1
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Zhou J, Wang W, Zuo F, Liu S, Mosim Amin P, Zhong K, Bai R, Wang Y. Catalyst-Controlled Divergent Generations and Transformations of α-Carbonyl Cations from Alkynes. Angew Chem Int Ed Engl 2023; 62:e202302545. [PMID: 37856619 DOI: 10.1002/anie.202302545] [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: 09/04/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/21/2023]
Abstract
α-Carbonyl cations are the umpolung forms of the synthetically fundamental α-carbonyl carbanions. They are highly reactive yet rarely studied and utilized species and their precursors were rather limited. Herein, we report the catalyst-controlled divergent generations of α-carbonyl cations from single alkyne functionalities and the interception of them via Wagner-Meerwein rearrangement. Two chemodivergent catalytic systems have been established, leading to two different types of α-carbonyl cations and, eventually, two different types of products, i.e. the α,β- and β,γ-unsaturated carbonyl compounds. Broad spectrum of alkynes including aryl alkyne, ynamide, alkynyl ether, and alkynyl sulfide could be utilized and the migration priorities of different groups in the Wagner-Meerwein rearrangement step was elucidated. Density functional theory calculations further supported the intermediacy of α-carbonyl cations via the N-O bond cleavage in both the two catalytic systems. Another key feature of this methodology was the fragmentation of synthetically inert tert-butyl groups into readily transformable olefin functionalities. The synthetic potential was highlighted by the scale-up reactions and the downstream diversifications including the formal synthesis of nicotlactone B and galbacin.
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Affiliation(s)
- Junrui Zhou
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, P. R. China
| | - Weilin Wang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, P. R. China
| | - Fenfang Zuo
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 400030, China
| | - Shupeng Liu
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, P. R. China
| | - Pathan Mosim Amin
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, P. R. China
| | - Kangbao Zhong
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 400030, China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 400030, China
| | - Youliang Wang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University (XJTU), Xi'an, 710049, P. R. China
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2
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Munawar A, Maltz LT, Liu WC, Gabbaï FP. Synthesis of an Indazole/Indazolium Phosphine Ligand Scaffold and Its Application in Gold(I) Catalysis. Organometallics 2023; 42:2742-2746. [PMID: 38357473 PMCID: PMC10863396 DOI: 10.1021/acs.organomet.3c00354] [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: 08/11/2023] [Indexed: 02/16/2024]
Abstract
Advances in ligand development have allowed for the fine-tuning of gold catalysis. To contribute to this field, we designed an indazole phosphine ligand scaffold that allows facile introduction of cationic charge through methylation. With minimal changes to the structure upon methylation, we could assess the importance of the electronic effects of the insertion of a positive charge on the catalytic activity of the resulting gold(I) complex. Using the benchmark reactions of propargyl amide cyclization and enyne cyclization with and without hexafluoroisopropanol (HFIP), we observed marked differences in the catalytic activities of the neutral and cationic gold species.
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Affiliation(s)
- Asima Munawar
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843, United States
| | - Logan T. Maltz
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843, United States
| | - Wei-Chun Liu
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843, United States
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843, United States
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3
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Xu J, Li Y, Zhu X, Lv S, Xu Y, Cheng T, Liu G, Liu R. Pyridinium-Masked Enol as a Precursor for Constructing Alpha-Fluoromethyl Ketones. Org Lett 2023; 25:6211-6216. [PMID: 37584477 DOI: 10.1021/acs.orglett.3c02419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
We present herein a pyridinium-masked enol as a versatile platform to produce ketones bearing tri-, di-, and monofluoromethyl in the presence of [Ir(dF(Me)ppy)]2(dtbbpy)]PF6 under blue light (455 nm) irradiation. By simply changing the F-source, α-trifluoromethyl ketones, α-difluoromethyl ketones, and α-monofluoromethyl ketones could be easily prepared in moderate to excellent yields in one step, making it a practical tool for the synthesis of fluorine-containing ketones. In addition, the pyridinium-masked enol could also be extended to the synthesis of sulfonyl ketones. The findings of the present protocol contribute to the arsenal of fluorine chemistry and might have potential applications in the pharmaceutical and agrochemical industries.
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Affiliation(s)
- Jijun Xu
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 201418, China
| | - Yi Li
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 201418, China
| | - Xuanyu Zhu
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 201418, China
| | - Shisong Lv
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 201418, China
| | - Yiming Xu
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 201418, China
| | - Tanyu Cheng
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 201418, China
| | - Guohua Liu
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 201418, China
| | - Rui Liu
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 201418, China
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4
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Dong G, Jiang M, Wu N, Zhang S, Zhu H, Xu Z. An umpolung strategy for chemically selective intermolecular cross-enolate-type coupling of N-alkenoxypyridinium salts with aldehydes. Chem Commun (Camb) 2023; 59:3594-3597. [PMID: 36883526 DOI: 10.1039/d3cc00422h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
An efficient method for the synthesis of 1,4-ketoaldehydes via the cross-coupling of N-alkenoxyheteroarenium salts and primary aldehydes is developed. This method provides a broad substrate scope and excellent functional group compatibility. The utility of this method is demonstrated via the diverse transformations of heterocyclic compounds and cycloheptanone, as well as the late-stage functionalization of biorelevant molecules.
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Affiliation(s)
- Guichao Dong
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Mengfei Jiang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Nan Wu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Shengxiang Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Huilong Zhu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Zhou Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
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5
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Triflamides and Triflimides: Synthesis and Applications. Molecules 2022; 27:molecules27165201. [PMID: 36014447 PMCID: PMC9414225 DOI: 10.3390/molecules27165201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/24/2022] Open
Abstract
Among the variety of sulfonamides, triflamides (CF3SO2NHR, TfNHR) occupy a special position in organic chemistry. Triflamides are widely used as reagents, efficient catalysts or additives in numerous reactions. The reasons for the widespread use of these compounds are their high NH-acidity, lipophilicity, catalytic activity and specific chemical properties. Their strong electron-withdrawing properties and low nucleophilicity, combined with their high NH-acidity, makes it possible to use triflamides in a vast variety of organic reactions. This review is devoted to the synthesis and use of N-trifluoromethanesulfonyl derivatives in organic chemistry, medicine, biochemistry, catalysis and agriculture. Part of the work is a review of areas and examples of the use of bis(trifluoromethanesulfonyl)imide (triflimide, (CF3SO2)2NH, Tf2NH). Being one of the strongest NH-acids, triflimide, and especially its salts, are widely used as catalysts in cycloaddition reactions, Friedel–Crafts reactions, condensation reactions, heterocyclization and many others. Triflamides act as a source of nitrogen in C-amination (sulfonamidation) reactions, the products of which are useful building blocks in organic synthesis, catalysts and ligands in metal complex catalysis, and have found applications in medicine. The addition reactions of triflamide in the presence of oxidizing agents to alkenes and dienes are considered separately.
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6
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Motiwala HF, Armaly AM, Cacioppo JG, Coombs TC, Koehn KRK, Norwood VM, Aubé J. HFIP in Organic Synthesis. Chem Rev 2022; 122:12544-12747. [PMID: 35848353 DOI: 10.1021/acs.chemrev.1c00749] [Citation(s) in RCA: 117] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
1,1,1,3,3,3-Hexafluoroisopropanol (HFIP) is a polar, strongly hydrogen bond-donating solvent that has found numerous uses in organic synthesis due to its ability to stabilize ionic species, transfer protons, and engage in a range of other intermolecular interactions. The use of this solvent has exponentially increased in the past decade and has become a solvent of choice in some areas, such as C-H functionalization chemistry. In this review, following a brief history of HFIP in organic synthesis and an overview of its physical properties, literature examples of organic reactions using HFIP as a solvent or an additive are presented, emphasizing the effect of solvent of each reaction.
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Affiliation(s)
- Hashim F Motiwala
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Ahlam M Armaly
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jackson G Cacioppo
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Thomas C Coombs
- Department of Chemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28403 United States
| | - Kimberly R K Koehn
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Verrill M Norwood
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jeffrey Aubé
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
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7
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Bykhovskaya OV, Kudryavtsev IY, Baulina TV, Pasechnik MP, Vologzhanina AV, Matveeva AG, Moiseeva AA, Brel VK. Unsymmetrical Tripodal Phosphine Oxide with Triazole Groups: Synthesis and Molecular Structure. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222080084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Miao R, Huang J, Xia Y, Wei Y, Luo R, Ouyang L. Selective Synthesis of Ketones and Chiral Allylic Alcohols from the Addition of Arylboronic Acids to α,β-Unsaturated Aldehydes Mediated by a Transition Metal/Monophosphorus Ligand System. J Org Chem 2022; 87:8576-8588. [PMID: 35713157 DOI: 10.1021/acs.joc.2c00703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Here, we demonstrated a transition metal-mediated/monophosphorus ligand system for the selective synthesis of ketones or chiral allylic alcohols in high yields/enantiomeric excess from the 1,2-addition of arylboronic acids to α,β-unsaturated aldehydes. Notably, isomerization of the chiral allylic alcohols to ketones was suppressed by the Ru-catalyzed/monophosphorus ligand system. The asymmetric catalytic system provides an alternative and efficient method of preparing chiral allylic alcohols.
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Affiliation(s)
- Rui Miao
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Jinyong Huang
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Yanping Xia
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China
| | - YiFei Wei
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Renshi Luo
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China.,College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, Guangdong Province, P. R. China
| | - Lu Ouyang
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, Jiangxi Province, P. R. China
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9
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Zhang R, Xia Y, Yan Y, Ouyang L. Cu-catalyzed, Mn-mediated propargylation and allenylation of aldehydes with propargyl bromides. BMC Chem 2022; 16:14. [PMID: 35303949 PMCID: PMC8933908 DOI: 10.1186/s13065-022-00803-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/22/2022] [Indexed: 11/10/2022] Open
Abstract
A simple, practical, and high chemo-selective method for the synthesis of propargyl alcohol and allenyl alcohols via Cu-catalyzed, Mn-mediated propargylation and allenylation of aldehydes with propargyl bromides has been established. When 3-bromo-1-propyne was conducted under the standard condition, the aldehydes were transformed to the corresponding propargylation products completely, while when 1-bromo-2-pentyne was used, allenic alcohol was the only product. Variety of homopropargyl alcohols and allenyl alcohols were obtained in high yields and the reaction is compatible with broad substrate scopes. In addition, the large-scale reaction could also be proceeded smoothly indicating the potential synthetic applications of this transformation.
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Affiliation(s)
- Rongli Zhang
- Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, China.
| | - Yanping Xia
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, China
| | - Yuchen Yan
- Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, China
| | - Lu Ouyang
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, 341000, China.
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10
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Sheng H, Liu Q, Chen F, Wang Z, Chen X. Visible-light-induced N-heterocyclic carbene mediated cascade transformation of N-alkenoxypyridinium salts. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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11
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Griffiths OM, Esteves HA, Chen Y, Sowa K, May OS, Morse P, Blakemore DC, Ley SV. Photoredox-Catalyzed Dehydrogenative Csp 3-Csp 2 Cross-Coupling of Alkylarenes to Aldehydes in Flow. J Org Chem 2021; 86:13559-13571. [PMID: 34524825 DOI: 10.1021/acs.joc.1c01621] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Executing photoredox reactions in flow offers solutions to frequently encountered issues regarding reproducibility, reaction time, and scale-up. Here, we report the transfer of a photoredox-catalyzed benzylic coupling of alkylarenes to aldehydes to a flow chemistry setting leading to improvements in terms of higher concentration, shorter residence times, better yields, ease of catalyst preparation, and enhanced substrate scope. Its applicability has been demonstrated by a multi-gram-scale reaction using high-power light-emitting diodes (LEDs), late-stage functionalization of selected active pharmaceutical ingredients (APIs), and also a photocatalyst recycling method.
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Affiliation(s)
- Oliver M Griffiths
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
| | - Henrique A Esteves
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
| | - Yiding Chen
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
| | - Karin Sowa
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K.,Department of Chemistry, University of Münster, 48149 Münster, Germany
| | - Oliver S May
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
| | - Peter Morse
- Medicine Design, Pfizer, Inc., Groton, Connecticut 06340, United States
| | - David C Blakemore
- Medicine Design, Pfizer, Inc., Groton, Connecticut 06340, United States
| | - Steven V Ley
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
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12
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Morita N, Tamura O. Strategic Use of Difference of Valence of Gold Catalysts: Development of Cyclization Reactions Oriented toward Synthetic Diversity Using Propargylic Alcohols. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.652] [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]
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13
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Zheng Z, Ma X, Cheng X, Zhao K, Gutman K, Li T, Zhang L. Homogeneous Gold-Catalyzed Oxidation Reactions. Chem Rev 2021; 121:8979-9038. [DOI: 10.1021/acs.chemrev.0c00774] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhitong Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xu Ma
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xinpeng Cheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Ke Zhao
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Kaylaa Gutman
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Tianyou Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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14
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Nejrotti S, Prandi C. Gold Catalysis and Furans: A Powerful Match for Synthetic Connections. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1705996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
AbstractThis review summarizes the advances made on the synthesis and functionalization of furans via gold catalysis during the period between 2016 and 2020. A separate section is dedicated to the tandem gold-catalyzed synthesis and functionalization of furans.1 Introduction2 Gold-Catalyzed Synthesis of Furans2.1 Cycloisomerizations of Alkynyl and Cumulenyl Alcohols2.2 Cycloisomerizations of Alkynyl and Allenyl Ketones2.3 Reactions with External Oxidants2.4 Miscellaneous3 Gold-Catalyzed Functionalization of Furans3.1 Cycloadditions3.2 Furan Ring Decorations3.3 Reactions Involving Furan Ring Opening4 Gold-Catalyzed Tandem Synthesis and Functionalization of Furans4.1 Cycloisomerizations Followed by Gold-Catalyzed Cycloaddition4.2 Cycloisomerizations to a Gold 1,3- or 1,4-Dipole and Intermolecular Annulation4.3 Cycloisomerizations to a Gold Carbene and Intermolecular Trapping5 Conclusion
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15
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Mathi GR, Kweon B, Moon Y, Jeong Y, Hong S. Regioselective C−H Functionalization of Heteroarene
N
‐Oxides Enabled by a Traceless Nucleophile. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gangadhar Rao Mathi
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Byeongseok Kweon
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Yonghoon Moon
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Yujin Jeong
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
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16
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Mathi GR, Kweon B, Moon Y, Jeong Y, Hong S. Regioselective C-H Functionalization of Heteroarene N-Oxides Enabled by a Traceless Nucleophile. Angew Chem Int Ed Engl 2020; 59:22675-22683. [PMID: 32888227 DOI: 10.1002/anie.202010597] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/24/2020] [Indexed: 11/05/2022]
Abstract
Although N-alkenoxyheteroarenium salts have been widely used as umpoled synthons with nucleophilic (hetero)arenes, the use of electron-poor heteroarenes has remained unexplored. To overcome the inherent electron deficiency of quinolinium salts, a traceless nucleophile-triggered strategy was designed, wherein the quinolinium segment is converted into a dearomatized intermediate, thereby allowing simultaneous C8-functionalization of quinolines at room temperature. Experimental and computational studies support the traceless operation of a nucleophile, which enables the previously inaccessible transformation of N-alkenoxyheteroarenium salts. Remarkably, the generality of this strategy has been further demonstrated by broad applications in the regioselective C-H functionalization of other electron-deficient heteroarenes such as phenanthridine, isoquinoline, and pyridine N-oxides, offering a practical tool for the late-stage functionalization of complex biorelevant molecules.
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Affiliation(s)
- Gangadhar Rao Mathi
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Byeongseok Kweon
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Yonghoon Moon
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Yujin Jeong
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
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17
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Wu N, Li C, Mi J, Zheng Y, Xu Z. A Strategy for Amide to β-Oxo Ester Transformation via N-Alkenoxypyridinium Salts as the Activator and H2O as the Nucleophile. Org Lett 2020; 22:7118-7122. [DOI: 10.1021/acs.orglett.0c02457] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nan Wu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Chuang Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Jiajia Mi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Yan Zheng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Zhou Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
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18
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Sheng H, Liu Q, Su XD, Lu Y, Wang ZX, Chen XY. Visible-Light-Triggered Iodinations Facilitated by Weak Electrostatic Interaction of N-Heterocyclic Carbenes. Org Lett 2020; 22:7187-7192. [DOI: 10.1021/acs.orglett.0c02523] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- He Sheng
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Qiang Liu
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Di Su
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Lu
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Xiang Wang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xiang-Yu Chen
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
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19
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Liu Q, Zhang CS, Sheng H, Enders D, Wang ZX, Chen XY. Site-Selective Pyridyl Alkyl Ketone Synthesis from N-Alkenoxypyridiniums through Boekelheide-Type Rearrangements. Org Lett 2020; 22:5617-5621. [DOI: 10.1021/acs.orglett.0c01984] [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)
- Qiang Liu
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Chao-Shen Zhang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - He Sheng
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Dieter Enders
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Zhi-Xiang Wang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xiang-Yu Chen
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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20
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Mathi GR, Jeong Y, Moon Y, Hong S. Photochemical Carbopyridylation of Alkenes Using
N
‐Alkenoxypyridinium Salts as Bifunctional Reagents. Angew Chem Int Ed Engl 2020; 59:2049-2054. [DOI: 10.1002/anie.201913320] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/11/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Gangadhar Rao Mathi
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Yujin Jeong
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Yonghoon Moon
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
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21
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Mathi GR, Jeong Y, Moon Y, Hong S. Photochemical Carbopyridylation of Alkenes Using
N
‐Alkenoxypyridinium Salts as Bifunctional Reagents. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913320] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Gangadhar Rao Mathi
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Yujin Jeong
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Yonghoon Moon
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 Republic of Korea
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
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22
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Zhou X, Zhou Y, Zhu Q, Chen H, Wu N, Wen X, Xu Z. Synthesis of (1 E,3 E)-1,4-diarylbuta-1,3-dienes promoted by μ-OMs palladium-dimer complex. BMC Chem 2019; 13:39. [PMID: 31384787 PMCID: PMC6661770 DOI: 10.1186/s13065-019-0561-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 03/20/2019] [Indexed: 11/10/2022] Open
Abstract
A convenient approach for (1E,3E)-1,4-diarylbuta-1,3-dienes via intermolecular Heck reaction of olefins and β-bromostyrenes promoted by μ-OMs palladium-dimer complex has been successfully developed. The products 1,4-conjugated dienes could be obtained with good yield (up to 82%). The catalyst system has excellent chemical selectivity and group tolerance which could supply an alternative way to gain the valuable biaryl linkage building blocks. Furthermore, fluorescence studies of dienes showed that some of them may have potential applications as luminescent clusters.
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Affiliation(s)
- Xueliang Zhou
- School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province China
| | - Yuan Zhou
- School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province China
| | - Qiang Zhu
- School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province China
| | - Huimin Chen
- School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province China
| | - Nan Wu
- School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province China
| | - Xiangru Wen
- School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province China
| | - Zhou Xu
- School of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province China
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23
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Tang X, Wu N, Zhai R, Wu Z, Mi J, Luo R, Xu Z. Silver(i)-catalyzed addition of pyridine-N-oxides to alkynes: a practical approach for N-alkenoxypyridinium salts. Org Biomol Chem 2019; 17:966-972. [PMID: 30632594 DOI: 10.1039/c8ob02907e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A smooth catalytic approach to N-alkenoxypyridinium salts by using pyridine-N-oxides as the nucleophilic partner with alkynes under acidic conditions has been developed. This method uses different Ag(i) salts, with 5% AgOAc being the most efficient, to provide an efficient, practical and alternative way to obtain valuable N-alkenoxypyridinium salts with good to excellent yields (up to 93%).
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Affiliation(s)
- Xiaodong Tang
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, China.
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24
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Duchemin C, Cramer N. One-step access to N-enoxyimides by gold-catalysed addition of N-hydroxyimides to terminal alkynes. Org Chem Front 2019. [DOI: 10.1039/c8qo01179f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A gold(i)trifluoroacetate complex promotes direct additions of N-hydroxyimides to a wide variety of terminal alkynes yielding synthetically valuable N-enoxyimides.
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Affiliation(s)
- Coralie Duchemin
- Laboratory of Asymmetric Catalysis and Synthesis
- EPFL SB ISIC LCSA
- CH-1015 Lausanne
- Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis
- EPFL SB ISIC LCSA
- CH-1015 Lausanne
- Switzerland
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25
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Xia X, Chen B, Zeng X, Xu B. Synthesis of α-amino ketones through aminations of umpoled enolates. Org Biomol Chem 2018; 16:6918-6922. [DOI: 10.1039/c8ob02004c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient synthesis of α-amino ketones is developed using the umpolung strategy.
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Affiliation(s)
- Xiaowen Xia
- Key Laboratory of Science and Technology of Eco-Textiles
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Bocheng Chen
- Key Laboratory of Science and Technology of Eco-Textiles
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Xiaojun Zeng
- Key Laboratory of Science and Technology of Eco-Textiles
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textiles
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
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