1
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Ramar T, Ilangovan A, A M Subbaiah M. Promoting Catalytic C-Selective Sulfonylation of Cyclopropanols against Conventional O-Sulfonylation Using Readily Available Sulfonyl Chlorides. J Org Chem 2023; 88:13553-13567. [PMID: 37708032 DOI: 10.1021/acs.joc.3c01230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Against the backdrop of the well-known O-sulfonylation of cyclopropyl alcohols with sulfonyl chlorides, we examined the feasibility of conducting regioselective C-sulfonylation. By emulating an umpolung strategy-guided design, we report for the first time the Cu(II)-catalyzed β-sulfonylation of cyclopropanols by a mechanism that potentially involves an oxidative addition of a sulfonyl radical to a metal homoenolate. Unlike reported methods, this protocol allows a practical synthetic route to γ-keto sulfone building blocks from cyclopropanols by leveraging commercially available aryl- and alkyl-sulfonyl chlorides, common reagents in organic chemistry laboratories. Using operationally simple open-flask conditions, the preparative scope of starting materials was demonstrated using an array of aryl- and alkyl-substituted sulfonyl chlorides and cyclopropanols (43 examples, up to 96% yield).
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Affiliation(s)
- Thangeswaran Ramar
- Department of Medicinal Chemistry, Biocon Bristol Myers Squibb R&D Centre, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore, Karnataka PIN 560099, India
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli, Tamil Nadu PIN 620024, India
| | - Andivelu Ilangovan
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli, Tamil Nadu PIN 620024, India
| | - Murugaiah A M Subbaiah
- Department of Medicinal Chemistry, Biocon Bristol Myers Squibb R&D Centre, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore, Karnataka PIN 560099, India
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2
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Jang Y, Deng W, Sprague IS, Lindsay VNG. Divergent Synthesis of β-Fluoroamides via Silver-Catalyzed Oxidative Deconstruction of Cyclopropanone Hemiaminals. Org Lett 2023; 25:5389-5394. [PMID: 37413978 PMCID: PMC10829026 DOI: 10.1021/acs.orglett.3c01992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
An expedient approach for the synthesis of challenging β-fluoroamides from readily accessible cyclopropanone equivalents is reported. Following the addition of pyrazole used here as a transient leaving group, silver-catalyzed regiospecific ring-opening fluorination of the resulting hemiaminal leads to a β-fluorinated N-acylpyrazole intermediate reactive to substitution with amines, ultimately affording β-fluoroamides. The process could also be extended to the synthesis of β-fluoroesters and γ-fluoroalcohols via the addition of alcohols or hydrides as terminal nucleophiles, respectively.
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Affiliation(s)
- Yujin Jang
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
| | - Weixia Deng
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
| | - Ivan S. Sprague
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
| | - Vincent N. G. Lindsay
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
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3
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Li A, Wang X, Liu Y, Hao D, Zhao X, Lu K. Copper-catalyzed ring-opening trifluoromethylthiolation/trifluoromethylselenolation of cyclopropanols with TsSCF 3 or Se-(trifluoromethyl) 4-methoxybenzenesulfonoselenoate. Org Biomol Chem 2023; 21:3675-3683. [PMID: 37067868 DOI: 10.1039/d3ob00228d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
We report a ring-opening trifluoromethylthiolation of cyclopropanols with TsSCF3 by using Cu(OAc)2 as the catalyst. Moreover, by using this strategy, the trifluoromethylselenolation of cyclopropanols with Se-(trifluoromethyl) 4-methoxybenzenesulfonoselenoate to access β-SeCF3-substituted carbonyl compounds is achieved for the first time. The broad substrate scope, readily accessible reagents and cheap catalyst make this protocol an alternative and efficient method for the synthesis of β-SCF3-substituted or β-SeCF3-substituted carbonyl compounds.
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Affiliation(s)
- Ankun Li
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, China.
| | - Xiaoxing Wang
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, China.
| | - Yuqing Liu
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, China.
| | - Delong Hao
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, China.
| | - Xia Zhao
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, China.
| | - Kui Lu
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
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4
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Shen Q. A Toolbox of Reagents for Trifluoromethylthiolation: From Serendipitous Findings to Rational Design. J Org Chem 2023; 88:3359-3371. [PMID: 36795864 DOI: 10.1021/acs.joc.2c02777] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Two types of electrophilic trifluoromethylthiolating reagents were developed in the past 10 years in our laboratory. The development of the first type of reagent, trifluoromethanesulfenate I, which is highly reactive toward a variety of nucleophiles, was based on an unexpected discovery in the initial design for the development of an electrophilic trifluoromethylthiolating reagent with a hypervalent iodine skeleton. A structure-activity study disclosed that α-cumyl trifluoromethanesulfenate (reagent II) without the iodo substituent is equally effective. Subsequent derivatization let us develop an α-cumyl bromodifluoromethanesulfenate III that could be used for the preparation of [18F]ArSCF3. To remediate the low reactivity of the type I electrophilic trifluoromethylthiolating reagent for Friedel-Crafts trifluoromethylthiolation of electron-rich (hetero)arenes, we designed and prepared N-trifluoromethylthiosaccharin IV, which exhibits broad reactivity toward various nucleophiles, including electron-rich arenes. A comparison of the structure of N-trifluoromethylthiosaccharin IV with that of N-trifluoromethylthiophthalimide showed that the replacement of one carbonyl group in N-trifluoromethylthiophthalimide with a sulfonyl group made N-trifluoromethylthiosaccharin IV much more electrophilic. Thus, the replacement of both carbonyls with two sulfonyl groups would further increase the electrophilicity. Such a rationale prompted us to design and develop the current most electrophilic trifluoromethylthiolating reagent, N-trifluoromethylthiodibenzenesulfonimide V, and its reactivity was much higher than that of N-trifluoromethylthiosaccharin IV. We further developed an optically pure electrophilic trifluoromethylthiolating reagent, (1S)-(-)-N-trifluoromethylthio-2,10-camphorsultam VI, for the preparation of optically active trifluoromethylthio-substituted carbon stereogenic centers. Reagents I-VI now constitute a powerful toolbox for the introduction of the trifluoromethylthio group into the target molecules.
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Affiliation(s)
- Qilong Shen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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5
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Cong F, Mega RS, Chen J, Day CS, Martin R. Trifluoromethylation of Carbonyl and Unactivated Olefin Derivatives by C(sp 3 )-C Bond Cleavage. Angew Chem Int Ed Engl 2022; 62:e202214633. [PMID: 36416716 DOI: 10.1002/anie.202214633] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
Herein, we report a Cu-mediated trifluoromethylation of carbonyl-type compounds and unactivated olefins enabled by visible-light irradiation via σ C(sp3 )-C bond-functionalization. The reaction is distinguished by its modularity, mild conditions and wide scope-even in the context of late-stage functionalization-thus offering a complementary approach en route to valuable C(sp3 )-CF3 architectures from easily accessible precursors.
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Affiliation(s)
- Fei Cong
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, c/Marcel ⋅ lí Domingo, 1, 43007, Tarragona, Spain
| | - Riccardo S Mega
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Jinhong Chen
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, c/Marcel ⋅ lí Domingo, 1, 43007, Tarragona, Spain
| | - Craig S Day
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, c/Marcel ⋅ lí Domingo, 1, 43007, Tarragona, Spain
| | - Ruben Martin
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluïs Companys 23, 08010, Barcelona, Spain
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6
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Ramar T, Ilangovan A, Meanwell NA, Subbaiah MAM. Electrophilic Hydrazination of Cyclopropanols Using Azodicarboxylates via Copper(II) Catalysis: An Umpolung Strategy to Access β-Hydrazino Ketone Motifs. J Org Chem 2022; 87:14596-14608. [PMID: 36190309 DOI: 10.1021/acs.joc.2c01980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The scope of an umpolung approach to expand synthetic access to bifunctional γ-keto hydrazine intermediates via electrophilic amination of β-homoenolates derived from cyclopropanol precursors that took advantage of azodicarboxylates or azodicarboxamides as electron-deficient nitrogen sources was examined. This new synthetic procedure avails commercially available or readily accessible starting materials along with a ligand-free Cu(II) salt as an inexpensive catalyst. Using this operationally simple reaction, which proceeds under mild conditions (open-flask and ambient temperature) and is suitable for multigram scale, preparative applications were established with a range of aryl- and alkyl-substituted cyclopropanols and azodicarboxylate/azodicarboxamide substrates (26 examples, 74-95% yields). Further, the obtained products have been shown to provide convenient synthetic access to γ-hydroxy hydrazide, γ-amino hydrazide, and heterocyclic derivatives.
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Affiliation(s)
- Thangeswaran Ramar
- Department of Medicinal Chemistry, Biocon Bristol Myers Squibb R&D Centre, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, Karnataka, India.,Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, Tamil Nadu, India
| | - Andivelu Ilangovan
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, Tamil Nadu, India
| | - Nicholas A Meanwell
- Department of Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, PO Box 4000, Princeton, New Jersey 08543-4000, United States
| | - Murugaiah A M Subbaiah
- Department of Medicinal Chemistry, Biocon Bristol Myers Squibb R&D Centre, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, Karnataka, India
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7
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More DA, Mujahid M, Muthukrishnan M. Metal‐ And Light‐Free Direct C‐3 Ketoalkylation of Quinoxalin‐2(1
H
)‐Ones with Cyclopropanols in Aqueous Medium. ChemistrySelect 2022. [DOI: 10.1002/slct.202203597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Devidas A. More
- Division of Organic Chemistry CSIR - National Chemical Laboratory Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - M. Mujahid
- Division of Organic Chemistry CSIR - National Chemical Laboratory Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - M. Muthukrishnan
- Division of Organic Chemistry CSIR - National Chemical Laboratory Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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8
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Zhai S, Qiu S, Yang S, Gao X, Feng X, Yun C, Han N, Niu Y, Wang J, Zhai H. Facile access to β-hydroxyl ketones via a cobalt-catalyzed ring-opening/hydroxylation cascade of cyclopropanols. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.06.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Yu S, Ai Y, Hu L, Lu G, Duan C, Ma Y. Palladium-Catalyzed Stagewise Strain-Release-Driven C-C Activation of Bicyclo[1.1.1]pentanyl Alcohols. Angew Chem Int Ed Engl 2022; 61:e202200052. [PMID: 35332648 DOI: 10.1002/anie.202200052] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Indexed: 12/20/2022]
Abstract
A palladium-catalyzed chemoselective coupling of readily available bicyclo[1.1.1]pentanyl alcohols (BCP-OH) with various halides is reported, which offers expedient approaches to a wide range of cyclobutanone and β,γ-enone skeletons via single or double C-C activation. The chemistry shows a broad substrate scope in terms of both the range of BCP-OH and halides including a series of natural product derivatives. Moreover, dependency of reaction chemodivergence on base additive has been investigated through experimental and density functional theory (DFT) studies, which is expected to significantly enrich the reaction modes and increase the synthetic potential of BCP-OH in preparing more complex molecules.
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Affiliation(s)
- Songjie Yu
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Yinan Ai
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Lingfei Hu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, 250100, China
| | - Gang Lu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, 250100, China
| | - Chunying Duan
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Yue Ma
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
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10
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Kitabayashi A, Mizushima S, Higashida K, Yasuda Y, Shimizu Y, Sawamura M. Insights into the Mechanism of Enantioselective Copper‐Catalyzed Ring‐Opening Allylic Alkylation of Cyclopropanols. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200157] [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]
Affiliation(s)
- Akito Kitabayashi
- Department of Chemistry Faculty of Science Hokkaido University Kita 10 Nishi 8, Kita-ku Sapporo Hokkaido 060-0810 Japan
| | - Sho Mizushima
- Department of Chemistry Faculty of Science Hokkaido University Kita 10 Nishi 8, Kita-ku Sapporo Hokkaido 060-0810 Japan
| | - Kosuke Higashida
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Kita 21 Nishi 10, Kita-ku Sapporo Hokkaido 001-0021 Japan
- Department of Chemistry Faculty of Science Hokkaido University Kita 10 Nishi 8, Kita-ku Sapporo Hokkaido 060-0810 Japan
| | - Yuto Yasuda
- Department of Chemistry Faculty of Science Hokkaido University Kita 10 Nishi 8, Kita-ku Sapporo Hokkaido 060-0810 Japan
| | - Yohei Shimizu
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Kita 21 Nishi 10, Kita-ku Sapporo Hokkaido 001-0021 Japan
- Department of Chemistry Faculty of Science Hokkaido University Kita 10 Nishi 8, Kita-ku Sapporo Hokkaido 060-0810 Japan
| | - Masaya Sawamura
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Kita 21 Nishi 10, Kita-ku Sapporo Hokkaido 001-0021 Japan
- Department of Chemistry Faculty of Science Hokkaido University Kita 10 Nishi 8, Kita-ku Sapporo Hokkaido 060-0810 Japan
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11
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Yu S, Ai Y, Hu L, Lu G, Duan C, Ma Y. Palladium‐Catalyzed Stagewise Strain‐Release‐Driven C−C Activation of Bicyclo[1.1.1]pentanyl Alcohols. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Songjie Yu
- Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Yinan Ai
- Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Lingfei Hu
- School of Chemistry and Chemical Engineering Key Laboratory of Colloid and Interface Chemistry Ministry of Education Shandong University Jinan 250100 China
| | - Gang Lu
- School of Chemistry and Chemical Engineering Key Laboratory of Colloid and Interface Chemistry Ministry of Education Shandong University Jinan 250100 China
| | - Chunying Duan
- Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Yue Ma
- Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
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12
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Hou L, Huang W, Wu X, Qu J, Chen Y. Nickel-Catalyzed Carbonylation of Cyclopropanol with Benzyl Bromide for Multisubstituted Cyclopentenone Synthesis. Org Lett 2022; 24:2699-2704. [PMID: 35389666 DOI: 10.1021/acs.orglett.2c00798] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Herein, we reported a Ni-catalyzed carbonylation of cyclopropanol with benzyl bromide to afford multisubstituted cyclopentenone under 1 atm of CO. The reaction proceeds through cascade carbonylation of benzyl bromides, followed by generation of nickel homoenolate from cyclopropanols via β-C elimination to afford 1,4-diketones, which undergoes intramolecular Aldol condensation to furnish highly substituted cyclopentenone derivatives in moderate to good yields. The reaction exhibits high functional group tolerance with broad substrate scope.
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Affiliation(s)
- Liting Hou
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wenyi Huang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xianqing Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jingping Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yifeng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
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13
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Zhang Q, Yuan W, Shi Y, Pan F. Organophotocatalytic ring opening/remote trifluoromethylselenolation of cycloalkanols. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Ramar T, Subbaiah MAM, Ilangovan A. Orchestrating a β-Hydride Elimination Pathway in Palladium(II)-Catalyzed Arylation/Alkenylation of Cyclopropanols Using Organoboron Reagents. J Org Chem 2022; 87:4508-4523. [PMID: 35289619 DOI: 10.1021/acs.joc.1c02735] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The scope of chemoselective β-hydride elimination in the context of arylation/alkenylation of homoenolates from cyclopropanol precursors using organoboronic reagents as transmetalation coupling partners was examined. The reaction optimization paradigm revealed a simple ligand-free Pd(II) catalytic system to be most efficient under open air conditions. The preparative scope, which was investigated with 48 examples, supported the applicability of this reaction to a wide range of substrates tolerating a variety of functional groups while delivering β-substituted enone and dienone derivatives in 62-95% yields.
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Affiliation(s)
- Thangeswaran Ramar
- Department of Medicinal Chemistry, Biocon Bristol Myers Squibb R&D Centre, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India.,Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, India
| | - Murugaiah A M Subbaiah
- Department of Medicinal Chemistry, Biocon Bristol Myers Squibb R&D Centre, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Andivelu Ilangovan
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, India
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15
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Pati BV, Ghosh A, Yadav K, Banjare SK, Pandey S, Lourderaj U, Ravikumar PC. Palladium-catalyzed selective C-C bond cleavage and stereoselective alkenylation between cyclopropanol and 1,3-diyne: one-step synthesis of diverse conjugated enynes. Chem Sci 2022; 13:2692-2700. [PMID: 35340856 PMCID: PMC8890101 DOI: 10.1039/d1sc04780a] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 01/24/2022] [Indexed: 12/22/2022] Open
Abstract
The stereoselective synthesis of 1,3-enynes from 1,3-diynes is demonstrated by palladium-catalyzed selective C–C bond cleavage of cyclopropanol. Exclusive formation of mono-alkenylated adducts was achieved by eliminating the possibility of di-functionalization with high stereoselectivity. Indeed, this protocol worked very well with electronically and sterically diverse substrates. Several studies, including deuterium labeling experiments and intermolecular competitive experiments, were carried out to understand the mechanistic details. The atomic-level mechanism followed in the catalytic process was also validated using DFT calculations, and the rate-controlling states in the catalytic cycle were identified. Furthermore, preliminary mechanistic investigations with radical scavengers revealed the non-involvement of the radical pathway in this transformation. Palladium-catalyzed tandem activation and functionalization of readily accessible cyclopropanols have been demonstrated to access valuable conjugated enynes from 1,3-diynes with high stereo-selectivity.![]()
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Affiliation(s)
- Bedadyuti Vedvyas Pati
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Jatani Khurda 752050 Odisha India
| | - Asit Ghosh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Jatani Khurda 752050 Odisha India
| | - Komal Yadav
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Jatani Khurda 752050 Odisha India
| | - Shyam Kumar Banjare
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Jatani Khurda 752050 Odisha India
| | - Shalini Pandey
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Jatani Khurda 752050 Odisha India
| | - Upakarasamy Lourderaj
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Jatani Khurda 752050 Odisha India
| | - Ponneri C Ravikumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Jatani Khurda 752050 Odisha India
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16
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Avullala T, Nguyen HH, Dakarapu US, Asgari P, Hua Y, Jeon J. Catalytic Net Oxidative C-C Activation and Silylation of Cyclopropanols with a Traceless Acetal Directing Group. ACS Catal 2022; 12:1764-1774. [PMID: 35573128 DOI: 10.1021/acscatal.1c04628] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Redox-neutral carbon-carbon (C-C) bond activation and functionalization strategies of cyclopropanols that give metallo homoenolate have offered merits to construct a range of useful β-functionalized ketones in an inverse-polarity fashion. Discovery and identification of oxidative C-C activation reactions of cyclopropanols that generate metallo enolate-homoenolate would provide an opportunity to afford α,β-difunctionalized ketones. We report catalytic, net oxidative C-C activation, and silylation of cyclopropanols with traceless acetal directing groups under consecutive Ir and Rh catalysis in regio-, stereo-, and chemo-selective fashion. In detail, Ir-catalyzed hydrosilylation of cyclopropyl acetates provides the acetal directing group in quantitative yield. Rh-catalyzed proximal C-C silylation of the resulting cyclopropyl silyl acetal produces the metallo enolate-homoenolate equivalent, dioxasilepine, which uniquely holds an interconnected β-silyl moiety and Z-vinyl acetal. Upon sequential treatment of a silaphile that removes the acetal directing group and electrophile, the seven-membered silicon-containing heterocycle, serving as the ketone α,β-dianion equivalent, delivers α,β-difunctionalized ketones. Scope of the hitherto unexplored reactivity of cyclopropanols toward net oxidative C-C silylation and the versatility of the resulting dioxasilepines were demonstrated. These include late-stage, net oxidative C-C silylation of biologically relevant molecules and facile production of a range of α,β-difunctionalized ketones. Preliminary mechanistic studies suggest that the C-C activation harnessing the electron-rich Wilkinson-type catalyst is likely the turnover-determining step and a Rh-π interaction is the key to the efficient metal insertion to the proximal C-C bond in cyclopropanols.
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Affiliation(s)
- Thirupataiah Avullala
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Hiep H. Nguyen
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Udaya Sree Dakarapu
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Parham Asgari
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Yuanda Hua
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Junha Jeon
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
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17
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Sakurai S, Inagaki T, Kodama T, Yamanaka M, Tobisu M. Palladium-Catalyzed Siloxycyclopropanation of Alkenes Using Acylsilanes. J Am Chem Soc 2022; 144:1099-1105. [PMID: 35019275 DOI: 10.1021/jacs.1c11497] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Currently, catalytically transferable carbenes are limited to electron-deficient and neutral derivatives, and electron-rich carbenes bearing an alkoxy group (i.e., Fischer-type carbenes) cannot be used in catalytic cyclopropanation because of the lack of appropriate carbene precursors. We report herein that acylsilanes can serve as a source of electron-rich carbenes under palladium catalysis, enabling cyclopropanation of a range of alkenes. This reactivity profile is in sharp contrast to that of metal-free siloxycarbenes, which are unreactive toward normal alkenes. The resulting siloxycyclopropanes serve as valuable homoenolate equivalents, allowing rapid access to elaborate β-functionalized ketones.
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Affiliation(s)
- Shun Sakurai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tetsuya Inagaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takuya Kodama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Yamanaka
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Mamoru Tobisu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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18
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Wang J, Li X. Asymmetric β-Arylation of Cyclopropanols Enabled by Photoredox and Nickel Dual Catalysis. Chem Sci 2022; 13:3020-3026. [PMID: 35382467 PMCID: PMC8905987 DOI: 10.1039/d1sc07237d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/16/2022] [Indexed: 11/21/2022] Open
Abstract
The enantioselective functionalization and transformation of readily available cyclopropyl compounds are synthetically appealing yet challenging topics in organic synthesis. Here we report an asymmetric β-arylation of cyclopropanols with aryl bromides...
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Affiliation(s)
- Jianhua Wang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, 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), NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University Jinan Shandong 250012 China
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19
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Shirsath SR, Chandgude SM, Muthukrishnan M. Iron catalyzed tandem ring opening/1,6-conjugate addition of cyclopropanols with p-quinone methides: new access to γ,γ-diaryl ketones. Chem Commun (Camb) 2021; 57:13582-13585. [PMID: 34846388 DOI: 10.1039/d1cc05997a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An iron(III) catalyzed tandem ring opening/1,6-conjugate addition of cyclopropanols to p-quinone methides leading to γ,γ-diaryl ketones has been described. This catalytic protocol provides a novel and efficient method to access γ,γ-diaryl ketone derivatives in good to excellent yields with high functional group tolerance. Importantly, γ,γ-diaryl ketone can be further functionalized to give a versatile set of useful products.
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Affiliation(s)
- Sachin R Shirsath
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sagar M Chandgude
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India.
| | - M Muthukrishnan
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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20
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Zhang Q, Zhou S, Shi C, Yin L. Catalytic Asymmetric Allylic Substitution with Copper(I) Homoenolates Generated from Cyclopropanols. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110709] [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)
- Qi Zhang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Si‐Wei Zhou
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Chang‐Yun Shi
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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21
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Zhang Q, Zhou SW, Shi CY, Yin L. Catalytic Asymmetric Allylic Substitution with Copper(I) Homoenolates Generated from Cyclopropanols. Angew Chem Int Ed Engl 2021; 60:26351-26356. [PMID: 34617380 DOI: 10.1002/anie.202110709] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/30/2021] [Indexed: 12/23/2022]
Abstract
By using copper(I) homoenolates as nucleophiles, which are generated through the ring-opening of 1-substituted cyclopropane-1-ols, a catalytic asymmetric allylic substitution with allyl phosphates is achieved in high to excellent yields with high enantioselectivity. Both 1-substituted cyclopropane-1-ols and allylic phosphates enjoy broad substrate scopes. Remarkably, various functional groups, such as ether, ester, tosylate, imide, alcohol, nitro, and carbamate are well tolerated. Moreover, the present method is nicely extended to the asymmetric construction of quaternary carbon centers. Some control experiments argue against a radical-based reaction mechanism and a catalytic cycle based on a two-electron process is proposed. Finally, the synthetic utilities of the product are showcased by means of the transformations of the terminal olefin group and the ketone group.
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Affiliation(s)
- Qi Zhang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Si-Wei Zhou
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Chang-Yun Shi
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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22
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Wu S, Li J, He R, Jia K, Chen Y. Terminal Trifluoromethylation of Ketones via Selective C-C Cleavage of Cycloalkanols Enabled by Hypervalent Iodine Reagents. Org Lett 2021; 23:9204-9209. [PMID: 34787436 DOI: 10.1021/acs.orglett.1c03526] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the first terminal trifluoromethylation at aryl and alkyl ketones' γ, δ, ε, or more remote sites via the selective C-C bond cleavage of cycloalkanols. The noncovalent interactions between alcohols and hypervalent iodines(III) reagents were disclosed to activate both alcohols and the Togni I reagent in the dual photoredox/copper catalysis for the transformation. This reaction was scalable to the gram-scale synthesis, applicable to the structurally complex steroid trifluoromethylation, and extendable to the pentafluoroethylation.
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Affiliation(s)
- Shuang Wu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Centre of Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Junzhao Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Centre of Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ru He
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Centre of Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Kunfang Jia
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Centre of Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yiyun Chen
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Centre of Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China.,School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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23
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Zhu XX, Wang HQ, Li CG, Xu XL, Xu J, Dai JJ, Xu HJ. Electrochemical Trifluoromethylation of Thiophenols with Sodium Trifluoromethanesulfinate. J Org Chem 2021; 86:16114-16120. [PMID: 33416327 DOI: 10.1021/acs.joc.0c02659] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We developed an electrochemical trifluoromethylation of thiophenols without the use of metal catalysts and oxidants. This reaction features mild reaction conditions, readily available substrate, as well as moderate to good yields. In addition, this protocol can be easily scaled up with moderate efficiency.
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Affiliation(s)
- Xing-Xing Zhu
- School of Food and Biological Engineering, School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China
| | - Huai-Qin Wang
- School of Food and Biological Engineering, School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chen-Guang Li
- School of Food and Biological Engineering, School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xiao-Lan Xu
- School of Medical Science, Anhui Medical University, Hefei 230032, China
| | - Jun Xu
- School of Food and Biological Engineering, School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jian-Jun Dai
- School of Food and Biological Engineering, School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hua-Jian Xu
- School of Food and Biological Engineering, School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China
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24
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Lou C, Wang X, Lv L, Li Z. Iron-Catalyzed Ring-Opening Reactions of Cyclopropanols with Alkenes and TBHP: Synthesis of 5-Oxo Peroxides. Org Lett 2021; 23:7608-7612. [PMID: 34528812 DOI: 10.1021/acs.orglett.1c02824] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The ring opening of cyclopropanols is rarely used in multicomponent reactions. Herein we report the three-component reaction of cyclopropanols with alkenes and tert-butyl hydroperoxide (TBHP) catalyzed by an iron catalyst. This protocol enables the incorporation of both the β-carbonyl fragment and a peroxy unit across the C═C double bond regioselectively, thus allowing an efficient, facile access to 5-oxo peroxides. Modification of the biologically active molecules and various downstream derivatizations of the peroxides are also demonstrated.
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Affiliation(s)
- Chenhao Lou
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Xin Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Leiyang Lv
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Zhiping Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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25
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Cobalt-catalyzed atom-economical, diastereo- and enantioselective coupling of aldimines and cyclopropanols. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1062-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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26
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Nobile E, Castanheiro T, Besset T. Radical-Promoted Distal C-H Functionalization of C(sp 3 ) Centers with Fluorinated Moieties. Angew Chem Int Ed Engl 2021; 60:12170-12191. [PMID: 32897632 DOI: 10.1002/anie.202009995] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/28/2020] [Indexed: 12/12/2022]
Abstract
Due to their unique properties, fluorinated scaffolds are pivotal compounds in pharmaceuticals, agrochemicals, and materials science. Over the last years, the development of versatile strategies for the selective synthesis of fluorinated molecules by direct C-H bond functionalization has attracted a lot of attention. In particular, the design of novel transformations based on a radical process was a bottleneck for distal C-H functionalization reactions, offering synthetic solutions for the selective introduction of fluorinated groups. This Minireview highlights the major contributions in this blossoming field. The development of new methodologies for the remote functionalization of aliphatic derivatives with various fluorinated groups based on a 1,5-hydrogen atom transfer process and a β-fragmentation reaction will be showcased and discussed.
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Affiliation(s)
- Enzo Nobile
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000, Rouen, France
| | - Thomas Castanheiro
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000, Rouen, France
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000, Rouen, France
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27
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Nobile E, Castanheiro T, Besset T. Radical‐Promoted Distal C−H Functionalization of C(sp
3
) Centers with Fluorinated Moieties. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202009995] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Enzo Nobile
- Normandie Univ INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
| | - Thomas Castanheiro
- Normandie Univ INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
| | - Tatiana Besset
- Normandie Univ INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
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28
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Sekiguchi Y, Yoshikai N. Metal-Catalyzed Transformations of Cyclopropanols via Homoenolates. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200270] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yoshiya Sekiguchi
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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29
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Wang Z, Hu Y, Jin H, Liu Y, Zhou B. Nickel-Catalyzed Arylation/Alkenylation of tert-Cyclobutanols with Aryl/Alkenyl Triflates via a C -C Bond Cleavage. J Org Chem 2021; 86:466-474. [PMID: 33252235 DOI: 10.1021/acs.joc.0c02209] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, we first present a nickel-catalyzed arylation and alkenylation of tert-cyclobutanols with aryl/alkenyl triflates via a C-C bond cleavage. An array of γ-substituted ketones was obtained in moderate-to-good yields, thus featuring earth-abundant nickel catalysis, broad substrate scope, and simple reaction conditions. Preliminary mechanistic experiments indicated that β-carbon elimination pathways might be involved in the catalytic cycle.
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Affiliation(s)
- Zhen Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yuanyuan Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hongwei Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yunkui Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Bingwei Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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30
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Yang C, Liu Z, Hu X, Xie H, Jiang H, Zeng W. Rh( iii)-Catalyzed Csp 2–Csp 3 bond alkoxylation of α-indolyl alcohols via C–C σ bond cleavage. Org Chem Front 2021. [DOI: 10.1039/d1qo00194a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A Rh(iii)-catalyzed direct Csp2–Csp3 bond alkoxylation of α-(2-indolyl)alcohols with alcohols has been achieved via C–C sigma bond/C–O single bond switch.
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Affiliation(s)
- Can Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Zhipeng Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Xinwei Hu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Haisheng Xie
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Wei Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
- China
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31
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Zubrytski DM, Elek GZ, Lopp M, Kananovich DG. Generation of Mixed Anhydrides via Oxidative Fragmentation of Tertiary Cyclopropanols with Phenyliodine(III) Dicarboxylates. Molecules 2020; 26:molecules26010140. [PMID: 33396847 PMCID: PMC7794720 DOI: 10.3390/molecules26010140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/24/2020] [Accepted: 12/26/2020] [Indexed: 11/20/2022] Open
Abstract
Oxidative fragmentation of tertiary cyclopropanols with phenyliodine(III) dicarboxylates in aprotic solvents (dichloromethane, chloroform, toluene) produces mixed anhydrides. The fragmentation reaction is especially facile with phenyliodine(III) reagents bearing electron-withdrawing carboxylate ligands (trifluoroacetyl, 2,4,6-trichlorobenzoyl, 3-nitrobenzoyl), and affords 95−98% yields of the corresponding mixed anhydride products. The latter can be straightforwardly applied for the acylation of various nitrogen, oxygen and sulfur-centered nucleophiles (primary and secondary amines, hydroxylamines, primary alcohols, phenols, thiols). Intramolecular acylation yielding macrocyclic lactones can also be performed. The developed transformation has bolstered the synthetic utility of cyclopropanols as pluripotent intermediates in diversity-oriented synthesis of bioactive natural products and their synthetic congeners. For example, it was successfully applied for the last-stage modification of a cyclic peptide to produce a precursor of a known histone deacetylase inhibitor.
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Affiliation(s)
- Dzmitry M. Zubrytski
- Department of Organic Chemistry, Belarusian State University, Leningradskaya 14, 220050 Minsk, Belarus;
| | - Gábor Zoltán Elek
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
| | - Margus Lopp
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
| | - Dzmitry G. Kananovich
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
- Correspondence: ; Tel.: +372-6204382
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32
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Mechanism of Rh(III)-catalyzed alkylation of N-pyrimidylindoline with cyclopropanols: A DFT study. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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33
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Chen M, Lou M, Deng Z, Yang Q, Peng Y. Rhodium(III)‐Catalyzed Alkylation of 2‐Arylquinazolin‐4(3H)‐ones with Cyclopropanols by Directing C‐H Activation and Ring Opening at Ambient Temperature. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000459] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mu‐Wang Chen
- Key Laboratory of Small Functional Organic Molecule Ministry of Education Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang Jiangxi 330022 P. R. China
| | - Minhao Lou
- Key Laboratory of Small Functional Organic Molecule Ministry of Education Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang Jiangxi 330022 P. R. China
| | - Zhihong Deng
- Key Laboratory of Small Functional Organic Molecule Ministry of Education Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang Jiangxi 330022 P. R. China
| | - Qin Yang
- Key Laboratory of Small Functional Organic Molecule Ministry of Education Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang Jiangxi 330022 P. R. China
| | - Yiyuan Peng
- Key Laboratory of Small Functional Organic Molecule Ministry of Education Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang Jiangxi 330022 P. R. China
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34
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Liang W, Cai X, Dai M. Cu-catalyzed hydroxycyclopropanol ring-opening cyclization to tetrahydrofurans and tetrahydropyrans: short total syntheses of hyperiones. Chem Sci 2020; 12:1311-1316. [PMID: 34163894 PMCID: PMC8179039 DOI: 10.1039/d0sc05556e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 11/20/2020] [Indexed: 01/04/2023] Open
Abstract
Tetrahydrofurans (THFs) and tetrahydropyrans (THPs) are important core scaffolds frequently found in many molecules of medicinal importance. Herein, we report a novel copper-catalyzed hydroxycyclopropanol ring-opening cyclization methodology to synthesize di- or tri-substituted THFs and THPs. In this reaction, a strained C-C bond was cleaved and a new Csp3-O bond was formed to produce the aforementioned O-heterocycles. The new THF synthesis features a broad substrate scope, scalability, and good functional-group tolerability. It enabled us to complete the shortest enantioselective syntheses of hyperiones A and B (3 and 4 steps, respectively), which is significantly shorter than the previously reported two total syntheses (≥10 steps).
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Affiliation(s)
- Weida Liang
- Department of Chemistry and Center for Cancer Research, Purdue University West Lafayette IN 47907 USA
| | - Xinpei Cai
- Department of Chemistry and Center for Cancer Research, Purdue University West Lafayette IN 47907 USA
| | - Mingji Dai
- Department of Chemistry and Center for Cancer Research, Purdue University West Lafayette IN 47907 USA
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35
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McDonald TR, Mills LR, West MS, Rousseaux SAL. Selective Carbon–Carbon Bond Cleavage of Cyclopropanols. Chem Rev 2020; 121:3-79. [DOI: 10.1021/acs.chemrev.0c00346] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tyler R. McDonald
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - L. Reginald Mills
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Michael S. West
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Sophie A. L. Rousseaux
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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36
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Zhou Y, Wu M, Liu Y, Cheng C, Zhu G. Synthesis of Polysubstituted Pyrroles via Silver-Catalyzed Oxidative Radical Addition of Cyclopropanols to Imines. Org Lett 2020; 22:7542-7546. [PMID: 32915585 DOI: 10.1021/acs.orglett.0c02735] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A silver-catalyzed formal [3 + 2] cycloaddition reaction, with cyclopropanols as a C3 subunit and imines as a two-atom subunit, is developed. The reaction takes place under mild conditions and produces a broad array of polysubstituted pyrroles in medium to high yields. It represents the first example of oxidative radical addition to imines, thus offering a new choice for the direct C-H functionalization of imines.
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Affiliation(s)
- Yulu Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P.R. China
| | - Mingchang Wu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P.R. China
| | - Yi Liu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P.R. China
| | - Cungui Cheng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P.R. China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P.R. China
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37
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Jiang C, Wang L, Zhang H, Chen P, Guo YL, Liu G. Enantioselective Copper-Catalyzed Trifluoromethylation of Benzylic Radicals via Ring Opening of Cyclopropanols. Chem 2020. [DOI: 10.1016/j.chempr.2020.07.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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38
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Cheng BQ, Zhang SX, Cui YY, Chu XQ, Rao W, Xu H, Han GZ, Shen ZL. Copper(II)-Mediated Ring Opening/Alkynylation of Tertiary Cyclopropanols by Using Nonmodified Terminal Alkynes. Org Lett 2020; 22:5456-5461. [DOI: 10.1021/acs.orglett.0c01828] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bu-Qing Cheng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Si-Xuan Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yan-Ying Cui
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xue-Qiang Chu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Weidong Rao
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Haiyan Xu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China
| | - Guo-Zhi Han
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zhi-Liang Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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39
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Wu B, Yang J, Gao M, Hu L. Ring-Strain-Enabled Catalytic Asymmetric Umpolung C–O Bond-Forming Reactions of 1,2-Oxazetidines for the Synthesis of Functionalized Chiral Ethers. Org Lett 2020; 22:5561-5566. [DOI: 10.1021/acs.orglett.0c01916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Binyu Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Jinggang Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Min Gao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Lin Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
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40
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Ramar T, Subbaiah MAM, Ilangovan A. Utility of Organoboron Reagents in Arylation of Cyclopropanols via Chelated Pd(II) Catalysis: Chemoselective Access to β-Aryl Ketones. J Org Chem 2020; 85:7711-7727. [DOI: 10.1021/acs.joc.0c00160] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thangeswaran Ramar
- Discovery Chemistry, BBRC, Syngene, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, India
| | | | - Andivelu Ilangovan
- Department of Chemistry, Bharathidasan University, Palkalaiperur, Thiruchirapalli 620024, India
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41
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Zeng X, Wang X, Zhang Y, Zhu L, Zhao Y. A silver-catalyzed radical ring-opening reaction of cyclopropanols with sulfonyl oxime ethers. Org Biomol Chem 2020; 18:3734-3739. [PMID: 32364186 DOI: 10.1039/d0ob00055h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A silver-catalyzed ring-opening reaction of cyclopropanols with sulfonyl oxime ethers has been developed. The protocol was conducted under mild reaction conditions to provide a series of γ-keto oxime ethers with moderate to good yields. The reaction proceeded in a stereoselective manner for CF3-containing oxime ethers to provide a single stereoisomer, while an inseparable E and Z mixture was obtained for CN-containing oxime ethers. Mechanistic studies indicate that the reaction proceeded via a radical mechanism.
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Affiliation(s)
- Xiaobao Zeng
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, People's Republic of China.
| | - Xin Wang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, People's Republic of China.
| | - Yanan Zhang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, People's Republic of China.
| | - Li Zhu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, People's Republic of China.
| | - Yu Zhao
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, People's Republic of China.
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42
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Mao Y, Jiang L, Hu S, Tang J, Luo Y, Ding X, Chen G, Yang J. A lanthanide ion-doped Ba 3Sc 2F 12 phosphor: hydrothermal synthesis, morphological control, energy transfer, and temperature-sensing performance. Dalton Trans 2020; 49:5881-5889. [PMID: 32307489 DOI: 10.1039/d0dt01003k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ba3Sc2F12 crystals were synthesized by a facile one-step hydrothermal method with Ba/Sc raw material in a ratio of 3 : 2. With the F/Sc ratio increasing from 4 to 8, the obtained crystal's morphology evolved gradually from a strip to a chocolate shape; further, the use of the additives, such as CTAB and EDTA, the obtained crystal's morphology changed from strip to cubic. The energy transfer of Ce3+→ Tb3+ in the Ba3Sc2F12 host was also explored, and it was found to belong to a dipole-dipole interaction mechanism; the color of the light could be adjusted from blue-violet to green due to the different energy transfer efficiencies at different Ce3+ and Tb3+ ion-doping concentrations. Because of the thermal coupling level of Er3+ (2H11/2→4I15/2 and 4S3/2→4I15/2), Ba3Sc2F12:14%Yb3+,2%Er3+ phosphors showed an excellent temperature-sensing ability with SA(max) = 0.0043 K-1 and Tmax = 523 K, which are much better than the previously reported values for Yb3+/Er3+ co-doped systems. The as-prepared lanthanide ion-doped phosphors might have potential to serve as color light/displays and temperature control/sensors.
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Affiliation(s)
- Yini Mao
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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43
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Liu Q, Wang Q, Xie G, Fang Z, Ding S, Wang X. Metal-Free Direct C-H β-Carbonyl Alkylation of Heteroarenes with Cyclopropanols Mediated by K2
S2
O8. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000289] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Qiang Liu
- School of Materials Science and Engineering; School of Environment and Civil Engineering; Dongguan University of Technology; 523808 Dongguan P. R. China
- Department of Applied Chemistry; School of Science; Xi'an Jiaotong University; 710049 Xi'an P. R. China
| | - Qiang Wang
- School of Materials Science and Engineering; School of Environment and Civil Engineering; Dongguan University of Technology; 523808 Dongguan P. R. China
- Department of Applied Chemistry; School of Science; Xi'an Jiaotong University; 710049 Xi'an P. R. China
| | - Guanqun Xie
- School of Materials Science and Engineering; School of Environment and Civil Engineering; Dongguan University of Technology; 523808 Dongguan P. R. China
| | - Zeyang Fang
- School of Materials Science and Engineering; School of Environment and Civil Engineering; Dongguan University of Technology; 523808 Dongguan P. R. China
| | - Shujiang Ding
- Department of Applied Chemistry; School of Science; Xi'an Jiaotong University; 710049 Xi'an P. R. China
| | - Xiaoxia Wang
- School of Materials Science and Engineering; School of Environment and Civil Engineering; Dongguan University of Technology; 523808 Dongguan P. R. China
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44
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Wu L, Wang L, Chen P, Guo Y, Liu G. Enantioselective Copper‐Catalyzed Radical Ring‐Opening Cyanation of Cyclopropanols and Cyclopropanone Acetals. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000202] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lianqian Wu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Lei Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Pinghong Chen
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Yin‐Long Guo
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Guosheng Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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45
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Pati BV, Ghosh A, Ravikumar PC. Rhodium-Catalyzed Room Temperature C–C Activation of Cyclopropanol for One-Step Access to Diverse 1,6-Diketones. Org Lett 2020; 22:2854-2860. [DOI: 10.1021/acs.orglett.0c00967] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Bedadyuti Vedvyas Pati
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Jatani, Khurda, 752050 Odisha, India
| | - Asit Ghosh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Jatani, Khurda, 752050 Odisha, India
| | - P. C. Ravikumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Jatani, Khurda, 752050 Odisha, India
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46
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Sakurai S, Tsuzuki S, Sakamoto R, Maruoka K. Cu-Catalyzed Generation of Alkyl Radicals from Alkylsilyl Peroxides and Subsequent C(sp 3)-C(sp 2) Cross-Coupling with Arylboronic Acids. J Org Chem 2020; 85:3973-3980. [PMID: 31939666 DOI: 10.1021/acs.joc.9b03294] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This work describes a novel and practical method for the Cu-catalyzed C(sp3)-C(sp2) cross-coupling of alkylsilyl peroxides with arylboronic acids. The reductive cleavage of the O-O bond of alkylsilyl peroxides and the desired cross-coupling reactions to afford alkyl-substituted aromatic rings proceed smoothly at room temperature promoted by simple Cu-based catalysts and do not require activation by visible light. The results of mechanistic investigations support a radical-mediated C(sp3)-C(sp2) bond formation via β-scission of the alkoxy radicals generated from the alkylsilyl peroxides.
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Affiliation(s)
- Shunya Sakurai
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Saori Tsuzuki
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Ryu Sakamoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.,Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
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47
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Fang XX, Wang PF, Yi W, Chen W, Lou SC, Liu GQ. Visible-Light-Mediated Oxidative Coupling of Vinylarenes with Bromocarboxylates Leading to γ-Ketoesters. J Org Chem 2019; 84:15677-15684. [DOI: 10.1021/acs.joc.9b02310] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xing-Xiao Fang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Peng-Fei Wang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Wei Yi
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Wei Chen
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Sheng-Chun Lou
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
| | - Gong-Qing Liu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People’s Republic of China
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48
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Mills LR, Zhou C, Fung E, Rousseaux SAL. Ni-Catalyzed β-Alkylation of Cyclopropanol-Derived Homoenolates. Org Lett 2019; 21:8805-8809. [DOI: 10.1021/acs.orglett.9b03435] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. Reginald Mills
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Cuihan Zhou
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Emily Fung
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Sophie A. L. Rousseaux
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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49
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Elek GZ, Koppel K, Zubrytski DM, Konrad N, Järving I, Lopp M, Kananovich DG. Divergent Access to Histone Deacetylase Inhibitory Cyclopeptides via a Late-Stage Cyclopropane Ring Cleavage Strategy. Short Synthesis of Chlamydocin. Org Lett 2019; 21:8473-8478. [PMID: 31596600 DOI: 10.1021/acs.orglett.9b03305] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A unified step-economical strategy for accessing histone deacetylase inhibitory peptides is proposed, based on the late-stage installation of multiple zinc-binding functionalities via the cleavage of the strained cyclopropane ring in the common pluripotent cyclopropanol precursor. The efficacy of the proposed diversity-oriented approach has been validated by short stereoselective synthesis of natural product chlamydocin, containing a challenging-to-install fragment of (2S,9S)-2-amino-8-oxo-9,10-epoxydecanoic acid (Aoe) and a range of its analogues, derivatives of 2-amino-8-oxodecanoic and 2-aminosuberic acids.
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Affiliation(s)
- Gábor Zoltán Elek
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Kaur Koppel
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Dzmitry M Zubrytski
- Belarusian State University , Department of Organic Chemistry , Leningradskaya 14 , 220050 Minsk , Belarus
| | - Nele Konrad
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Ivar Järving
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Margus Lopp
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Dzmitry G Kananovich
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
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50
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Synthesis of chroman-4-one and indanone derivatives via silver catalyzed radical ring opening/coupling/cyclization cascade. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130490] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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