1
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Yamamoto T, Asakura M, Yamanomoto K, Shibata T, Endo K. Creation of a Chiral All-Carbon Quaternary Center Induced by CF 3 and CH 3 Substituents via Cu-Catalyzed Asymmetric Conjugate Addition. Org Lett 2024; 26:5312-5317. [PMID: 38869935 PMCID: PMC11217942 DOI: 10.1021/acs.orglett.4c01691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/05/2024] [Accepted: 06/10/2024] [Indexed: 06/14/2024]
Abstract
Cu-catalyzed asymmetric construction of a chiral quaternary center bearing CH3 and CF3 groups was achieved with high to excellent enantioselectivity using our originally developed ligands. The asymmetric conjugate addition of Me3Al to β-CF3-substituted enones and unsaturated ketoesters proceeded efficiently. The use of unsaturated ketoesters gives optically active furanones in high yields with high enantioselectivities. The perfluoroalkyl-substituted enone does not seem to be favorable in the present reaction.
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Affiliation(s)
- Taiyo Yamamoto
- Department
of Chemistry, Faculty of Science, Tokyo
University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Masayuki Asakura
- Department
of Chemistry, Faculty of Science, Tokyo
University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Ken Yamanomoto
- Department
of Chemistry, Faculty of Science, Tokyo
University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Takanori Shibata
- Department
of Chemistry and Biochemistry, Graduate School of Science and Technology, Waseda University, Shinjuku, Tokyo 169-8555, Japan
| | - Kohei Endo
- Department
of Chemistry, Faculty of Science, Tokyo
University of Science, Shinjuku, Tokyo 162-8601, Japan
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2
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Briand M, Anselmi E, Dagousset G, Magnier E. The Revival of Enantioselective Perfluoroalkylation - Update of New Synthetic Approaches from 2015-2022. CHEM REC 2023; 23:e202300114. [PMID: 37219007 DOI: 10.1002/tcr.202300114] [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: 03/30/2023] [Revised: 05/02/2023] [Indexed: 05/24/2023]
Abstract
Over the last years, methods devoted to the synthesis of asymmetric molecules bearing a perfluoroalkylated chain have been limited in number. Among them, only a few can be used on a large variety of scaffolds. This microreview aims at summarizing these recent advances in enantioselective perfluoroalkylation (-CF3 , -CF2 H, -Cn F2n+1 ) and highlights the need for new enantioselective methods to easily synthesize chiral fluorinated molecules which would be useful for the pharmaceutical and agrochemical industries. Some perspectives are also mentioned.
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Affiliation(s)
- Marina Briand
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 45 Avenue des Etats-Unis, 78035, Versailles Cedex, France
| | - Elsa Anselmi
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 45 Avenue des Etats-Unis, 78035, Versailles Cedex, France
- Université de Tours, Faculté des Sciences et Techniques, Parc Grandmont, Avenue Monge, 37200, Tours, France
| | - Guillaume Dagousset
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 45 Avenue des Etats-Unis, 78035, Versailles Cedex, France
| | - Emmanuel Magnier
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 45 Avenue des Etats-Unis, 78035, Versailles Cedex, France
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3
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Bauer T, Hakim YZ, Morawska P. Recent Advances in the Enantioselective Radical Reactions. Molecules 2023; 28:6252. [PMID: 37687085 PMCID: PMC10489153 DOI: 10.3390/molecules28176252] [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: 07/31/2023] [Revised: 08/20/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
The review covers research published since 2017 and is focused on enantioselective synthesis using radical reactions. It describes recent approaches to the asymmetric synthesis of chiral molecules based on the application of the metal catalysis, dual metal and organocatalysis and finally, pure organocatalysis including enzyme catalysis. This review focuses on the synthetic aspects of the methodology and tries to show which compounds can be obtained in enantiomerically enriched forms.
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Affiliation(s)
- Tomasz Bauer
- Faculty of Chemistry, University of Warsaw, L Pasteura 1, PL-02-093 Warsaw, Poland; (Y.Z.H.); (P.M.)
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4
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Chen K, Liu Q, Wan J, Zhu C, Feng C. Ni-Catalyzed Reductive Dibenzylation of Trifluoromethylalkenes for CF 3-Containing All-Carbon Quaternary Center Construction. Org Lett 2023; 25:5995-6000. [PMID: 37553069 DOI: 10.1021/acs.orglett.3c02102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
A Ni-catalyzed reductive dicarbofunctionalization of α-CF3 styrenes with benzyl bromides has been accomplished. This transformation obviates the commonly facile β-F elimination effectively and enables the creation of CF3-substituted all-carbon quaternary centers of pharmaceutical interests. Preliminary mechanistic studies suggest a pathway consisting of benzyl radical addition and subsequent nickel-mediated benzylation of the resulting α-CF3-embedded tertiary C radical.
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Affiliation(s)
- Kai Chen
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Qian Liu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jinyan Wan
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Chuan Zhu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
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5
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Li Y, Sun G, He X, Lv H, Gao B. Palladium-Catalyzed Intramolecular Annulation of Difluoroalkenes to Difluoro- and Trifluoromethylated Indane Analogs. J Fluor Chem 2023. [DOI: 10.1016/j.jfluchem.2023.110115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
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6
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Jiang SY, Shi J, Wang W, Sun YZ, Wu W, Song JR, Yang X, Hao GF, Pan WD, Ren H. Copper-Catalyzed Selective Electron Transfer Enables Switchable Divergent Synthesis of 3-Functionalized Oxindoles. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Shu-Yun Jiang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Jun Shi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Wei Wang
- National Key Laboratory of Green Pesticide, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Yan-Zheng Sun
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Wei Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Jun-Rong Song
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Xiaoyan Yang
- Department of Pediatrics, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P. R. China
| | - Ge-Fei Hao
- National Key Laboratory of Green Pesticide, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Wei-Dong Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
| | - Hai Ren
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Science, Guiyang, Guizhou 550014, P. R. China
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7
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Giri R, Mosiagin I, Franzoni I, Nötel NY, Patra S, Katayev D. Photoredox Activation of Anhydrides for the Solvent-Controlled Switchable Synthesis of gem-Difluoro Compounds. Angew Chem Int Ed Engl 2022; 61:e202209143. [PMID: 35997088 PMCID: PMC9826529 DOI: 10.1002/anie.202209143] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/11/2023]
Abstract
The incorporation of the gem-difluoromethylene (CF2 ) group into organic frameworks is highly sought due to the influence of this unit on the physicochemical and pharmacological properties of molecules. Herein we report an operationally simple, mild, and switchable protocol to access various gem-difluoro compounds that employs chlorodifloroacetic anhydride (CDFAA) as a low-cost and versatile fluoroalkylating reagent. Detailed mechanistic studies revealed that electron-transfer photocatalysis triggers mesolytic cleavage of a C-Cl bond generating a gem-difluoroalkyl radical. In the presence of alkene, this radical species acts as a unique intermediate that, under solvent-controlled reaction conditions, delivers a wide range of gem-difluorinated γ-lactams, γ-lactones, and promotes oxy-perfluoroalkylation. These protocols are flow- and batch-scalable, possess excellent chemo- and regioselectivity, and can be used for the late-stage diversification of complex molecules.
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Affiliation(s)
- Rahul Giri
- Department of ChemistryUniversity of FribourgChemin du Musée 91700FribourgSwitzerland
| | - Ivan Mosiagin
- Department of ChemistryUniversity of FribourgChemin du Musée 91700FribourgSwitzerland
| | - Ivan Franzoni
- NuChem Sciences Inc.2350 Rue Cohen, Suite 201Saint-LaurentQuebecH4R 2N6Canada,Present address: Valence Discovery Inc.6666 Rue St-Urbain, Suite 200MontrealQuebecH2S 3H1Canada
| | - Nicolas Yannick Nötel
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology, ETH ZürichVladimir-Prelog-Weg8093ZürichSwitzerland
| | - Subrata Patra
- Department of ChemistryUniversity of FribourgChemin du Musée 91700FribourgSwitzerland
| | - Dmitry Katayev
- Department of ChemistryUniversity of FribourgChemin du Musée 91700FribourgSwitzerland
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8
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Vayer M, Mayer RJ, Moran J, Lebœuf D. Leveraging the Hydroarylation of α-(Trifluoromethyl)styrenes to Access Trifluoromethylated All-Carbon Quaternary Centers. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marie Vayer
- Université de Strasbourg, CNRS, ISIS UMR
7006, 67000 Strasbourg, France
| | - Robert J. Mayer
- Université de Strasbourg, CNRS, ISIS UMR
7006, 67000 Strasbourg, France
| | - Joseph Moran
- Université de Strasbourg, CNRS, ISIS UMR
7006, 67000 Strasbourg, France
- Institut Universitaire de France (IUF), 75005 Paris, France
| | - David Lebœuf
- Université de Strasbourg, CNRS, ISIS UMR
7006, 67000 Strasbourg, France
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9
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Giri R, Mosiagin I, Franzoni I, Nötel NY, Patra S, Katayev D. Photoredox Activation of Anhydrides for the Solvent‐Controlled Switchable Synthesis of gem‐Difluoro Compounds. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209143] [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)
- Rahul Giri
- University of Fribourg: Universite de Fribourg Chemistry Department Chemin du Musée 9 1700 Fribourg SWITZERLAND
| | - Ivan Mosiagin
- University of Fribourg: Universite de Fribourg Chemistry Department Chemin du Musée9 1700 Fribourg SWITZERLAND
| | - Ivan Franzoni
- Valence Discovery Inc. Research Department 6666 Rue St-Urbain, Suite 200Montreal H2S 3H1 Quebec CANADA
| | - Nicolas Yannick Nötel
- Swiss Federal Institute of Technology Zurich: Eidgenossische Technische Hochschule Zurich Department of Chemistry and Applied Biosciences Vladimir-Prelog-Weg 1-5/10 8093 Zürich SWITZERLAND
| | - Subrata Patra
- University of Fribourg: Universite de Fribourg Chemistry Department Chemin du Musée9 1700 Fribourg SWITZERLAND
| | - Dmitry Katayev
- University of Fribourg: Universite de Fribourg Department of Chemistry Chemin du Musée 9 1700 Fribourg SWITZERLAND
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10
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Granados A, Dhungana RK, Sharique M, Majhi J, Molander GA. From Styrenes to Fluorinated Benzyl Bromides: A Photoinduced Difunctionalization via Atom Transfer Radical Addition. Org Lett 2022; 24:4750-4755. [PMID: 35766376 PMCID: PMC10412001 DOI: 10.1021/acs.orglett.2c01699] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
An operationally simple and practical method is disclosed to achieve the difunctionalization of styrenes, generating fluorinated benzyl bromides via a photoinduced atom transfer radical addition process. The developed method is mild, atom-economical, cost-effective, employs very low photocatalyst loading (1000 ppm), and is highly compatible with a broad range of functional groups on styrene. The versatility of the fluorinated benzyl bromides is demonstrated through their derivatization to a variety of valuable compounds.
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Affiliation(s)
| | | | | | - Jadab Majhi
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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11
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Golla S, Jalagam S, Poshala S, Kokatla HP. Transition metal-free functionalization of 2-oxindoles via sequential aldol and reductive aldol reactions using rongalite as a C1 reagent. Org Biomol Chem 2022; 20:4926-4932. [PMID: 35506377 DOI: 10.1039/d2ob00665k] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A sequential one-pot classical aldol, transition-metal and hydride-free reductive aldol reaction is reported here for C(sp3)- H functionalization of 2-oxindoles using the multifaceted reagent rongalite. Here, rongalite functions as a hydride-free reducing agent and double C1 unit donor. This protocol enables the synthesis of a wide range of 3-methylindoline-2-ones and 3-(hydroxymethyl)-3-methylindolin-2-ones from 2-oxindoles (65-95% yields), which are the synthetic precursors for many natural products. Some of the important aspects of this synthetic approach include one-pot methylation and hydroxymethylation, low-cost rongalite (ca. $0.03 per 1 g), mild reaction conditions and applicability to gram-scale synthesis.
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Affiliation(s)
- Sivaparwathi Golla
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana-506004, India.
| | - Swathi Jalagam
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana-506004, India.
| | - Soumya Poshala
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana-506004, India.
| | - Hari Prasad Kokatla
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana-506004, India.
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12
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13
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Wu BB, Xu J, Bian KJ, Gao Q, Wang XS. Enantioselective Synthesis of Secondary β-Trifluoromethyl Alcohols via Catalytic Asymmetric Reductive Trifluoroalkylation and Diastereoselective Reduction. J Am Chem Soc 2022; 144:6543-6550. [PMID: 35378033 DOI: 10.1021/jacs.2c01422] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Fluorinated motifs are frequently encountered in drugs and agrochemicals. Incorporating fluorine-containing motifs in drug candidates for lead optimization in pharmaceutical research and development has emerged as a powerful tool. The construction of molecules that feature a trifluoromethyl (CF3-) group on a stereogenic carbon has accumulated broad research efforts. Unlike its well-explored, biologically active methyl counterpart, asymmetric construction of β-trifluoromethylated alcohols bearing adjacent stereocenters still remains elusive. Through retrosynthetic analysis, we posited that followed by sequential reduction of carbonyl, the initial construction of chiral α-trifluoromethylated ketones could render the desired product in a facile, one-pot fashion. Herein, we developed the first example of nickel-catalyzed asymmtric reductive cross-coupling trifluoroalkylation of acyl chlorides for enantioselective synthesis of diverse α-trifluoromethylated ketones. The one-pot reduction of these α-trifluoromethylated ketones furnished corresponding alcohols bearing β-CF3-substituted stereogenic carbons with excellent diastereoselectivity and complete enantioselective retention. High yields/enantioselectivity, mild conditions, and good functional group compatibility are shown in the system. Utilities of the method are also illustrated by applying asymmetric, late-stage trifluoroalkylation of biologically active complex molecules, revealing tremendous potential for development of CF3-containing chiral drugs.
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Affiliation(s)
- Bing-Bing Wu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jie Xu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Kang-Jie Bian
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qian Gao
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xi-Sheng Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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14
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Shee M, Singh NDP. Chemical versatility of azide radical: journey from a transient species to synthetic accessibility in organic transformations. Chem Soc Rev 2022; 51:2255-2312. [PMID: 35229836 DOI: 10.1039/d1cs00494h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The generation of azide radical (N3˙) occurs from its precursors primarily via a single electron transfer (SET) process or homolytic cleavage by chemical methods or advanced photoredox/electrochemical methods. This in situ generated transient open-shell species has unique characteristic features that set its reactivity. In the past, the azide radical was widely used for various studies in radiation chemistry as a 1e- oxidant of biologically important molecules, but now it is being exploited for synthetic applications based on its addition and intermolecular hydrogen atom transfer (HAT) abilities. Due to the significant role of nitrogen-containing molecules in synthesis, drug discovery, biological, and material sciences, the direct addition onto unsaturated bonds for the simultaneous construction of C-N bond with other (C-X) bonds are indeed worth highlighting. Moreover, the ability to generate O- or C-centered radicals by N3˙ via electron transfer (ET) and intermolecular HAT processes is also well documented. The purpose of controlling the reactivity of this short-lived intermediate in organic transformations drives us to survey: (i) the history of azide radical and its structural properties (thermodynamic, spectroscopic, etc.), (ii) chemical reactivities and kinetics, (iii) methods to produce N3˙ from various precursors, (iv) several significant azide radical-mediated transformations in the field of functionalization with unsaturated bonds, C-H functionalization via HAT, tandem, and multicomponent reaction with a critical analysis of underlying mechanistic approaches and outcomes, (v) concept of taming the reactivity of azide radicals for potential opportunities, in this review.
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Affiliation(s)
- Maniklal Shee
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
| | - N D Pradeep Singh
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
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15
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Li S, Sun S, Wang J. Catalytic Asymmetric Homologation of 4‐Substituted Cyclohexanones with CF
3
CHN
2
: Enantioselective Synthesis of α
‐
Trifluoromethyl Cycloheptanones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shu‐Sen Li
- Beijing National Laboratory of Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
| | - Shuo Sun
- Beijing National Laboratory of Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
- The State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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16
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Pastor M, Vayer M, Weinstabl H, Maulide N. Electrochemical Umpolung C-H Functionalization of Oxindoles. J Org Chem 2021; 87:606-612. [PMID: 34962127 PMCID: PMC8749966 DOI: 10.1021/acs.joc.1c02616] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
![]()
Herein, we present
a general electrochemical method to access unsymmetrical
3,3-disubstituted oxindoles by direct C–H functionalization
where the oxindole fragment behaves as an electrophile. This Umpolung
approach does not rely on stoichiometric oxidants and proceeds under
mild, environmentally benign conditions. Importantly, it enables the
functionalization of these scaffolds through C–O, and by extension
to C–C or even C–N bond formation.
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Affiliation(s)
- Miryam Pastor
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Marie Vayer
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Harald Weinstabl
- Boehringer-Ingelheim RCV, Doktor-Boehringer-Gasse 5-11, 1120 Vienna, Austria
| | - Nuno Maulide
- Christian Doppler Laboratory for Entropy-Oriented Drug Design, Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
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17
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Li SS, Sun S, Wang J. Catalytic Asymmetric Homologation of 4-Substituted Cyclohexanones with CF 3 CHN 2 : Enantioselective Synthesis of α-Trifluoromethyl Cycloheptanones. Angew Chem Int Ed Engl 2021; 61:e202115098. [PMID: 34939732 DOI: 10.1002/anie.202115098] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Indexed: 01/09/2023]
Abstract
Introduction of the trifluoromethyl group (CF3 ) into organic molecules in an enantioselective manner has attracted significant attention, but still remains a challenging problem. We herein report a catalytic asymmetric trifluoromethylation of cyclic ketones via a ScIII /chiral bisoxazoline-catalyzed homologation reaction by employing 2,2,2-trifluorodiazoethane (CF3 CHN2 ) as the CF3 source. This desymmetrization process is highly efficient and generates two chiral centers with excellent diastereoselectivity and enantioselectivity, affording chiral α-trifluoromethyl cyclic ketones in a straightforward manner.
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Affiliation(s)
- Shu-Sen Li
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
| | - Shuo Sun
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China.,The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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18
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Lv M, Li X. Ni(II)-Catalyzed Asymmetric Nitration of Oxindoles: Construction of Cipargamin Analogues. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04460] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mingjun Lv
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xiaoxun Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
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19
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Yamazaki T, Taketsugi M, Kawasaki-Takasuka T, Agou T, Kubota T. Construction of CF 3-Containing Quaternary Chiral Centers via Michael Addition Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takashi Yamazaki
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Masahito Taketsugi
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Tomoko Kawasaki-Takasuka
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Tomohiro Agou
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan
| | - Toshio Kubota
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan
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20
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Britton R, Gouverneur V, Lin JH, Meanwell M, Ni C, Pupo G, Xiao JC, Hu J. Contemporary synthetic strategies in organofluorine chemistry. ACTA ACUST UNITED AC 2021. [DOI: 10.1038/s43586-021-00042-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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21
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Chun J, Zhang H, Meng F, Guo K, Cao S, Fang Q, Li J, Zhu Y. Visible‐Light Photoredox‐Catalyzed Tandem Trifluoro‐methylation/Cyclization/Remote Oxidation of 1,6‐Dienes: Access to CF
3
‐Containing Five‐Membered Heterocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001272] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jianlin Chun
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Honglin Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Fei Meng
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Kang Guo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Shujun Cao
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Qin Fang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Jie Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Yingguang Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
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22
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Calvo R, Le Tellier A, Nauser T, Rombach D, Nater D, Katayev D. Synthesis, Characterization, and Reactivity of a Hypervalent-Iodine-Based Nitrooxylating Reagent. Angew Chem Int Ed Engl 2020; 59:17162-17168. [PMID: 32530081 DOI: 10.1002/anie.202005720] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Indexed: 11/11/2022]
Abstract
Herein, the synthesis and characterization of a hypervalent-iodine-based reagent that enables a direct and selective nitrooxylation of enolizable C-H bonds to access a broad array of organic nitrate esters is reported. This compound is bench stable, easy-to-handle, and delivers the nitrooxy (-ONO2 ) group under mild reaction conditions. Activation of the reagent by Brønsted and Lewis acids was demonstrated in the synthesis of nitrooxylated β-keto esters, 1,3-diketones, and malonates, while its activity under photoredox catalysis was shown in the synthesis of nitrooxylated oxindoles. Detailed mechanistic studies including pulse radiolysis, Stern-Volmer quenching studies, and UV/Vis spectroelectrochemistry reveal a unique single-electron-transfer (SET)-induced concerted mechanistic pathway not reliant upon generation of the nitrate radical.
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Affiliation(s)
- Roxan Calvo
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Antoine Le Tellier
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211, Geneva 4, Switzerland
| | - Thomas Nauser
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - David Rombach
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Darryl Nater
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Dmitry Katayev
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
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23
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Calvo R, Le Tellier A, Nauser T, Rombach D, Nater D, Katayev D. Synthese, Charakterisierung und Reaktivität eines Nitrooxylierungsreagenzes basierend auf einer hypervalenten Iodverbindung. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Roxan Calvo
- Department of Chemistry and Applied Biosciences Swiss Federal Institute of Technology ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Antoine Le Tellier
- Department of Organic Chemistry University of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Schweiz
| | - Thomas Nauser
- Department of Chemistry and Applied Biosciences Swiss Federal Institute of Technology ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - David Rombach
- Department of Chemistry and Applied Biosciences Swiss Federal Institute of Technology ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Darryl Nater
- Department of Chemistry and Applied Biosciences Swiss Federal Institute of Technology ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Dmitry Katayev
- Department of Chemistry and Applied Biosciences Swiss Federal Institute of Technology ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
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24
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Yuan WC, Zhou XJ, Zhao JQ, Chen YZ, You Y, Wang ZH. Catalytic Enantioselective Dearomatization/Rearomatization of 2-Nitroindoles to Access 3-Indolyl-3′-Aryl-/Alkyloxindoles: Application in the Formal Synthesis of Cyclotryptamine Alkaloids. Org Lett 2020; 22:7088-7093. [DOI: 10.1021/acs.orglett.0c02350] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Xiao-Jian Zhou
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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25
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Granados A, Ballesteros A, Vallribera A. Enantioenriched Quaternary α-Pentafluoroethyl Derivatives of Alkyl 1-Indanone-2-Carboxylates. J Org Chem 2020; 85:10378-10387. [PMID: 32709202 DOI: 10.1021/acs.joc.0c00210] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An electrophilic enantioselective catalytic method for the α-pentafluoroethylation of 3-oxoesters is described. Under the use of La(OTf)3 in combination with a (S,R)-indanyl-pybox ligand, good results in terms of yield and enantioselectivities were achieved (up to 89% ee). The reaction proceeds under mild conditions, leading to the formation of enantioenriched quaternary centers. This methodology uses an hypervalent iodine(III)-CF2CF3 reagent, and mechanistic investigations are consistent with the involvement of a radical pathway.
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Affiliation(s)
- Albert Granados
- Department of Chemistry and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Anna Ballesteros
- Department of Chemistry and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Adelina Vallribera
- Department of Chemistry and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
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26
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Mao Y, Wang Z, Wang G, Zhao R, Kan L, Pan X, Liu L. Redox Deracemization of Tertiary Stereocenters Adjacent to an Electron-Withdrawing Group. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02486] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ying Mao
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Zehua Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Gang Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Ran Zhao
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Linglong Kan
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xiaoguang Pan
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Lei Liu
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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27
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Li J, Zhang D, Chen J, Ma C, Hu W. Enantioselective Synthesis of Fluoroalkyl-Substituted syn-Diamines by the Asymmetric gem-Difunctionalization of 2,2,2-Trifluorodiazoethane. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00972] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiuling Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- School Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Dan Zhang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jianghui Chen
- School Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Chaoqun Ma
- School Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- School Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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28
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Yang H, Wang Q, Luo Y, Ye L, Li X, Chen F, Zhao Z, Li X. Enantioselective synthesis of trifluoromethyl substituted cyclohexanones via an organocatalytic cascade Michael/aldol reaction. Org Biomol Chem 2020; 18:1607-1611. [PMID: 32030393 DOI: 10.1039/d0ob00004c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An enantioselective (92-99% ee) Michael/aldol cascade reaction between 4,4,4-trifluoroacetoacetates and α,β-unsaturated enones was established in the presence of cinchona alkaloid-based primary amines. Various β-CF3-cyclohexanones were constructed in high yields (81-99%) as a couple of separable diastereomers. This tandem reaction was sensitive to acidic co-catalysts, with a Michael/aldol condensation process favorably occurring to generate β-CF3-cyclohexenones (42-69% yield, 84-96% ee) in the presence of trifluoroacetic acid.
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Affiliation(s)
- Hongzhou Yang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Qingqing Wang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Yuan Luo
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xinying Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Feng Chen
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Zhigang Zhao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Xuefeng Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
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29
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Chen C, Wu WB, Li YH, Zhao QH, Yu JS, Zhou J. Activation of Chiral (Salen)TiCl2 Complex by Phosphorane for the Highly Enantioselective Cyanation of Nitroolefins. Org Lett 2020; 22:2099-2104. [DOI: 10.1021/acs.orglett.0c00612] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | | | | | - Jian Zhou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, China
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30
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Bunsen‐Vorlesung: R. Winter / Werner‐Preis: K. Tiefenbacher / Ružička‐Preis: D. Katayev. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916110] [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]
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31
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Bunsen Lecture: R. Winter / Werner Prize: Konrad Tiefenbacher / Ružička Prize: D. Katayev. Angew Chem Int Ed Engl 2020; 59:2149. [DOI: 10.1002/anie.201916110] [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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32
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Zhang X, Wu W, Cao W, Yu H, Xu X, Liu X, Feng X. Enantioselective Radical-Polar Crossover Reactions of Indanonecarboxamides with Alkenes. Angew Chem Int Ed Engl 2020; 59:4846-4850. [PMID: 31930609 DOI: 10.1002/anie.201914151] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/16/2019] [Indexed: 11/12/2022]
Abstract
Highly efficient asymmetric intermolecular radical-polar crossover reactions were realized by combining a chiral N,N'-dioxide/NiII complex catalyst with Ag2 O under mild reaction conditions. Various terminal alkenes and indanonecarboxamides/esters underwent radical addition/cyclization reactions to afford spiro-iminolactones and spirolactones with good to excellent yields (up to 99 %) and enantioselectivities (up to 97 % ee). Furthermore, a range of different radical-mediated oxidation/elimination or epoxide ring-opening products were obtained under mild reaction conditions. The Lewis acid catalysts exhibited excellent performance and precluded the strong background reaction.
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Affiliation(s)
- Xiying Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Wangbin Wu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Han Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xi Xu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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33
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Zhang X, Wu W, Cao W, Yu H, Xu X, Liu X, Feng X. Enantioselective Radical‐Polar Crossover Reactions of Indanonecarboxamides with Alkenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914151] [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)
- Xiying Zhang
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Wangbin Wu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Han Yu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xi Xu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
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34
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Pan X, Wang Z, Kan L, Mao Y, Zhu Y, Liu L. Cross-dehydrogenative coupling enables enantioselective access to CF 3-substituted all-carbon quaternary stereocenters. Chem Sci 2020; 11:2414-2419. [PMID: 34084405 PMCID: PMC8157275 DOI: 10.1039/c9sc05894j] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 01/09/2020] [Indexed: 12/20/2022] Open
Abstract
A cross-dehydrogenative coupling strategy for enantioselective access to acyclic CF3-substituted all-carbon quaternary stereocenters has been established. By using catalytic DDQ with MnO2 as an inexpensive terminal oxidant, asymmetric cross coupling of racemic δ-CF3-substituted phenols with indoles proceeded smoothly, providing CF3-bearing all-carbon quaternary stereocenters with excellent chemo- and enantioselectivities. The generality of the strategy is further demonstrated by efficient construction of all-carbon quaternary stereocenters bearing other polyfluoroalkyl and perfluoroalkyl groups such as CF2Cl, C2F5, and C3F7.
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Affiliation(s)
- Xiaoguang Pan
- School of Pharmaceutical Sciences, Shandong University Jinan 250012 China
| | - Zehua Wang
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 China
| | - Linglong Kan
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 China
| | - Ying Mao
- School of Pharmaceutical Sciences, Shandong University Jinan 250012 China
| | - Yasheng Zhu
- School of Pharmaceutical Sciences, Shandong University Jinan 250012 China
| | - Lei Liu
- School of Pharmaceutical Sciences, Shandong University Jinan 250012 China
- School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 China
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35
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Terashima K, Kawasaki-Takasuka T, Agou T, Kubota T, Yamazaki T. Construction of trifluoromethylated quaternary stereocenters via p-quinone methides. Chem Commun (Camb) 2020; 56:3031-3034. [DOI: 10.1039/c9cc08936e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Development of a new synthetic method for the construction of quaternary centers with a CF3 group was realized by way of 1,6-addition of various nucleophiles to highly reactive δ-trifluoromethylated p-quinone methides generated in situ.
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Affiliation(s)
- Kyu Terashima
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei 184-8588
- Japan
| | - Tomoko Kawasaki-Takasuka
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei 184-8588
- Japan
| | - Tomohiro Agou
- Department of Biomolecular Functional Engineering
- Ibaraki University
- Hitachi 316-8511
- Japan
| | - Toshio Kubota
- Department of Biomolecular Functional Engineering
- Ibaraki University
- Hitachi 316-8511
- Japan
| | - Takashi Yamazaki
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei 184-8588
- Japan
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36
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Terashima K, Kawasaki-Takasuka T, Agou T, Kubota T, Yamazaki T. Syntheses of α-CF3-α-quaternary ketones via p-quinone methides and their derivatization to compounds with successively congested stereogenic centers. Org Biomol Chem 2020; 18:4638-4644. [DOI: 10.1039/d0ob00951b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NHC-catalyzed 1,6-conjugate additions of a variety of aldehydes to δ-CF3-δ-substituted p-quinone methides and their highly diastereoselective derivatization to compounds with successively congested stereogenic centers were performed.
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Affiliation(s)
- Kyu Terashima
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei 184-8588
- Japan
| | - Tomoko Kawasaki-Takasuka
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei 184-8588
- Japan
| | - Tomohiro Agou
- Department of Biomolecular Functional Engineering
- Ibaraki University
- Hitachi 316-8511
- Japan
| | - Toshio Kubota
- Department of Biomolecular Functional Engineering
- Ibaraki University
- Hitachi 316-8511
- Japan
| | - Takashi Yamazaki
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei 184-8588
- Japan
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37
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Bai X, Wu C, Ge S, Lu Y. Pd/Cu-Catalyzed Enantioselective Sequential Heck/Sonogashira Coupling: Asymmetric Synthesis of Oxindoles Containing Trifluoromethylated Quaternary Stereogenic Centers. Angew Chem Int Ed Engl 2019; 59:2764-2768. [PMID: 31664752 DOI: 10.1002/anie.201913148] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Indexed: 12/26/2022]
Abstract
An asymmetric palladium and copper co-catalyzed Heck/Sonogashira reaction between o-iodoacrylanilides and terminal alkynes to synthesize chiral oxindoles was developed. In particular, a wide range of CF3 -substituted o-iodoacrylanilides reacted with terminal alkynes, affording the corresponding chiral oxindoles containing trifluoromethylated quaternary stereogenic centers in high yields with excellent enantioselectivities (94-98 % ee). This asymmetric Heck/Sonogashira reaction provides a general approach to access oxindole derivatives containing quaternary stereogenic centers including CF3 -substituted ones.
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Affiliation(s)
- Xingfeng Bai
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Caizhi Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Shaozhong Ge
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Yixin Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
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38
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Bai X, Wu C, Ge S, Lu Y. Pd/Cu‐Catalyzed Enantioselective Sequential Heck/Sonogashira Coupling: Asymmetric Synthesis of Oxindoles Containing Trifluoromethylated Quaternary Stereogenic Centers. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913148] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xingfeng Bai
- Department of ChemistryNational University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Caizhi Wu
- Department of ChemistryNational University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaozhong Ge
- Department of ChemistryNational University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yixin Lu
- Department of ChemistryNational University of Singapore 3 Science Drive 3 117543 Singapore Singapore
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39
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Niu L, Pi R, Dong S, Liu S. Aromatic C–H Bond Functionalized via Zwitterion Intermediates to Construct Bioxindole Containing Continuous Quaternary Carbons. J Org Chem 2019; 84:15192-15200. [DOI: 10.1021/acs.joc.9b02228] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Li Niu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Rou Pi
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Suzhen Dong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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Granados A, Rivilla I, Cossío FP, Vallribera A. Lanthanum‐Catalyzed Enantioselective Trifluoromethylation by Using an Electrophilic Hypervalent Iodine Reagent. Chemistry 2019; 25:8214-8218. [DOI: 10.1002/chem.201900598] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Albert Granados
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universitat Autònoma de Barcelona 08193 Bellaterra (Cerdanyola del Vallès) Spain
| | - Iván Rivilla
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universidad del País Vasco and Donostia International Physics Center (DIPC) P° Manuel Lardizabal, 3. 20018 Donostia–San Sebastián Spain
| | - Fernando P. Cossío
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universidad del País Vasco and Donostia International Physics Center (DIPC) P° Manuel Lardizabal, 3. 20018 Donostia–San Sebastián Spain
| | - Adelina Vallribera
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universitat Autònoma de Barcelona 08193 Bellaterra (Cerdanyola del Vallès) Spain
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41
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Cloutier M, Roudias M, Paquin JF. Regioselective Gold-Catalyzed Hydration of CF3- and SF5-alkynes. Org Lett 2019; 21:3866-3870. [DOI: 10.1021/acs.orglett.9b01379] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mélissa Cloutier
- CGCC, PROTEO, Département de chimie, Université Laval, 1045 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Majdouline Roudias
- CGCC, PROTEO, Département de chimie, Université Laval, 1045 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Jean-François Paquin
- CGCC, PROTEO, Département de chimie, Université Laval, 1045 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
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