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Tambe SD, Hwang HS, Park E, Cho EJ. Dual Photoredox and Nickel Catalysis in Regioselective Diacylation: Exploring the Versatility of Nickel Oxidation States in Allene Activation. Org Lett 2024; 26:4147-4151. [PMID: 38722196 DOI: 10.1021/acs.orglett.4c01373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
We present a nickel-catalyzed regioselective radical diacylation of allenes with ketoacids to produce 1,4-dione products by dual photoredox and nickel catalysis. This integrated approach merges redox-active oxidative addition and reductive elimination steps with migratory insertion. The acyl radical generated in the photoredox cycle sequentially adds to Ni(I) and Ni(II) intermediates following a Ni(I)-Ni(II)-Ni(II)-Ni(III)-Ni(I) catalytic cycle. This methodology, supported by DFT calculations, demonstrates the potential of nickel catalysis in the creation of complex molecular architectures.
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Affiliation(s)
- Shrikant D Tambe
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Ho Seong Hwang
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Eunhui Park
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Eun Jin Cho
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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2
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Choi W, Kim L, Hong S. Unraveling the Potential of Vinyl Ether as an Ethylene Surrogate in Heteroarene C─H Functionalization via the Spin-Center Shift. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309800. [PMID: 38477022 PMCID: PMC11109664 DOI: 10.1002/advs.202309800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/22/2024] [Indexed: 03/14/2024]
Abstract
Despite the simplicity and abundance of ethylene, its practical application presents significant hurdles due to its nature as a highly flammable gas. Herein, a strategic use of easily handled vinyl ether is reported as a latent ethylene surrogate achieved via a spin-center shift (SCS) pathway, enabling the successful three-component reaction that bridges heteroarenes and various coupling partners, including sulfinates, thiols, and phosphine oxides. Through a photoredox catalytic process, α-oxy radicals are generated by combining various radicals with phenyl vinyl ether, which are subsequently added to N-heteroarenes. Subsequently, the radical-mediated SCS pathway serves as the driving force for C─O bond cleavage, effectively engaging the phenoxy group as a leaving group. In addition, by broadening the utility of the method, a valuable synthon is provided for efficient C─H vinylation of N-heteroarenes following sulfonyl group elimination. This approach not only enriches the toolbox of synthetic methodology but also provides a more streamlined alternative, circumventing the challenges associated with direct ethylene gas usage. The versatility of the method, particularly evident in late-stage functionalizations of medicinally relevant molecules and peptides, underscores its capability to produce invaluable three-component compounds and vinylated N-heteroarene derivatives.
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Affiliation(s)
- Wonjun Choi
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141Republic of Korea
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS)Daejeon34141Republic of Korea
| | - Leejae Kim
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141Republic of Korea
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS)Daejeon34141Republic of Korea
| | - Sungwoo Hong
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141Republic of Korea
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS)Daejeon34141Republic of Korea
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3
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Zhong K, Liu S, He X, Ni H, Lai W, Gong W, Shan C, Zhao Z, Lan Y, Bai R. Oxidative cyclopalladation triggers the hydroalkylation of alkynes. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Maurya RK, Bhukta S, Kishor K, Chatterjee R, Burra AG, Khatravath M, Dandela R. Recent progress towards transition-metal-catalyzed arylative cyclization/annulation reactions with boronic acids. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Miyazaki R, Iida K, Ohno S, Matsuzaki T, Suzuki T, Arisawa M, Hasegawa JY. Substrate-Assisted Reductive Elimination Determining the Catalytic Cycle: A Theoretical Study on the Ni-Catalyzed 2,3-Disubstituted Benzofuran Synthesis via C–O Bond Activation. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00419] [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]
Affiliation(s)
- Ray Miyazaki
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195Berlin, Germany
| | - Kenji Iida
- Institute for Catalysis, Hokkaido University, N21 W10 Kita-ku, Sapporo001-0021, Hokkaido, Japan
| | - Shohei Ohno
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita565-0871, Osaka, Japan
| | - Tsuyoshi Matsuzaki
- Comprehensive Analysis Centre, SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka 8-1, Ibaraki567-0047, Osaka, Japan
| | - Takeyuki Suzuki
- Comprehensive Analysis Centre, SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka 8-1, Ibaraki567-0047, Osaka, Japan
| | - Mitsuhiro Arisawa
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita565-0871, Osaka, Japan
| | - Jun-ya Hasegawa
- Institute for Catalysis, Hokkaido University, N21 W10 Kita-ku, Sapporo001-0021, Hokkaido, Japan
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba305-8565, Ibaraki, Japan
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Wang H, Huang Y, Wu Q, Lu J, Xu YL, Chen YY. Visible-Light-Promoted bis(Difluoromethylation)/Cyclization of 2-Vinyloxy Arylalkynes to Prepare Benzofuran Derivatives. J Org Chem 2022; 87:13288-13299. [PMID: 36166821 DOI: 10.1021/acs.joc.2c01938] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A visible-light-promoted difluoromethylation/cyclization of 2-vinyloxy arylalkynes was developed, providing a variety of bis(difluoromethyl)-substituted benzofurans in moderate to good yields. A plausible mechanism involving difluoromethyl radical cascade cyclization and solvent-promoted ionic addition was proposed. This protocol has the advantages of having mild reaction conditions, simple operation, and good functional group tolerance.
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Affiliation(s)
- Huan Wang
- Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Yao Huang
- Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Qiaoyan Wu
- Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Jun Lu
- Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Yan-Li Xu
- Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Yan-Yan Chen
- Guangxi Engineering Research Center for Pharmaceutical Molecular Screening and Druggability Evaluation, College of Pharmacy, Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin 541004, People's Republic of China
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Tambe SD, Ka CH, Hwang HS, Bae J, Iqbal N, Cho EJ. Nickel‐Catalyzed Enantioselective Synthesis of 2,3,4‐Trisubstituted 3‐Pyrrolines. Angew Chem Int Ed Engl 2022; 61:e202203494. [DOI: 10.1002/anie.202203494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Shrikant D. Tambe
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Cheol Hyeon Ka
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Ho Seong Hwang
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Jaehan Bae
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Naeem Iqbal
- Department of Chemistry University of York Heslington, York YO10 5DD UK
| | - Eun Jin Cho
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
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Tambe SD, Ka CH, Hwang HS, Bae J, Iqbal N, Cho EJ. Nickel‐Catalyzed Enantioselective Synthesis of 2,3,4‐Trisubstituted 3‐Pyrrolines. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shrikant D. Tambe
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Cheol Hyeon Ka
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Ho Seong Hwang
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Jaehan Bae
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
| | - Naeem Iqbal
- Department of Chemistry University of York Heslington, York YO10 5DD UK
| | - Eun Jin Cho
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu, Seoul 06974 Republic of Korea
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Min KH, Iqbal N, Cho EJ. Ni-Catalyzed Reductive Coupling of Alkynes and Amides to Access Multi-Functionalized Indoles. Org Lett 2022; 24:989-994. [PMID: 35050641 DOI: 10.1021/acs.orglett.1c03971] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A nickel-catalyzed reductive coupling of alkynes and amides, followed by base-free transmetalation, proceeded selectively in the presence of an uncommon bidentate primary aminophosphine ligand to access highly functionalized indoles comprising biologically important trifluoromethyl groups and challenging electron-rich alkenyl groups at the 2- and 3-positions, respectively. Indole molecules were installed within natural products or drug molecules under mild conditions, and a trifluoromethylated analogue of a drug molecule (pravadoline) was also synthesized.
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Affiliation(s)
- Kwan Hong Min
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Naeem Iqbal
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Eun Jin Cho
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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Orlandi M, Escudero-Casao M, Licini G. Cu(I)–Bis(phosphine) Dioxides as Catalysts for the Enantioselective α-Arylation of Carbonyl Compounds. Synlett 2021. [DOI: 10.1055/a-1503-7339] [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
AbstractThe transition-metal-catalyzed α-arylation of carbonyl compounds was first reported by Buchwald and Hartwig in 1997. This transformation has been used and studied extensively over the last two decades. Enantioselective variants were also developed that allow for controlling the product stereochemistry. However, these suffer several limitations in the context of formation of tertiary stereocenters. Presented here is our group’s contribution to this research area. The chiral Cu-bis(phosphine) dioxides catalytic system that we reported allowed accessing the enantioselective α-arylation of ketones that were not suitable for this transformation before in good yields and er up to 97.5:2.5. Preliminary insight and speculation concerning the reaction mechanism involving the unusual pairing of bis(phosphine) dioxides with transition-metal catalysts is also given.1 Introduction2 State of the Art3 Enantioselective α-Arylation of Acyclic Ketones4 Summary and Conclusions
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