1
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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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2
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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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3
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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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4
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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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5
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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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6
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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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7
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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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8
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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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9
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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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10
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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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11
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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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12
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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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13
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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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14
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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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15
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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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16
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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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17
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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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18
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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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19
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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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20
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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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21
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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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22
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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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23
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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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24
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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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25
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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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26
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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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27
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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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28
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Naumovich YA, Buckland VE, Sen'ko DA, Nelyubina YV, Khoroshutina YA, Sukhorukov AY, Ioffe SL. Metal-assisted addition of a nitrate anion to bis(oxy)enamines. A general approach to the synthesis of α-nitroxy-oxime derivatives from nitronates. Org Biomol Chem 2016; 14:3963-74. [DOI: 10.1039/c6ob00388e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
α-Nitroxy oxime derivatives have been synthesized by a metal-assisted addition of nitrate anion to bis(oxy)enamines.
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Affiliation(s)
| | | | | | | | | | | | - Sema L. Ioffe
- N.D. Zelinsky Institute of Organic Chemistry
- Moscow
- Russia
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29
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Shneider OS, Pisarevsky E, Fristrup P, Szpilman AM. Oxidative Umpolung α-Alkylation of Ketones. Org Lett 2015; 17:282-5. [DOI: 10.1021/ol503384c] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- O. Svetlana Shneider
- Schulich
Faculty of Chemistry, Technion-Israel Institute of Technology, 3200008, Haifa, Israel
| | - Evgeni Pisarevsky
- Schulich
Faculty of Chemistry, Technion-Israel Institute of Technology, 3200008, Haifa, Israel
| | - Peter Fristrup
- Department
of Chemistry, Technical University of Denmark, DK-2800, Kgs. Lyngby, Denmark
| | - Alex M. Szpilman
- Schulich
Faculty of Chemistry, Technion-Israel Institute of Technology, 3200008, Haifa, Israel
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30
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Mizar P, Wirth T. Flexible Stereoselective Functionalizations of Ketones through Umpolung with Hypervalent Iodine Reagents. Angew Chem Int Ed Engl 2014; 53:5993-7. [DOI: 10.1002/anie.201400405] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 03/18/2014] [Indexed: 12/22/2022]
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31
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Mizar P, Wirth T. Flexible stereoselektive Funktionalisierung von Ketonen durch Umpolung mit hypervalenten Iodreagentien. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400405] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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32
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Takenaka K, Mohanta SC, Sasai H. Palladium Enolate Umpolung: Cyclative Diacetoxylation of Alkynyl Cyclohexadienones Promoted by a Pd/SPRIX Catalyst. Angew Chem Int Ed Engl 2014; 53:4675-9. [DOI: 10.1002/anie.201311172] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 02/21/2014] [Indexed: 11/11/2022]
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33
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Takenaka K, Mohanta SC, Sasai H. Palladium Enolate Umpolung: Cyclative Diacetoxylation of Alkynyl Cyclohexadienones Promoted by a Pd/SPRIX Catalyst. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201311172] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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So SS, Mattson AE. Stereoselective NH Insertion-Arylation Reactions of Nitrodiazoesters. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201300285] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Courant T, Masson G. Photoredox-initiated α-alkylation of imines through a three-component radical/cationic reaction. Chemistry 2011; 18:423-7. [PMID: 22161892 DOI: 10.1002/chem.201103062] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Indexed: 11/06/2022]
Affiliation(s)
- Thibaut Courant
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
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