1
|
Song T, Wang K, Yuan Q, Zhang W. Nickel-Catalyzed Hydroamination and Hydroalkoxylation of Enelactams with Unactivated Amines and Alcohols. Org Lett 2023; 25:6093-6098. [PMID: 37560920 DOI: 10.1021/acs.orglett.3c02341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Nickel-catalyzed hydroamination and hydroalkoxylation of enelactams with unactivated amines and alcohols are reported. This method showed good functional group tolerance and delivered the corresponding hydrofunctionalized products in good to excellent yields (≤98%). Furthermore, an intramolecular hydroalkoxylation of an enelactam was also realized, giving a cyclization product in a good yield. Mechanistic studies indicated that tBuI acts as a hydride donor and radical precursor, which is crucial for the success of the reaction.
Collapse
Affiliation(s)
- Tao Song
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Kuiyang Wang
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Qianjia Yuan
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| |
Collapse
|
2
|
van den Heuvel N, Mason SM, Mercado BQ, Miller SJ. Aspartyl β-Turn-Based Dirhodium(II) Metallopeptides for Benzylic C(sp 3)-H Amination: Enantioselectivity and X-ray Structural Analysis. J Am Chem Soc 2023; 145:12377-12385. [PMID: 37216431 PMCID: PMC10330621 DOI: 10.1021/jacs.3c03587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Amination of C(sp3)-H bonds is a powerful tool to introduce nitrogen into complex organic frameworks in a direct manner. Despite significant advances in catalyst design, full site- and enantiocontrol in complex molecular regimes remain elusive using established catalyst systems. To address these challenges, we herein describe a new class of peptide-based dirhodium(II) complexes derived from aspartic acid-containing β-turn-forming tetramers. This highly modular system can serve as a platform for the rapid generation of new chiral dirhodium(II) catalyst libraries, as illustrated by the facile synthesis of a series of 38 catalysts. Critically, we present the first crystal structure of a dirhodium(II) tetra-aspartate complex, which unveils retention of the β-turn conformation of the peptidyl ligand; a well-defined hydrogen-bonding network is evident, along with a near-C4 symmetry that renders the rhodium centers inequivalent. The utility of this catalyst platform is illustrated by the enantioselective amination of benzylic C(sp3)-H bonds, in which state-of-the-art levels of enantioselectivity up to 95.5:4.5 er are obtained, even for substrates that present challenges with previously reported catalyst systems. Additionally, we found these complexes to be competent catalysts for the intermolecular amination of N-alkylamides via insertion into the C(sp3)-H bond α to the amide nitrogen, yielding differentially protected 1,1-diamines. Of note, this type of insertion was also observed to occur on the amide functionalities of the catalyst itself in the absence of the substrate but did not appear to be detrimental to reaction outcomes when the substrate was present.
Collapse
Affiliation(s)
- Naudin van den Heuvel
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Savannah M. Mason
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Brandon Q. Mercado
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Scott J. Miller
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| |
Collapse
|
3
|
Wu L, Qu J, Chen Y. Merging Alkene Isomerization Enables Difunctionalization of Cyclic Enamines toward Ring-Fused Aminal Synthesis. Org Lett 2023; 25:992-997. [PMID: 36746651 DOI: 10.1021/acs.orglett.3c00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Here we report a Pd-catalyzed isomerization of alicyclic allyl amine to achieve the unprecedented α,β-difunctionalization of synthetically inaccessible trisubstituted cyclic enamine. The dual role of in situ formed enamine intermediate allows for the intermolecular formal [4 + 2] reaction with acrylamide or isatoic anhydride to simultaneously construct the C-C bond and C-N bond, thus realizing the expedient construction of [4.3.0]-aminal with excellent diastereoselectivity and high atom economy.
Collapse
Affiliation(s)
- Licheng Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jingping Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yifeng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| |
Collapse
|
4
|
Chen J, Wang H, Day CS, Martin R. Nickel-Catalyzed Site-Selective Intermolecular C(sp 3 )-H Amidation. Angew Chem Int Ed Engl 2022; 61:e202212983. [PMID: 36254803 DOI: 10.1002/anie.202212983] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Indexed: 11/06/2022]
Abstract
A nickel-catalyzed site-selective intermolecular amidation of saturated C(sp3 )-H bonds is reported. This mild protocol exhibits a predictable reactivity pattern to incorporate amide functions at C(sp3 )-H sites adjacent to nitrogen and oxygen atoms in either cyclic or acyclic frameworks, thus offering a complementary reactivity profile to existing oxidative-type processes or metal-catalyzed C(sp3 )-N bond-forming reactions operating via two-electron manifolds.
Collapse
Affiliation(s)
- Jinhong Chen
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, c/Marcel ⋅ lí Domingo, 1, 43007, Tarragona, Spain
| | - Hao Wang
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, c/Marcel ⋅ lí Domingo, 1, 43007, Tarragona, Spain
| | - Craig S Day
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, c/Marcel ⋅ lí Domingo, 1, 43007, Tarragona, Spain
| | - Ruben Martin
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| |
Collapse
|
5
|
Lee W, Kim D, Seo S, Chang S. Photoinduced α-C-H Amination of Cyclic Amine Scaffolds Enabled by Polar-Radical Relay. Angew Chem Int Ed Engl 2022; 61:e202202971. [PMID: 35403797 DOI: 10.1002/anie.202202971] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Indexed: 11/09/2022]
Abstract
Herein, we report a polar-radical relay strategy for α-C-H amination of cyclic amines with N-chloro-N-sodio-carbamates. The relay is initiated by in situ generation of cyclic iminium intermediate using N-iodosuccinimide (NIS) oxidant as an initiator, which then operates through a series of polar (addition and elimination) and radical (homolysis, hydrogen- and halogen atom transfer) reactions to enable the challenging C-N bond formation in a controlled manner. A broad range of α-amino cyclic amines were readily accessed with excellent regioselectivity, and the superb applicability was further demonstrated by functionalization of biologically relevant compounds.
Collapse
Affiliation(s)
- Wongyu Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Sangwon Seo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| |
Collapse
|
6
|
Lee W, Kim D, Seo S, Chang S. Photoinduced α‐C−H Amination of Cyclic Amine Scaffolds Enabled by Polar‐Radical Relay. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wongyu Lee
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Dongwook Kim
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Sangwon Seo
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Sukbok Chang
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| |
Collapse
|
7
|
Pan L, Elmasry J, Osccorima T, Cooke MV, Laulhé S. Photochemical Regioselective C(sp 3)-H Amination of Amides Using N-Haloimides. Org Lett 2021; 23:3389-3393. [PMID: 33856220 DOI: 10.1021/acs.orglett.1c00831] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A metal-free regioselective C(sp3)-H amination of amides using N-haloimides in the presence of lithium tert-butoxide and visible light is presented herein. This photoexcited approach is straightforward, and it aminates a wide variety of amides under mild conditions without the use of photocatalysts, external radical initiators, or oxidants. A halogen-bonded intermediate between the tert-butoxide base and the N-haloimide is proposed to be responsible for the increased photoreactivity. Calculations show that the formation of this electron donor-acceptor complex presents an exergonic energy profile.
Collapse
Affiliation(s)
- Lei Pan
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
| | - Joseph Elmasry
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
| | - Tomas Osccorima
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
| | - Maria Victoria Cooke
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
| | - Sébastien Laulhé
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
| |
Collapse
|
8
|
Rana S, Biswas JP, Paul S, Paik A, Maiti D. Organic synthesis with the most abundant transition metal–iron: from rust to multitasking catalysts. Chem Soc Rev 2021; 50:243-472. [DOI: 10.1039/d0cs00688b] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The promising aspects of iron in synthetic chemistry are being explored for three-four decades as a green and eco-friendly alternative to late transition metals. This present review unveils these rich iron-chemistry towards different transformations.
Collapse
Affiliation(s)
- Sujoy Rana
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | | | - Sabarni Paul
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Aniruddha Paik
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Debabrata Maiti
- Department of Chemistry
- IIT Bombay
- Mumbai-400076
- India
- Tokyo Tech World Research Hub Initiative (WRHI)
| |
Collapse
|
9
|
Design, synthesis and antifungal activity of pterolactam-inspired amide Mannich bases. Fitoterapia 2020; 143:104581. [DOI: 10.1016/j.fitote.2020.104581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/26/2020] [Accepted: 03/26/2020] [Indexed: 11/20/2022]
|
10
|
Kim SH, Söhnel T, Sperry J. Structural Revision of Pseudocerosine and Validation of a Biosynthetic Proposal for E-ring Formation in Pyridoacridine Alkaloids. Org Lett 2020; 22:3495-3498. [PMID: 32283031 DOI: 10.1021/acs.orglett.0c00953] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Pseudocerosine is the pigment responsible for the bright blue color of the rim on the marine flatworm Pseudoceros indicus. Compelling evidence is provided herein that pseudocerosine is actually a pyridoacridine, not an azepinoindole as initially proposed. This study also validates a biosynthesis proposal for E-ring formation in this revered class of alkaloids, and pseudocerosine (along with its intermediates described herein) is a new branch on the pyridoacridine family tree.
Collapse
Affiliation(s)
- Se Hun Kim
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| |
Collapse
|
11
|
Bertamino A, Lauro G, Ostacolo C, Di Sarno V, Musella S, Ciaglia T, Campiglia P, Bifulco G, Gomez-Monterrey IM. Ring-Fused Cyclic Aminals from Tetrahydro-β-carboline-Based Dipeptide Compounds. J Org Chem 2017; 82:12014-12027. [PMID: 29091729 DOI: 10.1021/acs.joc.7b01656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An acid- and oxidant-promoted intramolecular cyclization of a tetrahydro-β-carboline-based dipeptide has been developed to prepare new indole-fused aminoacetals. This approach involves N-acyliminium formation from readily available precursors and cyclization under mild reaction conditions. The diastereoselectivity in the formation of the products is influenced by the specific substituents of the starting reagents, which has been rationalized analyzing the energy profile of the related reactions and the relative stability of the proposed structures based on DFT computational methods.
Collapse
Affiliation(s)
- Alessia Bertamino
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Gianluigi Lauro
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Carmine Ostacolo
- Dipartimento di Farmacia, Università di Napoli "Federico II" , Via Montesano 49, 80131 Napoli, Italy
| | - Veronica Di Sarno
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Simona Musella
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Tania Ciaglia
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Pietro Campiglia
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy.,Fondazione EBRIS, Via Salvatore de Renzi, 3, 84125 Salerno, Italy
| | - Giuseppe Bifulco
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Isabel M Gomez-Monterrey
- Dipartimento di Farmacia, Università di Napoli "Federico II" , Via Montesano 49, 80131 Napoli, Italy
| |
Collapse
|
12
|
Ziyaei Halimehjani A, Goudarzi M, Lotfi Nosood Y. Alkylation of aromatic amines by tert-enamides: Direct access to protected aminals. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1363241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
13
|
Gong M, Huang JM. Electrochemical Oxidative C−H/N−H Coupling between γ-Lactams and Anilines. Chemistry 2016; 22:14293-6. [DOI: 10.1002/chem.201602454] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Ming Gong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou Guangdong 510640 P. R. China
| | - Jing-Mei Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou Guangdong 510640 P. R. China
| |
Collapse
|
14
|
Pandey G, Laha R, Singh D. Benzylic C(sp(3))-H Functionalization for C-N and C-O Bond Formation via Visible Light Photoredox Catalysis. J Org Chem 2016; 81:7161-71. [PMID: 27269307 DOI: 10.1021/acs.joc.6b00970] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A visible light mediated highly selective benzylic C-H bond functionalization for intermolecular C-N and C-O bond formation is reported. This cross-dehydrogenative coupling reaction demonstrates a straightforward protocol for incorporating the heteroaromatics to the benzylic position. Benzylic oxidation of various alkyl aryls to corresponding carbonyl compounds has also been reported.
Collapse
Affiliation(s)
- Ganesh Pandey
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow 226014, India
| | - Ramkrishna Laha
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow 226014, India
| | - Deepak Singh
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences , Lucknow 226014, India
| |
Collapse
|
15
|
Fe-Catalyzed Cross-Dehydrogenative Coupling Reactions. Top Curr Chem (Cham) 2016; 374:38. [DOI: 10.1007/s41061-016-0038-y] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 05/19/2016] [Indexed: 12/30/2022]
|
16
|
Xie J, Zhu C. Recent Advances in Non-directed C(sp3)–H Bond Functionalization. SPRINGERBRIEFS IN MOLECULAR SCIENCE 2016. [DOI: 10.1007/978-3-662-49496-7_2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
17
|
Evoniuk CJ, Hill SP, Hanson K, Alabugin IV. Double C–H amination by consecutive SET oxidations. Chem Commun (Camb) 2016; 52:7138-41. [DOI: 10.1039/c6cc03106d] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A new method for intramolecular C–H oxidative amination is based on a FeCl3-mediated oxidative reaction of anilines with activated sp3 C–H bonds.
Collapse
Affiliation(s)
| | - Sean P. Hill
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Kenneth Hanson
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| |
Collapse
|
18
|
Wang R, Bao W. Iron(III) acetylacetonate catalyzed tandem oxidative addition/cyclization of simple amides with alkenes: a convenient process to synthesize 3-amido oxindoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
19
|
Affiliation(s)
- Ingmar Bauer
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| |
Collapse
|
20
|
Liu LW, Wang ZZ, Zhang HH, Wang WS, Zhang JZ, Tang Y. Iron-catalyzed aerobic C–H functionalization of pyrrolones. Chem Commun (Camb) 2015; 51:9531-4. [DOI: 10.1039/c5cc01425e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The aerobic oxidation of pyrrolones catalyzed by Fe(OTf)3 to form reactive N-acyliminium ion intermediates that undergo nucleophilic additions to give the corresponding products is described.
Collapse
Affiliation(s)
- Li-wei Liu
- School of Pharmaceutical Science and Technology
- Key Laboratory for Modern Drug Delivery & High-Efficiency
- Tianjin University
- Tianjin
- P. R. China
| | - Zhen-zhen Wang
- School of Pharmaceutical Science and Technology
- Key Laboratory for Modern Drug Delivery & High-Efficiency
- Tianjin University
- Tianjin
- P. R. China
| | - Hui-hui Zhang
- School of Pharmaceutical Science and Technology
- Key Laboratory for Modern Drug Delivery & High-Efficiency
- Tianjin University
- Tianjin
- P. R. China
| | - Wan-shu Wang
- School of Pharmaceutical Science and Technology
- Key Laboratory for Modern Drug Delivery & High-Efficiency
- Tianjin University
- Tianjin
- P. R. China
| | - Ji-zong Zhang
- School of Pharmaceutical Science and Technology
- Key Laboratory for Modern Drug Delivery & High-Efficiency
- Tianjin University
- Tianjin
- P. R. China
| | - Yu Tang
- School of Pharmaceutical Science and Technology
- Key Laboratory for Modern Drug Delivery & High-Efficiency
- Tianjin University
- Tianjin
- P. R. China
| |
Collapse
|
21
|
Liu Y, Chen GQ, Tse CW, Guan X, Xu ZJ, Huang JS, Che CM. [Fe(F20TPP)Cl]-Catalyzed Amination with Arylamines and {[Fe(F20TPP)(NAr)](PhINAr)} + . Intermediate Assessed by High-Resolution ESI-MS and DFT Calculations. Chem Asian J 2014; 10:100-5. [DOI: 10.1002/asia.201402580] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Indexed: 01/12/2023]
|
22
|
Salamone M, Milan M, DiLabio GA, Bietti M. Absolute Rate Constants for Hydrogen Atom Transfer from Tertiary Amides to the Cumyloxyl Radical: Evaluating the Role of Stereoelectronic Effects. J Org Chem 2014; 79:7179-84. [DOI: 10.1021/jo5013459] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Michela Salamone
- Dipartimento
di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica 1, I-00133 Rome, Italy
| | - Michela Milan
- Dipartimento
di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica 1, I-00133 Rome, Italy
| | - Gino A. DiLabio
- National
Institute for Nanotechnology, National Research Council of Canada, 11421
Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2M9
- Department
of Chemistry, University of British Columbia, Okanagan, 3333 University Way, Kelowna, British Columbia, Canada V1 V 1 V7
| | - Massimo Bietti
- Dipartimento
di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica 1, I-00133 Rome, Italy
| |
Collapse
|