1
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Galicia J, McDonald NR, Bennett CW, He J, Glossbrenner MD, Romero EA. Exogenous photocatalyst-free aryl radical generation from diaryliodonium salts and use in metal-catalyzed C-H arylation. Chem Commun (Camb) 2024. [PMID: 38884327 DOI: 10.1039/d4cc01259c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
We demonstrate (1) detectable halogen bonding is not critical for enabling light-driven radical generation from diaryliodonium salts and (2) radicals generated by this route can be captured by transition-metals for C-H arylation reactions. These results are the first step toward developing new metal-catalyzed aryl radical couplings without exogenous photocatalysts.
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Affiliation(s)
- Jonathan Galicia
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0309, USA.
| | - Nicholas R McDonald
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0309, USA.
| | - Christopher W Bennett
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0309, USA.
| | - Jiajun He
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0309, USA.
| | - Mark D Glossbrenner
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0309, USA.
| | - Erik A Romero
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0309, USA.
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2
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Das A, Justin Thomas KR. Generation and Application of Aryl Radicals Under Photoinduced Conditions. Chemistry 2024; 30:e202400193. [PMID: 38546345 DOI: 10.1002/chem.202400193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Indexed: 04/26/2024]
Abstract
Photoinduced aryl radical generation is a powerful strategy in organic synthesis that facilitates the formation of diverse carbon-carbon and carbon-heteroatom bonds. The synthetic applications of photoinduced aryl radical formation in the synthesis of complex organic compounds, including natural products, physiologically significant molecules, and functional materials, have received immense attention. An overview of current developments in photoinduced aryl radical production methods and their uses in organic synthesis is given in this article. A generalized idea of how to choose the reagents and approach for the generation of aryl radicals is described, along with photoinduced techniques and associated mechanistic insights. Overall, this article offers a critical assessment of the mechanistic results as well as the selection of reaction parameters for specific reagents in the context of radical cascades, cross-coupling reactions, aryl radical functionalization, and selective C-H functionalization of aryl substrates.
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Affiliation(s)
- Anupam Das
- Organic Materials Laboratory, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - K R Justin Thomas
- Organic Materials Laboratory, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
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3
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Antoniou IM, Ioannou N, Panagiotou N, Georgiades SN. LED-induced Ru-photoredox Pd-catalyzed C-H arylation of (6-phenylpyridin-2-yl)pyrimidines and heteroaryl counterparts. RSC Adv 2024; 14:12179-12191. [PMID: 38628490 PMCID: PMC11019410 DOI: 10.1039/d4ra02173h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024] Open
Abstract
N-heterocycles are essential building blocks and scaffolds in medicinal chemistry. A Pd-catalyzed, Ru-photoredox-mediated C-H arylation is applied herein, for converting a series of functionality-inclusive (6-phenylpyridin-2-yl)pyrimidines to single arylated derivatives, using phenyldiazonium tetrafluoroborate as aryl source. This green chemistry-compliant transformation is induced by LED light. The drug-like modular substrates are constructed via combination of Biginelli multi-component condensation and Suzuki C-C cross-coupling, in order to strategically install, adjacent to the Ph-ring intended to undergo C-H arylation, a (6-pyridin-2-yl)pyrimidine that plays the role of a chelating directing moiety for the C-H arylation catalyst. The scope has been demonstrated on a series of 26 substrates, comprising diverse Ph-ring substituents and substitution patterns, as well as with 13 different aryl donors. Substrates in which the Ph-ring (arylation acceptor) was replaced by an electron-rich heteroaryl counterpart (2-/3-thiophene or -benzofuran) have also been examined and found to undergo arylation regioselectively. End-product conformations afford interesting motifs for occupying 3D chemical space, as implied by single-crystal X-ray diffraction, which has allowed the elucidation of six structures of aryl derivatives and one of an unprecedented pyrimidine-pyridine-benzofuran carbopalladated complex, believed to be a C-H activation derivative.
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Affiliation(s)
- Ioakeim M Antoniou
- Department of Chemistry, University of Cyprus 1 Panepistimiou Avenue, Aglandjia 2109 Nicosia Cyprus
| | - Natalia Ioannou
- Department of Chemistry, University of Cyprus 1 Panepistimiou Avenue, Aglandjia 2109 Nicosia Cyprus
| | - Nikos Panagiotou
- Department of Chemistry, University of Cyprus 1 Panepistimiou Avenue, Aglandjia 2109 Nicosia Cyprus
| | - Savvas N Georgiades
- Department of Chemistry, University of Cyprus 1 Panepistimiou Avenue, Aglandjia 2109 Nicosia Cyprus
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4
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Waddell PM, Tian L, Scavuzzo AR, Venigalla L, Scholes GD, Carrow BP. Visible light-induced palladium-carbon bond weakening in catalytically relevant T-shaped complexes. Chem Sci 2023; 14:14217-14228. [PMID: 38098701 PMCID: PMC10717500 DOI: 10.1039/d3sc02588h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 10/26/2023] [Indexed: 12/17/2023] Open
Abstract
Triggering one-electron redox processes during palladium catalysis holds the potential to unlock new reaction mechanisms and synthetic methods not previously accessible in the typical two-electron reaction manifolds that dominate palladium catalysis. We report that T-shaped organopalladium(ii) complexes coordinated by a bulky monophosphine, a class of organometallic intermediate featured in a range of contemporary catalytic reactions, undergo blue light-promoted bond weakening leading to mild and efficient homolytic cleavage of strong Pd(ii)-C(sp3) bonds under ambient conditions. The origin of light-triggered radical formation in these systems, which lack an obvious ligand-based chromophore (i.e., π-systems), was investigated using a combination of DFT calculations, photoactinometry, and transient absorption spectroscopy. The available data suggest T-shaped organopalladium(ii) complexes manifest unusual blue light-accessible Pd-to-C(sp3) transition. The quantum efficiency and excited state lifetime of this process were unexpectedly superior compared to a prototypical (α-diimine)Pd(ii) complex featuring a low-lying, ligand-centered LUMO (π*). These results suggest coordinatively-unsaturated organopalladium(ii) compounds, catalysts in myriad catalytic processes, have untapped potential for one-electron reactivity under visible light excitation.
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Affiliation(s)
- Peter M Waddell
- Department of Chemistry, Princeton University Princeton NJ 08544 USA
| | - Lei Tian
- Department of Chemistry, Princeton University Princeton NJ 08544 USA
| | | | - Lalu Venigalla
- Department of Chemistry, University of Houston Houston TX 77204 USA
| | - Gregory D Scholes
- Department of Chemistry, Princeton University Princeton NJ 08544 USA
| | - Brad P Carrow
- Department of Chemistry, University of Houston Houston TX 77204 USA
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5
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Meher P, Panda SP, Mahapatra SK, Thombare KR, Roy L, Murarka S. A General Electron Donor-Acceptor Photoactivation Platform of Diaryliodonium Reagents: Arylation of Heterocycles. Org Lett 2023; 25:8290-8295. [PMID: 37962249 DOI: 10.1021/acs.orglett.3c03365] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
We report a photoredox system comprising sodium iodide, triphenyl phosphine, and N,N,N',N'-tetramethylethylenediamine (TMEDA) that can form a self-assembled tetrameric electron donor-acceptor (EDA) complex with diaryliodonium reagents (DAIRs) and furnish aryl radicals upon visible light irradiation. This practical mode of activation of DAIRs enables arylation of an array of heterocycles under mild conditions to provide the respective heteroaryl-(hetero)aryl assembly in moderate to excellent yields. Detailed mechanistic investigations comprising photophysical and DFT studies provided insight into the reaction mechanism.
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Affiliation(s)
- Prahallad Meher
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
| | - Satya Prakash Panda
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
| | - Sanat Kumar Mahapatra
- Institute of Chemical Technology Mumbai, IOC Odisha Campus Bhubaneswar, Bhubaneswar 751013, India
| | - Karan Ramdas Thombare
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
| | - Lisa Roy
- Institute of Chemical Technology Mumbai, IOC Odisha Campus Bhubaneswar, Bhubaneswar 751013, India
| | - Sandip Murarka
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
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6
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Senapati S, Parida SK, Karandikar SS, Murarka S. Organophotoredox-Catalyzed Arylation and Aryl Sulfonylation of Morita-Baylis-Hillman Acetates with Diaryliodonium Reagents. Org Lett 2023; 25:7900-7905. [PMID: 37882475 DOI: 10.1021/acs.orglett.3c03146] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
We report an organophotoredox-catalyzed stereoselective allylic arylation of MBH acetates with a palette of diaryliodonium triflates (DAIRs) to provide the corresponding trisubstituted alkenes in moderate to good yields. The method could be extended to three-component coupling involving 1,4-diazabicyclo[2.2.2]octane bis(sulfur dioxide) adduct (DABSO) as a sulfur dioxide surrogate for the synthesis of biologically relevant allylic sulfones. Both of these reactions were carried out under mild conditions featuring broad scope, robustness, and appreciable functional group tolerance.
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Affiliation(s)
- Sudip Senapati
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India
| | - Sushanta Kumar Parida
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India
| | - Sayali Sunil Karandikar
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India
| | - Sandip Murarka
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India
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7
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Meher P, Samanta RK, Manna S, Murarka S. Visible light photoredox-catalyzed arylative cyclization to access benzimidazo[2,1- a]isoquinolin-6(5 H)-ones. Chem Commun (Camb) 2023; 59:6092-6095. [PMID: 37128950 DOI: 10.1039/d3cc00605k] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A photoredox-catalyzed arylative radical cascade involving N-acryloyl-2-arylbenzoimidazoles and diaryliodonium triflates leading to the formation of a broad array of pharmaceutically important arylated-benzimidazo[2,1-a]isoquinolin-6(5H)-ones is described. Importantly, the synthesized benzimidazoisoquinolinones are amenable for further synthetic manipulation and allowed efficient access to benzimidazo-fused polycyclic heterocycles.
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Affiliation(s)
- Prahallad Meher
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India.
| | - Raj Kumar Samanta
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India.
| | - Sourav Manna
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India.
| | - Sandip Murarka
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India.
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8
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Caiger L, Zhao H, Constantin T, Douglas JJ, Leonori D. The Merger of Aryl Radical-Mediated Halogen-Atom Transfer (XAT) and Copper Catalysis for the Modular Cross-Coupling-Type Functionalization of Alkyl Iodides. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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9
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Saikia RA, Talukdar K, Pathak D, Sarma B, Thakur AJ. Utilization of Aryl(TMP)iodonium Salts for Copper-Catalyzed N-Arylation of Isatoic Anhydrides: An Avenue to Fenamic Acid Derivatives and N,N'-Diarylindazol-3-ones. J Org Chem 2023; 88:3567-3581. [PMID: 36827541 DOI: 10.1021/acs.joc.2c02762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Herein, we report a general method for copper-catalyzed N-arylation of isatoic anhydrides with unsymmetrical iodonium salts at room temperature. The developed catalytic protocol is mild and operationally simple, and aryl(TMP)iodonium trifluoroacetate is employed as the arylating partner. The methodology offers the broad applicability of both structurally and electronically diverse aryl groups from aryl(TMP)iodonium salts to access N-arylated isatoic anhydrides in moderate to excellent yields (53-92%). Moreover, the substituted isatoic anhydrides are equally compatible with the protocol too. To demonstrate the synthetic utilities of the N-arylation process, we also report an alternative approach for biologically relevant fenamic acid derivatives and N,N'-diarylindazol-3-ones in a one-pot step economical system. In addition, the scale-up synthesis of flufenamic acid is also illustrated.
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Affiliation(s)
- Raktim Abha Saikia
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Khanindra Talukdar
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Debabrat Pathak
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Ashim Jyoti Thakur
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
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10
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Chen LM, Zhou C, Li J, Li J, Guo XQ, Kang TR. Copper-catalyzed reactions of α,β-unsaturated N-tosylhydrazones with diaryliodonium salts to construct N-arylpyrazoles and diaryl sulfones. Org Biomol Chem 2022; 20:7011-7016. [PMID: 36000782 DOI: 10.1039/d2ob01338j] [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
Herein, an economical copper-catalyzed reaction of α,β-unsaturated N-tosylhydrazones with diaryliodonium salts to construct both N-arylpyrazoles and diaryl sulfones has been developed. Both the p-toluenesulfonyl anion and the 3-arylpyrazole intermediates were formed in situ from N-tosylhydrazones. Subsequently, the former reacted rapidly with diaryliodonium salts to give diaryl sulfones and aryl iodide intermediates, and the latter reacted with aryl iodide to give N-arylpyrazoles under copper-catalyzed conditions. Using unsymmetrical mesityl phenyliodonium salts as substrates, mesityl p-toluenesulfide was obtained as the major product. This reaction took full advantage of the "waste" part of substrates to form an extra diaryl sulfone.
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Affiliation(s)
- Lian-Mei Chen
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Chuang Zhou
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Jing Li
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Jun Li
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Xiao-Qiang Guo
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Tai-Ran Kang
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
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11
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Saha PS, Gopinath P. Dual Palladium‐Photoredox catalyzed C‐H functionalization. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200733] [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)
| | - Purushothaman Gopinath
- Indian Institute of Science Education and Research Tirupati Chemistry Karkambadi Road 517507 Tirupati INDIA
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12
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Samanta RK, Meher P, Murarka S. Visible Light Photoredox-Catalyzed Direct C-H Arylation of Quinoxalin-2(1 H)-ones with Diaryliodonium Salts. J Org Chem 2022; 87:10947-10957. [PMID: 35925769 DOI: 10.1021/acs.joc.2c01234] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A photoredox-catalyzed direct arylation of quinoxalin-2-(1H)-ones using diaryliodonium triflates as the convenient, stable, and cheap aryl source is described. A broad variety of quinoxalin-2-(1H)-ones are shown to react with structurally and electronically diverse diaryliodonium triflates, allowing efficient access to a wide variety of pharmaceutically important 3-arylquinoxalin-2-(1H)-ones. The presented method is attractive with regard to operational simplicity, mild conditions, broad scope, scalability, and high functional group tolerance.
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Affiliation(s)
- Raj K Samanta
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
| | - Prahallad Meher
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
| | - Sandip Murarka
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, Rajasthan 342037, India
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13
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Wang X, Meng J, Zhao D, Tang S, Sun K. Synthesis and applications of thiosulfonates and selenosulfonates as free-radical reagents. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.08.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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14
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Maleki B, Nejat R, Vahdani Z. Three-dimensional graphene–magnetic Organometallic nanohybrid as High‐Performance Visible Light Photocatalyst for the C-C Coupling Reactions. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2020.1871035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Behrooz Maleki
- Department of Chemistry, Hakim Sabzevari University, Sabzevar, Iran
| | - Razieh Nejat
- Chemistry Department, Faculty of science, Kosar University of Bojnord, Bojnord, Iran
| | - Zahra Vahdani
- Department of Chemistry, Hakim Sabzevari University, Sabzevar, Iran
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15
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Wang X, Xun X, Song H, Liu Y, Wang Q. Palladium Metallaphotoredox-Catalyzed 2-Arylation of Indole Derivatives. Org Lett 2022; 24:4580-4585. [PMID: 35727313 DOI: 10.1021/acs.orglett.2c01674] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Given that biaryl motifs are found in many useful molecules, including pesticides, pharmaceuticals, functional materials, and polymers, the development of methods for their construction is important. Herein, we report a two-step method for C(sp2)-H/C(sp2)-H cross-coupling reactions to synthesize 2-arylindole derivatives by combining palladium catalysis and photocatalysis. This mild, dual-catalysis method showed good functional group tolerance and a wide substrate scope and could be used for late-stage functionalization of oligopeptides, drugs, and natural products.
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Affiliation(s)
- Xinmou Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
| | - Xiwei Xun
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
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16
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Sarkar T, Shah TA, Maharana PK, Debnath B, Punniyamurthy T. Dual Metallaphotoredox Catalyzed Directed C(sp2)‐H Functionalization: Access to C‐C/C‐Heteroatom Bonds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tanumay Sarkar
- IIT Guwahati: Indian Institute of Technology Guwahati Chemistry INDIA
| | | | | | - Bijoy Debnath
- Indian Institute of Technology Guwahati Chemistry INDIA
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17
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Xu YX, Liang YQ, Cai ZJ, Ji SJ. Ruthenium(II)-Catalyzed Chelation-Assisted Desulfitative Arylation of Benzo[h]quinolines with Arylsulfonyl Chlorides. Org Lett 2022; 24:2601-2606. [PMID: 35357174 DOI: 10.1021/acs.orglett.2c00542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, a novel chelation-assisted C-H arylation reaction of benzo[h]quinoline is described. This transformation, using [RuCl2(p-cymene)]2 as the catalyst and cheap and easily accessible arylsulfonyl chlorides as the arylation source, featured simple reaction conditions, a broad substrate scope, and functional group tolerance. The successful application of some bioactive-molecule-based sulfonyl chlorides further highlighted the potential utility and importance of this desulfitative C-H arylation protocol.
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Affiliation(s)
- Yi-Xin Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Yu-Qing Liang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Zhong-Jian Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.,Suzhou Baolidi Functional Materials Research Institute, Suzhou 215144, China
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18
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Grover J, Prakash G, Goswami N, Maiti D. Traditional and sustainable approaches for the construction of C–C bonds by harnessing C–H arylation. Nat Commun 2022; 13:1085. [PMID: 35228555 PMCID: PMC8885660 DOI: 10.1038/s41467-022-28707-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 01/27/2022] [Indexed: 12/18/2022] Open
Abstract
Biaryl scaffolds are found in natural products and drug molecules and exhibit a wide range of biological activities. In past decade, the transition metal-catalyzed C–H arylation reaction came out as an effective tool for the construction of biaryl motifs. However, traditional transition metal-catalyzed C–H arylation reactions have limitations like harsh reaction conditions, narrow substrate scope, use of additives etc. and therefore encouraged synthetic chemists to look for alternate greener approaches. This review aims to draw a general overview on C–H bond arylation reactions for the formation of C–C bonds with the aid of different methodologies, majorly highlighting on greener and sustainable approaches. Transition-metal-catalyzed C–H arylations are an effective tool for the construction of biaryl motifs in an efficient and selective manner. Here the authors provide an overview of the state-of-the-art of the field and perspectives on emerging directions toward increased sustainability.
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19
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Li C, Zhang Y, Sun W. Nickel-Catalyzed Paired Electrochemical Cross-Coupling of Aryl Halides with Nucleophiles. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1581-0934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractElectrochemistry has recently gained increased attention as a versatile strategy for achieving challenging transformations at the forefront of synthetic organic chemistry. However, most electrochemical transformations only employ one electrode (anodic oxidation or cathodic reduction) to afford the desired products, while the chemistry that occurs at the counter electrode yields stoichiometric waste. In contrast, paired electrochemical reactions can synchronously utilize the anodic and cathodic reactions to deliver the desired product, thus improving the atom economy and energy efficiency of the electrolytic process. This review gives an overview of recent advances in nickel-catalyzed paired electrochemical cross-coupling reactions of aryl/alkenyl halides with different nucleophiles.1 Introduction2 Nickel-Catalyzed Cross-Coupling Reactions2.1 C–C Bond Formation2.2 C–N Bond Formation2.3 C–S/O Bond Formation2.4 C–P Bond Formation3 Conclusion
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Affiliation(s)
- Chao Li
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University
- National Institute of Biological Sciences
| | - Yong Zhang
- Academy for Advanced Interdisciplinary Studies, Peking University
- National Institute of Biological Sciences
| | - Wenxuan Sun
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University
- National Institute of Biological Sciences
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20
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Chakraborty P, Mandal R, Paira S, Sundararaju B. C-H bond functionalization by dual catalysis: merging of high-valent cobalt and photoredox catalysis. Chem Commun (Camb) 2021; 57:13075-13083. [PMID: 34779804 DOI: 10.1039/d1cc04872d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The merger of transition metal catalysis and photocatalysis has emerged as a versatile platform that opened the gateway to diverse low-energy pathways for several synthetic transformations. However, amidst the first-row transition metals, directed C-H bond functionalization mediated by high-valent cobalt catalysis has advanced with rising momentum owing to its unique reactivity and the ability to participate in both one- and two-electron transfer reactions. However, the use of expensive, privileged Cp* ligands or use of stoichiometric silver(I) or manganese(III) is unavoidable. Despite significant advances in their respective fields, the combination of these two "green" approaches to further the vested interest of the scientific research community towards the development of ecofriendly and sustainable protocols is noticeably limited. Thus, the methodology based on high-cobalt-photoredox dual-catalytic strategy has high dormant potential and is worthy to explore. Herein, we highlight the recent advances in the high-valent cobalt-catalyzed sustainable catalytic approach by harnessing light energy for oxidative C-H bond functionalization. With this, we hope to inspire the development of unexplored cobalt-photoredox-catalyzed reactions with improved efficiency and selectivity.
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Affiliation(s)
- Priyanka Chakraborty
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh - 208016, India.
| | - Rajib Mandal
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh - 208016, India.
| | - Soumen Paira
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh - 208016, India.
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh - 208016, India.
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21
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Chan AY, Perry IB, Bissonnette NB, Buksh BF, Edwards GA, Frye LI, Garry OL, Lavagnino MN, Li BX, Liang Y, Mao E, Millet A, Oakley JV, Reed NL, Sakai HA, Seath CP, MacMillan DWC. Metallaphotoredox: The Merger of Photoredox and Transition Metal Catalysis. Chem Rev 2021; 122:1485-1542. [PMID: 34793128 DOI: 10.1021/acs.chemrev.1c00383] [Citation(s) in RCA: 439] [Impact Index Per Article: 146.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The merger of photoredox catalysis with transition metal catalysis, termed metallaphotoredox catalysis, has become a mainstay in synthetic methodology over the past decade. Metallaphotoredox catalysis has combined the unparalleled capacity of transition metal catalysis for bond formation with the broad utility of photoinduced electron- and energy-transfer processes. Photocatalytic substrate activation has allowed the engagement of simple starting materials in metal-mediated bond-forming processes. Moreover, electron or energy transfer directly with key organometallic intermediates has provided novel activation modes entirely complementary to traditional catalytic platforms. This Review details and contextualizes the advancements in molecule construction brought forth by metallaphotocatalysis.
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Affiliation(s)
- Amy Y Chan
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Ian B Perry
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Noah B Bissonnette
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Benito F Buksh
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Grant A Edwards
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Lucas I Frye
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Olivia L Garry
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Marissa N Lavagnino
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Beryl X Li
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Yufan Liang
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Edna Mao
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Agustin Millet
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - James V Oakley
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Nicholas L Reed
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Holt A Sakai
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Ciaran P Seath
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - David W C MacMillan
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
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22
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Abstract
The fields of C-H functionalization and photoredox catalysis have garnered enormous interest and utility in the past several decades. Many different scientific disciplines have relied on C-H functionalization and photoredox strategies including natural product synthesis, drug discovery, radiolabeling, bioconjugation, materials, and fine chemical synthesis. In this Review, we highlight the use of photoredox catalysis in C-H functionalization reactions. We separate the review into inorganic/organometallic photoredox catalysts and organic-based photoredox catalytic systems. Further subdivision by reaction class-either sp2 or sp3 C-H functionalization-lends perspective and tactical strategies for use of these methods in synthetic applications.
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Affiliation(s)
- Natalie Holmberg-Douglas
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - David A Nicewicz
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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23
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Sengoku T, Ogawa D, Iwama H, Inuzuka T, Yoda H. A heavy-metal-free desulfonylative Giese-type reaction of benzothiazole sulfones under visible-light conditions. Chem Commun (Camb) 2021; 57:9858-9861. [PMID: 34490858 DOI: 10.1039/d1cc03833h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A visible-light-induced desulfonylative Giese-type reaction has been developed. Essential to the success is the employment of Hantzsch ester to activate benzothiazole sulfones without any heavy-metal additives. Not only benzylic benzothiazole sulfones but also alkyl ones were viable substrates and reacted with electron-deficient alkenes and a propiol amide.
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Affiliation(s)
- Tetsuya Sengoku
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan.
| | - Daichi Ogawa
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan.
| | - Haruka Iwama
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan.
| | - Toshiyasu Inuzuka
- Division of Instrumental Analysis, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Hidemi Yoda
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan.
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24
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N-Directed Pd-Catalyzed Photoredox-Mediated C–H Arylation for Accessing Phenyl-Extended Analogues of Biginelli/Suzuki-Derived Ethyl 4-Methyl-2,6-diphenylpyrimidine-5-carboxylates. Catalysts 2021. [DOI: 10.3390/catal11091071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The availability and application of direct, functional group-compatible C–H activation methods for late-stage modification of small-molecule bioactives and other valuable materials remains an ongoing challenge in organic synthesis. In the current study, we demonstrate that a LED-activated, photoredox-mediated, Pd(OAc)2-catalyzed C–H arylation, employing a phenyldiazonium aryl source and either tris(2,2′-bipyridine)ruthenium(II) or (2,2′-bipyridine)bis[3,5-di-fluoro-2-[5-(trifluoromethyl)-2-pyridinyl-kN][phenyl-kC]iridium(III) as photoredox initiator, may successfully produce unprecedented mono- and bis-phenyl derivatives of functionality-rich 2,6-diphenylpyrimidine substrates at room temperature. The series of 19 substrates employed herein, which share the biologically-relevant 4-methyl-2,6-diphenylpyrimidine-5-carboxylate scaffold, were generated via a synthetic route involving (3-component) Biginelli condensation, oxidative dehydrogenation of the obtained 3,4-dihydropyrimidin-2(1H)-one to 2-hydroxypyrimidine, O-sulfonylation, and Suzuki-Miyaura C–C cross-coupling. Submission of these substrates to pyrimidine-N-atom-directed C–H arylation conditions led to regioselective phenylation at the ortho site(s) of the pyrimidine-C2-connected phenyl ring, revealing substituent-dependent electronic and steric effects. A focused library of 18 mono- and 10 bis-phenyl derivatives was generated. Its members exhibit interesting 3D and peripheral substitution features that render them promising for evaluation in drug discovery efforts.
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25
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Zhang HH, Tang M, Zhao JJ, Song C, Yu S. Enantioselective Reductive Homocoupling of Allylic Acetates Enabled by Dual Photoredox/Palladium Catalysis: Access to C2-Symmetrical 1,5-Dienes. J Am Chem Soc 2021; 143:12836-12846. [PMID: 34351745 DOI: 10.1021/jacs.1c06271] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Transition-metal-catalyzed reductive coupling reactions have emerged as powerful protocols to construct C-C bonds. However, the development of enantioselective C(sp3)-C(sp3) reductive coupling remains challenging. Herein, we report a highly regio-, diastereo-, and enantioselective reductive homocoupling of allylic acetates through cooperative palladium and photoredox catalysis using diisopropylethylamine or Hantzsch ester as a homogeneous organic reductant. This straightforward protocol enables the stereoselective construction of C(sp3)-C(sp3) bonds under mild reaction conditions. A series of C2-symmetrical chiral 1,5-dienes were easily prepared with excellent enantioselectivities (up to >99% ee), diastereoselectivities (up to >95:5 dr), and regioselectivities (up to >95:5 rr). The resultant chiral 1,5-dienes can be directly used as chiral ligands in asymmetric synthesis, and they can be also transformed into other valuable chiral ligands.
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Affiliation(s)
- Hong-Hao Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Menghan Tang
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Jia-Jia Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Changhua Song
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Shouyun Yu
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
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26
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Ojha S, Panda N. N
‐Methoxy arenesulfonamide as a Sulfonyl Equivalent For Palladium‐Catalyzed Sulfonylation of Arenes Through C−H Activation. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Subhadra Ojha
- Department of Chemistry National Institute of Technology, Rourkela- 769008 Odisha India
| | - Niranjan Panda
- Department of Chemistry National Institute of Technology, Rourkela- 769008 Odisha India
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27
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Antil N, Kumar A, Akhtar N, Newar R, Begum W, Dwivedi A, Manna K. Aluminum Metal–Organic Framework-Ligated Single-Site Nickel(II)-Hydride for Heterogeneous Chemoselective Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04379] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Neha Antil
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ajay Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Naved Akhtar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Rajashree Newar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Wahida Begum
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ashutosh Dwivedi
- Beamline Development and Application Section, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Kuntal Manna
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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28
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Shee M, Singh NDP. Cooperative photoredox and palladium catalysis: recent advances in various functionalization reactions. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02071k] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cooperative photoredox and palladium catalysis for various functionalization reactions.
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Affiliation(s)
- Maniklal Shee
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - N. D. Pradeep Singh
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
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29
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Bugaenko DI, Volkov AA, Karchava AV, Yurovskaya MA. Generation of aryl radicals by redox processes. Recent progress in the arylation methodology. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4959] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Arylation methods based on the generation and use of aryl radicals have been a rapidly growing field of research in recent years and currently represent a powerful strategy for carbon – carbon and carbon – heteroatom bond formation. The progress in this field is related to advances in the methods for generation of aryl radicals. The currently used aryl radical precursors include aryl halides, aryldiazonium and diaryliodonium salts, arylcarboxylic acids and their derivatives, arylboronic acids, arylhydrazines, organosulfur(II, VI) compounds and some other compounds. Aryl radicals are generated under mild conditions by single electron reduction or oxidation of precursors induced by conventional reagents, visible light or electric current. A crucial role in the development of the radical arylation methodology belongs to photoredox processes either catalyzed by transition metal complexes or organic dyes or proceeding without catalysts. Unlike the conventional transition metal-catalyzed arylation methods, radical arylation reactions proceed very often at room temperature and have high functional group tolerance. Without claiming to be exhaustive, this review covers the most important advances of the current decade in the generation and synthetic applications of (het)aryl radicals. Examples of reactions are given and mechanistic insights are highlighted.
The bibliography includes 341 references.
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30
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Dhankhar J, González-Fernández E, Dong CC, Mukhopadhyay TK, Linden A, Čorić I. Spatial Anion Control on Palladium for Mild C-H Arylation of Arenes. J Am Chem Soc 2020; 142:19040-19046. [PMID: 33125849 DOI: 10.1021/jacs.0c09611] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
C-H arylation of arenes without the use of directing groups is a challenge, even for simple molecules, such as benzene. We describe spatial anion control as a concept for the design of catalytic sites for C-H bond activation, thereby enabling nondirected C-H arylation of arenes at ambient temperature. The mild conditions enable late-stage structural diversification of biologically relevant small molecules, and site-selectivity complementary to that obtained with other methods of arene functionalization can be achieved. These results reveal the potential of spatial anion control in transition-metal catalysis for the functionalization of C-H bonds under mild conditions.
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Affiliation(s)
- Jyoti Dhankhar
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Elisa González-Fernández
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Chao-Chen Dong
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Tufan K Mukhopadhyay
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Anthony Linden
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Ilija Čorić
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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31
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Guillemard L, Wencel-Delord J. When metal-catalyzed C-H functionalization meets visible-light photocatalysis. Beilstein J Org Chem 2020; 16:1754-1804. [PMID: 32765795 PMCID: PMC7385395 DOI: 10.3762/bjoc.16.147] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 06/26/2020] [Indexed: 12/22/2022] Open
Abstract
While aiming at sustainable organic synthesis, over the last decade particular attention has been focused on two modern fields, C-H bond activation, and visible-light-induced photocatalysis. Couplings through C-H bond activation involve the use of non-prefunctionalized substrates that are directly converted into more complex molecules, without the need of a previous functionalization, thus considerably reduce waste generation and a number of synthetic steps. In parallel, transformations involving photoredox catalysis promote radical reactions in the absence of radical initiators. They are conducted under particularly mild conditions while using the visible light as a cheap and economic energy source. In this way, these strategies follow the requirements of environment-friendly chemistry. Regarding intrinsic advantages as well as the complementary mode of action of the two catalytic transformations previously introduced, their merging in a synergistic dual catalytic system is extremely appealing. In that perspective, the scope of this review aims to present innovative reactions combining C-H activation and visible-light induced photocatalysis.
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Affiliation(s)
- Lucas Guillemard
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute-Alsace, ECPM, 25 rue Becquerel, 67087, Strasbourg, France
| | - Joanna Wencel-Delord
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute-Alsace, ECPM, 25 rue Becquerel, 67087, Strasbourg, France
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32
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Miliutina E, Guselnikova O, Soldatova NS, Bainova P, Elashnikov R, Fitl P, Kurten T, Yusubov MS, Švorčík V, Valiev RR, Chehimi MM, Lyutakov O, Postnikov PS. Can Plasmon Change Reaction Path? Decomposition of Unsymmetrical Iodonium Salts as an Organic Probe. J Phys Chem Lett 2020; 11:5770-5776. [PMID: 32603124 DOI: 10.1021/acs.jpclett.0c01350] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Plasmon-assisted transformations of organic compounds represent a novel opportunity for conversion of light to chemical energy at room temperature. However, the mechanistic insights of interaction between plasmon energy and organic molecules is still under debate. Herein, we proposed a comprehensive study of the plasmon-assisted reaction mechanism using unsymmetric iodonium salts (ISs) as an organic probe. The experimental and theoretical analysis allow us to exclude the possible thermal effect or hot electron transfer. We found that plasmon interaction with unsymmetrical ISs led to the intramolecular excitation of electron followed by the regioselective cleavage of C-I bond with the formation of electron-rich radical species, which cannot be explained by the hot electron excitation or thermal effects. The high regioselectivity is explained by the direct excitation of electron to LUMO with the formation of a dissociative excited state according to quantum-chemical modeling, which provides novel opportunities for the fine control of reactivity using plasmon energy.
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Affiliation(s)
- Elena Miliutina
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
- Institute of Chemical Technology, Technicka 5, Prague 16628, Czech Republic
| | - Olga Guselnikova
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
- Institute of Chemical Technology, Technicka 5, Prague 16628, Czech Republic
| | - Natalia S Soldatova
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab., 7/9, Saint Petersburg, Russian Federation
| | - Polina Bainova
- Institute of Chemical Technology, Technicka 5, Prague 16628, Czech Republic
| | - Roman Elashnikov
- Institute of Chemical Technology, Technicka 5, Prague 16628, Czech Republic
| | - Přemysl Fitl
- Institute of Chemical Technology, Technicka 5, Prague 16628, Czech Republic
| | - Theo Kurten
- Department of Chemistry, University of Helsinki, Helsinki FIN-00014, Finland
| | - Mekhman S Yusubov
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
| | - Václav Švorčík
- Institute of Chemical Technology, Technicka 5, Prague 16628, Czech Republic
| | - Rashid R Valiev
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
- Department of Chemistry, University of Helsinki, Helsinki FIN-00014, Finland
| | - Mohamed M Chehimi
- University Paris-Est Créteil, 61 Avenue du Général de Gaulle, 94000 Créteil, France
| | - Oleksiy Lyutakov
- Institute of Chemical Technology, Technicka 5, Prague 16628, Czech Republic
| | - Pavel S Postnikov
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russia
- Institute of Chemical Technology, Technicka 5, Prague 16628, Czech Republic
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33
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Babu SS, Shahid M, Gopinath P. Dual palladium-photoredox catalyzed chemoselective C-H arylation of phenylureas. Chem Commun (Camb) 2020; 56:5985-5988. [PMID: 32347860 DOI: 10.1039/d0cc01443e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly chemoselective C-H arylation of phenylureas has been accomplished using dual palladium-photoredox catalysis at room temperature without any additives, base or external oxidants. Regioselective C-H arylation of N,N'-diaryl substituted unsymmetrical phenylureas has also been accomplished by a careful choice of aryl groups.
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Affiliation(s)
- Sakamuri Sarath Babu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India.
| | - M Shahid
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India.
| | - Purushothaman Gopinath
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India.
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34
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Huang B, Hu M, Toste FD. Homogeneous Gold Redox Chemistry: Organometallics, Catalysis, and Beyond. TRENDS IN CHEMISTRY 2020; 2:707-720. [PMID: 34341775 DOI: 10.1016/j.trechm.2020.04.012] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Gold redox chemistry holds the promise of unique reactivities and selectivities that are different to other transition metals. Recent studies have utilized strain release, ligand design, and photochemistry to promote the otherwise sluggish oxidative addition to Au(I) complexes. More details on the reductive elimination from Au(III) complexes have also been revealed. These discoveries have facilitated the development of gold redox catalysis and will continue to offer mechanistic insight and inspiration for other transition metals. This review highlights how research in organometallic chemistry has led to gold redox catalysis, as well as applications in materials science, bioconjugation, and radiochemical synthesis.
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Affiliation(s)
- Banruo Huang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Mingyou Hu
- Department of Chemistry, School of Science, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - F Dean Toste
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
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35
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Abstract
Pyrolysis of polyethylene terephthalate (PET) produces polycyclic hydrocarbons and biphenyl derivatives that are harmful to human health and the environment. Therefore, a palladium metal catalyst (5 wt.% Pd loaded on activated carbon) was used to prevent the formation of harmful materials. When a Pd catalyst/PET ratio of 0.01 was applied in pyrolysis of PET, it did not show a meaningful difference in the generation of polycyclic hydrocarbons and biphenyl derivatives. However, when a Pd catalyst/PET ratio of 0.05 was used during pyrolysis, it prevented their formation and generation at experimental temperature ranges (400–700 °C). For example, the concentration of 2-naphthalenecarboxylic acid produced, which is a typical polycyclic hydrocarbon material, was reduced by 44%. In addition, the concentration of biphenyl-4-carboxylic acid, which is contained in biphenyl derivatives, was reduced by 79% compared to non-catalytic pyrolysis at 800 °C. This was because the ring-opening reaction and free radical mechanism caused by the Pd catalyst and thermal cracking were dominant during the pyrolysis of PET. Apart from these materials, amine compounds were generated as products of the pyrolysis of PET. Amine concentration showed a similar trend with polycyclic hydrocarbons and benzene derivatives. Based on these results, the total concentration of polycyclic hydrocarbons and biphenyl derivatives was compared; the results confirmed that the concentrations of all substances were reduced. This research suggests that a metal-supported catalyst will help create a more environmentally friendly and reliable method of industrial plastic waste disposal.
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36
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Diaryliodoniums Salts as Coupling Partners for Transition-Metal Catalyzed C- and N-Arylation of Heteroarenes. Catalysts 2020. [DOI: 10.3390/catal10050483] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Owing to the pioneering works performed on the metal-catalyzed sp2 C–H arylation of indole and pyrrole by Sanford and Gaunt, N– and C-arylation involving diaryliodonium salts offers an attractive complementary strategy for the late-stage diversification of heteroarenes. The main feature of this expanding methodology is the selective incorporation of structural diversity into complex molecules which usually have several C–H bonds and/or N–H bonds with high tolerance to functional groups and under mild conditions. This review summarizes the main recent achievements reported in transition-metal-catalyzed N– and/or C–H arylation of heteroarenes using acyclic diaryliodonium salts as coupling partners.
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Photoredox/palladium-cocatalyzed enantioselective alkylation of secondary benzyl carbonates with 4-alkyl-1,4-dihydropyridines. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9732-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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38
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Zhang HH, Zhao JJ, Yu S. Enantioselective α-Allylation of Anilines Enabled by a Combined Palladium and Photoredox Catalytic System. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00871] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Hong-Hao Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jia-Jia Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shouyun Yu
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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39
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Govaerts S, Nyuchev A, Noel T. Pushing the boundaries of C–H bond functionalization chemistry using flow technology. J Flow Chem 2020. [DOI: 10.1007/s41981-020-00077-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
AbstractC–H functionalization chemistry is one of the most vibrant research areas within synthetic organic chemistry. While most researchers focus on the development of small-scale batch-type transformations, more recently such transformations have been carried out in flow reactors to explore new chemical space, to boost reactivity or to enable scalability of this important reaction class. Herein, an up-to-date overview of C–H bond functionalization reactions carried out in continuous-flow microreactors is presented. A comprehensive overview of reactions which establish the formal conversion of a C–H bond into carbon–carbon or carbon–heteroatom bonds is provided; this includes metal-assisted C–H bond cleavages, hydrogen atom transfer reactions and C–H bond functionalizations which involve an SE-type process to aromatic or olefinic systems. Particular focus is devoted to showcase the advantages of flow processing to enhance C–H bond functionalization chemistry. Consequently, it is our hope that this review will serve as a guide to inspire researchers to push the boundaries of C–H functionalization chemistry using flow technology.
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40
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Yun YL, Yang J, Miao YH, Sun J, Wang XJ. Recent advances in Palladium(II)-catalyzed activation of aromatic ring C–H bonds. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2020.01.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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41
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Czyz ML, Weragoda GK, Horngren TH, Connell TU, Gomez D, O'Hair RAJ, Polyzos A. Photoexcited Pd(ii) auxiliaries enable light-induced control in C(sp 3)-H bond functionalisation. Chem Sci 2020; 11:2455-2463. [PMID: 34084410 PMCID: PMC8157331 DOI: 10.1039/c9sc05722f] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Herein we report the photophysical and photochemical properties of palladacycle complexes derived from 8-aminoquinoline ligands, commonly used auxiliaries in C–H activation. Spectroscopic, electrochemical and computational studies reveal that visible light irradiation induces a mixed LLCT/MLCT charge transfer providing access to synthetically relevant Pd(iii)/Pd(iv) redox couples. The Pd(ii) complex undergoes photoinduced electron transfer with alkyl halides generating C(sp3)–H halogenation products rather than C–C bond adducts. Online photochemical ESI-MS analysis implicates participation of a mononuclear Pd(iii) species which promotes C–X bond formation via a distinct Pd(iii)/Pd(iv) pathway. To demonstrate the synthetic utility, we developed a general method for inert C(sp3)–H bond bromination, chlorination and iodination with alkyl halides. This new strategy in auxiliary-directed C–H activation provides predictable and controllable access to distinct reactivity pathways proceeding via Pd(iii)/Pd(iv) redox couples induced by visible light irradiation. Visible light irradiation of 8-aminoquinoline Pd(ii) complexes initiates photoinduced electron transfer with alkyl halides, affording C–H halogenation over C–C bond adducts. A method for inert C(sp3)–H bond halogenation (Br, Cl and I) is reported.![]()
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Affiliation(s)
- Milena L Czyz
- School of Chemistry, The University of Melbourne Parkville 3010 Victoria Australia
| | | | - Tyra H Horngren
- School of Chemistry, The University of Melbourne Parkville 3010 Victoria Australia
| | - Timothy U Connell
- School of Science, RMIT University Melbourne Victoria 3000 Australia
| | - Daniel Gomez
- School of Science, RMIT University Melbourne Victoria 3000 Australia
| | - Richard A J O'Hair
- School of Chemistry, The University of Melbourne Parkville 3010 Victoria Australia
| | - Anastasios Polyzos
- School of Chemistry, The University of Melbourne Parkville 3010 Victoria Australia .,CSIRO Manufacturing Research Way Clayton VIC 3168 Australia
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42
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Liang K, Li T, Li N, Zhang Y, Shen L, Ma Z, Xia C. Redox-neutral photochemical Heck-type arylation of vinylphenols activated by visible light. Chem Sci 2020; 11:2130-2135. [PMID: 34123301 PMCID: PMC8150107 DOI: 10.1039/c9sc06184c] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 01/10/2020] [Indexed: 12/12/2022] Open
Abstract
Disclosed herein is a photochemical Heck-type arylation of vinylphenols with non-activated aryl and heteroaryl halides under visible light irradiation. Preliminary mechanistic studies suggested that the colored vinylphenolate anions acted as a strong reducing photoactivator to directly activate (hetero)aryl halides without the need for any sacrificial reductants. The photochemically generated aryl radicals coupled with another molecule of vinylphenol to afford the Heck-type arylation product in a regiospecific and stereoselective manner. The developed photochemical arylation protocol showed exceptional functional group tolerance and was successfully applied in the challenging late-stage modification of natural products without any protection-deprotection procedures.
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Affiliation(s)
- Kangjiang Liang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Tao Li
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Na Li
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Yang Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Lei Shen
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Zhixian Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Chemical Science and Technology, Library of Yunnan University, Yunnan University 2 North Cuihu Road Kunming 650091 China
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43
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Zhou ZZ, Jiao RQ, Yang K, Chen XM, Liang YM. Photoredox/palladium co-catalyzed propargylic benzylation with internal propargylic carbonates. Chem Commun (Camb) 2020; 56:12957-12960. [DOI: 10.1039/d0cc04986g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The developed photo/palladium dual catalytic system provided a novel route to internal propargylic benzylation products. A radical coupling mechanism between the propargylic radical and benzyl radical was proposed.
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Affiliation(s)
- Zhao-Zhao Zhou
- School of Nuclear Science and Technology
- Lanzhou University
- Lanzhou
- P. R. China
- State Key Laboratory of Applied Organic Chemistry
| | - Rui-Qiang Jiao
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Ke Yang
- Technology Center of China Tabacco Guizhou Industrial Co. Ltd
- Guiyang
- P. R. China
| | - Xi-Meng Chen
- School of Nuclear Science and Technology
- Lanzhou University
- Lanzhou
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
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44
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Armido Studer
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
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45
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Leifert D, Studer A. The Persistent Radical Effect in Organic Synthesis. Angew Chem Int Ed Engl 2019; 59:74-108. [PMID: 31116479 DOI: 10.1002/anie.201903726] [Citation(s) in RCA: 377] [Impact Index Per Article: 75.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Indexed: 12/14/2022]
Abstract
Radical-radical couplings are mostly nearly diffusion-controlled processes. Therefore, the selective cross-coupling of two different radicals is challenging and not a synthetically valuable transformation. However, if the radicals have different lifetimes and if they are generated at equal rates, cross-coupling will become the dominant process. This high cross-selectivity is based on a kinetic phenomenon called the persistent radical effect (PRE). In this Review, an explanation of the PRE supported by simulations of simple model systems is provided. Radical stabilities are discussed within the context of their lifetimes, and various examples of PRE-mediated radical-radical couplings in synthesis are summarized. It is shown that the PRE is not restricted to the coupling of a persistent with a transient radical. If one coupling partner is longer-lived than the other transient radical, the PRE operates and high cross-selectivity is achieved. This important point expands the scope of PRE-mediated radical chemistry. The Review is divided into two parts, namely 1) the coupling of persistent or longer-lived organic radicals and 2) "radical-metal crossover reactions"; here, metal-centered radical species and more generally longer-lived transition-metal complexes that are able to react with radicals are discussed-a field that has flourished recently.
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149, Münster, Germany
| | - Armido Studer
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian, 350002, P. R. China.,Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149, Münster, Germany
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46
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De Abreu M, Belmont P, Brachet E. Synergistic Photoredox/Transition-Metal Catalysis for Carbon-Carbon Bond Formation Reactions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901146] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Maxime De Abreu
- Faculté de Pharmacie de Paris; Université de Paris; Team P.N.A.S, UMR-CNRS 8038 CiTCoM; 4 avenue de l'Observatoire 75006 Paris France
| | - Philippe Belmont
- Faculté de Pharmacie de Paris; Université de Paris; Team P.N.A.S, UMR-CNRS 8038 CiTCoM; 4 avenue de l'Observatoire 75006 Paris France
| | - Etienne Brachet
- Faculté de Pharmacie de Paris; Université de Paris; Team P.N.A.S, UMR-CNRS 8038 CiTCoM; 4 avenue de l'Observatoire 75006 Paris France
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47
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Dwivedi V, Kalsi D, Sundararaju B. Electrochemical‐/Photoredox Aspects of Transition Metal‐Catalyzed Directed C−H Bond Activation. ChemCatChem 2019. [DOI: 10.1002/cctc.201900680] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Vikas Dwivedi
- Department of ChemistryIndian Institute of Technology Kanpur Kanpur Uttar Pradesh 208 016 India
| | - Deepti Kalsi
- Department of ChemistryIndian Institute of Technology Kanpur Kanpur Uttar Pradesh 208 016 India
| | - Basker Sundararaju
- Department of ChemistryIndian Institute of Technology Kanpur Kanpur Uttar Pradesh 208 016 India
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48
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Milligan JA, Phelan JP, Badir SO, Molander GA. Alkyl Carbon-Carbon Bond Formation by Nickel/Photoredox Cross-Coupling. Angew Chem Int Ed Engl 2019; 58:6152-6163. [PMID: 30291664 DOI: 10.1002/anie.201809431] [Citation(s) in RCA: 387] [Impact Index Per Article: 77.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Indexed: 11/10/2022]
Abstract
The union of photoredox and nickel catalysis has resulted in a renaissance in radical chemistry as well as in the use of nickel-catalyzed transformations, specifically for carbon-carbon bond formation. Collectively, these advances address the longstanding challenge of late-stage cross-coupling of functionalized alkyl fragments. Empowered by the notion that photocatalytically generated alkyl radicals readily undergo capture by Ni complexes, wholly new feedstocks for cross-coupling have been realized. Herein, we highlight recent developments in several types of alkyl cross-couplings that are accessible exclusively through this approach.
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Affiliation(s)
- John A Milligan
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA, 19104-6323, USA
| | - James P Phelan
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA, 19104-6323, USA
| | - Shorouk O Badir
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA, 19104-6323, USA
| | - Gary A Molander
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA, 19104-6323, USA
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49
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Milligan JA, Phelan JP, Badir SO, Molander GA. Alkyl‐C‐C‐Bindungsbildung durch Nickel/Photoredox‐Kreuzkupplung. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201809431] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- John A. Milligan
- Department of ChemistryUniversity of PennsylvaniaRoy and Diana Vagelos Laboratories 231 S. 34th Street Philadelphia PA 19104-6323 USA
| | - James P. Phelan
- Department of ChemistryUniversity of PennsylvaniaRoy and Diana Vagelos Laboratories 231 S. 34th Street Philadelphia PA 19104-6323 USA
| | - Shorouk O. Badir
- Department of ChemistryUniversity of PennsylvaniaRoy and Diana Vagelos Laboratories 231 S. 34th Street Philadelphia PA 19104-6323 USA
| | - Gary A. Molander
- Department of ChemistryUniversity of PennsylvaniaRoy and Diana Vagelos Laboratories 231 S. 34th Street Philadelphia PA 19104-6323 USA
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50
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Felpin FX, Sengupta S. Biaryl synthesis with arenediazonium salts: cross-coupling, CH-arylation and annulation reactions. Chem Soc Rev 2019; 48:1150-1193. [PMID: 30608075 DOI: 10.1039/c8cs00453f] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The rich legacy of arenediazonium salts in the synthesis of unsymmetrical biaryls, built around the seminal works of Pschorr, Gomberg and Bachmann more than a century ago, continues to make important contributions at various evolutionary stages of modern biaryl synthesis. Based on in-depth mechanistic analysis and design of novel pathways and reaction conditions, the scope of biaryl synthesis with arenediazonium salts has enormously expanded in recent years through applications of transition metal/photoredox-catalysed cross-coupling, thermal/photosensitized radical chain CH-arylation of (hetero)arenes and arylative radical annulation reactions with alkynes. These recent developments have provided facile synthetic access to a wide variety of unsymmetrical biaryls of pharmaceutical, agrochemical and optoelectronic importance with green scale-up options and created opportunities for late-stage modification of peptides, nucleosides, carbon nanotubes and electrodes, the details of which are captured in this review.
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Affiliation(s)
- François-Xavier Felpin
- Université de Nantes, UFR des Sciences et des Techniques, CNRS UMR 6230, CEISAM, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France. and Institut Universitaire de France, 1 rue Descartes, 75231 Paris Cedex 05, France
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