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Wendlandt HC, Trammel GL, Kohler DG, Utley JA, Nicely AM, Popov AG, Hull KL. Copper-Catalyzed Three-Component Carboiminolactonization of Electron-Deficient Olefins. J Org Chem 2024; 89:2024-2031. [PMID: 38198512 PMCID: PMC10872306 DOI: 10.1021/acs.joc.3c02326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Herein we report the three-component copper-catalyzed carboiminolactonization of α,β-unsaturated carbonyl derivatives. In the presence of a Cu(I) catalyst, α-haloesters, electron-deficient alkenes, and primary amines couple to generate γ-iminolactones in a single step. The scope of the reaction is explored with respect to the three coupling partners. Nineteen examples are presented with yields of these hydrolytically labile heterocycles of up to 69%. Mechanistic investigations support the formation of an oxocarbenium by way of an atom transfer radical addition (ATRA) intermediate.
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Affiliation(s)
- Hannah C. Wendlandt
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
| | - Grace L. Trammel
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Daniel G. Kohler
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Jacob A. Utley
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
| | - Aja M. Nicely
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
| | - Andrei G. Popov
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
| | - Kami L. Hull
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
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Nicely AM, Popov AG, Wendlandt HC, Trammel GL, Kohler DG, Hull KL. Cu-Catalyzed Three-Component Carboamination of Electron Deficient Olefins. Org Lett 2023; 25:5302-5307. [PMID: 37440170 PMCID: PMC10771120 DOI: 10.1021/acs.orglett.3c01866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
The copper-catalyzed three-component carboamination of atropates for the synthesis of α-aryl amino acid derivatives is presented. The scope of the reaction is explored with respect to all three coupling partners: the alkyl halide, the atropate, and the aryl amine. A total of 41 examples are included, with yields of ≤92%. Both primary and secondary aryl amines participate in the carboamination along with α-haloesters, nitriles, and perfluoroiodoalkanes. Mechanistic investigations support a radical mechanism involving Cu-mediated C-N bond formation with the radical adduct.
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Affiliation(s)
- Aja M Nicely
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Andrei G Popov
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Hannah C Wendlandt
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Grace L Trammel
- Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, Illinois 61812, United States
| | - Daniel G Kohler
- Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, Illinois 61812, United States
| | - Kami L Hull
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, Illinois 61812, United States
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Lin Z, Zhai DH, Sun YM, Zheng HX, Li Q, Wang YL, Wen JH, Zhao CQ. Tandem addition of nucleophilic and electrophilic reagents to vinyl phosphinates: the stereoselective formation of organophosphorus compounds with congested tertiary carbons. RSC Adv 2023; 13:14060-14064. [PMID: 37179997 PMCID: PMC10167796 DOI: 10.1039/d3ra02409a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023] Open
Abstract
Carbon anions formed via the addition of Grignard reagents to SP-vinyl phosphinates were modified with electrophilic reagents to afford organophosphorus compounds with diverse carbon skeletons. The electrophiles included acids, aldehydes, epoxy groups, chalcogens and alkyl halides. When alkyl halides were used, bis-alkylated products were afforded. Substitution reactions or polymerization occurred when the reaction was applied to vinyl phosphine oxides.
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Affiliation(s)
- Zhu Lin
- College of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Road Liaocheng Shandong 252059 China
| | - De-Hua Zhai
- College of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Road Liaocheng Shandong 252059 China
| | - Yong-Ming Sun
- College of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Road Liaocheng Shandong 252059 China
| | - Hong-Xing Zheng
- College of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Road Liaocheng Shandong 252059 China
| | - Qiang Li
- College of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Road Liaocheng Shandong 252059 China
| | - Yan-Lan Wang
- College of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Road Liaocheng Shandong 252059 China
| | - Jing-Hong Wen
- College of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Road Liaocheng Shandong 252059 China
| | - Chang-Qiu Zhao
- College of Chemistry and Chemical Engineering, Liaocheng University No. 1, Hunan Road Liaocheng Shandong 252059 China
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Yamaguchi E. [Development of Molecular Transformation Reactions Using Visible Light and Main Group Elements]. YAKUGAKU ZASSHI 2023; 143:693-699. [PMID: 37661434 DOI: 10.1248/yakushi.23-00091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Owing to their ability to induce excitation of specific molecular orbitals or initiate chemical reactions, photochemical reactions have the potential to be more effective at selectively activating target molecules than thermal reactions. The thermal reactions transfer thermal energy to activate molecules, which often leads to the activation of multiple molecular species, including undesired ones, resulting in non-selectivity. This nonselectivity may result in undesirable side reactions or decrease reaction efficiency. Additionally, photochemical reactions can induce selective activation by absorbing specific wavelengths of light. However, visible light-driven photocatalytic reactions typically require expensive transition metal catalysts or organic dyes, leaving plenty of room for improvement. To address the aforementioned issues, the photochemical properties of the main group elements, such as halogens, were optimized and methodologies for visible light-induced reactions were developed. Activation of molecular halogen, halogen-carbon bonds, and halogen bonding interactions were independently investigated and various methodologies were reported. These developed reactions are excellent methodologies that use inexpensive raw materials and are thus predicted to contribute significantly toward sustainability.
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Affiliation(s)
- Eiji Yamaguchi
- Department of Pharmacy, Gifu Pharmaceutical University
- Center for One Medicine Innovative Translational Research, Gifu University
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Wei H, Zhang Z, Zhang X, Gao S, Wang T, Zhao M, Wei P, Wang M. Copper-catalyzed intramolecular iminolactonization cyclization reactions of remote C(sp 3)–H bonds in carboxamides. Org Biomol Chem 2022; 20:8912-8916. [DOI: 10.1039/d2ob01711c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A novel and efficient synthetic method for iminolactones by copper-catalyzed intramolecular C(sp3)–H bond functionalization of carboxamides via a cascade process is reported for the first time.
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Affiliation(s)
- He Wei
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Zhenhua Zhang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Xiang Zhang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Shuo Gao
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Tongtong Wang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Mengmeng Zhao
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Pifeng Wei
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Min Wang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
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Takeda M, Maejima S, Yamaguchi E, Itoh A. Iodine-mediated direct α-amination of dimethyl methylmalonate using non-protected amines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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