1
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Frolov AI, Chuchvera YO, Ostapchuk EN, Druzhenko TV, Volochnyuk DM, Ryabukhin SV. Toward a Chemical Constructor: A Lego-Like Approach for Formal α-Alkylation of Cyclic Ketones. J Org Chem 2024. [PMID: 38764429 DOI: 10.1021/acs.joc.3c02628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
A conceptual strategy for a formal α-alkylation of α-methylene ketones was developed. Diverse 1° and 2° alkyl substituents were generated in the α-position of various ketones via synthesis of enaminone (step 1) and treatment with organomagnesium (step 2) with subsequent catalytic hydrogenation (step 3, 1° alkyl) or organocopper reagents (step 4, 2° alkyl). Tolerance toward ester, Boc-protected amine, and α-fluoro-substituted ketone moieties was demonstrated. The suitability of the method for late-stage natural product modification was shown.
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Affiliation(s)
- Andriy I Frolov
- Enamine Limited, 78 Winston Churchill Street, 02094 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, 01601 Kyiv, Ukraine
| | | | - Eugeniy N Ostapchuk
- Enamine Limited, 78 Winston Churchill Street, 02094 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, 01601 Kyiv, Ukraine
| | - Tetiana V Druzhenko
- Enamine Limited, 78 Winston Churchill Street, 02094 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, 01601 Kyiv, Ukraine
| | - Dmytro M Volochnyuk
- Enamine Limited, 78 Winston Churchill Street, 02094 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, 01601 Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Akademik Kuhar Street, 02660 Kyiv, Ukraine
| | - Serhiy V Ryabukhin
- Enamine Limited, 78 Winston Churchill Street, 02094 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, 01601 Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Akademik Kuhar Street, 02660 Kyiv, Ukraine
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2
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Husen S, Jha P, Singh A, Kumar R. Direct Use of Phosphonium Salts for Alkylation of p-Quinols: Formal α-Arylation of Carbonyls via a 5-Membered Betaine-Type Intermediate. Org Lett 2022; 24:6925-6929. [PMID: 36129805 DOI: 10.1021/acs.orglett.2c02638] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unlike phosphonium ylides used extensively for C═C bond formation, herein we disclose the direct use of phosphonium salts for site-selective alkylation to p-quinols via a 5-membered betaine-type intermediate. This strategy provides a novel and general approach for the synthesis of α-(m-aminoaryl) esters, amides and ketones under ambient conditions. The reaction proceeds through in situ generation of P-ylide, alkylation and aromatization. Reaction is highly compatible with diverse functional phosphonium salts and amines.
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Affiliation(s)
- Saddam Husen
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyankar Jha
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Akansha Singh
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ravindra Kumar
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Lyons DJM, Dinh AH, Ton NNH, Crocker RD, Mai BK, Nguyen TV. Ring Contraction of Tropylium Ions into Benzenoid Derivatives. Org Lett 2022; 24:2520-2525. [PMID: 35324211 DOI: 10.1021/acs.orglett.2c00663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a method to convert substituted tropylium ions into benzenoid derivatives.
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Affiliation(s)
- Demelza J M Lyons
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - An H Dinh
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Nhan N H Ton
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Reece D Crocker
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Binh Khanh Mai
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Thanh Vinh Nguyen
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
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4
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Kumar R, Nguyen QH, Um TW, Shin S. Recent Progress in Enolonium Chemistry under Metal-Free Conditions. CHEM REC 2021; 22:e202100172. [PMID: 34418282 DOI: 10.1002/tcr.202100172] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/08/2021] [Accepted: 08/11/2021] [Indexed: 11/09/2022]
Abstract
Umpolung approach through inversion of the polarity of conventional enolates, has opened up an unprecedented opportunity in the cross-coupling via alkylation. The enolonium equivalents can be accessed either by hypervalent iodine reagents, activation/oxidation of amides, or the oxidation of alkynes. Under umpolung conditions, highly basic conditions required for classical enolate chemistry can be avoided, and they can couple with unmodified nucleophiles such as heteroatom donors and electron-rich arenes.
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Affiliation(s)
- Ravi Kumar
- Department of Chemistry, Center for New Directions in Organic Chemistry (CNOS), and Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Quynh H Nguyen
- Department of Chemistry, Center for New Directions in Organic Chemistry (CNOS), and Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Tae-Woong Um
- Department of Chemistry, Center for New Directions in Organic Chemistry (CNOS), and Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Seunghoon Shin
- Department of Chemistry, Center for New Directions in Organic Chemistry (CNOS), and Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
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5
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Miyata O. A Story of a Female Student Fascinated by Chemical Research. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.700] [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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6
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Nie Y, Wang Z, Feng Z, Dong B, Bai Y, Leng Y, Wu J. Na
2
Eosin Y Catalyzed Alkylation of Enol Acetates by Radical Decarboxylation of N‐Hydroxyphthalimide Esters. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yu Nie
- College of Chemistry and Institute of Green Catalysis Zhengzhou University 450001 Zhengzhou Henan P. R. China
| | - Zechao Wang
- Division of Molecular Catalysis & Synthesis, Henan Institute of Advanced Technology Zhengzhou University 450001 Zhengzhou Henan P. R. China
| | - Zengqiang Feng
- College of Chemistry and Institute of Green Catalysis Zhengzhou University 450001 Zhengzhou Henan P. R. China
| | - Bingbing Dong
- College of Chemistry and Institute of Green Catalysis Zhengzhou University 450001 Zhengzhou Henan P. R. China
| | - Yuyang Bai
- College of Chemistry and Institute of Green Catalysis Zhengzhou University 450001 Zhengzhou Henan P. R. China
| | - Yuting Leng
- College of Chemistry and Institute of Green Catalysis Zhengzhou University 450001 Zhengzhou Henan P. R. China
| | - Junliang Wu
- College of Chemistry and Institute of Green Catalysis Zhengzhou University 450001 Zhengzhou Henan P. R. China
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7
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Martins B, Kaiser D, Bauer A, Tiefenbrunner I, Maulide N. Formal Enone α-Arylation via I(III)-Mediated Aryl Migration/Elimination. Org Lett 2021; 23:2094-2098. [PMID: 33635665 PMCID: PMC7985840 DOI: 10.1021/acs.orglett.1c00251] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Indexed: 12/02/2022]
Abstract
A formal enone α-arylation is described. This metal-free transformation relies on the I(III)-mediated skeletal reorganization of silyl enol ethers and features mild conditions, good yields, and high stereoselectivities for β-substituted enones.
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Affiliation(s)
| | | | - Adriano Bauer
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090 Vienna, Austria
| | - Irmgard Tiefenbrunner
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090 Vienna, Austria
| | - Nuno Maulide
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090 Vienna, Austria
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8
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Matsumoto S, Marumoto H, Akazome M, Otani Y, Kaiho T. Chemoselective Reduction of α, β-Unsaturated Carbonyl and Carboxylic Compounds by Hydrogen Iodide. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shoji Matsumoto
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Soft Molecular Activation Research Center (SMARC), Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hayato Marumoto
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Motohiro Akazome
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yasuhiko Otani
- GODO SHIGEN CO., LTD., 1365 Nanaido, Chosei-mura, Chosei-gun, Chiba 299-4333, Japan
| | - Tatsuo Kaiho
- GODO SHIGEN CO., LTD., 1365 Nanaido, Chosei-mura, Chosei-gun, Chiba 299-4333, Japan
- Chiba Iodine Resource Innovation Center (CIRIC), Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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9
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Vitale P, Cicco L, Perna FM, Capriati V. Introducing deep eutectic solvents in enolate chemistry: synthesis of 1-arylpropan-2-ones under aerobic conditions. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00297j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An environmentally friendly procedure for the generation of enolates from 1-arylpropan-2-ones, followed by functionalization with electrophiles and (hetero)aryl halides in deep eutectic solvents under aerobic conditions, is disclosed.
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Affiliation(s)
- Paola Vitale
- Dipartimento di Farmacia–Scienze del farmaco, Università di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S, Via E. Orabona 4, I-70125, Bari, Italy
| | - Luciana Cicco
- Dipartimento di Farmacia–Scienze del farmaco, Università di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S, Via E. Orabona 4, I-70125, Bari, Italy
| | - Filippo Maria Perna
- Dipartimento di Farmacia–Scienze del farmaco, Università di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S, Via E. Orabona 4, I-70125, Bari, Italy
| | - Vito Capriati
- Dipartimento di Farmacia–Scienze del farmaco, Università di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S, Via E. Orabona 4, I-70125, Bari, Italy
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10
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Kiefl GM, Gulder T. α-Functionalization of Ketones via a Nitrogen Directed Oxidative Umpolung. J Am Chem Soc 2020; 142:20577-20582. [DOI: 10.1021/jacs.0c10700] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Gabriel M. Kiefl
- Department of Chemistry, Technical University Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Tanja Gulder
- Department of Chemistry, Technical University Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
- Institute of Organic Chemistry, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany
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11
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Mochimatsu T, Aota Y, Kano T, Maruoka K. CuCl
2
‐Mediated Oxidative Intramolecular α‐Arylation of Ketones with Phenolic Nucleophiles via Oxy‐Allyl Cation Intermediates. Chem Asian J 2020; 15:3816-3819. [DOI: 10.1002/asia.202001032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/01/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Takuto Mochimatsu
- Department of Chemistry Graduate School of Science Kyoto University Sakyo, Kyoto 606-8502 Japan
| | - Yusuke Aota
- Department of Chemistry Graduate School of Science Kyoto University Sakyo, Kyoto 606-8502 Japan
| | - Taichi Kano
- 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 P. R. China
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12
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Mathi GR, Kweon B, Moon Y, Jeong Y, Hong S. Regioselective C−H Functionalization of Heteroarene
N
‐Oxides Enabled by a Traceless Nucleophile. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010597] [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)
- Gangadhar Rao Mathi
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Byeongseok Kweon
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Yonghoon Moon
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Yujin Jeong
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
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13
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Mathi GR, Kweon B, Moon Y, Jeong Y, Hong S. Regioselective C-H Functionalization of Heteroarene N-Oxides Enabled by a Traceless Nucleophile. Angew Chem Int Ed Engl 2020; 59:22675-22683. [PMID: 32888227 DOI: 10.1002/anie.202010597] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/24/2020] [Indexed: 11/05/2022]
Abstract
Although N-alkenoxyheteroarenium salts have been widely used as umpoled synthons with nucleophilic (hetero)arenes, the use of electron-poor heteroarenes has remained unexplored. To overcome the inherent electron deficiency of quinolinium salts, a traceless nucleophile-triggered strategy was designed, wherein the quinolinium segment is converted into a dearomatized intermediate, thereby allowing simultaneous C8-functionalization of quinolines at room temperature. Experimental and computational studies support the traceless operation of a nucleophile, which enables the previously inaccessible transformation of N-alkenoxyheteroarenium salts. Remarkably, the generality of this strategy has been further demonstrated by broad applications in the regioselective C-H functionalization of other electron-deficient heteroarenes such as phenanthridine, isoquinoline, and pyridine N-oxides, offering a practical tool for the late-stage functionalization of complex biorelevant molecules.
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Affiliation(s)
- Gangadhar Rao Mathi
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Byeongseok Kweon
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Yonghoon Moon
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Yujin Jeong
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
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14
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Bauer A, Di Mauro G, Li J, Maulide N. An α-Cyclopropanation of Carbonyl Derivatives by Oxidative Umpolung. Angew Chem Int Ed Engl 2020; 59:18208-18212. [PMID: 32808419 PMCID: PMC7589340 DOI: 10.1002/anie.202007439] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/11/2020] [Indexed: 11/10/2022]
Abstract
The reactivity of iodine(III) reagents towards nucleophiles is often associated with umpolung and cationic mechanisms. Herein, we report a general process converting a range of ketone derivatives into α-cyclopropanated ketones by oxidative umpolung. Mechanistic investigation and careful characterization of side products revealed that the reaction follows an unexpected pathway and suggests the intermediacy of non-classical carbocations.
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Affiliation(s)
- Adriano Bauer
- Institute of Organic ChemistryUniversity of ViennaWähringer Strasse 381090ViennaAustria
| | - Giovanni Di Mauro
- Institute of Organic ChemistryUniversity of ViennaWähringer Strasse 381090ViennaAustria
| | - Jing Li
- Department of ChemistryTohoku UniversityAoba-ku980-8578SendaiJapan
| | - Nuno Maulide
- Institute of Organic ChemistryUniversity of ViennaWähringer Strasse 381090ViennaAustria
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15
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Zawodny W, Teskey CJ, Mishevska M, Völkl M, Maryasin B, González L, Maulide N. α‐Funktionalisierung von Ketonen durch metallfreie elektrophile Aktivierung. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Wojciech Zawodny
- Institut für organische Chemie Universität Wien Währinger Straße 38 1090 Wien Österreich
| | - Christopher J. Teskey
- Institut für organische Chemie Universität Wien Währinger Straße 38 1090 Wien Österreich
| | - Magdalena Mishevska
- Institut für organische Chemie Universität Wien Währinger Straße 38 1090 Wien Österreich
| | - Martin Völkl
- Institut für organische Chemie Universität Wien Währinger Straße 38 1090 Wien Österreich
| | - Boris Maryasin
- Institut für organische Chemie Universität Wien Währinger Straße 38 1090 Wien Österreich
- Institut für theoretische Chemie Universität Wien Währinger Straße 17 1090 Wien Österreich
| | - Leticia González
- Institut für theoretische Chemie Universität Wien Währinger Straße 17 1090 Wien Österreich
| | - Nuno Maulide
- Institut für organische Chemie Universität Wien Währinger Straße 38 1090 Wien Österreich
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16
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Zawodny W, Teskey CJ, Mishevska M, Völkl M, Maryasin B, González L, Maulide N. α-Functionalisation of Ketones Through Metal-Free Electrophilic Activation. Angew Chem Int Ed Engl 2020; 59:20935-20939. [PMID: 32914929 PMCID: PMC7693173 DOI: 10.1002/anie.202006398] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Indexed: 01/08/2023]
Abstract
Triflic anhydride mediated activation of acetophenones leads to highly electrophilic intermediates that can undergo a variety of transformations when treated with nucleophiles. This electrophilic ketone activation gives access to α‐arylated and α‐oxyaminated acetophenones under metal‐free conditions in moderate to excellent yields and enables extension to the synthesis of arylated morpholines via generation of vinylsulfonium salts. Computational investigations confirmed the transient existence of intermediates derived from vinyl triflates and the role of the oxygen atoms at the para position of aromatic ring in facilitating their stabilisation.
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Affiliation(s)
- Wojciech Zawodny
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Christopher J Teskey
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Magdalena Mishevska
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Martin Völkl
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Boris Maryasin
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria.,Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria
| | - Leticia González
- Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
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17
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Bauer A, Di Mauro G, Li J, Maulide N. An α‐Cyclopropanation of Carbonyl Derivatives by Oxidative Umpolung. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007439] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Adriano Bauer
- Institute of Organic Chemistry University of Vienna Währinger Strasse 38 1090 Vienna Austria
| | - Giovanni Di Mauro
- Institute of Organic Chemistry University of Vienna Währinger Strasse 38 1090 Vienna Austria
| | - Jing Li
- Department of Chemistry Tohoku University Aoba-ku 980-8578 Sendai Japan
| | - Nuno Maulide
- Institute of Organic Chemistry University of Vienna Währinger Strasse 38 1090 Vienna Austria
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18
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Im H, Choi W, Hong S. Photocatalytic Vicinal Aminopyridylation of Methyl Ketones by a Double Umpolung Strategy. Angew Chem Int Ed Engl 2020; 59:17511-17516. [DOI: 10.1002/anie.202008435] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Honggu Im
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Wonjun Choi
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Sungwoo Hong
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
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19
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Im H, Choi W, Hong S. Photocatalytic Vicinal Aminopyridylation of Methyl Ketones by a Double Umpolung Strategy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008435] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Honggu Im
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Wonjun Choi
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Sungwoo Hong
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
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20
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Rong Z, Hu W, Dai N, Qian G. A Hg(OTf)2-Catalyzed Enolate Umpolung Reaction Enables the Synthesis of Coumaran-3-ones and Indolin-3-ones. Org Lett 2020; 22:3286-3290. [DOI: 10.1021/acs.orglett.0c01096] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhouting Rong
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, People’s Republic of China
| | - Weican Hu
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, People’s Republic of China
| | - Ning Dai
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, People’s Republic of China
| | - Guoying Qian
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, People’s Republic of China
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21
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Aota Y, Doko Y, Kano T, Maruoka K. Brønsted Acid-Catalyzed Intramolecular α-Arylation of Ketones with Phenolic Nucleophiles via Oxy-Allyl Cation Intermediates. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000169] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yusuke Aota
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Yuki Doko
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Taichi Kano
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Keiji Maruoka
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
- Graduate School of Pharmaceutical Sciences; Kyoto University; Sakyo 606-8501 Kyoto Japan
- School of Chemical Engineering and Light Industry; Guangdong University of Technology; 510006 Guangzhou China
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22
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More AA, Santra SK, Szpilman AM. Azido-Enolonium Species in C-C and C-N Bond-Forming Coupling Reactions. Org Lett 2020; 22:768-771. [PMID: 31916772 DOI: 10.1021/acs.orglett.9b03824] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Vinyl azides react with boron trifluoride activated Koser's hypervalent iodine reagent to afford azido-enolonium species. These previously unknown azido-enolonium species react efficiently with aromatic compounds, allyltrimethylsilane, and azoles under mild conditions, with no need for a transition-metal catalyst, forming C-C and C-N bonds to give a variety of α-functionalized ketones. The intermediacy of the proposed azido-enolonium species is supported by spectroscopic studies.
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Affiliation(s)
- Atul A More
- Department of Chemical Sciences, Faculty of Natural Sciences , Ariel University , Ariel 4070000 , Israel
| | - Sourav K Santra
- Department of Chemical Sciences, Faculty of Natural Sciences , Ariel University , Ariel 4070000 , Israel
| | - Alex M Szpilman
- Department of Chemical Sciences, Faculty of Natural Sciences , Ariel University , Ariel 4070000 , Israel
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23
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Huang WH, Huang GB, Zhu WR, Weng J, Lu G. Transition metal-free synthesis of α-aryl ketones via oxyallyl cation capture with arylboronic acids. Org Chem Front 2020. [DOI: 10.1039/d0qo00447b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
α-Arylated ketones were accessed via oxyallyl cation capture with arylboronic acids in good yields with broad substrate tolerance.
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Affiliation(s)
- Wei-Hua Huang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- P. R. China
| | - Gong-Bin Huang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- P. R. China
| | - Wen-Run Zhu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- P. R. China
| | - Jiang Weng
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- P. R. China
| | - Gui Lu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- P. R. China
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24
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Sanz-Marco A, Martinez-Erro S, Pauze M, Gómez-Bengoa E, Martín-Matute B. An umpolung strategy to react catalytic enols with nucleophiles. Nat Commun 2019; 10:5244. [PMID: 31748504 PMCID: PMC6868166 DOI: 10.1038/s41467-019-13175-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/24/2019] [Indexed: 01/07/2023] Open
Abstract
The selective synthesis of α-functionalized ketones with two similar enolizable positions can be accomplished using allylic alcohols and iridium(III) catalysts. A formal 1,3-hydrogen shift on allylic alcohols generates catalytic iridium-enolates in a stereospecific manner, which are able to react with electrophiles to yield α-functionalized ketones as single constitutional isomers. However, the employment of nucleophiles to react with the nucleophilic catalytic enolates in this chemistry is still unknown. Herein, we report an umpolung strategy for the selective synthesis of α-alkoxy carbonyl compounds by the reaction of iridium enolates and alcohols promoted by an iodine(III) reagent. Moreover, the protocol also works in an intramolecular fashion to synthesize 3(2H)-furanones from γ-keto allylic alcohols. Experimental and computational investigations have been carried out, and mechanisms are proposed for both the inter- and intramolecular reactions, explaining the key role of the iodine(III) reagent in this umpolung approach. Nucleophiles cannot be directly reacted with enolates due to polarity mismatching. Here, the authors developed an umpolung strategy for the selective synthesis of α-alkoxy carbonyl compounds by reaction of iridium enolates with nucleophilic alcohols promoted by an iodine(III) reagent.
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Affiliation(s)
- Amparo Sanz-Marco
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Samuel Martinez-Erro
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Martin Pauze
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden.,Departamento de Química Orgánica I, Universidad del País Vasco/UPV-EHU, Manuel de Lardizabal 3, Donostia - San Sebastián, 20018, Spain
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I, Universidad del País Vasco/UPV-EHU, Manuel de Lardizabal 3, Donostia - San Sebastián, 20018, Spain
| | - Belén Martín-Matute
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden.
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25
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Pogaku N, Krishna PR, Prapurna YL. Iodine‐Mediated Nucleophilic Direct Oxidative α‐Acetoxylation and α‐Alkoxylation of Ketones. ChemistrySelect 2019. [DOI: 10.1002/slct.201903028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Naresh Pogaku
- D-207Discovery LaboratoryOrganic Synthesis and Process Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad- 500 007 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110025 India
| | - Palakodety Radha Krishna
- D-207Discovery LaboratoryOrganic Synthesis and Process Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad- 500 007 India
| | - Y. Lakshmi Prapurna
- D-207Discovery LaboratoryOrganic Synthesis and Process Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad- 500 007 India
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26
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Affiliation(s)
- Alexey Yu. Sukhorukov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prospect 47 Moscow Russia 119991
- D. Mendeleev University of Chemical Technology of Russia Miusskaya sq. 9 Moscow Russia 125047
- Plekhanov Russian University of Economics Stremyanny per. 36 Moscow Russia 117997
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27
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Li J, Bauer A, Di Mauro G, Maulide N. α-Arylation of Carbonyl Compounds through Oxidative C-C Bond Activation. Angew Chem Int Ed Engl 2019; 58:9816-9819. [PMID: 31112360 PMCID: PMC6771532 DOI: 10.1002/anie.201904899] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Indexed: 01/05/2023]
Abstract
A synthetically useful approach for the direct α-arylation of carbonyl compounds through a novel oxidative C-C bond activation is reported. This mechanistically unusual process relies on a 1,2-aryl shift and results in all-carbon quaternary centers. The transformation displays broad functional-group tolerance and can in principle also be applied as an asymmetric variant.
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Affiliation(s)
- Jing Li
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
| | - Adriano Bauer
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
| | - Giovanni Di Mauro
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
| | - Nuno Maulide
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
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28
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Li J, Bauer A, Di Mauro G, Maulide N. α‐Arylierung von Carbonylverbindungen mittels oxidativer C‐C‐Bindungsaktivierung. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904899] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jing Li
- Universität WienInstitut für organische Chemie Währinger Strasse 38 1090 Wien Österreich
| | - Adriano Bauer
- Universität WienInstitut für organische Chemie Währinger Strasse 38 1090 Wien Österreich
| | - Giovanni Di Mauro
- Universität WienInstitut für organische Chemie Währinger Strasse 38 1090 Wien Österreich
| | - Nuno Maulide
- Universität WienInstitut für organische Chemie Währinger Strasse 38 1090 Wien Österreich
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29
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Ciccolini C, De Crescentini L, Mantellini F, Santeusanio S, Favi G. Zn(II)-Catalyzed Addition of Aromatic/Heteroaromatic C(sp 2)-H to Azoalkenes: A Polarity-Reversed Arylation of Carbonyl Compounds. Org Lett 2019; 21:4388-4391. [PMID: 31117718 DOI: 10.1021/acs.orglett.9b01628] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An umpolung α-(hetero)arylation strategy that involves the Michael-type reaction between electron-rich (hetero)aromatic substrates and azoalkenes is developed. The reaction proceeds under very mild conditions at room temperature and in the presence of inexpensive, nontoxic ZnCl2 catalyst to provide access to otherwise inaccessible hydrazone structures. Subsequent hydrolysis of these latter to ketones as well as other valuable synthetic transformations to a variety of heterocyclic scaffolds demonstrate the usefulness of this protocol.
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Affiliation(s)
- Cecilia Ciccolini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies , University of Urbino "Carlo Bo" , Via I Maggetti 24 , 61029 Urbino , Italy
| | - Lucia De Crescentini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies , University of Urbino "Carlo Bo" , Via I Maggetti 24 , 61029 Urbino , Italy
| | - Fabio Mantellini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies , University of Urbino "Carlo Bo" , Via I Maggetti 24 , 61029 Urbino , Italy
| | - Stefania Santeusanio
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies , University of Urbino "Carlo Bo" , Via I Maggetti 24 , 61029 Urbino , Italy
| | - Gianfranco Favi
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies , University of Urbino "Carlo Bo" , Via I Maggetti 24 , 61029 Urbino , Italy
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30
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Affiliation(s)
- Dilip V. Patil
- Department of Chemistry; Center for New Directions in Organic Synthesis (CNOS); Institution for Natural Sciences; Hanyang University; 222 Wangsimni-ro Seongdong-gu Seoul Korea 14763
| | - Seunghoon Shin
- Department of Chemistry; Center for New Directions in Organic Synthesis (CNOS); Institution for Natural Sciences; Hanyang University; 222 Wangsimni-ro Seongdong-gu Seoul Korea 14763
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31
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Zhai RL, Xue YS, Liang T, Mi JJ, Xu Z. Regioselective Arene and Heteroarene Functionalization: N-Alkenoxypyridinium Salts as Electrophilic Alkylating Agents for the Synthesis of α-Aryl/α-Heteroaryl Ketones. J Org Chem 2018; 83:10051-10059. [DOI: 10.1021/acs.joc.8b01388] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rong L. Zhai
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, People’s Republic of China
| | - Yun S. Xue
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, People’s Republic of China
| | - Ting Liang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, People’s Republic of China
| | - Jia J. Mi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, People’s Republic of China
| | - Zhou Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, People’s Republic of China
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32
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Ueda M, Takeda N, Miyata O. Synthesis of Heterocycles by Utilizing Characteristic Features of Imines and Amides bearing the Alkoxy Group. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.584] [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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33
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Li Y, Xie F, Liu Y, Yang X, Li X. Regio- and Diastereoselective Access to Fused Isoxazolidines via Ru(II)-Catalyzed C–H Activation of Nitrones and Coupling with Perfluoroalkylolefins. Org Lett 2018; 20:437-440. [DOI: 10.1021/acs.orglett.7b03775] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yunyun Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fang Xie
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yuan Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xifa Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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34
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Takeda N, Furuishi M, Nishijima Y, Futaki E, Ueda M, Shinada T, Miyata O. Chiral isoxazolidine-mediated stereoselective umpolung α-phenylation of methyl ketones. Org Biomol Chem 2018; 16:8940-8943. [DOI: 10.1039/c8ob02480d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Asymmetric nucleophilic phenylation of N-alkoxyenamine with triphenylaluminium is achieved for the formation of enantioenriched α-phenyl ketones through a one-pot process.
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Affiliation(s)
| | | | | | - Erika Futaki
- Kobe Pharmaceutical University
- Kobe 658-8558
- Japan
| | | | - Tetsuro Shinada
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University
- Kobe 658-8558
- Japan
- Graduate School of Science
- Osaka City University
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35
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Pandey G, Tiwari SK, Budakoti A, Sahani PK. Transition-metal-free photoredox intermolecular α-arylation of ketones. Org Chem Front 2018. [DOI: 10.1039/c8qo00510a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
α-Arylation of ketones with electron rich arenes via sp2(C)–H has been achieved by the reaction of α-phenylselanylketones using organic photoredox catalysis.
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Affiliation(s)
- Ganesh Pandey
- Molecular Synthesis and Drug Discovery Laboratory
- Centre of Bio-Medical Research (CBMR)
- Sanjay Gandhi Postgraduate Institute of Medical Science Campus
- Lucknow-226014
- India
| | - Sandip Kumar Tiwari
- Molecular Synthesis and Drug Discovery Laboratory
- Centre of Bio-Medical Research (CBMR)
- Sanjay Gandhi Postgraduate Institute of Medical Science Campus
- Lucknow-226014
- India
| | - Asha Budakoti
- Molecular Synthesis and Drug Discovery Laboratory
- Centre of Bio-Medical Research (CBMR)
- Sanjay Gandhi Postgraduate Institute of Medical Science Campus
- Lucknow-226014
- India
| | - Pramod Kumar Sahani
- Molecular Synthesis and Drug Discovery Laboratory
- Centre of Bio-Medical Research (CBMR)
- Sanjay Gandhi Postgraduate Institute of Medical Science Campus
- Lucknow-226014
- India
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36
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Takeda N, Futaki E, Kobori Y, Ueda M, Miyata O. Nucleophilic Arylation of N
,O
-Ketene Acetals with Triaryl Aluminum Reagents: Access to α-Aryl Amides through an Umpolung Process. Angew Chem Int Ed Engl 2017; 56:16342-16346. [DOI: 10.1002/anie.201708665] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Norihiko Takeda
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
| | - Erika Futaki
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
| | - Yukiko Kobori
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
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37
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Takeda N, Futaki E, Kobori Y, Ueda M, Miyata O. Nucleophilic Arylation of N
,O
-Ketene Acetals with Triaryl Aluminum Reagents: Access to α-Aryl Amides through an Umpolung Process. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708665] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Norihiko Takeda
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
| | - Erika Futaki
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
| | - Yukiko Kobori
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University; Motoyamakita; Higashinada Kobe 658-8558 Japan
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38
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Maksymenko S, Parida KN, Pathe GK, More AA, Lipisa YB, Szpilman AM. Transition-Metal-Free Intermolecular α-Arylation of Ketones via Enolonium Species. Org Lett 2017; 19:6312-6315. [DOI: 10.1021/acs.orglett.7b03064] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shimon Maksymenko
- Department of Chemical Sciences, Ariel University, 40700 Ariel, Israel
| | - Keshaba N. Parida
- Department of Chemical Sciences, Ariel University, 40700 Ariel, Israel
| | - Gulab K. Pathe
- Department of Chemical Sciences, Ariel University, 40700 Ariel, Israel
| | - Atul A. More
- Department of Chemical Sciences, Ariel University, 40700 Ariel, Israel
| | - Yuriy B. Lipisa
- Department of Chemical Sciences, Ariel University, 40700 Ariel, Israel
| | - Alex M. Szpilman
- Department of Chemical Sciences, Ariel University, 40700 Ariel, Israel
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39
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Kaiser D, Teskey CJ, Adler P, Maulide N. Chemoselective Intermolecular Cross-Enolate-Type Coupling of Amides. J Am Chem Soc 2017; 139:16040-16043. [PMID: 29099184 PMCID: PMC5691317 DOI: 10.1021/jacs.7b08813] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
![]()
A new approach for
the synthesis of 1,4-dicarbonyl compounds is
reported. Chemoselective activation of amide carbonyl functionality
and subsequent umpolung viaN-oxide
addition generates an electrophilic enolonium species that can be
coupled with a wide range of nucleophilic enolates. The method conveys
broad functional group tolerance on both components, does not suffer
from formation of homocoupling byproducts and avoids the use of transition
metal catalysts.
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Affiliation(s)
- Daniel Kaiser
- Institute of Organic Chemistry, University of Vienna , Währinger Strasse 1090, Vienna, Austria
| | - Christopher J Teskey
- Institute of Organic Chemistry, University of Vienna , Währinger Strasse 1090, Vienna, Austria
| | - Pauline Adler
- Institute of Organic Chemistry, University of Vienna , Währinger Strasse 1090, Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna , Währinger Strasse 1090, Vienna, Austria
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40
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Stopka T, Niggemann M, Maulide N. α-Carbonyl Cations in Sulfoxide-Driven Oxidative Cyclizations. Angew Chem Int Ed Engl 2017; 56:13270-13274. [PMID: 28834106 DOI: 10.1002/anie.201705964] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Indexed: 12/23/2022]
Abstract
The selective, metal-free generation of α-carbonyl cations from simple internal alkynes was accomplished by the addition of a sulfoxide to a densely substituted vinyl cation. The high reactivity of the α-carbonyl cations was found to efficiently induce hydrogen and even carbon shift reactions with unusual selecivities. Complex compounds with highly congested tertiary and all-carbon-substituted quartenary carbon centers can thus be accessed in a single step from simple precursors. Mechanistic analysis strongly supports the intermediacy of the title compounds and provides a simple predictive scheme for the migratory aptitude of different substituents.
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Affiliation(s)
- Tobias Stopka
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Meike Niggemann
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
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41
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Stopka T, Niggemann M, Maulide N. α-Carbonylkationen in Sulfoxid-vermittelten oxidativen Cyclisierungen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705964] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tobias Stopka
- Institut für Organische Chemie; RWTH Aachen Universität; Landoltweg 1 52074 Aachen Deutschland
| | - Meike Niggemann
- Institut für Organische Chemie; RWTH Aachen Universität; Landoltweg 1 52074 Aachen Deutschland
| | - Nuno Maulide
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
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42
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Xu Z, Zhai R, Liang T, Zhang L. Efficient One-Pot Multifunctionalization of Alkynes en Route to α-Alkoxyketones, α-Thioketones, and α-Thio Thioketals by using an Umpolung Strategy. Chemistry 2017; 23:14133-14137. [DOI: 10.1002/chem.201703087] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Zhou Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Xuzhou Medical University; Tongshan Road 209 Xuzhou 221004 P.R. China
| | - Rongliang Zhai
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Xuzhou Medical University; Tongshan Road 209 Xuzhou 221004 P.R. China
| | - Ting Liang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Xuzhou Medical University; Tongshan Road 209 Xuzhou 221004 P.R. China
| | - Liming Zhang
- Department of Chemistry & Biochemistry; University of California; Santa Barbara California 93106 USA
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Kaiser D, de la Torre A, Shaaban S, Maulide N. Metal-Free Formal Oxidative C-C Coupling by In Situ Generation of an Enolonium Species. Angew Chem Int Ed Engl 2017; 56:5921-5925. [PMID: 28429392 DOI: 10.1002/anie.201701538] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 03/11/2017] [Indexed: 01/27/2023]
Abstract
Much contemporary organic synthesis relies on transformations that are driven by the intrinsic, so-called "natural", polarity of chemical bonds and reactive centers. The design of unconventionally polarized synthons is a highly desirable strategy, as it generally enables unprecedented retrosynthetic disconnections for the synthesis of complex substances. Whereas the umpolung of carbonyl centers is a well-known strategy, polarity reversal at the α-position of a carbonyl group is much rarer. Herein, we report the design of a novel electrophilic enolonium species and its application in efficient and chemoselective, metal-free oxidative C-C coupling.
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Affiliation(s)
- Daniel Kaiser
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Wien, Austria
| | - Aurélien de la Torre
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Wien, Austria
| | - Saad Shaaban
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Wien, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Wien, Austria
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Kaiser D, de la Torre A, Shaaban S, Maulide N. Metallfreie formale oxidative C-C-Kupplung durch In-situ-Erzeugung einer elektrophilen Enoloniumspezies. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701538] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Daniel Kaiser
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| | - Aurélien de la Torre
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| | - Saad Shaaban
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| | - Nuno Maulide
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
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45
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Zhmurov PA, Khoroshutina YA, Novikov RA, Golovanov IS, Sukhorukov AY, Ioffe SL. Divergent Reactivity of In Situ Generated Metal Azides: Reaction with N
,N
-Bis(oxy)enamines as a Case Study. Chemistry 2017; 23:4570-4578. [DOI: 10.1002/chem.201605390] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Petr A. Zhmurov
- Laboratory of Functional Organic Compounds; N. D. Zelinsky Institute of Organic Chemistry; 119991 Leninsky Prospect, 47 Moscow Russia
| | - Yulia A. Khoroshutina
- Laboratory of Functional Organic Compounds; N. D. Zelinsky Institute of Organic Chemistry; 119991 Leninsky Prospect, 47 Moscow Russia
| | - Roman A. Novikov
- Laboratory of Functional Organic Compounds; N. D. Zelinsky Institute of Organic Chemistry; 119991 Leninsky Prospect, 47 Moscow Russia
| | - Ivan S. Golovanov
- Laboratory of Functional Organic Compounds; N. D. Zelinsky Institute of Organic Chemistry; 119991 Leninsky Prospect, 47 Moscow Russia
| | - Alexey Yu. Sukhorukov
- Laboratory of Functional Organic Compounds; N. D. Zelinsky Institute of Organic Chemistry; 119991 Leninsky Prospect, 47 Moscow Russia
| | - Sema L. Ioffe
- Laboratory of Functional Organic Compounds; N. D. Zelinsky Institute of Organic Chemistry; 119991 Leninsky Prospect, 47 Moscow Russia
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46
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Sugita S, Takeda N, Tohnai N, Miyata M, Miyata O, Ueda M. Gold-Catalyzed [3+2]/Retro-[3+2]/[3+2] Cycloaddition Cascade Reaction of N
-Alkoxyazomethine Ylides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611816] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shoichi Sugita
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Norihiko Takeda
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science; Graduate School of Engineering; Osaka University; 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Mikiji Miyata
- The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka, Ibaraki Osaka 567-0047 Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
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47
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Sugita S, Takeda N, Tohnai N, Miyata M, Miyata O, Ueda M. Gold-Catalyzed [3+2]/Retro-[3+2]/[3+2] Cycloaddition Cascade Reaction of N
-Alkoxyazomethine Ylides. Angew Chem Int Ed Engl 2017; 56:2469-2472. [DOI: 10.1002/anie.201611816] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/08/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Shoichi Sugita
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Norihiko Takeda
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science; Graduate School of Engineering; Osaka University; 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Mikiji Miyata
- The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka, Ibaraki Osaka 567-0047 Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
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Berthet M, Cheviet T, Dujardin G, Parrot I, Martinez J. Isoxazolidine: A Privileged Scaffold for Organic and Medicinal Chemistry. Chem Rev 2016; 116:15235-15283. [PMID: 27981833 DOI: 10.1021/acs.chemrev.6b00543] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The isoxazolidine ring represents one of the privileged structures in medicinal chemistry, and there have been an increasing number of studies on isoxazolidine and isoxazolidine-containing compounds. Optimization of the 1,3-dipolar cycloaddition (1,3-DC), original methods including electrophilic or palladium-mediated cyclization of unsaturated hydroxylamine, has been developed to obtain isoxazolidines. Novel reactions involving the isoxazolidine ring have been highlighted to accomplish total synthesis or to obtain bioactive compounds, one of the most significant examples being probably the thermic ring contraction applied to the total synthesis of (±)-Gelsemoxonine. The unique isoxazolidine scaffold also exhibits an impressive potential as a mimic of nucleosides, carbohydrates, PNA, amino acids, and steroid analogs. This review aims to be a comprehensive and general summary of the different isoxazolidine syntheses, their use as starting building blocks for the preparation of natural compounds, and their main biological activities.
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Affiliation(s)
- Mathéo Berthet
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Thomas Cheviet
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Gilles Dujardin
- Institut des Molécules et Matériaux du Mans , IMMM UMR 6283 CNRS, Université du Maine, UFR Sciences et Techniques, Avenue Olivier Messiaen, 72085 Le Mans, France
| | - Isabelle Parrot
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
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Nucleophilic β-alkenylation of N-alkoxyenamines: an umpolung strategy for the preparation of β,γ-unsaturated ketones. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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50
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Sugita S, Ueda M, Doi N, Takeda N, Miyata O. Gold-catalyzed sequential cyclization/rearrangement reaction of O-allyl hydroxamates: atom economical synthesis of 3-hydroxyisoxazoles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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