301
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Zu W, Day C, Wei L, Jia X, Xu L. Dual aminoquinolate diarylboron and nickel catalysed metallaphotoredox platform for carbon-oxygen bond construction. Chem Commun (Camb) 2020; 56:8273-8276. [PMID: 32568331 DOI: 10.1039/d0cc03230a] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Herein, aminoquinolate diarylboron complexes are utilized as photocatalysts in dual Ni/photoredox catalyzed carbon-oxygen construction reactions. Via this unified metallaphotoredox platform, diverse (hetero)aryl halides can be conveniently coupled with acids, alcohols and water. This method features operational simplicity, broad substrate scope and good compatibility with functional groups.
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Affiliation(s)
- Weisai Zu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China.
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302
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Nakafuku KM, Zhang Z, Wappes EA, Stateman LM, Chen AD, Nagib DA. Enantioselective radical C-H amination for the synthesis of β-amino alcohols. Nat Chem 2020; 12:697-704. [PMID: 32572164 PMCID: PMC7390680 DOI: 10.1038/s41557-020-0482-8] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 05/04/2020] [Indexed: 11/09/2022]
Abstract
Asymmetric, radical C-H functionalizations are rare but powerful tools for solving modern synthetic challenges. Specifically, the enantio- and regioselective C-H amination of alcohols to access medicinally valuable chiral β-amino alcohols remains elusive. To solve this challenge, a radical relay chaperone strategy was designed, wherein an alcohol was transiently converted to an imidate radical that underwent intramolecular H-atom transfer (HAT). This regioselective HAT was also rendered enantioselective by harnessing energy transfer catalysis to mediate selective radical generation and interception by a chiral copper catalyst. The successful development of this multi-catalytic, asymmetric, radical C-H amination enabled broad access to chiral β-amino alcohols from a variety of alcohols containing alkyl, allyl, benzyl and propargyl C-H bonds. Mechanistic experiments revealed that triplet energy sensitization of a Cu-bound radical precursor facilitates catalyst-mediated HAT stereoselectivity, enabling the synthesis of several important classes of chiral β-amines by enantioselective, radical C-H amination.
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Affiliation(s)
- Kohki M Nakafuku
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Zuxiao Zhang
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Ethan A Wappes
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Leah M Stateman
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Andrew D Chen
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - David A Nagib
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA.
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303
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Fujiwara T, Nomura K, Inagaki A. Cu–Pd Dinuclear Complexes with Earth-Abundant Cu Photosensitizer: Synthesis and Photopolymerization. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomoya Fujiwara
- Department of Chemistry, Tokyo Metropolitan University, 1-1, Minami-Osawa, Hachioji-shi, 192-0397 Tokyo, Japan
| | - Kotohiro Nomura
- Department of Chemistry, Tokyo Metropolitan University, 1-1, Minami-Osawa, Hachioji-shi, 192-0397 Tokyo, Japan
| | - Akiko Inagaki
- Department of Chemistry, Tokyo Metropolitan University, 1-1, Minami-Osawa, Hachioji-shi, 192-0397 Tokyo, Japan
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304
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Yu XY, Chen JR, Xiao WJ. Visible Light-Driven Radical-Mediated C–C Bond Cleavage/Functionalization in Organic Synthesis. Chem Rev 2020; 121:506-561. [DOI: 10.1021/acs.chemrev.0c00030] [Citation(s) in RCA: 360] [Impact Index Per Article: 90.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiao-Ye Yu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Jia-Rong Chen
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
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305
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Chen K, Guo S, Liu H, Li X, Zhang Z, Lu T. Strong Visible‐Light‐Absorbing Cuprous Sensitizers for Dramatically Boosting Photocatalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003251] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kai‐Kai Chen
- MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science & Engineering Tianjin University of Technology Tianjin 300384 China
| | - Song Guo
- MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science & Engineering Tianjin University of Technology Tianjin 300384 China
| | - Heyuan Liu
- School of Materials Science and Engineering, College of New Energy China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Xiyou Li
- School of Materials Science and Engineering, College of New Energy China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Zhi‐Ming Zhang
- MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science & Engineering Tianjin University of Technology Tianjin 300384 China
| | - Tong‐Bu Lu
- MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science & Engineering Tianjin University of Technology Tianjin 300384 China
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306
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Chen K, Guo S, Liu H, Li X, Zhang Z, Lu T. Strong Visible‐Light‐Absorbing Cuprous Sensitizers for Dramatically Boosting Photocatalysis. Angew Chem Int Ed Engl 2020; 59:12951-12957. [DOI: 10.1002/anie.202003251] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Kai‐Kai Chen
- MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science & Engineering Tianjin University of Technology Tianjin 300384 China
| | - Song Guo
- MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science & Engineering Tianjin University of Technology Tianjin 300384 China
| | - Heyuan Liu
- School of Materials Science and Engineering, College of New Energy China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Xiyou Li
- School of Materials Science and Engineering, College of New Energy China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Zhi‐Ming Zhang
- MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science & Engineering Tianjin University of Technology Tianjin 300384 China
| | - Tong‐Bu Lu
- MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science & Engineering Tianjin University of Technology Tianjin 300384 China
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307
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Yu XY, Zhao QQ, Chen J, Xiao WJ, Chen JR. When Light Meets Nitrogen-Centered Radicals: From Reagents to Catalysts. Acc Chem Res 2020; 53:1066-1083. [PMID: 32286794 DOI: 10.1021/acs.accounts.0c00090] [Citation(s) in RCA: 275] [Impact Index Per Article: 68.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nitrogen-centered radicals (NCRs) are a versatile class of highly reactive species that have a longer history than the classical carbon-based radicals in synthetic chemistry. Depending on the N-hybridization and substitution patterns, NCRs can serve as electrophiles or nucleophiles to undergo various radical transformations. Despite their power, progress in nitrogen-radical chemistry is still slow compared with the popularity of carbon radicals, and their considerable synthetic potential has been largely underexplored, which is, as concluded by Zard, mainly hampered by "a dearth of convenient access to these species and a lack of awareness pertaining to their reactivity".Over the past decade, visible-light photoredox catalysis has been established as a powerful toolbox that synthetic chemists can use to generate a diverse range of radical intermediates from native organic functional groups via a single electron transfer process or energy transfer under mild reaction conditions. This catalytic strategy typically obviates the need for external stoichiometric activation reagents or toxic initiators and often enables traditionally inaccessible ionic chemical reactions. On the basis of our long-standing interest in nitrogen chemistry and catalysis, we have emphasized the use of visible-light photoredox catalysis as a tactic to discover and develop novel methods for generating NCRs in a controlled fashion and synthetic applications. In this Account, we describe our recent advances in the development of visible-light-driven photoredox-catalyzed generation of NCRs and their synthetic applications.Inspired by the natural biological proton-coupled electron transfer (PCET) process, we first developed a strategy of visible-light-driven photoredox-catalyzed oxidative deprotonation electron transfer to activate the N-H bonds of hydrazones, benzamides, and sulfonamides to give the corresponding NCRs under mild reaction conditions. With these reactive species, we then achieved a range of 5-exo and 6-endo radical cyclizations as well as cascade reactions in a highly regioselective manner, providing access to a variety of potentially useful nitrogen heterocycles. To further expand the repertoire of possible reactions of NCRs, we also revealed that iminyl radicals, derived from O-acyl cycloalkanone oxime esters, can undergo facile ring-opening C-C bond cleavage to give cyanoalkyl radicals. These newly formed radical species can further undergo a variety of C-C bond-forming reactions to allow the synthesis of diverse distally functionalized alkyl nitriles. Stimulated by these studies, we further developed a wide variety of visible-light-driven copper-catalyzed radical cross-coupling reactions of cyanoalkyl radicals. Because of their inherent highly reactive and transient properties, the strategy of heteroatom-centered radical catalysis is still largely underexplored in organic synthesis. Building on our understanding of the fundamental chemistry of NCRs, we also developed for the first time the concept of NCR covalent catalysis, which involves the use of in situ-photogenerated NCRs to activate allyl sulfones, vinylcyclopropanes, and N-tosyl vinylaziridines. This catalytic strategy has thus enabled efficient difunctionalization of various alkenes and late-stage modification of complex biologically active molecules.In this Account, we describe a panoramic picture of our recent contributions since 2014 to the development and application of the visible-light-driven photoredox systems in the field of NCR chemistry. These studies provide not only efficient methods for the synthesis of functionally rich molecules but also some insight into the exploration of new reactivity or reaction modes of NCRs.
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Affiliation(s)
- Xiao-Ye Yu
- CCNU−uOttawa Joint Research Center, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Quan-Qing Zhao
- CCNU−uOttawa Joint Research Center, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Jun Chen
- CCNU−uOttawa Joint Research Center, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Wen-Jing Xiao
- CCNU−uOttawa Joint Research Center, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Jia-Rong Chen
- CCNU−uOttawa Joint Research Center, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
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308
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309
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310
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Mao Y, Zhao W, Lu S, Yu L, Wang Y, Liang Y, Ni S, Pan Y. Copper-catalysed photoinduced decarboxylative alkynylation: a combined experimental and computational study. Chem Sci 2020; 11:4939-4947. [PMID: 34122950 PMCID: PMC8159226 DOI: 10.1039/d0sc02213f] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Redox-active esters (RAEs) as alkyl radical precursors have demonstrated great advantages for C–C bond formation. A decarboxylative cross-coupling method is described to afford substituted alkynes from various carboxylic acids using copper catalysts CuCl and Cu(acac)2. The photoexcitation of copper acetylides with electron-rich NEt3 as a ligand provides a general strategy to generate a range of alkyl radicals from RAEs of carboxylic acids, which can be readily coupled with a variety of aromatic alkynes. The scope of this cross-coupling reaction can be further expanded to aliphatic alkynes and alkynyl silanes using a catalytic amount of preformed copper-phenylacetylide. In addition, DFT calculations revealed the favorable reaction pathway and that the bidentate acetylacetonate ligand of the copper intermediate plays an important role in inhibiting the homo-coupling of the alkyne. Redox-active esters (RAEs) as alkyl radical precursors have demonstrated great advantages for Cu-catalysed C–C bond formation.![]()
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Affiliation(s)
- Yu Mao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Wenxuan Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Shuo Lu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Lei Yu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Yong Liang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Shengyang Ni
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
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311
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Lewis-Borrell L, Sneha M, Bhattacherjee A, Clark IP, Orr-Ewing AJ. Mapping the multi-step mechanism of a photoredox catalyzed atom-transfer radical polymerization reaction by direct observation of the reactive intermediates. Chem Sci 2020; 11:4475-4481. [PMID: 34122905 PMCID: PMC8159429 DOI: 10.1039/d0sc01194k] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/16/2020] [Indexed: 12/12/2022] Open
Abstract
The rapid development of new applications of photoredox catalysis has so far outpaced the mechanistic studies important for rational design of new classes of catalysts. Here, we report the use of ultrafast transient absorption spectroscopic methods to reveal both mechanistic and kinetic details of multiple sequential steps involved in an organocatalyzed atom transfer radical polymerization reaction. The polymerization system studied involves a N,N-diaryl dihydrophenazine photocatalyst, a radical initiator (methyl 2-bromopropionate) and a monomer (isoprene). Time-resolved spectroscopic measurements spanning sub-picosecond to microseconds (i.e., almost 8 orders of magnitude of time) track the formation and loss of key reactive intermediates. These measurements identify both the excited state of the photocatalyst responsible for electron transfer and the radical intermediates participating in propagation reactions, as well as quantifying their lifetimes. The outcomes connect the properties of N,N-diaryl dihydrophenazine organic photocatalysts with the rates of sequential steps in the catalytic cycle.
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Affiliation(s)
- Luke Lewis-Borrell
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Mahima Sneha
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Aditi Bhattacherjee
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Ian P Clark
- Central Laser Facility, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratory Harwell Oxford, Didcot Oxfordshire OX11 0QX UK
| | - Andrew J Orr-Ewing
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
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312
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Xu T, Cao T, Yang M, Xu R, Nie X, Liao S. Decarboxylative Thiolation of Redox-Active Esters to Thioesters by Merging Photoredox and Copper Catalysis. Org Lett 2020; 22:3692-3696. [DOI: 10.1021/acs.orglett.0c01180] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tianxiao Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Tianpeng Cao
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Mingcheng Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Ruting Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Xingliang Nie
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Saihu Liao
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Beijing 100190, P. R. China
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313
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Lei T, Wei SM, Feng K, Chen B, Tung CH, Wu LZ. Borylation of Diazonium Salts by Highly Emissive and Crystalline Carbon Dots in Water. CHEMSUSCHEM 2020; 13:1715-1719. [PMID: 32057192 DOI: 10.1002/cssc.202000277] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/11/2020] [Indexed: 06/10/2023]
Abstract
Efficient borylation reaction of diazonium salts in water is realized for the first time by using easily prepared, highly emissive and crystalline carbon dots. Electron-donating and electron-withdrawing groups on diazonium salts were well tolerated with moderate to good conversion efficiency. Compared with widely used metal complexes, organic dyes and quantum dots, the approach presented herein uses carbon dots, which are nontoxic and possess good biological and medicinal compatibility and high reactivity. Therefore, this approach presents a new prospective use for carbon dots in green chemistry.
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Affiliation(s)
- Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Si-Meng Wei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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314
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Reddy MB, Anandhan R. Visible light initiated amino group ortho-directed copper(i)-catalysed aerobic oxidative C(sp)-S coupling reaction: synthesis of substituted 2-phenylbenzothiazoles via thia-Wolff rearrangement. Chem Commun (Camb) 2020; 56:3781-3784. [PMID: 32129436 DOI: 10.1039/d0cc00815j] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A facile amino group ortho-directed visible-light-driven copper-catalysed aerobic oxidative C(sp)-S coupling reaction of a dimer of 2-aminothiophenol with terminal alkynes was achieved. This photochemical reaction shows an excellent conversion and chemoselectivity towards the formation of C(sp)-S coupling and has been employed for a wide range of thiol dimers, and alkynes. Furthermore, the synthetic utility of the synthesized alkynyl sulfides was demonstrated as a direct method for the construction of 2-phenylbenzothiazoles from the corresponding alkynyl sulfides via "thia-Wolff rearrangement" using AgNO3 and visible light using 9-mesityl-10-methylacridinium ions (Acr+-Mes) as photoredox catalyst system.
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Affiliation(s)
- Mandapati Bhargava Reddy
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai-600 025, Tamil Nadu, India.
| | - Ramasamy Anandhan
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai-600 025, Tamil Nadu, India.
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315
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Zhang HH, Chen H, Zhu C, Yu S. A review of enantioselective dual transition metal/photoredox catalysis. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9701-5] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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316
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Capaldo L, Ravelli D. The Dark Side of Photocatalysis: One Thousand Ways to Close the Cycle. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000144] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Luca Capaldo
- PhotoGreen Lab; Department of Chemistry; University of Pavia; viale Taramelli 12 27100 Pavia Italy
| | - Davide Ravelli
- PhotoGreen Lab; Department of Chemistry; University of Pavia; viale Taramelli 12 27100 Pavia Italy
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317
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Liao J, Ouyang L, Lai Y, Luo R. Photoredox-Catalyzed Oxy-/Aminofluoroalkylative Cyclization of Alkenes. J Org Chem 2020; 85:5590-5597. [DOI: 10.1021/acs.joc.0c00457] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jianhua Liao
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China
- School of Pharmacy, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
| | - Lu Ouyang
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China
| | - Yinlong Lai
- College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, China
| | - Renshi Luo
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China
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318
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Zhong M, Pannecoucke X, Jubault P, Poisson T. Recent advances in photocatalyzed reactions using well-defined copper(I) complexes. Beilstein J Org Chem 2020; 16:451-481. [PMID: 32273907 PMCID: PMC7113551 DOI: 10.3762/bjoc.16.42] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/12/2020] [Indexed: 12/17/2022] Open
Abstract
This review summarizes the recent advances in photocatalysis using copper complexes. Their applications in various reactions, such as ATRA, reduction, oxidation, proton-coupled electron transfer, and energy transfer reactions are discussed.
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Affiliation(s)
- Mingbing Zhong
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Xavier Pannecoucke
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Philippe Jubault
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Thomas Poisson
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
- Institut Universitaire de France, 1 rue Descartes, 75231 Paris, France
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319
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Yu XY, Chen J, Chen HW, Xiao WJ, Chen JR. Visible-Light-Driven Copper-Catalyzed C(sp3)–O Cross-Coupling of Benzylic Radicals with Phenols. Org Lett 2020; 22:2333-2338. [DOI: 10.1021/acs.orglett.0c00532] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Ye Yu
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Jun Chen
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Hong-Wei Chen
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Jia-Rong Chen
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
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320
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Sakurai S, Tsuzuki S, Sakamoto R, Maruoka K. Cu-Catalyzed Generation of Alkyl Radicals from Alkylsilyl Peroxides and Subsequent C(sp 3)-C(sp 2) Cross-Coupling with Arylboronic Acids. J Org Chem 2020; 85:3973-3980. [PMID: 31939666 DOI: 10.1021/acs.joc.9b03294] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This work describes a novel and practical method for the Cu-catalyzed C(sp3)-C(sp2) cross-coupling of alkylsilyl peroxides with arylboronic acids. The reductive cleavage of the O-O bond of alkylsilyl peroxides and the desired cross-coupling reactions to afford alkyl-substituted aromatic rings proceed smoothly at room temperature promoted by simple Cu-based catalysts and do not require activation by visible light. The results of mechanistic investigations support a radical-mediated C(sp3)-C(sp2) bond formation via β-scission of the alkoxy radicals generated from the alkylsilyl peroxides.
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Affiliation(s)
- Shunya Sakurai
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Saori Tsuzuki
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Ryu Sakamoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.,Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
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321
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Glaser F, Wenger OS. Recent progress in the development of transition-metal based photoredox catalysts. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213129] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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322
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Roseborough A, Wheeler KA, Hołyńska M, Stoian SA. Synthesis and electronic structure of a mononuclear copper(II) complex supported by tris(2-hydroxyliminopropyl)amine. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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323
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Xia S, Hu K, Lei C, Jin J. Intramolecular Aromatic C–H Acyloxylation Enabled by Iron Photocatalysis. Org Lett 2020; 22:1385-1389. [DOI: 10.1021/acs.orglett.0c00002] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Siqi Xia
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Road, Shanghai 200444, China
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 20032, China
| | - Kunjun Hu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 20032, China
| | - Chuanhu Lei
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Jian Jin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 20032, China
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324
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Li Z, Torres-Ochoa RO, Wang Q, Zhu J. Functionalization of remote C(sp 3)-H bonds enabled by copper-catalyzed coupling of O-acyloximes with terminal alkynes. Nat Commun 2020; 11:403. [PMID: 31964870 PMCID: PMC6972843 DOI: 10.1038/s41467-020-14292-2] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/17/2019] [Indexed: 12/23/2022] Open
Abstract
Transition metal catalyzed Sonogashira cross-coupling of terminal alkynes with aryl(vinyl) (pseudo)halides has been successfully extended to alkyl halides for the synthesis of functionalized internal alkynes. The direct alkynylation of remote unfunctionalized sp3 carbon by terminal alkynes remains difficult to realize. We report herein an approach to this synthetic challenge by developing two catalytic remote sp3 carbon alkynylation protocols. In the presence of a catalytic amount of Cu(I) salt and a tridentate ligand (tBu3-terpyridine), O-acyloximes derived from cycloalkanones and acyclic ketones are efficiently coupled with terminal alkynes to afford a variety of γ- and δ-alkynyl nitriles and γ-alkynyl ketones, respectively. These reactions proceed through a domino sequence involving copper-catalyzed reductive generation of iminyl radical followed by radical translocation via either β-scission or 1,5-hydrogen atom transfer (1,5-HAT) and copper-catalyzed alkynylation of the resulting translocated carbon radicals. The protocols are applicable to complex natural products.
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Affiliation(s)
- Zhaodong Li
- Department of Applied Chemistry, College of Material and Energy, South China Agricultural University, 510642, Guangzhou, China
| | - Rubén O Torres-Ochoa
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, CH-1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, CH-1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, CH-1015, Lausanne, Switzerland.
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325
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Cheng LJ, Mankad NP. C–C and C–X coupling reactions of unactivated alkyl electrophiles using copper catalysis. Chem Soc Rev 2020; 49:8036-8064. [DOI: 10.1039/d0cs00316f] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Copper catalysts enable cross-coupling reactions of unactivated alkyl electrophiles to generate C–C and C–X bonds.
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Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
| | - Neal P. Mankad
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
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326
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Bag D, Kour H, Sawant SD. Photo-induced 1,2-carbohalofunctionalization of C–C multiple bonds via ATRA pathway. Org Biomol Chem 2020; 18:8278-8293. [PMID: 33006347 DOI: 10.1039/d0ob01454k] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Carbohalofunctionalization of C–C multiple bonds via atom transfer radical processes constitutes an efficient method for the construction of halogenated building blocks with complete atom economy. This review summarizes the recent advancements.
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Affiliation(s)
- Debojyoti Bag
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu
- India
| | - Harpreet Kour
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu
- India
| | - Sanghapal D. Sawant
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu
- India
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327
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Zhang T, Zang H, Gai F, Feng Z, Li M, Duan C. Photoswitchable Cu(ii)/Cu(i) catalyses assisted by enzyme-like non-covalent interactions in Cu(ii)–melamine coordination polymers for installing CO2/CS2 and CF3 groups in heterocycles. NEW J CHEM 2020. [DOI: 10.1039/d0nj02154g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study describes photoswitchable Cu(ii)/Cu(i) catalyses and enzyme-like interactions in Cu–TDPAT for installing CO2/CS2 and CF3 groups in heterocycles.
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Affiliation(s)
- Tiexin Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian
- P. R. China
| | - Hanbin Zang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian
- P. R. China
| | - Fangyuan Gai
- Advanced Institute of Materials Science
- School of Chemistry and Biology
- Changchun University of Technology
- Changchun
- P. R. China
| | - Zhi Feng
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian
- P. R. China
| | - Mochen Li
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian
- P. R. China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering
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328
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Castellanos-Soriano J, Herrera-Luna JC, Díaz Díaz D, Jiménez MC, Pérez-Ruiz R. Recent applications of biphotonic processes in organic synthesis. Org Chem Front 2020. [DOI: 10.1039/d0qo00466a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Organic synthesis mediated by biphotonic processes has gained great momentum in the last five years. Herein, an overview of the existing examples is reported.
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Affiliation(s)
| | | | - David Díaz Díaz
- Institut für Organische Chemie
- Universität Regensburg
- 93053 Regensburg
- Germany
- Departamento de Química Orgánica
| | - M. Consuelo Jiménez
- Departamento de Química
- Universitat Politècnica de València (UPV)
- Valencia
- Spain
| | - Raúl Pérez-Ruiz
- Departamento de Química
- Universitat Politècnica de València (UPV)
- Valencia
- Spain
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329
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Long W, Lian P, Li J, Wan X. Mn-Catalysed photoredox hydroxytrifluoromethylation of aliphatic alkenes using CF3SO2Na. Org Biomol Chem 2020; 18:6483-6486. [DOI: 10.1039/d0ob01322f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mn(acac)3 catalyzed photoinduced hydroxytrifluoromethylation of aliphatic alkenes with CF3SO2Na was well established.
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Affiliation(s)
- Wenhao Long
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Pengcheng Lian
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jingjing Li
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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330
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Liu J, Liu XP, Wu H, Wei Y, Lu FD, Guo KR, Cheng Y, Xiao WJ. Visible-light-induced triple catalysis for a ring-opening cyanation of cyclopropyl ketones. Chem Commun (Camb) 2020; 56:11508-11511. [DOI: 10.1039/d0cc05167e] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A ring-opening cyanation of cyclopropyl ketones was developed via a synergistic triple catalysis strategy, providing a wide range of γ-cyanoketones in good reaction efficiencies under mild and eco-friendly conditions.
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Affiliation(s)
- Jing Liu
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Xiao-Peng Liu
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Hong Wu
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Yi Wei
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Fu-Dong Lu
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Kai-Rui Guo
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Ying Cheng
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
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331
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Abstract
Catalytic allylation reactions are important methodologies to produce fine chemicals and synthetic building blocks. This review discloses state-of-the-art photocatalyzed allylation methodologies, their reaction mechanisms, and synthetic applications.
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332
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Abadie B, Jardel D, Pozzi G, Toullec P, Vincent JM. Dual Benzophenone/Copper-Photocatalyzed Giese-Type Alkylation of C(sp 3 )-H Bonds. Chemistry 2019; 25:16120-16127. [PMID: 31595555 DOI: 10.1002/chem.201904111] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Indexed: 01/24/2023]
Abstract
Photocatalyzed Giese-type alkylations of C(sp3 )-H bonds are very attractive reactions in the context of atom-economy in C-C bond formation. The main limitation of such reactions is that when using highly polymerizable olefin acceptors, such as unsubstituted acrylates, acrylonitrile, or methyl vinyl ketone, radical polymerization often becomes the dominant or exclusive reaction pathway. Herein, we report that the polymerization of such olefins is strongly limited or suppressed when combining the photocatalytic activity of benzophenone (BP) with a catalytic amount of Cu(OAc)2 . Under mild and operationally simple conditions, the Giese adducts resulting from the C(sp3 )-H functionalization of amines, alcohols, ethers, and cycloalkanes could be synthesized. Preliminary mechanistic studies have revealed that the reaction does not proceed through a radical chain, but through a dual BP/Cu photocatalytic process, in which both CuII and low-valent CuI/0 species, generated in situ by reduction by the BP ketyl radical, may react with α-keto or α-cyano intermediate radicals, thus preventing polymerization.
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Affiliation(s)
- Baptiste Abadie
- Institut des Sciences Moléculaires, CNRS UMR5255, Université Bordeaux, 33405, Talence, France
| | - Damien Jardel
- Institut des Sciences Moléculaires, CNRS UMR5255, Université Bordeaux, 33405, Talence, France
| | - Gianluca Pozzi
- CNR-Istituto di Scienze e Tecnologie Molecolari (ISTM), via Golgi 19, 20133, Milano, Italy
| | - Patrick Toullec
- Institut des Sciences Moléculaires, CNRS UMR5255, Université Bordeaux, 33405, Talence, France
| | - Jean-Marc Vincent
- Institut des Sciences Moléculaires, CNRS UMR5255, Université Bordeaux, 33405, Talence, France
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333
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Toda Y, Tanaka K, Matsuda R, Suga H. Visible-light-triggered Catalytic Halohydrin Synthesis from Epoxides and Trichloroacetonitrile by Copper and Iron Salts. CHEM LETT 2019. [DOI: 10.1246/cl.190679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yasunori Toda
- Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Katsumi Tanaka
- Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Riki Matsuda
- Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Hiroyuki Suga
- Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
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334
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Huang C, Feng J, Ma R, Fang S, Lu T, Tang W, Du D, Gao J. Redox-Neutral Borylation of Aryl Sulfonium Salts via C-S Activation Enabled by Light. Org Lett 2019; 21:9688-9692. [PMID: 31755274 DOI: 10.1021/acs.orglett.9b03850] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Reported here is a novel photoinduced strategy for the borylation of aryl sulfonium salts using bis(pinacolato)diboron as the boron source. This method exploits redox-neutral aryl sulfoniums to gain access to aryl radicals via C-S bond activation upon photoexcitation under transition-metal-free conditions. Therefore, it grants access to diverse arylboronate esters with good performance from easily available aryl sulfoniums accompanied by mild conditions, operational simplicity, and easy scalability.
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Affiliation(s)
- Chen Huang
- Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China
| | - Jie Feng
- Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China
| | - Rui Ma
- Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China
| | - Shuaishuai Fang
- Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China
| | - Tao Lu
- Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China
| | - Weifang Tang
- Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China
| | - Ding Du
- Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China
| | - Jian Gao
- Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China
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335
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Mateos J, Rigodanza F, Vega‐Peñaloza A, Sartorel A, Natali M, Bortolato T, Pelosi G, Companyó X, Bonchio M, Dell'Amico L. Naphthochromenones: Organic Bimodal Photocatalysts Engaging in Both Oxidative and Reductive Quenching Processes. Angew Chem Int Ed Engl 2019; 59:1302-1312. [DOI: 10.1002/anie.201912455] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Javier Mateos
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Francesco Rigodanza
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Alberto Vega‐Peñaloza
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Andrea Sartorel
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Mirco Natali
- Department of Chemical and Pharmaceutical Sciences University of Ferrara Institution Via Luigi Borsari 46 44121 Ferrara Italy
| | - Tommaso Bortolato
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Giorgio Pelosi
- Department of Chemistry, Life Sciences and Environmental Sustainability University of Parma Parco Area delle Scienze 17 43124 Parma Italy
| | - Xavier Companyó
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Marcella Bonchio
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Luca Dell'Amico
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
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336
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Chen J, Wang PZ, Lu B, Liang D, Yu XY, Xiao WJ, Chen JR. Enantioselective Radical Ring-Opening Cyanation of Oxime Esters by Dual Photoredox and Copper Catalysis. Org Lett 2019; 21:9763-9768. [DOI: 10.1021/acs.orglett.9b03970] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Chen
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Peng-Zi Wang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Bin Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Dong Liang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Xiao-Ye Yu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Jia-Rong Chen
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
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337
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Mateos J, Rigodanza F, Vega‐Peñaloza A, Sartorel A, Natali M, Bortolato T, Pelosi G, Companyó X, Bonchio M, Dell'Amico L. Naphthochromenones: Organic Bimodal Photocatalysts Engaging in Both Oxidative and Reductive Quenching Processes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Javier Mateos
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Francesco Rigodanza
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Alberto Vega‐Peñaloza
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Andrea Sartorel
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Mirco Natali
- Department of Chemical and Pharmaceutical Sciences University of Ferrara Institution Via Luigi Borsari 46 44121 Ferrara Italy
| | - Tommaso Bortolato
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Giorgio Pelosi
- Department of Chemistry, Life Sciences and Environmental Sustainability University of Parma Parco Area delle Scienze 17 43124 Parma Italy
| | - Xavier Companyó
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Marcella Bonchio
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
| | - Luca Dell'Amico
- Department of Chemical Sciences University of Padova Institution Via Marzolo 1 35131 Padova Italy
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338
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Kim N, Lee C, Kim T, Hong S. Visible-Light-Induced Remote C(sp 3)-H Pyridylation of Sulfonamides and Carboxamides. Org Lett 2019; 21:9719-9723. [PMID: 31736318 DOI: 10.1021/acs.orglett.9b03879] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Visible-light-induced site-selective C(sp3)-H pyridylation of amides has been accomplished using N-amidopyridinium salts. The N-centered radicals generated by the single-electron reduction of N-amidopyridinium substrates undergo 1,5-hydrogen atom transfer to form alkyl radical intermediates. Excellent C4-selectivity in radical trapping with pyridinium salts is observed for the alkyl radicals to provide δ-pyridyl sulfonamides and γ-pyridyl carboxamides. The utility is demonstrated by offering a practical approach for the late-stage functionalization of complex amide derivatives.
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Affiliation(s)
- Namhoon Kim
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon , 34141 , Korea.,Center for Catalytic Hydrocarbon Functionalizations , Institute for Basic Science (IBS) , Daejeon 34141 , Korea
| | - Changseok Lee
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon , 34141 , Korea.,Center for Catalytic Hydrocarbon Functionalizations , Institute for Basic Science (IBS) , Daejeon 34141 , Korea
| | - Taehwan Kim
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon , 34141 , Korea.,Center for Catalytic Hydrocarbon Functionalizations , Institute for Basic Science (IBS) , Daejeon 34141 , Korea
| | - Sungwoo Hong
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon , 34141 , Korea.,Center for Catalytic Hydrocarbon Functionalizations , Institute for Basic Science (IBS) , Daejeon 34141 , Korea
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339
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Liang D, Rao L, Xiao C, Chen JR. Intermolecular Hetero-Diels–Alder Reactions of Photogenerated aza-ortho-Quinone Methides with Aldehydes. Org Lett 2019; 21:8783-8788. [DOI: 10.1021/acs.orglett.9b03399] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Dong Liang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Li Rao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Cong Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Jia-Rong Chen
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
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340
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Unified and practical access to ɤ-alkynylated carbonyl derivatives via streamlined assembly at room temperature. Commun Chem 2019. [DOI: 10.1038/s42004-019-0219-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Abstract
The development of a unified and straightforward method for the synthesis of ɤ-alkynylated ketones, esters, and amides is an unmet challenge. Here we report a general and practical protocol to access ɤ-alkynylated esters, ketones, and amides with diverse substitution patterns enabled by dual-catalyzed spontaneous formation of Csp3–sp3 and Csp3–sp bond from alkenes at room temperature. This directing-group-free strategy is operationally simple, and allows for the straightforward introduction of an alkynyl group onto ɤ-position of carbonyl group along with the streamlined skeleton assembly, providing a unified protocol to synthesize various ɤ-alkynylated esters, acids, amides, ketones, and aldehydes, from readily available starting materials with excellent functional group compatibility.
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341
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Cheng YY, Lei T, Su L, Fan X, Chen B, Tung CH, Wu LZ. Visible Light Irradiation of Acyl Oxime Esters and Styrenes Efficiently Constructs β-Carbonyl Imides by a Scission and Four-Component Reassembly Process. Org Lett 2019; 21:8789-8794. [DOI: 10.1021/acs.orglett.9b03409] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuan-Yuan Cheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Longlong Su
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiuwei Fan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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342
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Feng G, Wang X, Jin J. Decarboxylative C-C and C-N Bond Formation by Ligand-Accelerated Iron Photocatalysis. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901381] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Guangshou Feng
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Xiaofei Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
- College of Chemistry and Materials Science; Shanghai Normal University; 100 Guilin Road 200234 Shanghai China
| | - Jian Jin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
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343
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Zhou X, Cheng Y, Chen J, Yu X, Xiao W, Chen J. Copper‐Catalyzed Radical Cross‐Coupling of Oxime Esters and Sulfinates for Synthesis of Cyanoalkylated Sulfones. ChemCatChem 2019. [DOI: 10.1002/cctc.201901695] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xue‐Song Zhou
- CCNU-uOttawa Joint Research Centre Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis Key Laboratory of Pesticides & Chemical Biology Ministry of Education College of ChemistryCentral China Normal University 152 Luoyu Road Hubei 430079 P. R. China
| | - Ying Cheng
- CCNU-uOttawa Joint Research Centre Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis Key Laboratory of Pesticides & Chemical Biology Ministry of Education College of ChemistryCentral China Normal University 152 Luoyu Road Hubei 430079 P. R. China
| | - Jun Chen
- CCNU-uOttawa Joint Research Centre Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis Key Laboratory of Pesticides & Chemical Biology Ministry of Education College of ChemistryCentral China Normal University 152 Luoyu Road Hubei 430079 P. R. China
| | - Xiao‐Ye Yu
- CCNU-uOttawa Joint Research Centre Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis Key Laboratory of Pesticides & Chemical Biology Ministry of Education College of ChemistryCentral China Normal University 152 Luoyu Road Hubei 430079 P. R. China
| | - Wen‐Jing Xiao
- CCNU-uOttawa Joint Research Centre Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis Key Laboratory of Pesticides & Chemical Biology Ministry of Education College of ChemistryCentral China Normal University 152 Luoyu Road Hubei 430079 P. R. China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry 345 Lingling Road Shanghai 200032 P. R. China
| | - Jia‐Rong Chen
- CCNU-uOttawa Joint Research Centre Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis Key Laboratory of Pesticides & Chemical Biology Ministry of Education College of ChemistryCentral China Normal University 152 Luoyu Road Hubei 430079 P. R. China
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344
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Chen W, Song F. Thermally activated delayed fluorescence molecules and their new applications aside from OLEDs. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.08.032] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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345
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Tian C, Wang Q, Wang X, An G, Li G. Visible-Light Mediated ortho-Trifluoromethylation of Aniline Derivatives. J Org Chem 2019; 84:14241-14247. [DOI: 10.1021/acs.joc.9b01987] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Chao Tian
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, No. 74, Xuefu Road, Nangang District, Harbin 150080, People’s Republic of China
| | - Qiyue Wang
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, No. 74, Xuefu Road, Nangang District, Harbin 150080, People’s Republic of China
| | - Xueqi Wang
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, No. 74, Xuefu Road, Nangang District, Harbin 150080, People’s Republic of China
| | - Guanghui An
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, No. 74, Xuefu Road, Nangang District, Harbin 150080, People’s Republic of China
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, China
| | - Guangming Li
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, No. 74, Xuefu Road, Nangang District, Harbin 150080, People’s Republic of China
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346
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Cavedon C, Seeberger PH, Pieber B. Photochemical Strategies for Carbon–Heteroatom Bond Formation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901173] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Cristian Cavedon
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Peter H. Seeberger
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Bartholomäus Pieber
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
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347
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Xiong Y, Zhang G. Visible-Light-Induced Copper-Catalyzed Intermolecular Markovnikov Hydroamination of Alkenes. Org Lett 2019; 21:7873-7877. [DOI: 10.1021/acs.orglett.9b02863] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Xiong
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence
in Molecular Synthesis, University of Chinese Academy of Sciences,
Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence
in Molecular Synthesis, University of Chinese Academy of Sciences,
Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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348
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Herr P, Glaser F, Büldt LA, Larsen CB, Wenger OS. Long-Lived, Strongly Emissive, and Highly Reducing Excited States in Mo(0) Complexes with Chelating Isocyanides. J Am Chem Soc 2019; 141:14394-14402. [PMID: 31464429 DOI: 10.1021/jacs.9b07373] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Newly discovered tris(diisocyanide)molybdenum(0) complexes are Earth-abundant isoelectronic analogues of the well-known class of [Ru(α-diimine)3]2+ compounds with long-lived 3MLCT (metal-to-ligand charge transfer) excited states that lead to rich photophysics and photochemistry. Depending on ligand design, luminescence quantum yields up to 0.20 and microsecond excited state lifetimes are achieved in solution at room temperature, both significantly better than those for [Ru(2,2'-bipyridine)3]2+. The excited Mo(0) complexes can induce chemical reactions that are thermodynamically too demanding for common precious metal-based photosensitizers, including the widely employed fac-[Ir(2-phenylpyridine)3] complex, as demonstrated on a series of light-driven aryl-aryl coupling reactions. The most robust Mo(0) complex exhibits stable photoluminescence and remains photoactive after continuous irradiation exceeding 2 months. Our comprehensive optical spectroscopic and photochemical study shows that Mo(0) complexes with diisocyanide chelate ligands constitute a new family of luminophores and photosensitizers, which is complementary to precious metal-based 4d6 and 5d6 complexes and represents an alternative to nonemissive Fe(II) compounds. This is relevant in the greater context of sustainable photophysics and photochemistry, as well as for possible applications in lighting, sensing, and catalysis.
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Affiliation(s)
- Patrick Herr
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland
| | - Felix Glaser
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland
| | - Laura A Büldt
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland
| | - Christopher B Larsen
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland
| | - Oliver S Wenger
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland
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349
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Han B, Li Y, Yu Y, Gong L. Photocatalytic enantioselective α-aminoalkylation of acyclic imine derivatives by a chiral copper catalyst. Nat Commun 2019; 10:3804. [PMID: 31444326 PMCID: PMC6707287 DOI: 10.1038/s41467-019-11688-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 07/30/2019] [Indexed: 11/08/2022] Open
Abstract
Copper-based asymmetric photocatalysis has great potential in the development of green synthetic approaches to chiral molecules. However, there are several formidable challenges associated with such a conception. These include the relatively weak visible light absorption, short excited-state lifetimes, incompatibility of different catalytic cycles, and the difficulty of the stereocontrol. We report here an effective strategy by means of single-electron-transfer (SET) initiated formation of radicals and photoactive intermediates to address the long-standing problems. Through elaborate selection of well-matched reaction partners, the chiral bisoxazoline copper catalyst is engaged in the SET process, photoredox catalysis, Lewis acid activation and asymmetric induction. Accordingly, a highly enantioselective photocatalytic α-aminoalkylation of acyclic imine derivatives has been accessed. This strategy sheds light on how to make use of diverse functions of a single transition metal catalyst in one reaction, and offers an economic and simplified approach to construction of highly valuable chiral vicinal diamines.
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Affiliation(s)
- Bowen Han
- Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Yanjun Li
- Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Ying Yu
- Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Lei Gong
- Key Laboratory of Chemical Biology of Fujian Province, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.
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350
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Bao X, Wang Q, Zhu J. Remote C(sp 3 )-H Arylation and Vinylation of N-Alkoxypyridinium Salts to δ-Aryl and δ-Vinyl Alcohols. Chemistry 2019; 25:11630-11634. [PMID: 31321814 DOI: 10.1002/chem.201902918] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Indexed: 02/02/2023]
Abstract
The reaction of readily available and bench-stable N-alkoxypyridinium salts with arylboronic and vinylboronic acids afforded δ-aryl and δ-vinyl alcohols, respectively, in the presence of fac-Ir(ppy)3 and Cu(OTf)2 dual catalysts. The reaction takes place through a domino process involving the reductive generation of alkoxyl radicals, 1,5-hydrogen atom transfer (1,5-HAT) and the copper-catalyzed cross-coupling reaction of the resulting translocated carbon radicals with boronic acids. Complementary to the Minisci reaction, this method allows for the arylation of nucleophilic alkyl radicals with both electron-rich and electron-poor arenes under mild reaction conditions.
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Affiliation(s)
- Xu Bao
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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