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Nishikata T. α-Halocarbonyls as a Valuable Functionalized Tertiary Alkyl Source. ChemistryOpen 2024:e202400108. [PMID: 38989712 DOI: 10.1002/open.202400108] [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: 04/03/2024] [Revised: 05/21/2024] [Indexed: 07/12/2024] Open
Abstract
This review introduces the synthetic organic chemical value of α-bromocarbonyl compounds with tertiary carbons. This α-bromocarbonyl compound with a tertiary carbon has been used primarily only as a radical initiator in atom transfer radical polymerization (ATRP) reactions. However, with the recent development of photo-radical reactions (around 2010), research on the use of α-bromocarbonyl compounds as tertiary alkyl radical precursors became popular (around 2012). As more examples were reported, α-bromocarbonyl compounds were studied not only as radicals but also for their applications in organometallic and ionic reactions. That is, α-bromocarbonyl compounds act as nucleophiles as well as electrophiles. The carbonyl group of α-bromocarbonyl compounds is also attractive because it allows the skeleton to be converted after the reaction, and it is being applied to total synthesis. In our survey until 2022, α-bromocarbonyl compounds can be used to perform a full range of reactions necessary for organic synthesis, including multi-component reactions, cross-coupling, substitution, cyclization, rearrangement, stereospecific reactions, asymmetric reactions. α-Bromocarbonyl compounds have created a new trend in tertiary alkylation, which until then had limited reaction patterns in organic synthesis. This review focuses on how α-bromocarbonyl compounds can be used in synthetic organic chemistry.
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Affiliation(s)
- Takashi Nishikata
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi, 755-8611, Japan
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2
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Ghosh A, Kondalarao K, Saha A, Gandon V, Sahoo AK. A Three-Component Arene Difunctionalization: Merger of C(sp 3 )/(sp 2 )-H Bond Addition. Angew Chem Int Ed Engl 2023:e202314395. [PMID: 37856699 DOI: 10.1002/anie.202314395] [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: 09/26/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/21/2023]
Abstract
A tandem three-component C-H bond addition involving the activation of an inert C(sp3 )-H bond is reported. The process enables the direct regioselective synthesis of 1,2-difunctionalized arenes with the formation of C(sp3 )- and C(sp2 )-C(arene) bonds. 2-Iodobenzoic acid derivatives behave as masked bifunctional reagent (BFR) and react with 2-pyridyl-methyl sulfoximine (MPyS) protected aliphatic acids bearing α,α-disubstituted groups, and alkenes to produce β-aryl-δ-alkenyl amide derivatives in a single operation. The transformation involves Pd(II)/Pd(IV) and Pd(II)/Pd(0) catalytic systems. Detailed mechanistic studies, including density functional theory (DFT) calculations, reveal the formation of large T-shaped palladacycles and the onset of a 1,2-palladium migration via decarboxylation.
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Affiliation(s)
- Arghadip Ghosh
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, Telangana, India
| | - Koneti Kondalarao
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, Telangana, India
| | - Arijit Saha
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, Telangana, India
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Université Paris-Saclay, Bâtiment Henri Moissan, 17 avenue des Sciences, 91400, Orsay, France
| | - Akhila K Sahoo
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, Telangana, India
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3
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Shao C, Xu T, Chen C, Yang Q, Tang C, Chen P, Lu M, Hu Z, Hu H, Zhang T. Copper-catalyzed selective C5-H bromination and difluoromethylation of 8-aminoquinoline amides using ethyl bromodifluoroacetate as the bifunctional reagent. RSC Adv 2023; 13:6993-6999. [PMID: 36874938 PMCID: PMC9977446 DOI: 10.1039/d3ra00088e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/13/2023] [Indexed: 03/05/2023] Open
Abstract
A simple and effective method for the copper-catalyzed selective C5-H bromination and difluoromethylation of 8-aminoquinoline amides with ethyl bromodifluoroacetate as the bifunctional reagent was developed. The combination of cupric catalyst and alkaline additive results in a C5-bromination reaction, whereas cuprous catalyst combined with silver additive results in the C5-difluoromethylation reaction. This method has a broad substrate scope and allows for easy and convenient access to desired C5-functionalized quinolones with good to excellent yields.
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Affiliation(s)
- Changdong Shao
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Tianyi Xu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Chen Chen
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Qionglin Yang
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Chao Tang
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Ping Chen
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Mingzhu Lu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Zhengsong Hu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Huayou Hu
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
| | - Tingting Zhang
- Jiangsu Provincial Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University Huai'an 223300 Jiangsu China
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4
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Bao ZP, Zhang Y, Wu XF. Palladium-catalyzed difluoroalkylative carbonylation of styrenes toward difluoropentanedioates. Chem Sci 2022; 13:9387-9391. [PMID: 36093028 PMCID: PMC9384137 DOI: 10.1039/d2sc02665a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/21/2022] [Indexed: 11/25/2022] Open
Abstract
The introduction of fluorine atoms into organic molecules is an attractive but challenging topic. In this work, an interesting palladium-catalyzed difluoroalkylative carbonylation of aryl olefins has been developed. A wide range of aryl olefins were transformed into the corresponding difluoropentanedioate compounds with good functional-group tolerance and excellent regioselectivity. Inexpensive ethyl bromodifluoroacetate acts both as a difluoroalkyl precursor and a nucleophile here. Additionally, a scale-up reaction was also performed successfully, and further transformations of the obtained product were shown as well.
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Affiliation(s)
- Zhi-Peng Bao
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 116023 Dalian Liaoning China
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 1 8059 Rostock Germany
| | - Youcan Zhang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 116023 Dalian Liaoning China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 116023 Dalian Liaoning China
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 1 8059 Rostock Germany
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Brandes DS, Ellman JA. C-H bond activation and sequential addition to two different coupling partners: a versatile approach to molecular complexity. Chem Soc Rev 2022; 51:6738-6756. [PMID: 35822540 PMCID: PMC9364435 DOI: 10.1039/d2cs00012a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Sequential multicomponent C-H bond addition is a powerful approach for the rapid, modular generation of molecular complexity in a single reaction. In this approach, C-H bonds are typically added across π-bonds or π-bond isosteres, followed by subsequent coupling to another type of functionality, thereby forming two σ-bonds in a single reaction sequence. Many sequential C-H bond addition reactions have been developed to date, including additions across both conjugated and isolated π-systems followed by coupling with reactants such as carbonyl compounds, cyanating reagents, aminating reagents, halogenating reagents, oxygenating reagents, and alkylating reagents. These atom-economical reactions transform ubiquitous C-H bonds under mild conditions to more complex structures with a high level of regiochemical and stereochemical control. Surprising connectivities and diverse mechanisms have been elucidated in the development of these reactions. Given the large number of possible combinations of coupling partners, there are enormous opportunities for the discovery of new sequential C-H bond addition reactions.
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Affiliation(s)
- Daniel S Brandes
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, Connecticut 06520, USA.
| | - Jonathan A Ellman
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, Connecticut 06520, USA.
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Shi WY, Li HY, Gou XY, Luan YY, Zheng N, Zhang Z, Niu ZJ, Liu XY, Liang YM. Synthesis of C‐Aryl Glycosides via Ru‐catalyzed remote C‐H Glycosylation of 8‐Aminoquinoline Amides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200549] [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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Luan YY, Gou XY, Shi WY, Liu HC, Chen X, Liang YM. Three-Component Ruthenium-Catalyzed meta-C-H Alkylation of Phenol Derivatives. Org Lett 2022; 24:1136-1140. [PMID: 35084198 DOI: 10.1021/acs.orglett.1c04182] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, we realized the multicomponent reactions of phenol derivatives via a six-membered cycloruthenated intermediate for the first time. This strategy exhibited good substrate suitability and functional group tolerance with various phenol derivatives and provided a potential synthetic drug approach. Mechanistic studies showed that a radical might be involved in this process. In addition, the meta alkylated phenol was obtained by further removal of the directing group.
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Affiliation(s)
- Yu-Yong Luan
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Ya Gou
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Wei-Yu Shi
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
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Zhang Y, Chen Y, Sun J, Wang J, Zhou M. Visible‐light‐promoted Radical Cyclization/Arylation Cascade for the Construction of
α,
α
‐Difluoro‐
γ
‐Lactam‐Fused
Quinoxalin‐2(
1
H
)‐Ones. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100787] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yun‐Chao Zhang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Yang Chen
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Jing Sun
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Jing‐Yun Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Ming‐Dong Zhou
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
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9
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Jia X, Zhang Z, Gevorgyan V. Three-Component Visible-Light-Induced Palladium-Catalyzed 1,2-Alkyl Carbamoylation/Cyanation of Alkenes. ACS Catal 2021; 11:13217-13222. [PMID: 35450399 DOI: 10.1021/acscatal.1c04183] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A mild visible-light-induced Pd-catalyzed one-pot three-component alkyl-carbamoylation and cyanation of alkenes was developed. This general transformation, which proceeds via the in situ formation of a reactive ketenimine intermediate, allows for a rapid construction of a broad range of valuable amides and nitriles from readily available alkenes, alkyl iodides, and isocyanides. An efficient synthesis of tetrazole and amidine via this approach was also demonstrated.
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Affiliation(s)
- Xiangqing Jia
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080-3021, United States
| | - Ziyan Zhang
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080-3021, United States
| | - Vladimir Gevorgyan
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080-3021, United States
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10
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Zhao Y, Ju G, Tu G. Recent Advances in Transition-Metal-Catalyzed Selective C–H Alkoxycarbonyldifluoromethylation Reactions of Aromatic Substrates. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1522-7460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractFluorine is well-known as a very special element. Approximately 30% of agrochemicals and 20% of all drugs contain fluorine; most of those compounds have unique functions in biochemistry, pharmacy, and bioscience and those containing alkoxycarbonyldifluoromethyl functional groups often have irreplaceable roles. Therefore, the selective introduction of alkoxycarbonyldifluoromethylated functional groups into various aromatic substrates has significant practical application. This review describes recent advances in selective alkoxycarbonyldifluoromethylation of aromatic substrates by using different catalytic strategies (cyclometalated ruthenium complex, transient regulating and visible-light-induced strategies).1 Introduction2 para-C–H Alkoxycarbonyldifluoromethylation of Aromatic Derivatives2.1 Ruthenium Catalysis2.2 Palladium Catalysis2.3 Visible-Light Catalysis2.4 Iron Catalysis3 meta-C–H Alkoxycarbonyldifluoromethylation of Aromatic Derivatives3.1 Ruthenium Catalysis3.2 Palladium Catalysis4 The Influence of Transition Metals and Directing Groups on Site Selectivity of Alkoxycarbonyldifluoromethylation4.1 The Influence of Directing Groups on the Site Selectivity of Alkoxycarbonyldifluoromethylation4.2 The Influence of Transition Metals on the Site Selectivity of Alkoxycarbonyldifluoromethylation5 Conclusions
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Affiliation(s)
- Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University
- School of Chemistry and Chemical Engineering, Henan Normal University
| | - Guodong Ju
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University
| | - Guanglian Tu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University
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