. Recent advances in the diversification of chromones and flavones by direct C H bond activation or functionalization. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.07.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Xu X, Amuti A, Wusiman A. Catalyst and Additive‐Free Direct Amidation/Halogenation of Tertiary Arylamines with
N
‐haloimide/amides. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xiu‐Juan Xu
- School of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830054 People's Republic of China
| | - Adila Amuti
- School of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830054 People's Republic of China
| | - Abudureheman Wusiman
- School of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830054 People's Republic of China
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials Urumqi 830054 People's Republic of China
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13
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Wang Y, Hu B, Zhang Q, Zhao S, Zhao Y, Zhang B, Yu F. Selectfluor-triggered fluorination/cyclization of o-hydroxyarylenaminones: A facile access to 3-fluoro-chromones. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820923084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A fast and efficient Selectfluor-triggered fluorination/cyclization reaction of o-hydroxyarylenaminones has been successfully developed. The reaction successfully provides an expedient method for the synthesis of 3-fluoro-chromones promoted by potassium carbonate, which shows readily available starting materials and is easy to operate. In addition, a plausible mechanism of this tandem cyclization reaction was proposed where 4 H-chromen-4-one, 2-(dimethylamino)-3,3-difluorochroman-4-one, and 3,3-difluoro-2-hydroxychroman-4-one were not found to be the reactive intermediates. Moreover, these novel compounds have been obtained in moderate to good yields, and their structures have been confirmed by 1H NMR, 13C NMR, and high-resolution mass spectrometry.
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Affiliation(s)
- Yanqin Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Biao Hu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Qiaohe Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Siyun Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Yuxuan Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Biao Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
| | - Fuchao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, P.R. China
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14
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Maity A, Frey BL, Hoskinson ND, Powers DC. Electrocatalytic C–N Coupling via Anodically Generated Hypervalent Iodine Intermediates. J Am Chem Soc 2020; 142:4990-4995. [DOI: 10.1021/jacs.9b13918] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Asim Maity
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Brandon L. Frey
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Nathanael D. Hoskinson
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - David C. Powers
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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15
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Affiliation(s)
- Saikat Maiti
- School of Chemical SciencesNational Institute of Science Education and Research (NISER)HBNIBhubaneswarPO Bhimpur-Padanpur Via Jatni District Khurda Odisha 752050 India
| | - Md Toufique Alam
- School of Chemical SciencesNational Institute of Science Education and Research (NISER)HBNIBhubaneswarPO Bhimpur-Padanpur Via Jatni District Khurda Odisha 752050 India
| | - Ankita Bal
- School of Chemical SciencesNational Institute of Science Education and Research (NISER)HBNIBhubaneswarPO Bhimpur-Padanpur Via Jatni District Khurda Odisha 752050 India
| | - Prasenjit Mal
- School of Chemical SciencesNational Institute of Science Education and Research (NISER)HBNIBhubaneswarPO Bhimpur-Padanpur Via Jatni District Khurda Odisha 752050 India
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16
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Budhwan R, Yadav S, Murarka S. Late stage functionalization of heterocycles using hypervalent iodine(iii) reagents. Org Biomol Chem 2019; 17:6326-6341. [PMID: 31215580 DOI: 10.1039/c9ob00694j] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Late stage functionalization (LSF) through direct X-H manipulations (X = C, N) enables synthetic chemists to accelerate the diversification of natural products, agrochemicals and pharmaceuticals allowing rapid access to novel bioactive molecules without resorting to arduous de novo synthesis. LSF does not only allow tapping of the hitherto unexplored chemical space but also renders the synthetic sequence more straightforward, atom economical and cost-effective. In this regard, the recent decade has witnessed the emergence of hypervalent iodine(iii) reagents as a powerful synthetic tool owing to their easy availability, mild reaction conditions, remarkable oxidizing properties and high functional group tolerance. Iodine(iii) reagents have tremendous applications in the regio- and chemo-selective late-stage functionalization of a diverse variety of heterocycles through an exciting range of transformations, such as oxidative amination, cross-dehydrogenative coupling (CDC), fluoroalkylation, azidation, halogenation and oxidation. The present review, classified according to the types of synthetic methods involved, encompasses all these recent developments in the field of transition-metal-free iodine(iii)-catalyzed/mediated direct functionalizations of heterocycles with representative examples and insightful mechanistic discussions.
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Affiliation(s)
- Rajnish Budhwan
- Department of Chemistry, Indian Institute of Technology Jodhpur, NH-65 Nagaur Road, Karwar - 342037, Jodhpur District, Rajasthan, India.
| | - Suman Yadav
- Department of Chemistry, Indian Institute of Technology Jodhpur, NH-65 Nagaur Road, Karwar - 342037, Jodhpur District, Rajasthan, India.
| | - Sandip Murarka
- Department of Chemistry, Indian Institute of Technology Jodhpur, NH-65 Nagaur Road, Karwar - 342037, Jodhpur District, Rajasthan, India.
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17
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18
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Abstract
There has been increasing use of hypervalent iodine reagents in the field of nucleoside chemistry. Applications span: (a) synthesis of nucleoside analogues with sulfur and seleno sugar surrogates, (b) synthesis of unusual carbocyclic and ether ring-containing nucleosides, (c) introduction of sulfur and selenium into pyrimidine bases of nucleosides and analogues, (d) synthesis of isoxazole and isoxazoline ring-containing nucleoside analogues, (e) involvement of purine ring nitrogen atoms for remote C-H bond oxidation, and (f) metal-catalyzed and uncatalyzed synthesis of benzimidazolyl purine nucleoside analogues by intramolecular C-N bond formation. This review offers a perspective on developments involving the use of hypervalent iodine reagents in the field of nucleoside chemistry that have appeared in the literature in the 2003-2017 time frame.
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Affiliation(s)
- Mahesh K Lakshman
- Department of Chemistry & Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA, and The Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA
| | - Barbara Zajc
- Department of Chemistry & Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA, and The Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA
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19
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Goswami M, Konkel A, Rahimi M, Louillat‐Habermeyer M, Kelm H, Jin R, de Bruin B, Patureau FW. Mechanism of the Dehydrogenative Phenothiazination of Phenols. Chemistry 2018; 24:11936-11943. [PMID: 29766577 PMCID: PMC6120528 DOI: 10.1002/chem.201800730] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/09/2018] [Indexed: 01/09/2023]
Abstract
The straightforward capture of oxidized phenothiazines with phenols under aerobic conditions represents a unique cross-dehydrogenative C-N bond-forming reaction in terms of operational simplicity. The mechanism of this cross-dehydrogenative N-arylation of phenothiazines with phenols has been the object of debate, particularly regarding the order in which the substrates are oxidized and their potentially radical or cationic nature. Understanding the selective reactivity of phenols for oxidized phenothiazines is one of the key objectives of this study. The reaction mechanism is investigated in detail by utilizing electron paramagnetic resonance spectroscopy, cyclic voltammetry, radical trap experiments, kinetic isotope effects, and solvent effects. Finally, the key reaction steps are calculated by using density functional theory (DFT) and broken-symmetry open-shell singlet DFT methods to unravel a unique biradical mechanism for the oxidative phenothiazination of phenols.
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Affiliation(s)
- Monalisa Goswami
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam, Park904 1098XHAmsterdamThe Netherlands
| | - Alexander Konkel
- FB ChemieTU KaiserslauternErwin Schrödinger Strasse 5267663KaiserslauternGermany
| | - Maryam Rahimi
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam, Park904 1098XHAmsterdamThe Netherlands
| | | | - Harald Kelm
- FB ChemieTU KaiserslauternErwin Schrödinger Strasse 5267663KaiserslauternGermany
| | - Rongwei Jin
- FB ChemieTU KaiserslauternErwin Schrödinger Strasse 5267663KaiserslauternGermany
| | - Bas de Bruin
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam, Park904 1098XHAmsterdamThe Netherlands
| | - Frederic W. Patureau
- FB ChemieTU KaiserslauternErwin Schrödinger Strasse 5267663KaiserslauternGermany
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20
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Ding Q, He H, Cai Q. Chiral Aryliodine-Catalyzed Asymmetric Oxidative C–N Bond Formation via Desymmetrization Strategy. Org Lett 2018; 20:4554-4557. [PMID: 30036067 DOI: 10.1021/acs.orglett.8b01849] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Qiang Ding
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Huan He
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Qian Cai
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510632, China
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21
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Sun CH, Lu Y, Zhang Q, Lu R, Bao LQ, Shen MH, Xu HD. Selective S-arylation of 2-oxazolidinethiones and selective N-arylation of 2-benzoxazolinones/2-benzimidazolinones. Org Biomol Chem 2018; 15:4058-4063. [PMID: 28443868 DOI: 10.1039/c7ob00040e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
There exist three possible patterns for the reaction of cyclic 2-oxazolidinethione and 2-benzoxazolidinethione with arynes, namely (a) S-arylation, (b) N-arylation, and (c) aryne insertion into the thiocarbonyl group (C[double bond, length as m-dash]S). Our studies demonstrate that S-arylation wins out affording S-aryl dihydrooxazoles. In contrast, for related reactions of cyclic 2-benzoxazolinone and 2-benzimidazolinone with arynes, it is found that N-arylation outcompetes O-arylation and aryne insertion into the C[double bond, length as m-dash]O group to give N-aryl 2-benzoxazolinones and N-aryl 2-benzimidazolinones.
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Affiliation(s)
- Chu-Han Sun
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou, Jiangsu Province 213164, China.
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22
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Maiti S, Mal P. Soft–Hard Acid/Base-Controlled, Oxidative, N-Selective Arylation of Sulfonanilides via a Nitrenium Ion. J Org Chem 2018; 83:1340-1347. [DOI: 10.1021/acs.joc.7b02841] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Saikat Maiti
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
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23
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Satishkumar S, Poudapally S, Vuram PK, Gurram V, Pottabathini N, Sebastian D, Yang L, Pradhan P, Lakshman MK. Pd-catalyzed versus uncatalyzed, PhI(OAc) 2-mediated cyclization reactions of N6-([1,1'-biaryl]-2-yl)adenine nucleosides. ChemCatChem 2017; 9:4058-4069. [PMID: 29503672 DOI: 10.1002/cctc.201700918] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In this work we have assessed reactions of N6-([1,1'-biaryl]-2-yl)adenine nucleosides with Pd(OAc)2 and PhI(OAc)2, via a PdII/PdIV redox cycle. The substrates are readily obtained by Pd/Xantphos-catalyzed reaction of adenine nucleosides with 2-bromo-1,1'-biaryls. In PhMe, the N6-biarylyl nucleosides gave C6-carbazolyl nucleoside analogues by C-N bond formation with the exocyclic N6 nitrogen atom. In the solvent screening for the Pd-catalyzed reactions, an uncatalyzed process was found to be operational. It was observed that the carbazolyl products could also be obtained in the absence of a metal catalyst by reaction with PhI(OAc)2 in 1,1,1,3,3,3-hexafluoroisopropanol (HFIP). Thus, under Pd catalysis and in HFIP, reactions proceed to provide carbazolyl nucleoside analogues, with some differences. If reactions of N6-biarylyl nucleoside substrates were conducted in MeCN, formation of aryl benzimidazopurinyl nucleoside derivatives was observed in many cases by C-N bond formation with the N1 ring nitrogen atom of the purine (carbazole and benzimidazole isomers are readily separated by chromatography). Whereas PdII/PdIV redox is responsible for carbazole formation under the metal-catalyzed conditions, in HFIP and MeCN radical cations and/or nitrenium ions can be intermediates. An extensive set of radical inhibition experiments was conducted and the data are presented.
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Affiliation(s)
- Sakilam Satishkumar
- Department of Chemistry, The City College of New York, 160 Convent Avenue, New York, New York 10031, USA
| | - Suresh Poudapally
- Discovery Services, GVK Biosciences, Pvt. Ltd., 28A IDA Nacharam, Hyderabad 500076, Telangana, India
| | - Prasanna K Vuram
- Department of Chemistry, The City College of New York, 160 Convent Avenue, New York, New York 10031, USA
| | - Venkateshwarlu Gurram
- Discovery Services, GVK Biosciences, Pvt. Ltd., 28A IDA Nacharam, Hyderabad 500076, Telangana, India
| | - Narender Pottabathini
- Discovery Services, GVK Biosciences, Pvt. Ltd., 28A IDA Nacharam, Hyderabad 500076, Telangana, India
| | - Dellamol Sebastian
- Department of Chemistry, The City College of New York, 160 Convent Avenue, New York, New York 10031, USA.,The Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, New York 10016, USA
| | - Lijia Yang
- Department of Chemistry, The City College of New York, 160 Convent Avenue, New York, New York 10031, USA
| | - Padmanava Pradhan
- Department of Chemistry, The City College of New York, 160 Convent Avenue, New York, New York 10031, USA
| | - Mahesh K Lakshman
- Department of Chemistry, The City College of New York, 160 Convent Avenue, New York, New York 10031, USA.,The Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, New York 10016, USA
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24
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Zhao F, Sun T, Sun H, Xi G, Sun K. Hypervalent iodine mediated oxidative radical amination of heteroarenes under metal-free conditions. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.06.081] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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25
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Cheng Q, Qiu YH, Luo SL, Shuai L, Yuan Y, Chen YC, Ouyang Q. Regioselective and Switchable meso-Aminations and Couplings of 5,15-Diarylchlorins. Org Lett 2017; 19:3871-3874. [PMID: 28681605 DOI: 10.1021/acs.orglett.7b01739] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Controllable chemo- and regiodivergent amination reactions of anilines and chlorins are accomplished by employing different oxidants and substrates, constructing aminated chlorin monomers and dimers with high structural diversity. Importantly, besides preferential 20-meso-position, the oxidative amination was also realized at the inactive 10-meso-position by using phenyliodine bis(trifluoroacetate) (PIFA) and gold(III)-based reagents.
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Affiliation(s)
- Qi Cheng
- College of Pharmacy, Third Military Medical University , Chongqing 400038, China
| | - Yu-Hao Qiu
- College of Pharmacy, Third Military Medical University , Chongqing 400038, China
| | - Sheng-Lin Luo
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Department of Preventive Medicine, Third Military Medical University , Chongqing 400038, China
| | - Li Shuai
- College of Pharmacy, Third Military Medical University , Chongqing 400038, China
| | - Yi Yuan
- College of Pharmacy, Third Military Medical University , Chongqing 400038, China
| | - Ying-Chun Chen
- College of Pharmacy, Third Military Medical University , Chongqing 400038, China.,Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University , Chongqing 400038, China
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26
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Shakoor SMA, Mandal SK, Sakhuja R. An Articulate Oxidative Transition-Metal-Free Homocoupling of Imidazo Heterocycles through C(sp2
)-C(sp2
) Bond Formation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700238] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- S. M. Abdul Shakoor
- Department of Chemistry; Birla Institute of Technology & Science; 333031 Pilani Rajasthan India
| | - Sanjay K. Mandal
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Sector 81, S.A.S. Nagar 140306 Manuali P. O. Punjab India
| | - Rajeev Sakhuja
- Department of Chemistry; Birla Institute of Technology & Science; 333031 Pilani Rajasthan India
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27
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Yagyu T, Takemoto Y, Yoshimura A, Zhdankin VV, Saito A. Iodine(III)-Catalyzed Formal [2 + 2 + 1] Cycloaddition Reaction for Metal-Free Construction of Oxazoles. Org Lett 2017; 19:2506-2509. [DOI: 10.1021/acs.orglett.7b00742] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takuma Yagyu
- Division
of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan, and
| | - Yusuke Takemoto
- Division
of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan, and
| | - Akira Yoshimura
- Department
of Chemistry and Biochemistry, University of Minnesota, Duluth, Minnesota 55812 United States
| | - Viktor V. Zhdankin
- Department
of Chemistry and Biochemistry, University of Minnesota, Duluth, Minnesota 55812 United States
| | - Akio Saito
- Division
of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan, and
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28
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Maiti S, Mal P. Dehydrogenative Aromatic Ring Fusion for Carbazole Synthesis via C-C/C-N Bond Formation and Alkyl Migration. Org Lett 2017; 19:2454-2457. [PMID: 28430447 DOI: 10.1021/acs.orglett.7b01117] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An intermolecular dehydrogenative annulation (IDA) for carbazole synthesis via sequential C-C/C-N bond formation with a selective alkyl group migration is reported. Using the hypervalent iodine(III) reagent PhI(OAc)2 (PIDA), in a one-pot operation, up to five C(sp2)-H bonds, one N(sp3)-H bond functionalization, and one alkyl (Me, Et) group migration could all be achieved from non-prefunctionalized 1,3,5-trialkylbenzenes and anilides under ambient laboratory conditions. Mechanistically, it is shown that PIDA reacts with anilides to generate a nitrenium ion or an equivalent carbenium ion which influences the second aromatic ring to be activated for C-C/C-N bond formation. Strategically, regioselective fusion of arenes to anilides is described.
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Affiliation(s)
- Saikat Maiti
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar , HBNI, P.O. Bhimpur-Padanpur, Via Jatni, Khurda 752050, Odisha, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar , HBNI, P.O. Bhimpur-Padanpur, Via Jatni, Khurda 752050, Odisha, India
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29
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Maiti S, Achar TK, Mal P. An Organic Intermolecular Dehydrogenative Annulation Reaction. Org Lett 2017; 19:2006-2009. [DOI: 10.1021/acs.orglett.7b00562] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Saikat Maiti
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI, P.O. Bhimpur-Padanpur, Via Jatni, Khurda 752050, Odisha, India
| | - Tapas Kumar Achar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI, P.O. Bhimpur-Padanpur, Via Jatni, Khurda 752050, Odisha, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI, P.O. Bhimpur-Padanpur, Via Jatni, Khurda 752050, Odisha, India
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30
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Liang D, Yu W, Nguyen N, Deschamps JR, Imler GH, Li Y, MacKerell AD, Jiang C, Xue F. Iodobenzene-Catalyzed Synthesis of Phenanthridinones via Oxidative C–H Amidation. J Org Chem 2017; 82:3589-3596. [DOI: 10.1021/acs.joc.7b00106] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Dongdong Liang
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Wenbo Yu
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Nam Nguyen
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Jeffrey R. Deschamps
- Naval Research Laboratory, Code 6930, 4555 Overlook Avenue, Washington,
D.C. 20375, United States
| | - Gregory H. Imler
- Naval Research Laboratory, Code 6930, 4555 Overlook Avenue, Washington,
D.C. 20375, United States
| | - Yue Li
- Department
of Chemistry and Biochemistry, University of Maryland College Park, College
Park, Maryland 20740, United States
| | - Alexander D. MacKerell
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Chao Jiang
- Department
of Pharmaceutical Engineering, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Fengtian Xue
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
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31
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Satishkumar S, Lakshman MK. Benzimidazopurine nucleosides from N 6-aryl adenosine derivatives by PhI(OAc) 2-mediated C-N bond formation, no metal needed. Chem Commun (Camb) 2017; 53:2226-2229. [PMID: 27976760 DOI: 10.1039/c6cc07722f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of a variety of N6-aryl 2'-deoxyadenosine and adenosine derivatives with PhI(OAc)2 in 1,1,1,3,3,3-hexafluoro-2-propanol provides a facile access to benzimidazopurine nucleoside analogues by metal-free C-N bond formation with a purinyl nitrogen atom. These reactions likely proceed via radical-cation/radical processes as indicated by radical inhibition experiments.
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Affiliation(s)
- Sakilam Satishkumar
- Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA.
| | - Mahesh K Lakshman
- Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA. and The Ph.D. Program in Chemistry, The Graduate Center of The City University of New York, New York, NY 10016, USA
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32
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Affiliation(s)
- Yan Qin
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lihui Zhu
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sanzhong Luo
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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33
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Mostafa MAB, Calder EDD, Racys DT, Sutherland A. Intermolecular Aryl C-H Amination through Sequential Iron and Copper Catalysis. Chemistry 2017; 23:1044-1047. [PMID: 27918637 PMCID: PMC5396366 DOI: 10.1002/chem.201605671] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Indexed: 01/10/2023]
Abstract
A mild, efficient and regioselective method for para-amination of activated arenes has been developed through a combination of iron and copper catalysis. A diverse range of products were obtained from an operationally simple one-pot, two-step procedure involving bromination of the aryl substrate with the powerful Lewis acid iron(III) triflimide, followed by a copper(I)-catalysed N-arylation reaction. This two-step dehydrogenative process for the regioselective coupling of aromatic C-H bonds with non-activated amines was applicable to anisole-, phenol-, aniline- and acetanilide-type aryl compounds. Importantly, the arene substrates were used as the limiting reagent and required no protecting-group manipulations during the transformation.
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Affiliation(s)
- Mohamed A. B. Mostafa
- WestCHEM, School of Chemistry, The Joseph Black BuildingUniversity of GlasgowUniversity AvenueGlasgowG12 8QQUK
| | - Ewen D. D. Calder
- WestCHEM, School of Chemistry, The Joseph Black BuildingUniversity of GlasgowUniversity AvenueGlasgowG12 8QQUK
| | - Daugirdas T. Racys
- WestCHEM, School of Chemistry, The Joseph Black BuildingUniversity of GlasgowUniversity AvenueGlasgowG12 8QQUK
| | - Andrew Sutherland
- WestCHEM, School of Chemistry, The Joseph Black BuildingUniversity of GlasgowUniversity AvenueGlasgowG12 8QQUK
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34
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Baeten M, Maes BU. Carbon–Nitrogen Bond Formation Through Cross-Dehydrogenative Coupling Reactions. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2017. [DOI: 10.1016/bs.adomc.2017.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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35
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Wang Y, Wang Y, Zhang Q, Li D. Site-selective oxidative C–H sulfonylation of 8-acylaminoquinolines and anilides under metal-free conditions. Org Chem Front 2017. [DOI: 10.1039/c6qo00730a] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly site-selective oxidative C–H sulfonylation method for 8-acylaminoquinolines and anilides with sulfonyl chlorides has been developed, which provided C5-sulfonylated quinolines and para-sulfonylated anilides respectively.
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Affiliation(s)
- Yang Wang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
- Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy
| | - Ying Wang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
- Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy
| | - Qian Zhang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
- Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy
| | - Dong Li
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
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36
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Liang D, Sersen D, Yang C, Deschamps JR, Imler GH, Jiang C, Xue F. One-pot sequential reaction to 2-substituted-phenanthridinones from N-methoxybenzamides. Org Biomol Chem 2017; 15:4390-4398. [DOI: 10.1039/c7ob00649g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A one-pot synthesis of 2-bromo/chloro-phenanthridinones via an amidation of arenes followed by a regioselective halogenation reaction has been developed using a hypervalent iodine reagent.
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Affiliation(s)
- Dongdong Liang
- Department of Pharmaceutical Sciences
- University of Maryland School of Pharmacy
- Baltimore
- USA
| | - Deanna Sersen
- Department of Pharmaceutical Sciences
- University of Maryland School of Pharmacy
- Baltimore
- USA
| | - Chao Yang
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
| | | | | | - Chao Jiang
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Fengtian Xue
- Department of Pharmaceutical Sciences
- University of Maryland School of Pharmacy
- Baltimore
- USA
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37
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Sandtorv AH, Stuart DR. Metal-free Synthesis of Aryl Amines: Beyond Nucleophilic Aromatic Substitution. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610086] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - David R. Stuart
- Department of Chemistry; Portland State University; Portland OR 97201 USA
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38
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Sandtorv AH, Stuart DR. Metal-free Synthesis of Aryl Amines: Beyond Nucleophilic Aromatic Substitution. Angew Chem Int Ed Engl 2016; 55:15812-15815. [PMID: 27862773 DOI: 10.1002/anie.201610086] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Indexed: 11/07/2022]
Abstract
A mild and metal-free approach to C-N coupling is described that employs diaryliodonium salt electrophiles and secondary aliphatic amine nucleophiles. This reaction results in direct ipso-substitution of the iodonium moiety and unsymmetrical aryl(TMP)iodonium salts are primarily employed. Moreover, arene substituents and substitution patterns that currently pose a challenge to classical metal-free methods are accommodated and the alicyclic amine nucleophiles used here are unprecedented in other contemporary metal-free C-N coupling reactions.
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Affiliation(s)
| | - David R Stuart
- Department of Chemistry, Portland State University, Portland, OR, 97201, USA
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39
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Legnani L, Prina Cerai G, Morandi B. Direct and Practical Synthesis of Primary Anilines through Iron-Catalyzed C–H Bond Amination. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02576] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Luca Legnani
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Gabriele Prina Cerai
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Bill Morandi
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
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40
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Zhang C, Chou CJ. Metal-Free Direct Amidation of Naphthoquinones Using Hydroxamic Acids as an Amide Source: Application in the Synthesis of an HDAC6 Inhibitor. Org Lett 2016; 18:5512-5515. [PMID: 27759399 DOI: 10.1021/acs.orglett.6b02740] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel synthetic approach to amidoquinones by the reaction of naphthoquinones with hydroxamic acids under basic conditions was developed. The reaction is mild and operationally simple, and it affords high yields of amidoquinones. With this new method, a novel, very strong HDAC6 inhibitor, which showed high toxicity to AML cells, was successfully synthesized.
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Affiliation(s)
- Cheng Zhang
- Department of Applied Chemistry, China Agricultural University , 2 Yuanmingyuan West Road, Beijing 100193, China
| | - C James Chou
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina , 280 Calhoun Street, MSC140 QF307, Charleston, South Carolina 29425, United States
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41
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Wang Y, Wang Y, Guo Z, Zhang Q, Li D. Metal-Free Oxidative C−H Amination of 8-Acylaminoquinolines and Anilides with N
-Fluorobenzenesulfonimide. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600389] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yang Wang
- Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy; Hubei University of Technology; Wuhan 430068 China
- School of Materials and Chemical Engineering; Hubei University of Technology; Wuhan 430068 China
| | - Ying Wang
- Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy; Hubei University of Technology; Wuhan 430068 China
- School of Materials and Chemical Engineering; Hubei University of Technology; Wuhan 430068 China
| | - Zhenyu Guo
- Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy; Hubei University of Technology; Wuhan 430068 China
- School of Materials and Chemical Engineering; Hubei University of Technology; Wuhan 430068 China
| | - Qian Zhang
- Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy; Hubei University of Technology; Wuhan 430068 China
- School of Materials and Chemical Engineering; Hubei University of Technology; Wuhan 430068 China
| | - Dong Li
- School of Materials and Chemical Engineering; Hubei University of Technology; Wuhan 430068 China
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42
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Jin R, Patureau FW. Mild, Periodate-Mediated, Dehydrogenative C-N Bond Formation with Phenothiazines and Phenols. Org Lett 2016; 18:4491-3. [PMID: 27588328 DOI: 10.1021/acs.orglett.6b02223] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The dehydrogenative amination of phenols with phenothiazines was achieved in transition-metal-free conditions, utilizing cheap sodium periodate as oxidant, at low temperature. A significantly larger scope of phenol substrates was tolerated compared to previous methods.
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Affiliation(s)
- Rongwei Jin
- Fachbereich Chemie, Technische Universität Kaiserslautern , Erwin-Schrödinger Strasse Geb. 52, 67663 Kaiserslautern, Germany
| | - Frederic W Patureau
- Fachbereich Chemie, Technische Universität Kaiserslautern , Erwin-Schrödinger Strasse Geb. 52, 67663 Kaiserslautern, Germany
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43
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Li Z, Sun S, Qiao H, Yang F, Zhu Y, Kang J, Wu Y, Wu Y. Palladium-Catalyzed Regioselective C8–H Amination of 1-Naphthylamine Derivatives with Aliphatic Amines. Org Lett 2016; 18:4594-7. [DOI: 10.1021/acs.orglett.6b02243] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zexian Li
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Suyan Sun
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Huijie Qiao
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Fan Yang
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yu Zhu
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Jianxun Kang
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yusheng Wu
- Tetranov Biopharm, LLC, 75 Daxue
Road, Zhengzhou 450052, P. R. China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Zhengzhou 450001, P. R. China
| | - Yangjie Wu
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
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44
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Martínez C, Bosnidou AE, Allmendinger S, Muñiz K. Towards Uniform Iodine Catalysis: Intramolecular C-H Amination of Arenes under Visible Light. Chemistry 2016; 22:9929-32. [PMID: 27159628 DOI: 10.1002/chem.201602138] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Indexed: 11/07/2022]
Abstract
A photochemical catalytic amination of arenes is presented. The reaction proceeds under benign iodine catalysis in the presence of visible light as the initiator and provides access to a range of differently substituted arylamines. A total of 29 examples demonstrate the broad applicability of this mild oxidation method. The scope of the reaction could further be expanded to silyl-tethered derivatives, which undergo intramolecular amination upon formation of seven-membered heterocycles. Cleavage of the silicon tether provides access to the corresponding 3-substituted anilines.
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Affiliation(s)
- Claudio Martínez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Alexandra E Bosnidou
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Simon Allmendinger
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain. .,Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain.
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45
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Stavropoulos P. Metal-Catalyzed and Metal-Free Intermolecular Amination of Light Alkanes and Benzenes. COMMENT INORG CHEM 2016; 37:1-57. [PMID: 28855744 DOI: 10.1080/02603594.2016.1183487] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Pericles Stavropoulos
- Missouri University of Science and Technology, Department of Chemistry, 400 W11th St., Rolla, MO 65409
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46
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Funes‐Ardoiz I, Sameera WMC, Romero RM, Martínez C, Souto JA, Sampedro D, Muñiz K, Maseras F. DFT Rationalization of the Diverse Outcomes of the Iodine(III)‐Mediated Oxidative Amination of Alkenes. Chemistry 2016; 22:7545-53. [DOI: 10.1002/chem.201600415] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Ignacio Funes‐Ardoiz
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - W. M. C. Sameera
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Fukui Institute for Fundamental Chemistry Kyoto University 606-8103 Kyoto Japan
| | - R. Martín Romero
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Claudio Martínez
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - José A. Souto
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Diego Sampedro
- Departamento de Química Centro de Investigación en Síntesis Química (CISQ) Universidad de La Rioja C/Madre de Dios, 51 26006 Logroño Spain
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Catalan Institution for Research and Advanced Studies (ICREA) Pg. Lluís Companys 23 08010 Barcelona Spain
| | - Feliu Maseras
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Universitat Autònoma de Barcelona 08193 Bellaterra Spain
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47
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Abstract
The preparation, structure, and chemistry of hypervalent iodine compounds are reviewed with emphasis on their synthetic application. Compounds of iodine possess reactivity similar to that of transition metals, but have the advantage of environmental sustainability and efficient utilization of natural resources. These compounds are widely used in organic synthesis as selective oxidants and environmentally friendly reagents. Synthetic uses of hypervalent iodine reagents in halogenation reactions, various oxidations, rearrangements, aminations, C-C bond-forming reactions, and transition metal-catalyzed reactions are summarized and discussed. Recent discovery of hypervalent catalytic systems and recyclable reagents, and the development of new enantioselective reactions using chiral hypervalent iodine compounds represent a particularly important achievement in the field of hypervalent iodine chemistry. One of the goals of this Review is to attract the attention of the scientific community as to the benefits of using hypervalent iodine compounds as an environmentally sustainable alternative to heavy metals.
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Affiliation(s)
- Akira Yoshimura
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
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48
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Hypervalent Iodine-Induced Oxidative Couplings (New Metal-Free Coupling Advances and Their Applications in Natural Product Syntheses). HYPERVALENT IODINE CHEMISTRY 2016; 373:1-23. [DOI: 10.1007/128_2016_667] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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49
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Takayama J, Sakamoto T, Hayashi K, Xuan M, Suda M, Teramae H, Shimano Y. Oxidative Dearomatic Cyclization of N-Substituted Benzanilide Derivatives: Conformational Effect of Amide Groups on the Reaction. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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50
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Wan L, Qiao K, Sun XN, Di ZC, Fang Z, Li ZJ, Guo K. Benzylation of heterocyclic N-oxides via direct oxidative cross-dehydrogenative coupling with toluene derivatives. NEW J CHEM 2016. [DOI: 10.1039/c6nj02560a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel cross-dehydrogenative coupling (CDC) of heterocyclic N-oxides with toluene derivatives has been disclosed.
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Affiliation(s)
- L. Wan
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- 30 Puzhu South Road
- Nanjing
- P. R. China
| | - K. Qiao
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- 30 Puzhu South Road
- Nanjing
- P. R. China
| | - X. N. Sun
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- 30 Puzhu South Road
- Nanjing
- P. R. China
| | - Z. C. Di
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- 30 Puzhu South Road
- Nanjing
- P. R. China
| | - Z. Fang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- 30 Puzhu South Road
- Nanjing
- P. R. China
| | - Z. J. Li
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- 30 Puzhu South Road
- Nanjing
- P. R. China
| | - K. Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- 30 Puzhu South Road
- Nanjing
- P. R. China
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