1
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Piedra HF, Plaza M. Advancements in visible-light-induced reactions via alkenyl radical intermediates. Photochem Photobiol Sci 2024; 23:1217-1228. [PMID: 38700648 DOI: 10.1007/s43630-024-00580-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/15/2024] [Indexed: 06/18/2024]
Abstract
In recent years, visible-light-induced organic transformations have taken a central role driving forward the progress of modern organic synthesis. These processes typically involve the transient generation of highly reactive radical intermediates, facilitating a diverse array of chemical reactions. Despite the abundance of synthetic strategies enabling the access of aryl and alkyl-centered radicals, the exploitation of photochemistry to generate highly reactive alkenyl radicals has remained notably underdeveloped. In this review, we present recent advancements in visible-light-induced transformations that proceed through the generation of alkenyl radicals from alkenyl-containing precursors, predominantly alkenyl halides, showcasing their application in various organic transformations.
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Affiliation(s)
- Helena F Piedra
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica "Enrique Moles" and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo, Julián Clavería, 8, 33006, Oviedo, Spain
| | - Manuel Plaza
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica "Enrique Moles" and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo, Julián Clavería, 8, 33006, Oviedo, Spain.
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2
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Zuo HD, Chen X, Yuan YY, Zhang Y, Liu JW, Yan SH, Hao WJ, Jiang B. Photocatalytic Bicyclization of Indole-Tethered 1,6-Enynes for Diastereoselective Synthesis of Pyrrolo[3,2,1- jk]carbazoles. Org Lett 2024; 26:3810-3815. [PMID: 38678579 DOI: 10.1021/acs.orglett.4c00935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
A visible-light-driven photocatalytic protocol is established for the diastereoselective synthesis of pyrrolo[3,2,1-jk]carbazoles via a radical-triggered multicomponent bicyclization reaction starting from readily available indole-tethered 1,6-enynes and α-benzyl-α-bromomalonates under mild conditions. This photocatalytic approach exhibits a wide substrate compatibility and excellent tolerability toward various functional groups and boasts the benefit of efficient ring formation and chemical bond creation.
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Affiliation(s)
- Hang-Dong Zuo
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
- School of Safety Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Xi Chen
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Ya-Yu Yuan
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Yue Zhang
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Jian-Wu Liu
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Sheng-Hu Yan
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, China
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3
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Chen D, Bao Y, Yan S, Wang J, Zhang Y, Li G. Photocatalytic Multicomponent Annulation of Amide-Anchored 1,7-Diynes Enabled by Deconstruction of Bromotrichloromethane. Molecules 2024; 29:782. [PMID: 38398533 PMCID: PMC10893216 DOI: 10.3390/molecules29040782] [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: 12/27/2023] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
We present the first example of visible-light-mediated multicomponent annulation of 1,7-diynes by taking advantage of quadruple cleavage olf carbon-halogen bonds of BrCCl3 to generate a C1 synthon, which was adeptly applied to the preparation of skeletally diverse 3-benzoyl-quinolin-2(1H)-one acetates in moderate to good yields. Controlled experiments demonstrated that H2O acted as both oxygen and hydrogen sources, and gem-dichlorovinyl carbonyl compound exhibited as a critical intermediate in this process. The mechanistic pathway involves Kharasch-type addition/6-exo-dig cyclization/1,5-(SN")-substitution/elimination/binucleophilic 1,6-addition/proton transfer/tautomerization sequence.
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Affiliation(s)
- Daixiang Chen
- School of Pharmacy, Changzhou University, Changzhou 213164, China
| | - Yu Bao
- School of Pharmacy, Changzhou University, Changzhou 213164, China
| | - Shenghu Yan
- School of Pharmacy, Changzhou University, Changzhou 213164, China
| | - Jiayin Wang
- School of Pharmacy, Changzhou University, Changzhou 213164, China
| | - Yue Zhang
- School of Pharmacy, Changzhou University, Changzhou 213164, China
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA;
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4
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Krueger R, Feng E, Barzova P, Lieberman N, Lin S, Moeller KD. Anodic Cyclizations, Densely Functionalized Synthetic Building Blocks, and the Importance of Recent Mechanistic Observations. J Org Chem 2024; 89:1927-1940. [PMID: 38231008 DOI: 10.1021/acs.joc.3c02659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Anodic cyclization reactions can provide a versatile method for converting newly obtained chiral lactols to densely functionalized cyclic building blocks. The method works by first converting the lactol into an electron-rich olefin and then oxidatively generating a radical cation that is trapped by a nucleophile. Historically, such reactions have benefited from the use of less polar radical cations when the trapping nucleophile is a heteroatom and more polar radical cations when the reaction forms C-C bonds. This forced one to optimize underperforming reactions by resynthesizing the substrate. Here, we show that by taking advantage of methods that serve to drive a reversible initial cyclization reaction toward the product, this dichotomy and need to manipulate the substrate can be avoided. Two such methods were utilized: a faster second oxidation step and a mediated electrolysis. Both led to successful cyclizations using a polar radical cation and heteroatom nucleophiles.
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Affiliation(s)
- Ruby Krueger
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Enqi Feng
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Polina Barzova
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Noah Lieberman
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Song Lin
- Department of Chemistry and Biological Chemistry, Cornell University, Ithaca, New York 14853, United States
| | - Kevin D Moeller
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
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5
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Wang B, Singh J, Deng Y. Photoredox-Catalyzed Divergent Radical Cascade Annulations of 1,6-Enynes via Pyridine N-Oxide-Promoted Vinyl Radical Generation. Org Lett 2023; 25:9219-9224. [PMID: 38112553 PMCID: PMC10842598 DOI: 10.1021/acs.orglett.3c03930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The divergent organophotoredox-catalyzed radical cascade annulation reactions of 1,6-enynes were developed. A series of cyclopropane-fused hetero- and carbo-bicyclic, tricyclic, and spiro-tetracyclic compounds were facilely synthesized from a broad scope of 1,6-enynes and 2,6-lutidine N-oxide under mild and metal-free conditions with blue light-emitting diode light irradiation. The cascade annulation reaction occurs with the intermediacy of a β-oxyvinyl radical, which is produced from photocatalytically generated pyridine N-oxy radical addition to the carbon-carbon triple bond.
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Affiliation(s)
- Ban Wang
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, 402 North Blackford Street, Indianapolis, Indiana 46202, United States
| | - Jujhar Singh
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, 402 North Blackford Street, Indianapolis, Indiana 46202, United States
| | - Yongming Deng
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, 402 North Blackford Street, Indianapolis, Indiana 46202, United States
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6
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Piedra HF, Gebler V, Valdés C, Plaza M. Photochemical halogen-bonding assisted carbothiophosphorylation reactions of alkenyl and 1,3-dienyl bromides. Chem Sci 2023; 14:12767-12773. [PMID: 38020380 PMCID: PMC10646874 DOI: 10.1039/d3sc05263j] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 10/28/2023] [Indexed: 12/01/2023] Open
Abstract
Herein, we present a synthetic procedure for the facile and general preparation of novel S-alkenyl and dienyl phosphoro(di)thioates for the first time. Extensive mechanistic investigations support that the reactions rely on a photochemical excitation of a halogen-bonding complex, formed with a phosphorothioate salt and an alkenyl or dienyl bromide, which light-induced fragmentation leads to the formation of the desired products through a radical-based pathway. The substrate scope is broad and exhibits a wide functional group tolerance in the formation of the final compounds, including molecules derived from natural products, all with unknown and potentially interesting biological properties. Eventually, a very efficient continuous flow protocol was developed for the upscale of these reactions.
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Affiliation(s)
- Helena F Piedra
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles", Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo Julián Clavería 8 33006 Oviedo Spain
| | - Victoria Gebler
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles", Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo Julián Clavería 8 33006 Oviedo Spain
| | - Carlos Valdés
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles", Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo Julián Clavería 8 33006 Oviedo Spain
| | - Manuel Plaza
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles", Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo Julián Clavería 8 33006 Oviedo Spain
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7
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Zhang Z, Zhang W, Hou ZW, Li P, Wang L. Electrophilic Halospirocyclization of N-Benzylacrylamides to Access 4-Halomethyl-2-azaspiro[4.5]decanes. J Org Chem 2023; 88:13610-13621. [PMID: 37694951 DOI: 10.1021/acs.joc.3c01315] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
An electrophilic spirocyclization of N-benzylacrylamides with N-halosuccinimides (NXS) as the halogenating reagents has been developed. This reaction is carried out at room temperature under simple conditions without relying on metal reagents, photochemistry, or electrochemistry, providing a fast and efficient route to synthesize a wide variety of 4-halomethyl-2-azaspiro[4.5]decanes with satisfactory yields. The approach is further highlighted through gram-scale synthesis and diverse transformations of the spiro products.
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Affiliation(s)
- Zhongyi Zhang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
- Department of Chemistry, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
| | - Wei Zhang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Zhong-Wei Hou
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P. R. China
| | - Lei Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
- Department of Chemistry, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P. R. China
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8
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Yang H, Lu Z, Yin X, Wu S, Hou L. Influence laws of air gap structure manipulation of covalent organic frameworks on dielectric properties and exciton effects for photopolymerization. Chem Sci 2023; 14:8095-8102. [PMID: 37538822 PMCID: PMC10395304 DOI: 10.1039/d3sc01719b] [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: 04/04/2023] [Accepted: 06/26/2023] [Indexed: 08/05/2023] Open
Abstract
Boosting the dissociation of excitons is essential to enhance the photocatalytic efficiency. However, the relationship between the structure of the catalyst and the exciton effect on the photocatalytic activity is still unclear as the main problem. Here, it is proposed that as a descriptive factor, an experimentally measurable dielectric constant (εr) is available to quantitatively describe its relationship with exciton binding energy (Eb) and photocatalytic activity. With tuning the linker of covalent organic frameworks (COFs), the "air gap" structure is oriented to shrink, leading to an increased εr of COFs and a lower Eb to facilitate exciton dissociation. Meanwhile, taking "water-/oxygen-fueled" photo-induced electron transfer reversible addition-fragmentation chain transfer (PET-RAFT) polymerization as a demonstration platform, it can be seen that COFs with a small "air gap" structure have relatively superior photocatalytic activity. This provides important implications for the evolution of efficient photocatalysts.
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Affiliation(s)
- Hongjie Yang
- Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering, Fuzhou University Fuzhou 350116 P. R. China
| | - Zhen Lu
- Qingyuan Innovation Laboratory Quanzhou 362801 P. R. China
| | - Xiangyu Yin
- Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering, Fuzhou University Fuzhou 350116 P. R. China
| | - Shengjin Wu
- Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering, Fuzhou University Fuzhou 350116 P. R. China
| | - Linxi Hou
- Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering, Fuzhou University Fuzhou 350116 P. R. China
- Qingyuan Innovation Laboratory Quanzhou 362801 P. R. China
- Fujian Key Laboratory of Advanced Manufacturing Technology of Specialty Chemicals, Fuzhou University Fuzhou 350116 P. R. China
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9
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Zheng Y, Liao Z, Xie Z, Chen H, Chen K, Xiang H, Yang H. Photochemical Alkene Trifluoromethylimination Enabled by Trifluoromethylsulfonylamide as a Bifunctional Reagent. Org Lett 2023; 25:2129-2133. [PMID: 36943094 DOI: 10.1021/acs.orglett.3c00577] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Herein, we disclose a facile and versatile trifluoromethylimination of alkene with a rationally designed N-(diphenylmethylene)-1,1,1-trifluoromethanesulfonamide as a bench-stable and readily accessible carboamination reagent. Enabled by an energy transfer (EnT) process, an array of alkenes were able to be facilely CF3-iminated under metal-free photocatalytic conditions. The mild reaction conditions and good functional group compatibility render this protocol highly valuable for the difunctionalization of olefins with structural complexity and diversity.
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Affiliation(s)
- Yu Zheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zihao Liao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhenzhen Xie
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hongbin Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Haoyue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
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10
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Li SS, Jiang YS, Luo XL, Pan CX, Xia PJ. Photoinduced Remote C(sp 3)-H Imination Enabled by Vinyl Radical-Mediated 1,5-Hydrogen Atom Transfer. Org Lett 2023; 25:1595-1599. [PMID: 36826423 DOI: 10.1021/acs.orglett.3c00510] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
A vinyl radical-mediated 1,5-hydrogen atom transfer strategy for remote C(sp3)-H imination under visible-light-induced photochemical metal-free conditions afforded diverse γ-imino alkenes with excellent stereoselectivity. Oxime ester-based bifunctional reagents provided not only nucleophilic alkyl radicals for radical addition reactions with electron-deficient alkynes but also long-lived steady-state imine radicals for trapping alkyl radicals following the intramolecular 1,5-hydrogen migration of unstable olefin radicals.
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Affiliation(s)
- Shan-Shan Li
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, Guangxi 541004, People's Republic of China
| | - Yu-Shi Jiang
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, Guangxi 541004, People's Republic of China
| | - Xue-Ling Luo
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, Guangxi 541004, People's Republic of China
| | - Cheng-Xue Pan
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, Guangxi 541004, People's Republic of China
| | - Peng-Ju Xia
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, Guangxi 541004, People's Republic of China
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11
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Zhang F, Wei Z, Wu W, Liu N, Li X, Zou L, Wang K, Xu J, Fan B. Photocatalyst-free visible light driven synthesis of gem-dihaloenones from alkynes, tetrahalomethanes and water. Org Biomol Chem 2023; 21:719-723. [PMID: 36416357 DOI: 10.1039/d2ob01983c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Photocatalytic reactions, in particular, processes without photosensitisers, have attracted increased attention due to their green aspect and high economic value and are considered valuable tools in organic synthesis. A new practical photocatalytic system was investigated in this study, and it can efficiently produce gem-dihaloenones by combining terminal alkynes with tetrahalomethanes (BrCCl3 and CBr4) and water without a photocatalyst, and the yield can reach up to 87%. The catalytic system is straightforward, the raw materials are inexpensive and easy to obtain, and the operation is simple.
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Affiliation(s)
- Fuqing Zhang
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China.
| | - Zixiang Wei
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China.
| | - Wei Wu
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China.
| | - Na Liu
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China. .,Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan, 650504, China
| | - Xinhan Li
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China.
| | - Luqian Zou
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China.
| | - Kaiming Wang
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China.
| | - Jianbin Xu
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China. .,Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan, 650504, China
| | - Baomin Fan
- School of chemistry and Environment, Yunnan Minzu University, Kunmin 650504, China. .,Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, Yunnan, 650504, China
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12
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Piedra HF, Plaza M. Photochemical halogen-bonding assisted generation of vinyl and sulfur-centered radicals: stereoselective catalyst-free C(sp 2)-S bond forming reactions. Chem Sci 2023; 14:650-657. [PMID: 36741527 PMCID: PMC9848158 DOI: 10.1039/d2sc05556b] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
The combination of photochemistry and halogen bonding interactions has risen in the last few years as a powerful synthetic tool for the creation of radical intermediates under mild conditions. In the formation of carbon-centered radicals, this reactivity has been to date restricted to the employment of aryl and alkyl halides as precursors. We now envisioned that the halogen-bonding initiated formation of highly reactive vinyl radicals would be a feasible process for the photochemical cross-coupling between thiols and alkenyl halides under basic conditions. The reaction shows indeed a very broad functional group tolerance, is stereoselective, simple and scalable. In-depth mechanistic studies point at the formation of vinyl and sulfur-centered radicals as the intermediates of the reaction and DFT calculations support the pre-formation of a halogen-bonding complex as the initiator of the photochemical transformation. Synthetic applications were developed to extend the utility of this methodology.
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Affiliation(s)
- Helena F. Piedra
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de OviedoJulián Clavería 833006 OviedoSpain
| | - Manuel Plaza
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de OviedoJulián Clavería 833006 OviedoSpain
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13
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Zeng X, Cheng Z, Xie Y, Gu Y. Transition-metal-free Synthesis of tetra-substituted Vinyl Iodides by Cascade Sequential Reaction of α-Keto Acids, 1-Iodoalkynes, and Alkyl Halides. Chem Asian J 2023; 18:e202201117. [PMID: 36458644 DOI: 10.1002/asia.202201117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 12/05/2022]
Abstract
The cascade sequential reaction of α-keto acids, 1-iodoalkynes, and alkyl halides are reported herein to synthesize tetra-substituted vinyl iodides. It represents an efficient protocol to access a diverse range of tetra-substituted vinyl iodides starting from simple materials in a one-pot fashion, featuring mild reaction conditions, ease of operation, and broad substrate scope.
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Affiliation(s)
- Xiaobao Zeng
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target School of Pharmacy, Nantong University, Nantong, 226001, P. R. China
| | - Zhenfeng Cheng
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target School of Pharmacy, Nantong University, Nantong, 226001, P. R. China
| | - Yushan Xie
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target School of Pharmacy, Nantong University, Nantong, 226001, P. R. China
| | - Yunhui Gu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target School of Pharmacy, Nantong University, Nantong, 226001, P. R. China
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14
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Ni H, Li C, Shi X, Hu X, Mao H. Visible-Light-Promoted Fe(III)-Catalyzed N-H Alkylation of Amides and N-Heterocycles. J Org Chem 2022; 87:9797-9805. [PMID: 35857034 DOI: 10.1021/acs.joc.2c00854] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The combination of the radical chemistry of ligand-to-metal charge transfer with metal catalysis by a single iron salt helps to realize the visible-light-promoted N-H alkylation of amides and N-heterocycles. A wide variety of amides and nitrogen-containing heterocycles were tolerated in our protocol to give N-alkylated products. The applicability of this protocol was further demonstrated by late-stage alkylation of N-H-containing pharmaceuticals. Moreover, N-H-alkylated α-amino tetrahydrofurans could be transformed into versatile ring-opened amino alcohols under reducing conditions. A mechanistic study revealed that hydrogen atom transfer by a tert-butoxyl radical and a chlorine radical was responsible for the activation of C(sp3)-H precursors.
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Affiliation(s)
- Hangcheng Ni
- College of Pharmacy, Jinhua Polytechnic, Jinhua 321007, People's Republic of China.,Jinhua Branch, Sichuan Industrial Institute of Antibiotics, Chengdu University, Jinhua 321007, People's Republic of China
| | - Chaoming Li
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, Chengdu University, Jinhua 321007, People's Republic of China
| | - Xingzi Shi
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, Chengdu University, Jinhua 321007, People's Republic of China
| | - Xianyue Hu
- College of Pharmacy, Jinhua Polytechnic, Jinhua 321007, People's Republic of China
| | - Hui Mao
- College of Pharmacy, Jinhua Polytechnic, Jinhua 321007, People's Republic of China
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15
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Xiang J, Patureau FW. Cross Dehydrogenative Coupling of Chloro‐ and Fluoroalkanes with Methylarenes. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jia‐Xiang Xiang
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Frederic W. Patureau
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
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16
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Xu ZY, Liu YP, Liu X, Fu R, Hao WJ, Tu SJ, Jiang B. Photocatalytic Chemodivergent Synthesis of α‐gem‐Dihalovinyl Ketones and Chromen‐2‐ones from Monoalkynes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | | | - Xin Liu
- Jiangsu Normal University CHINA
| | - Rong Fu
- Jiangsu Normal University CHINA
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17
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Liu YL, Liu XY, Feng L, Shao LX, Li SJ, Tang J, Cheng H, Chen Z, Huang R, Xu HC, Zhuang JL. Two-Dimensional Metal-Organic Framework Nanosheets: Synthesis and Applications in Electrocatalysis and Photocatalysis. CHEMSUSCHEM 2022; 15:e202102603. [PMID: 35092355 DOI: 10.1002/cssc.202102603] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/22/2022] [Indexed: 06/14/2023]
Abstract
Two-dimensional metal-organic nanosheets (2D MONs) are an emerging class of ultrathin, porous, and crystalline materials. The organic/inorganic hybrid nature offers MONs distinct advantages over other inorganic nanosheets in terms of diversity of organic ligands and metal notes. Compared to bulk three-dimensional metal-organic frameworks, 2D MONs possess merits of high density and readily accessible catalytic sites, reduced diffusion pathways for reactants/products, and fast electron transport. These features endow MONs with enhanced physical/chemical properties and are ideal for heterogeneous catalysis. In this Review, state-of-the-art synthetic methods for the fabrication of 2D MONs were summarized. The advances of 2D MONs-based materials for electrocatalysis and photocatalysis, including hydrogen evolution reaction (HER), oxygen evolution reaction (OER), oxygen reduction reaction (ORR), carbon dioxide reduction reaction (CO2 RR), and electro-/photocatalytic organic transformations were systematically discussed. Finally, the challenges and perspectives regarding future design and synthesis of 2D MONs for high-performance electrocatalysis and photocatalysis were provided.
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Affiliation(s)
- Ya-Long Liu
- School of Chemistry and Materials Science, Key Lab for Functional Materials Chemistry of Guizhou Province, Guizhou Normal University, 550001, Guiyang, P. R. China
| | - Xiang-Yue Liu
- College of Chemistry, Key Laboratory for Analytical Science of Food Safety, and Biology, Ministry of Education, Fuzhou University, 350108, Fuzhou, P. R. China
| | - Li Feng
- School of Chemistry and Materials Science, Key Lab for Functional Materials Chemistry of Guizhou Province, Guizhou Normal University, 550001, Guiyang, P. R. China
| | - Lan-Xing Shao
- School of Chemistry and Materials Science, Key Lab for Functional Materials Chemistry of Guizhou Province, Guizhou Normal University, 550001, Guiyang, P. R. China
| | - Si-Jun Li
- School of Chemistry and Materials Science, Key Lab for Functional Materials Chemistry of Guizhou Province, Guizhou Normal University, 550001, Guiyang, P. R. China
| | - Jing Tang
- College of Chemistry, Key Laboratory for Analytical Science of Food Safety, and Biology, Ministry of Education, Fuzhou University, 350108, Fuzhou, P. R. China
| | - Hu Cheng
- School of Chemistry and Materials Science, Key Lab for Functional Materials Chemistry of Guizhou Province, Guizhou Normal University, 550001, Guiyang, P. R. China
| | - Zhuo Chen
- School of Chemistry and Materials Science, Key Lab for Functional Materials Chemistry of Guizhou Province, Guizhou Normal University, 550001, Guiyang, P. R. China
| | - Rui Huang
- Stake Key Laboratory of Physical Chemistry of Solid Surface, iChem, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Hai-Chao Xu
- Stake Key Laboratory of Physical Chemistry of Solid Surface, iChem, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Jin-Liang Zhuang
- School of Chemistry and Materials Science, Key Lab for Functional Materials Chemistry of Guizhou Province, Guizhou Normal University, 550001, Guiyang, P. R. China
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18
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Manikandan R, Phatake RS, Lemcoff NG. Metal‐Free Photochemical Olefin Isomerization of Unsaturated Ketones via 1,5‐Hydrogen Atom Transfer. Chemistry 2022; 28:e202200634. [PMID: 35325491 PMCID: PMC9321148 DOI: 10.1002/chem.202200634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Indexed: 11/22/2022]
Abstract
The photochemical isomerization of α,β‐ to β,γ‐unsaturated ketones through a 1,5‐hydrogen atom transfer mechanism under mild conditions with high efficiency and selectivity is reported. The reaction is carried out in the absence of metal catalysts or other additives, and its stereoselectivity can be tuned by selecting appropriate solvent mixtures. The reaction‘s scope and tolerance towards functional groups, including light‐sensitive halogens, free acids and alcohols, were studied, providing reliable access to a wide variety of β,γ‐unsaturated ketones. This methodology details the deconjugation of a wide range of unsaturated ketones and, when combined with olefin metathesis, provides an efficient process for either dehomologation or one‐carbon double‐bond migration of terminal alkenes.
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Affiliation(s)
- Rajendran Manikandan
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Ravindra S. Phatake
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - N. Gabriel Lemcoff
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
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19
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Ding L, Deng YH, Sun TY, Jiang Y, Xia XF. Merging Hydrogen Atom Transfer and Halogen Atom Transfer for Iodide-Catalyzed Radical Reductive Cyclization of 1,6-Enynes. Org Lett 2022; 24:3113-3117. [PMID: 35475629 DOI: 10.1021/acs.orglett.2c00552] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Described herein is the development of a metal-free iodide-catalyzed radical reductive cyclization of 1,6-enynes. A strategy involving in situ iodination/radical cyclization/silyl radical-mediated halogen atom transfer/hydrogen atom transfer for the synthesis of functionalized pyrrolidines has been proposed. Using this halogen-atom abstraction protocol, 1,6-enynes with various vinyl halides including inert fluorides, chlorides, and reactive bromides could be transformed into substituted pyrroles via a multistep radical isomerization process.
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Affiliation(s)
- Linglong Ding
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yi-Hui Deng
- The Key Laboratory of Chemical Genomics, Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Tian-Yu Sun
- Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Yuqin Jiang
- Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xiao-Feng Xia
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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20
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Zeng W, Li W, Chen H, Zhou L. Relay Photocatalytic Reaction of N-Aryl Amino Acids and 2-Bromo-3,3,3-trifluoropropene: Synthesis of 4-(Difluoromethylidene)-tetrahydroquinolines. Org Lett 2022; 24:3265-3269. [PMID: 35467357 DOI: 10.1021/acs.orglett.2c01117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The bulk industrial chemical 2-bromo-3,3,3-trifluoropropene (BTP) was first employed as a coupling partner in photocatalytic defluorinative reactions with N-aryl amino acids. Photoredox activation of the C(sp2)-Br bond of the resultant 2-bromo-1,1-difluoroalkenes generates gem-difluoro vinyl radicals for further radical cyclization. Various 4-(difluoromethylidene)-tetrahydroquinolines were assembled in good yields by combining two photoredox cycles with a single photocatalyst.
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Affiliation(s)
- Weidi Zeng
- School of Chemistry, Sun Yat-Sen University, Panyu District, Guangzhou 510006, China
| | - Weiyu Li
- School of Chemistry, Sun Yat-Sen University, Panyu District, Guangzhou 510006, China
| | - Haoguo Chen
- School of Chemistry, Sun Yat-Sen University, Panyu District, Guangzhou 510006, China
| | - Lei Zhou
- School of Chemistry, Sun Yat-Sen University, Panyu District, Guangzhou 510006, China
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21
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Yu W, Jiao X, Fan Y, Zhu S, Chu L. Metallaphotoredox‐Enabled Intermolecular Carbobromination of Alkynes with Alkenyl Bromides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200096] [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)
- Wei Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 People's Republic of China
| | - Xiaorui Jiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 People's Republic of China
| | - Yanmin Fan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 People's Republic of China
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 People's Republic of China
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 People's Republic of China
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22
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Recent advances of visible-light photocatalysis in the functionalization of organic compounds. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2022. [DOI: 10.1016/j.jphotochemrev.2022.100488] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Lu H, Lu Z, Shang M. Organic Sulfinic Acids and Salts in Visible Light-Induced Reactions. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1671-0085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
AbstractSulfinic acids and their salts are a useful source of sulfur-containing structures. Photocatalysis of these compounds with visible light enables to achieve various transformations under mild conditions. This review summarizes visible-light-induced reactions of sulfinic acids and their salts. It is organized by reaction type and brief discussions on plausible reaction mechanisms for typical transformations are presented.1 Introduction2 Sulfonylation Reactions2.1 Sulfonylation of Alkenes2.2 Sulfonylation of Alkynes2.3 Sulfonylation of Arenes2.4 sp3 C–H Functionalization3 Desulfonylation Reactions4 Sulfenylation Reactions4.1 Sulfenylation of Heteroarenes4.2 Sulfenylation of Carbonyl Chlorides5 Conclusions
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Affiliation(s)
- Hongjian Lu
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University
| | - Zheng Lu
- School of Pharmacy, Jiangsu University
| | - Mingzhou Shang
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University
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24
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Yu Q, Yu KY, Xu CF, Wong MK. Visible light photocatalytic one pot synthesis of Z-arylvinyl halides from E-arylvinyl acids with N-halosuccinimide. RSC Adv 2022; 12:3931-3934. [PMID: 35425457 PMCID: PMC8981174 DOI: 10.1039/d1ra08753c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/17/2022] [Indexed: 12/22/2022] Open
Abstract
An efficient visible light photocatalytic strategy to synthesize thermodynamically less stable Z-arylvinyl halides (with up to >99/1 Z/E ratio and 86% yield) was developed. The reaction combined base-mediated halodecarboxylation of E-arylvinyl acids with N-halosuccinimide and visible light Ir-photocatalyzed isomerization of E-arylvinyl halides in a one pot sequential catalytic process.
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Affiliation(s)
- Qiong Yu
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057 China
| | - Kun Yi Yu
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057 China
| | - Cai Feng Xu
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057 China
| | - Man-Kin Wong
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057 China.,State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hum Hong Kong China
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25
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Ramani A, Desai B, Dholakiya BZ, Naveen T. Recent advances in visible-light mediated functionalization of olefins and alkynes using copper catalysts. Chem Commun (Camb) 2022; 58:7850-7873. [DOI: 10.1039/d2cc01611g] [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
Over the past decade, visible-light photoredox catalysis has blossomed as a powerful strategy and offers a discrete activation mode complementary to thermal controlled reactions. Visible-light-mediated photoredox catalysis also offers exciting...
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26
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Sack D, Wagenknecht H. The Concept of Photozymes: Short Peptides with Photoredox Catalytic Activity for Nucleophilic Additions to α‐Phenyl Styrenes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101068] [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)
- Daniel Sack
- Institute of Organic Chemistry Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 16 76131 Karlsruhe Germany
| | - Hans‐Achim Wagenknecht
- Institute of Organic Chemistry Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 16 76131 Karlsruhe Germany
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27
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Fu X, Si Y, Qiao L, Zhao Y, Chen X, Yu B. Visible Light‐Promoted Recyclable Carbon Nitride‐Catalyzed Dioxygenation of
β
,
γ
‐Unsaturated Oximes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiao‐Yang Fu
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Ya‐Feng Si
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Li‐Peng Qiao
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yu‐Fen Zhao
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Xiao‐Lan Chen
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Bing Yu
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
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28
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Wang L, Xu T, Rao Q, Zhang TS, Hao WJ, Tu SJ, Jiang B. Photocatalytic Biheterocyclization of 1,7-Diynes for Accessing Skeletally Diverse Tricyclic 2-Pyranones. Org Lett 2021; 23:7845-7850. [PMID: 34581592 DOI: 10.1021/acs.orglett.1c02865] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A new and green route to skeletally diverse oxo-heterocyclic architectures such as pyrano[3,4-c]chromen-2-ones and pyrano[3,4-c]quinolin-2-ones is reported via an unprecedented photocatalytic Kharasch-type cyclization/1,5-(SN″)-substitution/elimination/6π-electrocyclization/double nucleophilic substitution cascade starting from easily available heteroatom-linked 1,7-diynes and low-cost CBrCl3. During this reaction process, the full scission of carbon-halogen bonds of BrCCl3 was realized to directly build two new rings, including a lactone scaffold, using H2O as the oxygen source of the ester group.
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Affiliation(s)
- Lu Wang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Ting Xu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Qian Rao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Tian-Shu Zhang
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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29
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Chen X, Zhang G, Li B, Wu L. An integrated giant polyoxometalate complex for photothermally enhanced catalytic oxidation. SCIENCE ADVANCES 2021; 7:eabf8413. [PMID: 34301598 PMCID: PMC8302132 DOI: 10.1126/sciadv.abf8413] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 06/04/2021] [Indexed: 05/11/2023]
Abstract
A strategy integrating near infrared (NIR) photothermal and catalytic effects within one active center beyond ultraviolet and visible light is proposed without the combination of separated photothermal transformation components. A giant polyoxomolybdate, which has high NIR photothermal conversion efficiency, is selected as the model catalyst, while a cationic β-cyclodextrin is used to cover its negatively charged surface electrostatically. Under NIR light radiation, the designed catalyst increases catalytic activity of cyclohexene oxidation under O2 atmosphere in water. The conversion reaches about pentaploid of the reaction without NIR radiation. By excluding heating effect from the external heater at the same temperature, about twice as much enhancement, which can be attributed to the sole photothermal action, is still observed. While the catalytic center is shielded by the organic porous layer, the surface cavity allows the integrated catalyst to conduct a selective catalysis by screening the molecules in size over the surface channel.
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Affiliation(s)
- Xiaofei Chen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Guohua Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Bao Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
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30
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Li Y, Liu H, Huang Z, He Y, Xu BH, Wang H, Yu Z. Visible-Light-Driven, Palladium-Catalyzed Heck Reaction of Internal Vinyl Bromides with Styrenes. J Org Chem 2021; 86:8402-8413. [PMID: 34043916 DOI: 10.1021/acs.joc.1c00838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Functionalized 1,3-dienes were efficiently accessed from visible-light-driven, palladium-catalyzed Heck reaction of S,S-functionalized internal vinyl bromides with styrenes under mild conditions. This Heck reaction showcased tolerance of a wide array of functional groups, afforded the target products in moderate to excellent yields through a radical reaction pathway. The resultant diene products could be further transformed to highly functionalized trisubstituted furan derivatives.
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Affiliation(s)
- Yunlong Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Haibo Liu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, P. R. China
| | - Zilong Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yuan He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bao-Hua Xu
- Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Hongmei Wang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, P. R. China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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31
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Medcalf Z, Moeller KD. Anodic Olefin Coupling Reactions: Elucidating Radical Cation Mechanisms and the Interplay between Cyclization and Second Oxidation Steps. CHEM REC 2021; 21:2442-2452. [PMID: 34117713 DOI: 10.1002/tcr.202100118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/18/2021] [Indexed: 12/13/2022]
Abstract
Anodic olefin coupling reactions generate new bonds and ring skeletons through a net two electron process that reverses the polarity of a known, electron-rich functional group. While much of the early work on the mechanism of these reactions focused on the initial oxidation and cyclization steps of the process, the second oxidation step also plays a central role in determining the success of the reaction. Evidence supporting this observation is presented, along with evidence that optimization of this second oxidation step is not enough to pull a poor cyclization to the desired product. Successful cyclization reactions require optimization of both processes.
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Affiliation(s)
- Zach Medcalf
- Department of Chemistry, Washington University in Saint Louis, One Brookings Drive, 63130-4899, St Louis, MO, USA
| | - Kevin D Moeller
- Department of Chemistry, Washington University in Saint Louis, One Brookings Drive, 63130-4899, St Louis, MO, USA
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32
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Maji K, Rai P, Maji B. Visible‐Light Mediated Metal‐Free Cross‐Electrophile Coupling of Isatin Derivatives with Electron‐Poor Alkenes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kakoli Maji
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
| | - Pramod Rai
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
| | - Biplab Maji
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
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33
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Organophotocatalytic selective deuterodehalogenation of aryl or alkyl chlorides. Nat Commun 2021; 12:2894. [PMID: 34001911 PMCID: PMC8129137 DOI: 10.1038/s41467-021-23255-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/30/2021] [Indexed: 12/23/2022] Open
Abstract
Development of practical deuteration reactions is highly valuable for organic synthesis, analytic chemistry and pharmaceutic chemistry. Deuterodehalogenation of organic chlorides tends to be an attractive strategy but remains a challenging task. We here develop a photocatalytic system consisting of an aryl-amine photocatalyst and a disulfide co-catalyst in the presence of sodium formate as an electron and hydrogen donor. Accordingly, many aryl chlorides, alkyl chlorides, and other halides are converted to deuterated products at room temperature in air (>90 examples, up to 99% D-incorporation). The mechanistic studies reveal that the aryl amine serves as reducing photoredox catalyst to initiate cleavage of the C-Cl bond, at the same time as energy transfer catalyst to induce homolysis of the disulfide for consequent deuterium transfer process. This economic and environmentally-friendly method can be used for site-selective D-labeling of a number of bioactive molecules and direct H/D exchange of some drug molecules. Deuterodehalogenation of organic chlorides is a useful strategy to install deuterium atoms at specific positions, however, it has several drawbacks. In this study, the authors report an organophotocatalytic system consisting of an aryl-amine-based photocatalyst and a common disulfide co-catalyst, for efficient deuteration of a wide range of aryl chlorides, alkyl chlorides and other halides, at room temperature in air.
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34
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Xu C, Shen FQ, Feng G, Jin J. Visible-Light-Induced α-Amino C–H Bond Arylation Enabled by Electron Donor–Acceptor Complexes. Org Lett 2021; 23:3913-3918. [DOI: 10.1021/acs.orglett.1c00984] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chang Xu
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, China
| | - Fang-Qi Shen
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, China
| | - Gaofeng Feng
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, 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, Shanghai 200032, China
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35
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Pokhriyal A, Singh Karki B, Kant R, Rastogi N. Redox-Neutral 1,3-Dipolar Cycloaddition of 2 H-Azirines with 2,4,6-Triarylpyrylium Salts under Visible Light Irradiation. J Org Chem 2021; 86:4661-4670. [PMID: 33677969 DOI: 10.1021/acs.joc.1c00082] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A novel visible light mediated redox-neutral 1,3-dipolar cycloaddition of 2H-azirines with 2,4,6-triarylpyrylium tetrafluoroborate salts providing tetrasubstituted pyrroles has been developed. The 2,4,6-triarylpyrylium salt acts as dipolarophile as well as photosensitizer in the reaction, under blue light irradiation. The control experiments indicated single electron oxidation of 2H-azirines by photoexcited pyrylium salts, followed by coupling between an azaallenyl radical cation and triarylpyranyl radical as the key mechanistic feature. The mild conditions, wide substrate scope, and complete regioselectivity are the noticeable attributes of the reaction.
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Affiliation(s)
| | - Bhupal Singh Karki
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | | | - Namrata Rastogi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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36
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Markos A, Janecký L, Chvojka T, Martinek T, Martinez‐Seara H, Klepetářová B, Beier P. Haloalkenyl Imidoyl Halides as Multifacial Substrates in the Stereoselective Synthesis of
N
‐Alkenyl Compounds. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100009] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Athanasios Markos
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16610 Prague 6 Czech Republic
- Department of Organic Chemistry Faculty of Science Charles University Hlavova 2030/8 CZ-128 43 Prague 2 Czech Republic
| | - Lukáš Janecký
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Tomáš Chvojka
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Tomáš Martinek
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Hector Martinez‐Seara
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Blanka Klepetářová
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Petr Beier
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16610 Prague 6 Czech Republic
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37
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Eosin Y as a direct hydrogen-atom transfer photocatalyst for the C3-H acylation of quinoxalin-2(1H)-ones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152915] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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38
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Kalaitzakis D, Bosveli A, Sfakianaki K, Montagnon T, Vassilikogiannakis G. Multi-Photocatalyst Cascades: Merging Singlet Oxygen Photooxygenations with Photoredox Catalysis for the Synthesis of Alkaloid Frameworks. Angew Chem Int Ed Engl 2021; 60:4335-4341. [PMID: 33119205 DOI: 10.1002/anie.202012379] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/02/2020] [Indexed: 12/13/2022]
Abstract
The development of photocascades that rapidly transform simple and readily accessible furan substrates into polycyclic alkaloid frameworks or erythrina natural products is described. Each of the sequences developed makes use of photocatalyzed energy transfer processes, which generate singlet oxygen, to set up the substrates for the second photocatalyzed reaction, wherein electron transfer generates carbon-centered radicals for the cyclizations that give the final complex frameworks. A chemical switch has been developed that can "switch off" one photocatalyst; thus, allowing a second photocatalyst to take over control of the sequence. As a corollary, this strategy represents the first time it has been possible to use multiple photocatalysts in photocascades, and, as such, it expands significantly the reactions that can be included in such cascades and the order in which they can be initiated.
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Affiliation(s)
- Dimitris Kalaitzakis
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003, Iraklion, Crete, Greece
| | - Artemis Bosveli
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003, Iraklion, Crete, Greece
| | - Kalliopi Sfakianaki
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003, Iraklion, Crete, Greece
| | - Tamsyn Montagnon
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003, Iraklion, Crete, Greece
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39
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Kalaitzakis D, Bosveli A, Sfakianaki K, Montagnon T, Vassilikogiannakis G. Multi‐Photocatalyst Cascades: Merging Singlet Oxygen Photooxygenations with Photoredox Catalysis for the Synthesis of Alkaloid Frameworks. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dimitris Kalaitzakis
- Department of Chemistry University of Crete Vasilika Vouton 71003 Iraklion Crete Greece
| | - Artemis Bosveli
- Department of Chemistry University of Crete Vasilika Vouton 71003 Iraklion Crete Greece
| | - Kalliopi Sfakianaki
- Department of Chemistry University of Crete Vasilika Vouton 71003 Iraklion Crete Greece
| | - Tamsyn Montagnon
- Department of Chemistry University of Crete Vasilika Vouton 71003 Iraklion Crete Greece
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40
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Seyfert F, Mitha M, Wagenknecht H. Nucleophilic Alkoxylations of Unactivated Alkyl Olefins and α‐Methyl Styrene by Photoredox Catalysis. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Fabienne Seyfert
- Institute of Organic Chemistry Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Mathis Mitha
- Institute of Organic Chemistry Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Hans‐Achim Wagenknecht
- Institute of Organic Chemistry Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
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41
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Xu L, Zhu S, Huo L, Chen F, Yu W, Chu L. Radical 1,2-addition of bromoarenes to alkynes via dual photoredox and nickel catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo00365h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A 1,2-addition of aryl bromides to alkynes enabled by the photocatalytic generation of bromine radicals via photoredox and nickel catalysis is reported.
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Affiliation(s)
- Lei Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Liping Huo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Fan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Wei Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
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42
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Abstract
This review highlights the state-of-the-art advances in C(sp3)–H functionalization involving isocyanides through the synergistic combination of isocyanide insertion and C(sp3)–H bond activation.
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Affiliation(s)
- Weixiang Wang
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Tianqi Liu
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Chang-Hua Ding
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Bin Xu
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
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43
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Zhang W, Bu J, Wang L, Li P, Li H. Sunlight-mediated [3 + 2] cycloaddition of azobenzenes with arynes: an approach toward the carbazole skeleton. Org Chem Front 2021. [DOI: 10.1039/d1qo00739d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A mild sunlight-mediated [3 + 2] cycloaddition of azobenzenes with arynes has been established for the construction of the carbazole backbone.
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Affiliation(s)
- Wenjie Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Jiahui Bu
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Lei Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P. R. China
| | - Pinhua Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Hongji Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
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44
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Xiao X, Shao B, Lu Y, Cao Q, Xia C, Chen F. Recent Advances in Asymmetric Organomulticatalysis. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000961] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xiao Xiao
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Bing‐Xuan Shao
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Yin‐Jie Lu
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Qian‐Qian Cao
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Chun‐Nian Xia
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
| | - Fen‐Er Chen
- Institute of Pharmaceutical Science and Technology Zhejiang University of Technology Hangzhou 310014 People's Republic China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules Fudan University Shanghai 200433 People's Republic China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs Shanghai 200433 People's Republic China
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45
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Talukdar R. Tracking down the brominated single electron oxidants in recent organic red-ox transformations: photolysis and photocatalysis. Org Biomol Chem 2020; 18:8294-8345. [PMID: 33020775 DOI: 10.1039/d0ob01652g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A wide range of organic and inorganic brominated compounds including molecular bromine have been extensively used as oxidants in many organic photo-redox transformations in recent years, an area of ever growing interest because of greener and milder approaches. The oxidation power of these compounds is utilized through both mechanistic pathways (by hydrogen atom transfer or HAT in the absence of a photocatalyst and a combination of single electron transfer or SET and/or HAT in the presence of a photocatalyst). Not only as terminal oxidants for regeneration of photocatalysts, but brominated reactants have also contributed to the oxidation of the reaction intermediate(s) to carry on the radical chain process in several reactions. Here in this review mainly the non-brominative oxidative product formations are discussed, carried out since the last two decades, skipping the instances where they acted as terminal oxidants only to regenerate photocatalysts. The reactions are used to generate natural products, pharmaceuticals and beyond.
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Affiliation(s)
- Ranadeep Talukdar
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow-226014, India.
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46
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Xiao Y, Chun YK, Cheng SC, Liu R, Tse MK, Ko CC. Visible light photocatalytic cross-coupling and addition reactions of arylalkynes with perfluoroalkyl iodides. Org Biomol Chem 2020; 18:8686-8693. [PMID: 33078803 DOI: 10.1039/d0ob01767a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Visible light photocatalytic cross-coupling and addition reactions of arylalkynes with perfluoroalkyl iodides have been developed. Through slight modifications of the reaction conditions, reactions that are selective for the preparation of the C-C coupling product (perfluoroalkyl alkynes) and the addition products (iodo-perfluoroalkyl substituted alkenes) can be achieved. These reactions work well with different types of alkynes and perfluoroalkyl iodides. As the iodide generated from the reaction can serve as a reductant to regenerate the photocatalyst from its oxidized form, no sacrificial electron donor is required.
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Affiliation(s)
- Yelan Xiao
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
| | - Yuen-Kiu Chun
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
| | - Shun-Cheung Cheng
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
| | - Ruoyang Liu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
| | - Man-Kit Tse
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
| | - Chi-Chiu Ko
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
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47
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Pagire SK, Kumagai N, Shibasaki M. The Different Faces of [Ru(bpy) 3Cl 2] and fac[Ir(ppy) 3] Photocatalysts: Redox Potential Controlled Synthesis of Sulfonylated Fluorenes and Pyrroloindoles from Unactivated Olefins and Sulfonyl Chlorides. Org Lett 2020; 22:7853-7858. [PMID: 32909759 DOI: 10.1021/acs.orglett.0c02760] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A cascade alkene sulfonylation that simultaneously forges C-S and C-C bonds is a highly efficient and powerful approach for directly accessing structurally diverse sulfonylated compounds in a single operation. The reaction was enabled by visible-light-mediated regioselective radical addition of sulfonyl chlorides to 2-arylstyrenes using fac[Ir(ppy)3] as a photocatalyst, demonstrating its unique role in a photocascade process to execute atom transfer radical addition (ATRA) followed by photocyclization. A new class of sulfonyl-substituted fluorenes and pyrroloindoles, which are useful in the field of photoelectronic materials and medicinal chemistry, was produced in excellent yields by this photocascade reaction. In contrast, the cyclization was interrupted when using the [Ru(bpy)3Cl2] catalyst having lower reduction potential, leading only to the formation of a C-S bond and the production of acyclic sulfonylated 2-arylstyrenes under identical reaction conditions. The synthetic utility of the present room-temperature photocatalysis is enhanced by the broad availability of bench-stable sulfonyl chlorides and unactivated olefins, thereby providing a cost-effective and broad-scope protocol.
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Affiliation(s)
- Santosh K Pagire
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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48
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Choi H, Kim M, Jang J, Hong S. Visible‐Light‐Induced Cysteine‐Specific Bioconjugation: Biocompatible Thiol–Ene Click Chemistry. Angew Chem Int Ed Engl 2020; 59:22514-22522. [DOI: 10.1002/anie.202010217] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Hangyeol Choi
- 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
| | - Myojeong 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
| | - Jaebong Jang
- 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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49
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Choi H, Kim M, Jang J, Hong S. Visible‐Light‐Induced Cysteine‐Specific Bioconjugation: Biocompatible Thiol–Ene Click Chemistry. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Hangyeol Choi
- 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
| | - Myojeong 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
| | - Jaebong Jang
- 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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50
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Moon Y, Lee W, Hong S. Visible-Light-Enabled Ortho-Selective Aminopyridylation of Alkenes with N-Aminopyridinium Ylides. J Am Chem Soc 2020; 142:12420-12429. [DOI: 10.1021/jacs.0c05025] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yonghoon Moon
- 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
| | - Wooseok 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
| | - 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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