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Biermann U, Bornscheuer UT, Feussner I, Meier MAR, Metzger JO. Fatty Acids and their Derivatives as Renewable Platform Molecules for the Chemical Industry. Angew Chem Int Ed Engl 2021; 60:20144-20165. [PMID: 33617111 PMCID: PMC8453566 DOI: 10.1002/anie.202100778] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Indexed: 12/13/2022]
Abstract
Oils and fats of vegetable and animal origin remain an important renewable feedstock for the chemical industry. Their industrial use has increased during the last 10 years from 31 to 51 million tonnes annually. Remarkable achievements made in the field of oleochemistry in this timeframe are summarized herein, including the reduction of fatty esters to ethers, the selective oxidation and oxidative cleavage of C-C double bonds, the synthesis of alkyl-branched fatty compounds, the isomerizing hydroformylation and alkoxycarbonylation, and olefin metathesis. The use of oleochemicals for the synthesis of a great variety of polymeric materials has increased tremendously, too. In addition to lipases and phospholipases, other enzymes have found their way into biocatalytic oleochemistry. Important achievements have also generated new oil qualities in existing crop plants or by using microorganisms optimized by metabolic engineering.
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Affiliation(s)
- Ursula Biermann
- Institute of ChemistryUniversity of Oldenburg26111OldenburgGermany
- abiosuse.V.Bloherfelder Straße 23926129OldenburgGermany
| | - Uwe T. Bornscheuer
- Institute of BiochemistryDept. of Biotechnology & Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Strasse 417487GreifswaldGermany
| | - Ivo Feussner
- University of GoettingenAlbrecht-von-Haller Institute for Plant SciencesInternational Center for Advanced Studies of Energy Conversion (ICASEC) and Goettingen Center of Molecular Biosciences (GZMB)Dept. of Plant BiochemistryJustus-von-Liebig-Weg 1137077GoettingenGermany
| | - Michael A. R. Meier
- Laboratory of Applied ChemistryInstitute of Organic Chemistry (IOC)Karlsruhe Institute of Technology (KIT)Straße am Forum 776131KarlsruheGermany
- Laboratory of Applied ChemistryInstitute of Biological and Chemical Systems—Functional Molecular Systems (IBCS-FMS)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Jürgen O. Metzger
- Institute of ChemistryUniversity of Oldenburg26111OldenburgGermany
- abiosuse.V.Bloherfelder Straße 23926129OldenburgGermany
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2
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Biermann U, Bornscheuer UT, Feussner I, Meier MAR, Metzger JO. Fettsäuren und Fettsäurederivate als nachwachsende Plattformmoleküle für die chemische Industrie. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ursula Biermann
- Institut für Chemie Universität Oldenburg 26111 Oldenburg Deutschland
- abiosuse.V. Bloherfelder Straße 239 26129 Oldenburg Deutschland
| | - Uwe T. Bornscheuer
- Institut für Biochemie Abt. Biotechnologie & Enzymkatalyse Universität Greifswald Felix-Hausdorff-Straße 4 17487 Greifswald Deutschland
| | - Ivo Feussner
- Universität Göttingen Albrecht-von-Haller Institut für Pflanzenwissenschaften International Center for Advanced Studies of Energy Conversion (ICASEC) und Göttinger Zentrum für Molekulare Biowissenschaften (GZMB) Abt. für die Biochemie der Pflanze Justus-von-Liebig-Weg 11 37077 Göttingen Deutschland
| | - Michael A. R. Meier
- Labor für Angewandte Chemie Institut für Organische Chemie (IOC) Karlsruher Institut für Technology (KIT) Straße am Forum 7 76131 Karlsruhe Deutschland
- Labor für Angewandte Chemie Institut für biologische und chemische Systeme –, Funktionale Molekülsysteme (IBCS-FMS) Karlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Jürgen O. Metzger
- Institut für Chemie Universität Oldenburg 26111 Oldenburg Deutschland
- abiosuse.V. Bloherfelder Straße 239 26129 Oldenburg Deutschland
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3
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Gao J, Ma R, Feng L, Liu Y, Jackstell R, Jagadeesh RV, Beller M. Ambient Hydrogenation and Deuteration of Alkenes Using a Nanostructured Ni‐Core–Shell Catalyst. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jie Gao
- Leibniz Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Rui Ma
- Leibniz Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Lu Feng
- Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics Chinese Academy of Science 457 Zhongshan Road 116023 Dalian China
| | - Yuefeng Liu
- Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics Chinese Academy of Science 457 Zhongshan Road 116023 Dalian China
| | - Ralf Jackstell
- Leibniz Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | | | - Matthias Beller
- Leibniz Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a 18059 Rostock Germany
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Gao J, Ma R, Feng L, Liu Y, Jackstell R, Jagadeesh RV, Beller M. Ambient Hydrogenation and Deuteration of Alkenes Using a Nanostructured Ni-Core-Shell Catalyst. Angew Chem Int Ed Engl 2021; 60:18591-18598. [PMID: 34076934 PMCID: PMC8453733 DOI: 10.1002/anie.202105492] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Indexed: 11/08/2022]
Abstract
A general protocol for the selective hydrogenation and deuteration of a variety of alkenes is presented. Key to success for these reactions is the use of a specific nickel-graphitic shell-based core-shell-structured catalyst, which is conveniently prepared by impregnation and subsequent calcination of nickel nitrate on carbon at 450 °C under argon. Applying this nanostructured catalyst, both terminal and internal alkenes, which are of industrial and commercial importance, were selectively hydrogenated and deuterated at ambient conditions (room temperature, using 1 bar hydrogen or 1 bar deuterium), giving access to the corresponding alkanes and deuterium-labeled alkanes in good to excellent yields. The synthetic utility and practicability of this Ni-based hydrogenation protocol is demonstrated by gram-scale reactions as well as efficient catalyst recycling experiments.
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Affiliation(s)
- Jie Gao
- Leibniz Leibniz-Institut für Katalyse e.V.Albert-Einstein-Strasse 29a18059RostockGermany
| | - Rui Ma
- Leibniz Leibniz-Institut für Katalyse e.V.Albert-Einstein-Strasse 29a18059RostockGermany
| | - Lu Feng
- Dalian National Laboratory for Clean Energy (DNL)Dalian Institute of Chemical PhysicsChinese Academy of Science457 Zhongshan Road116023DalianChina
| | - Yuefeng Liu
- Dalian National Laboratory for Clean Energy (DNL)Dalian Institute of Chemical PhysicsChinese Academy of Science457 Zhongshan Road116023DalianChina
| | - Ralf Jackstell
- Leibniz Leibniz-Institut für Katalyse e.V.Albert-Einstein-Strasse 29a18059RostockGermany
| | | | - Matthias Beller
- Leibniz Leibniz-Institut für Katalyse e.V.Albert-Einstein-Strasse 29a18059RostockGermany
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5
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Liu J, Guðmundsson A, Bäckvall J. Efficient Aerobic Oxidation of Organic Molecules by Multistep Electron Transfer. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jie Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University 410082 Changsha China
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University SE-10691 Stockholm Sweden
| | - Arnar Guðmundsson
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University SE-10691 Stockholm Sweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University SE-10691 Stockholm Sweden
- Department of Natural Sciences Mid Sweden University Holmgatan 10 SE-85170 Sundsvall Sweden
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Liu J, Guðmundsson A, Bäckvall J. Efficient Aerobic Oxidation of Organic Molecules by Multistep Electron Transfer. Angew Chem Int Ed Engl 2021; 60:15686-15704. [PMID: 33368909 PMCID: PMC9545650 DOI: 10.1002/anie.202012707] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Indexed: 12/17/2022]
Abstract
This Minireview presents recent important homogenous aerobic oxidative reactions which are assisted by electron transfer mediators (ETMs). Compared with direct oxidation by molecular oxygen (O2 ), the use of a coupled catalyst system with ETMs leads to a lower overall energy barrier via stepwise electron transfer. This cooperative catalytic process significantly facilitates the transport of electrons from the reduced form of the substrate-selective redox catalyst (SSRCred ) to O2 , thereby increasing the efficiency of the aerobic oxidation. In this Minireview, we have summarized the advances accomplished in recent years in transition-metal-catalyzed as well as metal-free aerobic oxidations of organic molecules in the presence of ETMs. In addition, the recent progress of photochemical and electrochemical oxidative functionalization using ETMs and O2 as the terminal oxidant is also highlighted. Furthermore, the mechanisms of these transformations are showcased.
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Affiliation(s)
- Jie Liu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University410082ChangshaChina
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-10691StockholmSweden
| | - Arnar Guðmundsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-10691StockholmSweden
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-10691StockholmSweden
- Department of Natural SciencesMid Sweden UniversityHolmgatan 10SE-85170SundsvallSweden
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7
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Guðmundsson A, Manna S, Bäckvall J. Iron(II)‐Catalyzed Aerobic Biomimetic Oxidation of Amines using a Hybrid Hydroquinone/Cobalt Catalyst as Electron Transfer Mediator. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Arnar Guðmundsson
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Srimanta Manna
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
- Department of Natural Sciences Mid Sweden University 85170 Sundsvall Sweden
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8
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Guðmundsson A, Manna S, Bäckvall J. Iron(II)-Catalyzed Aerobic Biomimetic Oxidation of Amines using a Hybrid Hydroquinone/Cobalt Catalyst as Electron Transfer Mediator. Angew Chem Int Ed Engl 2021; 60:11819-11823. [PMID: 33725364 PMCID: PMC8252094 DOI: 10.1002/anie.202102681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Indexed: 11/30/2022]
Abstract
Herein we report the first FeII -catalyzed aerobic biomimetic oxidation of amines. This oxidation reaction involves several electron transfer steps and is inspired by biological oxidation in the respiratory chain. The electron transfer from the amine to molecular oxygen is aided by two coupled catalytic redox systems, which lower the energy barrier and improve the selectivity of the oxidation reaction. An iron hydrogen transfer complex was utilized as the substrate-selective dehydrogenation catalyst along with a bifunctional hydroquinone/cobalt Schiff base complex as a hybrid electron transfer mediator. Various primary and secondary amines were oxidized in air to their corresponding aldimines or ketimines in good to excellent yield.
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Affiliation(s)
- Arnar Guðmundsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Srimanta Manna
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
- Department of Natural SciencesMid Sweden University85170SundsvallSweden
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9
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Puls F, Linke P, Kataeva O, Knölker HJ. Iron-Catalyzed Wacker-type Oxidation of Olefins at Room Temperature with 1,3-Diketones or Neocuproine as Ligands*. Angew Chem Int Ed Engl 2021; 60:14083-14090. [PMID: 33856090 PMCID: PMC8251641 DOI: 10.1002/anie.202103222] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Indexed: 11/11/2022]
Abstract
Herein, we describe a convenient and general method for the oxidation of olefins to ketones using either tris(dibenzoylmethanato)iron(III) [Fe(dbm)3 ] or a combination of iron(II) chloride and neocuproine (2,9-dimethyl-1,10-phenanthroline) as catalysts and phenylsilane (PhSiH3 ) as additive. All reactions proceed efficiently at room temperature using air as sole oxidant. This transformation has been applied to a variety of substrates, is operationally simple, proceeds under mild reaction conditions, and shows a high functional-group tolerance. The ketones are formed smoothly in up to 97 % yield and with 100 % regioselectivity, while the corresponding alcohols were observed as by-products. Labeling experiments showed that an incorporated hydrogen atom originates from the phenylsilane. The oxygen atom of the ketone as well as of the alcohol derives from the ambient atmosphere.
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Affiliation(s)
- Florian Puls
- Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Bergstrasse 66, 01069, Dresden, Germany
| | - Philipp Linke
- Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Bergstrasse 66, 01069, Dresden, Germany
| | - Olga Kataeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str. 8, Kazan, 420088, Russia
| | - Hans-Joachim Knölker
- Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Bergstrasse 66, 01069, Dresden, Germany
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Puls F, Linke P, Kataeva O, Knölker H. Iron‐Catalyzed Wacker‐type Oxidation of Olefins at Room Temperature with 1,3‐Diketones or Neocuproine as Ligands**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Florian Puls
- Fakultät Chemie und Lebensmittelchemie Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
| | - Philipp Linke
- Fakultät Chemie und Lebensmittelchemie Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
| | - Olga Kataeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center Russian Academy of Sciences Arbuzov Str. 8 Kazan 420088 Russia
| | - Hans‐Joachim Knölker
- Fakultät Chemie und Lebensmittelchemie Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
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Liu J, Bäckvall J. Efficient Palladium-Catalyzed Aerobic Oxidative Carbocyclization to Seven-Membered Heterocycles. Chemistry 2020; 26:15513-15518. [PMID: 32960479 PMCID: PMC7894550 DOI: 10.1002/chem.202004265] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Indexed: 11/09/2022]
Abstract
The use of molecular oxygen in palladium-catalyzed oxidation reactions is highly widespread in organic chemistry. However, the direct reoxidation of palladium by O2 is often kinetically unfavored, thus leading the deactivation of the palladium catalyst during the catalytic cycle. In the present work, we report a highly selective palladium-catalyzed carbocyclization of bisallenes to seven-membered heterocycles under atmospheric pressure of O2 . The use of a homogenous hybrid catalyst (Co(salophen)-HQ, HQ=hydroquinone) significantly promotes efficient electron transfer between the palladium catalyst and O2 through a low-energy pathway. This aerobic oxidative transformation shows broad substrate scope and functional group compatibility and allowed the preparation of O-containing seven-membered rings in good yields in most cases.
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Affiliation(s)
- Jie Liu
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
- College of Chemistry and Chemical EngineeringHunan University410082ChangshaP. R. China
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
- Department of Natural SciencesMid Sweden UniversityHolmgatan 1085170SundsvallSweden
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12
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Guðmundsson A, Schlipköter KE, Bäckvall J. Iron(II)-Catalyzed Biomimetic Aerobic Oxidation of Alcohols. Angew Chem Int Ed Engl 2020; 59:5403-5406. [PMID: 31999013 PMCID: PMC7154773 DOI: 10.1002/anie.202000054] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Indexed: 12/16/2022]
Abstract
We report the first FeII -catalyzed biomimetic aerobic oxidation of alcohols. The principle of this oxidation, which involves several electron-transfer steps, is reminiscent of biological oxidation in the respiratory chain. The electron transfer from the alcohol to molecular oxygen occurs with the aid of three coupled catalytic redox systems, leading to a low-energy pathway. An iron transfer-hydrogenation complex was utilized as a substrate-selective dehydrogenation catalyst, along with an electron-rich quinone and an oxygen-activating Co(salen)-type complex as electron-transfer mediators. Various primary and secondary alcohols were oxidized in air to the corresponding aldehydes or ketones with this method in good to excellent yields.
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Affiliation(s)
- Arnar Guðmundsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Kim Elisabeth Schlipköter
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
- Current address: Institute of Technical BiocatalysisHamburg University of Technology TUHH21071HamburgGermany
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
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Guðmundsson A, Schlipköter KE, Bäckvall J. Iron(II)‐Catalyzed Biomimetic Aerobic Oxidation of Alcohols. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000054] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Arnar Guðmundsson
- Department of Organic ChemistryArrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Kim Elisabeth Schlipköter
- Department of Organic ChemistryArrhenius Laboratory Stockholm University 10691 Stockholm Sweden
- Current address: Institute of Technical BiocatalysisHamburg University of Technology TUHH 21071 Hamburg Germany
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius Laboratory Stockholm University 10691 Stockholm Sweden
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14
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Abril P, Del Río MP, López JA, Lledós A, Ciriano MA, Tejel C. Inner-Sphere Oxygen Activation Promoting Outer-Sphere Nucleophilic Attack on Olefins. Chemistry 2019; 25:14546-14554. [PMID: 31432579 DOI: 10.1002/chem.201903068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/19/2019] [Indexed: 01/18/2023]
Abstract
Alkoxylation and hydroxylation reactions of 1,5-cyclooctadiene (cod) in an iridium complex with alcohols and water promoted by the reduction of oxygen to hydrogen peroxide are described. The exo configuration of the OH/OR groups in the products agrees with nucleophilic attack at the external face of the olefin as the key step. The reactions also require the presence of a coordinating protic acid (such as picolinic acid (Hpic)) and involve the participation of a cationic diolefin iridium(III) complex, [Ir(cod)(pic)2 ]+ , which has been isolated. Independently, this cation is also involved in easy alkoxy group exchange reactions, which are very unusual for organic ethers. DFT studies on the mechanism of olefin alkoxylation mediated by oxygen show a low-energy proton-coupled electron-transfer step connecting a superoxide-iridium(II) complex with hydroperoxide-iridium(III) intermediates, rather than peroxide complexes. Accordingly, a more complex reaction, with up to four different products, occurred upon reacting the diolefin-peroxide iridium(III) complex with Hpic. Moreover, such hydroperoxide intermediates are the origin of the regio- and stereoselectivity of the hydroxylation/alkoxylation reactions. If this protocol is applied to the diolefin-rhodium(I) complex [Rh(pic)(cod)], free alkyl ethers ORC8 H11 (R=Me, Et) resulted, and the reaction is enantioselective if a chiral amino acid, such as l-proline, is used instead of Hpic.
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Affiliation(s)
- Paula Abril
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - M Pilar Del Río
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - José A López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Agustí Lledós
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Miguel A Ciriano
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Cristina Tejel
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
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Thopate Y, Singh R, Rastogi SK, Sinha AK. A Highly Regioselective and Practical Synthesis of α‐Aryl Ketones under a Cooperative Cascade Effect of an Ionic Liquid and Tetrabutylammonium Fluoride. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yogesh Thopate
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi India
| | - Richa Singh
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
| | - Sumit K. Rastogi
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi India
| | - Arun K. Sinha
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi India
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16
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Hu M, Wu W, Jiang H. Palladium-Catalyzed Oxidation Reactions of Alkenes with Green Oxidants. CHEMSUSCHEM 2019; 12:2911-2935. [PMID: 30989816 DOI: 10.1002/cssc.201900397] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/09/2019] [Indexed: 06/09/2023]
Abstract
Transition-metal-catalyzed oxidative functionalization of alkenes has emerged as a powerful and valuable tool in modern organic synthesis. Recently, many methods have been established for the assembly of C-C and C-heteroatom bonds, which provides tremendous possibility for application in biology, medicine, and materials science. However, the use of stoichiometric amounts of strong oxidants leads to poor selectivity, low atom economy, and a series of undesired waste products. By contrast, green oxidants, such as O2 , H2 O2 , or tert-butyl hydroperoxide (TBHP), have bright prospects due to their attributes of mild, low cost, and great sustainability in transition-metal-catalyzed oxidation reactions. Based on the great and unique potential for the development of aerobic reactions, this review mainly highlights homogenous palladium-catalyzed green oxidations of alkenes that have been reported in recent years. These methods provide new strategies for the transformation and functionalization of alkenes; some of them have also been successfully applied to the synthesis of the core structures of drugs and natural products. Additionally, through in-depth studies of the reaction mechanisms in this field, it is believed that palladium-catalyzed green oxidation reactions of alkenes with O2 , H2 O2 , or TBHP will create added value for organic synthetic chemistry.
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Affiliation(s)
- Miao Hu
- Key Laboratory of Functional Molecular Engineering of, Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, PR China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of, Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, PR China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of, Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, PR China
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17
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Gao X, Zhou J, Peng X. Efficient Palladium(0) supported on reduced graphene oxide for selective oxidation of olefins using graphene oxide as a ‘solid weak acid’. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.01.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Liu J, Ricke A, Yang B, Bäckvall J. Efficient Palladium-Catalyzed Aerobic Arylative Carbocyclization of Enallenynes. Angew Chem Int Ed Engl 2018; 57:16842-16846. [PMID: 30351460 PMCID: PMC6471031 DOI: 10.1002/anie.201810501] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Indexed: 12/12/2022]
Abstract
Herein, we communicate a selective and efficient protocol for oxidative arylating carbocyclization of enallenynes using O2 as the oxidant. The key to success for this aerobic transformation is the application of a specific electron transfer mediator (ETM), a bifunctional catalyst consisting of a metal-macrocycle and quinone moieties. This catalyst significantly facilitates the reoxidation of Pd0 to PdII under atmospheric pressure of O2 . Diverse functionalized enallenynes react with aryl boronic acids to afford the corresponding cyclic tetraenes in moderate to good yields.
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Affiliation(s)
- Jie Liu
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691StockholmSweden
| | - Alexander Ricke
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691StockholmSweden
| | - Bin Yang
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691StockholmSweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691StockholmSweden
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19
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Liu J, Ricke A, Yang B, Bäckvall J. Efficient Palladium‐Catalyzed Aerobic Arylative Carbocyclization of Enallenynes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810501] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jie Liu
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University 10691 Stockholm Sweden
| | - Alexander Ricke
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University 10691 Stockholm Sweden
| | - Bin Yang
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University 10691 Stockholm Sweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University 10691 Stockholm Sweden
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21
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Metal/catalyst/reagent free hydration of alkynes up to gram scale under temperature and pressure controlled condition. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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22
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Zhang Z, Kumamoto Y, Hashiguchi T, Mamba T, Murayama H, Yamamoto E, Ishida T, Honma T, Tokunaga M. Wacker Oxidation of Terminal Alkenes Over ZrO 2 -Supported Pd Nanoparticles Under Acid- and Cocatalyst-Free Conditions. CHEMSUSCHEM 2017; 10:3482-3489. [PMID: 28834377 DOI: 10.1002/cssc.201701016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/04/2017] [Indexed: 06/07/2023]
Abstract
Highly efficient Wacker oxidation of aromatic or aliphatic terminal alkenes into methyl ketones and benzofurans is developed by using reusable Pd0 nanoparticles (NPs) supported on ZrO2 under acid- and cocatalyst-free conditions. Molecular oxygen or air can be utilized as the terminal oxidant, which results in the formation of H2 O as the only theoretical byproduct. The activation of the Pd NPs by O2 plays an important role in promoting this reaction. Interestingly, PdO supported on ZrO2 showed no activity. Additionally, the Pd particle size significantly affects the catalytic activity, with an apparent optimal diameter of 4-12 nm. In addition to the heterogeneous catalyst forms, the Pd NPs can be generated from a Pd0 complex during the reaction, and these particles are even recyclable.
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Affiliation(s)
- Zhenzhong Zhang
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yuhya Kumamoto
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Taishin Hashiguchi
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tetsuya Mamba
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Haruno Murayama
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Eiji Yamamoto
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tamao Ishida
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo, 192-0397, Japan
| | - Tetsuo Honma
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Sayo, Hyougo, 679-8198, Japan
| | - Makoto Tokunaga
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
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23
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Liu B, Jin F, Wang T, Yuan X, Han W. Wacker‐Type Oxidation Using an Iron Catalyst and Ambient Air: Application to Late‐Stage Oxidation of Complex Molecules. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Binbin Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
| | - Fengli Jin
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
| | - Tianjiao Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
| | - Xiaorong Yuan
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
| | - Wei Han
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
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24
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Liu B, Jin F, Wang T, Yuan X, Han W. Wacker-Type Oxidation Using an Iron Catalyst and Ambient Air: Application to Late-Stage Oxidation of Complex Molecules. Angew Chem Int Ed Engl 2017; 56:12712-12717. [PMID: 28815838 DOI: 10.1002/anie.201707006] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/06/2017] [Indexed: 11/10/2022]
Abstract
A practical and general iron-catalyzed Wacker-type oxidation of olefins to ketones is presented, and it uses ambient air as the sole oxidant. The mild oxidation conditions enable exceptional functional-group tolerance, which has not been demonstrated for any other Wacker-type reaction to date. The inexpensive and nontoxic reagents [iron(II) chloride, polymethylhydrosiloxane, and air] can, therefore, also be employed to oxidize complex natural-product-derived and polyfunctionalized molecules.
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Affiliation(s)
- Binbin Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road No.1, 210023, Nanjing, China
| | - Fengli Jin
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road No.1, 210023, Nanjing, China
| | - Tianjiao Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road No.1, 210023, Nanjing, China
| | - Xiaorong Yuan
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road No.1, 210023, Nanjing, China
| | - Wei Han
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road No.1, 210023, Nanjing, China
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25
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Chu CK, Ziegler DT, Carr B, Wickens ZK, Grubbs RH. Direct Access to β-Fluorinated Aldehydes by Nitrite-Modified Wacker Oxidation. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603424] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Crystal K. Chu
- Division of Chemistry and Chemical Engineering; California Institute of Technology; Pasadena CA 91125 USA
| | - Daniel T. Ziegler
- Division of Chemistry and Chemical Engineering; California Institute of Technology; Pasadena CA 91125 USA
| | - Brian Carr
- Division of Chemistry and Chemical Engineering; California Institute of Technology; Pasadena CA 91125 USA
| | - Zachary K. Wickens
- Division of Chemistry and Chemical Engineering; California Institute of Technology; Pasadena CA 91125 USA
| | - Robert H. Grubbs
- Division of Chemistry and Chemical Engineering; California Institute of Technology; Pasadena CA 91125 USA
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26
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Chu CK, Ziegler DT, Carr B, Wickens ZK, Grubbs RH. Direct Access to β-Fluorinated Aldehydes by Nitrite-Modified Wacker Oxidation. Angew Chem Int Ed Engl 2016; 55:8435-9. [PMID: 27225538 DOI: 10.1002/anie.201603424] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 04/26/2016] [Indexed: 12/17/2022]
Abstract
An aldehyde-selective Wacker-type oxidation of allylic fluorides proceeds with a nitrite catalyst. The method represents a direct route to prepare β-fluorinated aldehydes. Allylic fluorides bearing a variety of functional groups are transformed in high yield and very high regioselectivity. Additionally, the unpurified aldehyde products serve as versatile intermediates, thus enabling access to a diverse array of fluorinated building blocks. Preliminary mechanistic investigations suggest that inductive effects have a strong influence on the rate and regioselectivity of the oxidation.
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Affiliation(s)
- Crystal K Chu
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Daniel T Ziegler
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Brian Carr
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Zachary K Wickens
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Robert H Grubbs
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA.
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27
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Bedford RB, Bowen JG, Davidson RB, Haddow MF, Seymour-Julen AE, Sparkes HA, Webster RL. Facile Hydrolysis and Alcoholysis of Palladium Acetate. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500620] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Bedford RB, Bowen JG, Davidson RB, Haddow MF, Seymour-Julen AE, Sparkes HA, Webster RL. Facile Hydrolysis and Alcoholysis of Palladium Acetate. Angew Chem Int Ed Engl 2015; 54:6591-4. [DOI: 10.1002/anie.201500620] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 02/23/2015] [Indexed: 11/10/2022]
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29
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Lerch MM, Morandi B, Wickens ZK, Grubbs RH. Rapid Access to β-Trifluoromethyl-Substituted Ketones: Harnessing Inductive Effects in Wacker-Type Oxidations of Internal Alkenes. Angew Chem Int Ed Engl 2014; 53:8654-8. [DOI: 10.1002/anie.201404712] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Indexed: 11/11/2022]
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30
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Lerch MM, Morandi B, Wickens ZK, Grubbs RH. Rapid Access to β-Trifluoromethyl-Substituted Ketones: Harnessing Inductive Effects in Wacker-Type Oxidations of Internal Alkenes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404712] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Wickens ZK, Morandi B, Grubbs RH. Aldehyde-selective Wacker-type oxidation of unbiased alkenes enabled by a nitrite co-catalyst. Angew Chem Int Ed Engl 2013; 52:11257-60. [PMID: 24039135 DOI: 10.1002/anie.201306756] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Indexed: 11/06/2022]
Abstract
Breaking the rules: Reversal of the high Markovnikov selectivity of Wacker-type oxidations was accomplished using a nitrite co-catalyst. Unbiased aliphatic alkenes can be oxidized with high yield and aldehyde selectivity, and several functional groups are tolerated. (18) O-labeling experiments indicate that the aldehydic O atom is derived from the nitrite salt.
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Affiliation(s)
- Zachary K Wickens
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA)
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32
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Wickens ZK, Morandi B, Grubbs RH. Aldehyde-Selective Wacker-Type Oxidation of Unbiased Alkenes Enabled by a Nitrite Co-Catalyst. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306756] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Morandi B, Wickens ZK, Grubbs RH. Regioselective Wacker Oxidation of Internal Alkenes: Rapid Access to Functionalized Ketones Facilitated by Cross-Metathesis. Angew Chem Int Ed Engl 2013; 52:9751-4. [DOI: 10.1002/anie.201303587] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 06/09/2013] [Indexed: 11/06/2022]
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34
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Morandi B, Wickens ZK, Grubbs RH. Regioselective Wacker Oxidation of Internal Alkenes: Rapid Access to Functionalized Ketones Facilitated by Cross-Metathesis. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303587] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Mitsudome T, Yoshida S, Mizugaki T, Jitsukawa K, Kaneda K. Highly atom-efficient oxidation of electron-deficient internal olefins to ketones using a palladium catalyst. Angew Chem Int Ed Engl 2013; 52:5961-4. [PMID: 23610030 DOI: 10.1002/anie.201301611] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 03/26/2013] [Indexed: 11/08/2022]
Abstract
A 100% atom-efficient synthesis of ketones from electron-deficient internal olefins was achieved using O2 as a "green" oxidant (see scheme, DMA=N,N-dimethylacetamide, EWG=electron-withdrawing group). Various electron-deficient olefins were oxidized to the corresponding ketones with over 99% selectivity and without the formation of olefin isomers or their oxidized products.
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Affiliation(s)
- Takato Mitsudome
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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36
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Mitsudome T, Yoshida S, Mizugaki T, Jitsukawa K, Kaneda K. Highly Atom-Efficient Oxidation of Electron-Deficient Internal Olefins to Ketones Using a Palladium Catalyst. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301611] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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37
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Dong JJ, Fañanás-Mastral M, Alsters PL, Browne WR, Feringa BL. Palladium-Catalyzed Selective Anti-Markovnikov Oxidation of Allylic Esters. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301809] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Dong JJ, Fañanás-Mastral M, Alsters PL, Browne WR, Feringa BL. Palladium-Catalyzed Selective Anti-Markovnikov Oxidation of Allylic Esters. Angew Chem Int Ed Engl 2013; 52:5561-5. [DOI: 10.1002/anie.201301809] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Indexed: 11/06/2022]
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