51
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Li C, Kan J, Qiu Z, Li J, Lv L, Li C. Synergistic Relay Reactions To Achieve Redox‐Neutral α‐Alkylations of Olefinic Alcohols with Ruthenium(II) Catalysis. Angew Chem Int Ed Engl 2020; 59:4544-4549. [PMID: 31904892 DOI: 10.1002/anie.201915218] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/28/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Chen‐Chen Li
- Department of ChemistryMcGill University 801 Sherbrook West Montreal QC H3A 0B8 Canada
| | - Jian Kan
- Department of ChemistryMcGill University 801 Sherbrook West Montreal QC H3A 0B8 Canada
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao West Road 155 Fuzhou Fujian 350002 China
| | - Zihang Qiu
- Department of ChemistryMcGill University 801 Sherbrook West Montreal QC H3A 0B8 Canada
| | - Jianbin Li
- Department of ChemistryMcGill University 801 Sherbrook West Montreal QC H3A 0B8 Canada
| | - Leiyang Lv
- Department of ChemistryMcGill University 801 Sherbrook West Montreal QC H3A 0B8 Canada
| | - Chao‐Jun Li
- Department of ChemistryMcGill University 801 Sherbrook West Montreal QC H3A 0B8 Canada
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52
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Sancheti SP, Urvashi, Shah MP, Patil NT. Ternary Catalysis: A Stepping Stone toward Multicatalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04000] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Shashank P. Sancheti
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal, 462 066, India
| | - Urvashi
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal, 462 066, India
| | - Mosami P. Shah
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal, 462 066, India
| | - Nitin T. Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal, 462 066, India
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53
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Blake-Hedges JM, Pereira JH, Cruz-Morales P, Thompson MG, Barajas JF, Chen J, Krishna RN, Chan LJG, Nimlos D, Alonso-Martinez C, Baidoo EEK, Chen Y, Gin JW, Katz L, Petzold CJ, Adams PD, Keasling JD. Structural Mechanism of Regioselectivity in an Unusual Bacterial Acyl-CoA Dehydrogenase. J Am Chem Soc 2020; 142:835-846. [PMID: 31793780 DOI: 10.1021/jacs.9b09187] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Terminal alkenes are easily derivatized, making them desirable functional group targets for polyketide synthase (PKS) engineering. However, they are rarely encountered in natural PKS systems. One mechanism for terminal alkene formation in PKSs is through the activity of an acyl-CoA dehydrogenase (ACAD). Herein, we use biochemical and structural analysis to understand the mechanism of terminal alkene formation catalyzed by an γ,δ-ACAD from the biosynthesis of the polyketide natural product FK506, TcsD. While TcsD is homologous to canonical α,β-ACADs, it acts regioselectively at the γ,δ-position and only on α,β-unsaturated substrates. Furthermore, this regioselectivity is controlled by a combination of bulky residues in the active site and a lateral shift in the positioning of the FAD cofactor within the enzyme. Substrate modeling suggests that TcsD utilizes a novel set of hydrogen bond donors for substrate activation and positioning, preventing dehydrogenation at the α,β position of substrates. From the structural and biochemical characterization of TcsD, key residues that contribute to regioselectivity and are unique to the protein family were determined and used to identify other putative γ,δ-ACADs that belong to diverse natural product biosynthetic gene clusters. These predictions are supported by the demonstration that a phylogenetically distant homologue of TcsD also regioselectively oxidizes α,β-unsaturated substrates. This work exemplifies a powerful approach to understand unique enzymatic reactions and will facilitate future enzyme discovery, inform enzyme engineering, and aid natural product characterization efforts.
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Affiliation(s)
- Jacquelyn M Blake-Hedges
- Department of Chemistry , University of California , Berkeley , California 94720 , United States.,Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Jose Henrique Pereira
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Molecular Biophysics and Integrated Bioimaging , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Pablo Cruz-Morales
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Mitchell G Thompson
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Plant and Microbial Biology , University of California-Berkeley , Berkeley , California 94720 , United States
| | - Jesus F Barajas
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Plant and Microbial Biology , University of California-Berkeley , Berkeley , California 94720 , United States
| | - Jeffrey Chen
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Rohith N Krishna
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Leanne Jade G Chan
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Danika Nimlos
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Catalina Alonso-Martinez
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Edward E K Baidoo
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Yan Chen
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Energy Agile BioFoundry , Emeryville , California 94608 , United States
| | - Jennifer W Gin
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Energy Agile BioFoundry , Emeryville , California 94608 , United States
| | - Leonard Katz
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,QB3 Institute , University of California-Berkeley , Emeryville , California 94608 , United States
| | - Christopher J Petzold
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Energy Agile BioFoundry , Emeryville , California 94608 , United States
| | - Paul D Adams
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Molecular Biophysics and Integrated Bioimaging , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Jay D Keasling
- Joint BioEnergy Institute , Emeryville , California 94608 , United States.,Biological Systems and Engineering Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,QB3 Institute , University of California-Berkeley , Emeryville , California 94608 , United States.,Department of Chemical & Biomolecular Engineering, Department of Bioengineering , University of California-Berkeley , Berkeley , California 94720 , United States.,Novo Nordisk Foundation Center for Biosustainability , Technical University Denmark , DK2970 Horsholm , Denmark.,Center for Synthetic Biochemistry , Shenzhen Institutes for Advanced Technologies , Shenzhen 518055 , P. R. China
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54
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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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55
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Iron-catalysed regioselective hydrogenation of terminal epoxides to alcohols under mild conditions. Nat Catal 2019. [DOI: 10.1038/s41929-019-0286-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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56
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Yao C, Dahmen T, Gansäuer A, Norton J. Anti-Markovnikov alcohols via epoxide hydrogenation through cooperative catalysis. Science 2019; 364:764-767. [DOI: 10.1126/science.aaw3913] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 04/18/2019] [Indexed: 12/21/2022]
Abstract
The opening of epoxides typically requires electrophilic activation, and subsequent nucleophilic (SN2) attack on the less substituted carbon leads to alcohols with Markovnikov regioselectivity. We describe a cooperative catalysis approach to anti-Markovnikov alcohols by combining titanocene-catalyzed epoxide opening with chromium-catalyzed hydrogen activation and radical reduction. The titanocene enforces the anti-Markovnikov regioselectivity by forming the more highly substituted radical. The chromium catalyst sequentially transfers a hydrogen atom, proton, and electron from molecular hydrogen, avoiding a hydride transfer to the undesired site and resulting in 100% atom economy. Each step of the interconnected catalytic cycles was confirmed separately.
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Affiliation(s)
- Chengbo Yao
- Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA
| | - Tobias Dahmen
- Dottikon Exclusive Synthesis AG, Hembrunnstrasse 17, 5605 Dottikon, Switzerland
| | - Andreas Gansäuer
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard Domagk Str. 1, 53121 Bonn, Germany
| | - Jack Norton
- Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA
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57
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Komori S, Yamaguchi Y, Kataoka Y, Ura Y. Palladium-Catalyzed Aerobic Anti-Markovnikov Oxidation of Aliphatic Alkenes to Terminal Acetals. J Org Chem 2019; 84:3093-3099. [PMID: 30663313 DOI: 10.1021/acs.joc.8b02919] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Terminal acetals were selectively synthesized from various unbiased aliphatic terminal alkenes and 1,2-, 1,3-, or 1,4-diols using a PdCl2(MeCN)2/CuCl catalyst system in the presence of p-toluquinone under 1 atm of O2 and mild reaction conditions. The slow addition of terminal alkenes suppressed the isomerization to internal alkenes successfully. Electron-deficient cyclic alkenes, such as p-toluquinone, were key additives to enhance the catalytic activity and the anti-Markovnikov selectivity. The halogen groups in the alkenes were found to operate as directing groups, suppressing isomerization and increasing the selectivity efficiently.
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Affiliation(s)
- Saki Komori
- Department of Chemistry, Biology, and Environmental Science, Faculty of Science , Nara Women's University , Kitauoyanishi-machi, Nara 630-8506 , Japan
| | - Yoshiko Yamaguchi
- Department of Chemistry, Biology, and Environmental Science, Faculty of Science , Nara Women's University , Kitauoyanishi-machi, Nara 630-8506 , Japan
| | - Yasutaka Kataoka
- Department of Chemistry, Biology, and Environmental Science, Faculty of Science , Nara Women's University , Kitauoyanishi-machi, Nara 630-8506 , Japan
| | - Yasuyuki Ura
- Department of Chemistry, Biology, and Environmental Science, Faculty of Science , Nara Women's University , Kitauoyanishi-machi, Nara 630-8506 , Japan
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58
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Zhang Q, Wang J, Wei Y, Zhai H, Li Y. Stereoselective Synthesis of Spiro-2-oxabicyclo[2.2.2]octane Enabled by Ag(I)/ Brønsted Acid Relay Catalysis. Org Lett 2019; 21:1694-1698. [DOI: 10.1021/acs.orglett.9b00251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Qingyu Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jianping Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yansheng Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hongbin Zhai
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Yun Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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59
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Wu S, Zhou Y, Li Z. Biocatalytic selective functionalisation of alkenes via single-step and one-pot multi-step reactions. Chem Commun (Camb) 2019; 55:883-896. [PMID: 30566124 DOI: 10.1039/c8cc07828a] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Alkenes are excellent starting materials for organic synthesis due to the versatile reactivity of C[double bond, length as m-dash]C bonds and the easy availability of many unfunctionalised alkenes. Direct regio- and/or enantioselective conversion of alkenes into functionalised (chiral) compounds has enormous potential for industrial applications, and thus has attracted the attention of researchers for extensive development using chemo-catalysis over the past few years. On the other hand, many enzymes have also been employed for conversion of alkenes in a highly selective and much greener manner to offer valuable products. Herein, we review recent advances in seven well-known types of biocatalytic conversion of alkenes. Remarkably, recent mechanism-guided directed evolution and enzyme cascades have enabled the development of seven novel types of single-step and one-pot multi-step functionalisation of alkenes, some of which are even unattainable via chemo-catalysis. These new reactions are particularly highlighted in this feature article. Overall, we present an ever-expanding enzyme toolbox for various alkene functionalisations inspiring further research in this fast-developing theme.
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Affiliation(s)
- Shuke Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585.
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60
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Ye Z, Huang X, Shao Y, Jiang J, Qu LB, Zhao C, Ke Z. One catalyst, multiple processes: ligand effects on chemoselective control in Ru-catalyzed anti-Markovnikov reductive hydration of terminal alkynes. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02437e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The ligand effect through kinetic and thermodynamic control on the chemoselectivity of one-catalyst multi-step catalysis.
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Affiliation(s)
- Zongren Ye
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Xiao Huang
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Youxiang Shao
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Jingxing Jiang
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- People's Republic of China
| | - Cunyuan Zhao
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Zhuofeng Ke
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
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61
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Xing X, Xu C, Chen B, Li C, Virgil SC, Grubbs RH. Highly Active Platinum Catalysts for Nitrile and Cyanohydrin Hydration: Catalyst Design and Ligand Screening via High-Throughput Techniques. J Am Chem Soc 2018; 140:17782-17789. [DOI: 10.1021/jacs.8b11667] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangyou Xing
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Chen Xu
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Bo Chen
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Chengcheng Li
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Scott C. Virgil
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Robert H. Grubbs
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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62
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Smith CD, Phillips D, Tirla A, France DJ. Catalytic Isohypsic-Redox Sequences for the Rapid Generation of C sp3 -Containing Heterocycles. Chemistry 2018; 24:17201-17204. [PMID: 30203869 PMCID: PMC6391974 DOI: 10.1002/chem.201804131] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/10/2018] [Indexed: 12/12/2022]
Abstract
Cross‐coupling reactions catalyzed by transition metals are among the most influential in modern synthetic chemistry. The vast majority of transition‐metal‐catalyzed cross‐couplings rely on a catalytic cycle involving alternating oxidation and reduction of the metal center and are generally limited to forging just one type of new bond per reaction (e.g., the biaryl linkage formed during a Suzuki cross‐coupling). This work presents an Isohypsic‐Redox Sequence (IRS) that uses one metal to effect two catalytic cycles, thereby generating multiple new types of bonds from a single catalyst source. We show that the IRS strategy is amenable to several widely used transformations including the Suzuki–Miyaura coupling, Buchwald–Hartwig amination, and Wacker oxidation. Furthermore, each of these reactions generates value‐added heterocycles with significant sp3‐C (3‐dimensional) content. Our results provide a general framework for generating complex products by using a single metal to fulfill multiple roles. By uniting different combinations of reactions in the isohypsic and redox phases of the process, this type of catalytic multiple bond‐forming platform has the potential for wide applicability in the efficient synthesis of functional organic molecules.
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Affiliation(s)
- Craig D Smith
- WestChem School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK
| | - David Phillips
- WestChem School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK
| | - Alina Tirla
- WestChem School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK
| | - David J France
- WestChem School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK
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63
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Feng G, Sun S, Liu G, Long H, Liu L. Three-Component Oxyarylation of Alkenes Enables Access to C 3-Substituted Dihydrobenzofurans. Org Lett 2018; 20:7522-7525. [PMID: 30457345 DOI: 10.1021/acs.orglett.8b03278] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A practical and modular three-component alkene oxyarylation with benzoquinone and H2O to rapidly access C3-substituted dihydrobenzofurans has been developed. The (NH4)2S2O8-mediated redox-relay process has an excellent regioselectivity and functional group tolerance and exhibits a broad scope of simple alkenes, rapidly furnishing a variety of the substructures that would require multiple steps to prepare with traditional methods. Mechanistic studies revealed a dual role of benzoquinone serving as both the arylation agent and the origin of dihydroquinone for the reductive cyclization step.
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Affiliation(s)
- Guidong Feng
- School of Pharmaceutical Sciences , Shandong University , Jinan 250012 , China
| | - Shutao Sun
- School of Pharmaceutical Sciences , Shandong University , Jinan 250012 , China
| | - Guoliang Liu
- School of Pharmaceutical Sciences , Shandong University , Jinan 250012 , China
| | - Huan Long
- School of Pharmaceutical Sciences , Shandong University , Jinan 250012 , China
| | - Lei Liu
- School of Pharmaceutical Sciences , Shandong University , Jinan 250012 , China.,School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
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64
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Affiliation(s)
- Yangshan Li
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Ran Lu
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Shutao Sun
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Lei Liu
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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65
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Guo W, Gómez JE, Cristòfol À, Xie J, Kleij AW. Catalytic Transformations of Functionalized Cyclic Organic Carbonates. Angew Chem Int Ed Engl 2018; 57:13735-13747. [DOI: 10.1002/anie.201805009] [Citation(s) in RCA: 188] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Wusheng Guo
- Center for Organic ChemistryFrontier Institute of Science and Technology (FIST)Xi'an Jiaotong University Xi'an 710045 China
| | - José Enrique Gómez
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Àlex Cristòfol
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Jianing Xie
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluís Companys 23 08010 Barcelona Spain
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66
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Guo W, Gómez JE, Cristòfol À, Xie J, Kleij AW. Katalytische Umwandlung von funktionalisierten cyclischen organischen Carbonaten. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805009] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wusheng Guo
- Center for Organic ChemistryFrontier Institute of Science and Technology (FIST)Xi'an Jiaotong University Xi'an 710045 China
| | - José Enrique Gómez
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spanien
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spanien
| | - Àlex Cristòfol
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spanien
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spanien
| | - Jianing Xie
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spanien
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spanien
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spanien
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluís Companys 23 08010 Barcelona Spanien
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67
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Muñoz-López S, Couce-Rios A, Sciortino G, Lledós A, Ujaque G. Mechanistic Insights on the Hydration of Terminal and Internal Allenes Catalyzed by [(NHC)Au]+. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00230] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sara Muñoz-López
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
| | - Almudena Couce-Rios
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
| | - Giuseppe Sciortino
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, I-07100 Sassari, Italy
| | - Agustí Lledós
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
| | - Gregori Ujaque
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Catalonia, Spain
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68
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Marzo L, Pagire SK, Reiser O, König B. Photokatalyse mit sichtbarem Licht: Welche Bedeutung hat sie für die organische Synthese? Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201709766] [Citation(s) in RCA: 306] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Leyre Marzo
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Deutschland
| | - Santosh K. Pagire
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Deutschland
| | - Oliver Reiser
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Deutschland
| | - Burkhard König
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Deutschland
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69
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Marzo L, Pagire SK, Reiser O, König B. Visible-Light Photocatalysis: Does It Make a Difference in Organic Synthesis? Angew Chem Int Ed Engl 2018; 57:10034-10072. [PMID: 29457971 DOI: 10.1002/anie.201709766] [Citation(s) in RCA: 1132] [Impact Index Per Article: 188.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 01/12/2018] [Indexed: 12/12/2022]
Abstract
Visible-light photocatalysis has evolved over the last decade into a widely used method in organic synthesis. Photocatalytic variants have been reported for many important transformations, such as cross-coupling reactions, α-amino functionalizations, cycloadditions, ATRA reactions, or fluorinations. To help chemists select photocatalytic methods for their synthesis, we compare in this Review classical and photocatalytic procedures for selected classes of reactions and highlight their advantages and limitations. In many cases, the photocatalytic reactions proceed under milder reaction conditions, typically at room temperature, and stoichiometric reagents are replaced by simple oxidants or reductants, such as air, oxygen, or amines. Does visible-light photocatalysis make a difference in organic synthesis? The prospect of shuttling electrons back and forth to substrates and intermediates or to selectively transfer energy through a visible-light-absorbing photocatalyst holds the promise to improve current procedures in radical chemistry and to open up new avenues by accessing reactive species hitherto unknown, especially by merging photocatalysis with organo- or metal catalysis.
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Affiliation(s)
- Leyre Marzo
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Santosh K Pagire
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Oliver Reiser
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Burkhard König
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
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70
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Ahmed J, Chakraborty S, Jose A, P S, Mandal SK. Integrating Organic Lewis Acid and Redox Catalysis: The Phenalenyl Cation in Dual Role. J Am Chem Soc 2018; 140:8330-8339. [PMID: 29883115 DOI: 10.1021/jacs.8b04786] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In recent years, merging different types of catalysis in a single pot has drawn considerable attention and these catalytic processes have mainly relied upon metals. However, development of a completely metal free approach integrating organic redox and organic Lewis acidic property into a single system has been missing in the current literature. This study establishes that a redox active phenalenyl cation can activate one of the substrates by single electron transfer process while the same can activate the other substrate by a donor-acceptor type interaction using its Lewis acidity. This approach has successfully achieved light and metal-free catalytic C-H functionalization of unactivated arenes at ambient temperature (39 entries, including core moiety of a top-selling molecule boscalid), an economically attractive alternative to the rare metal-based multicatalysts process. A tandem approach involving trapping of reaction intermediates, spectroscopy along with density functional theory calculations unravels the dual role of phenalenyl cation.
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Affiliation(s)
- Jasimuddin Ahmed
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Kolkata , Mohanpur - 741246 , India
| | - Soumi Chakraborty
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Kolkata , Mohanpur - 741246 , India
| | - Anex Jose
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Kolkata , Mohanpur - 741246 , India
| | - Sreejyothi P
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Kolkata , Mohanpur - 741246 , India
| | - Swadhin K Mandal
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Kolkata , Mohanpur - 741246 , India
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71
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72
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Luo C, Bandar JS. Superbase-Catalyzed anti-Markovnikov Alcohol Addition Reactions to Aryl Alkenes. J Am Chem Soc 2018; 140:3547-3550. [DOI: 10.1021/jacs.8b00766] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chaosheng Luo
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Jeffrey S. Bandar
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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73
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Kohler DG, Gockel SN, Kennemur JL, Waller PJ, Hull KL. Palladium-catalysed anti-Markovnikov selective oxidative amination. Nat Chem 2018; 10:333-340. [PMID: 29461537 PMCID: PMC6092016 DOI: 10.1038/nchem.2904] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 10/30/2017] [Indexed: 01/05/2023]
Abstract
In recent years the synthesis of amines and other nitrogen containing motifs has been a major area of research in organic chemistry due to their being widely represented in biologically active molecules. Current strategies rely on a multistep approach and require one reactant to be activated prior to the carbon-nitrogen bond formation. This leads to reaction inefficiency and functional group intolerance. As such, a general approach to the synthesis of nitrogen-containing compounds from readily available and benign starting materials is highly desirable. Here we present a Pd-catalyzed oxidative amination reaction, where the addition of the nitrogen occurs at the less substituted carbon of a double bond, in what is known as anti-Markovnikov selectivity. Alkenes are shown to react with imides in the presence of a palladate catalyst to generate the terminal imide via trans-aminopalladation. Subsequently, olefin isomerization occurs to afford the thermodynamically favored products. Both the scope of the transformation and mechanistic investigations are reported.
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Affiliation(s)
- Daniel G Kohler
- Department of Chemistry, University of Illinois, Urbana-Champaign, 600 S. Mathews, Urbana, Illinois 61801, USA
| | - Samuel N Gockel
- Department of Chemistry, University of Illinois, Urbana-Champaign, 600 S. Mathews, Urbana, Illinois 61801, USA
| | - Jennifer L Kennemur
- Department of Chemistry, University of Illinois, Urbana-Champaign, 600 S. Mathews, Urbana, Illinois 61801, USA
| | - Peter J Waller
- Department of Chemistry, University of Illinois, Urbana-Champaign, 600 S. Mathews, Urbana, Illinois 61801, USA
| | - Kami L Hull
- Department of Chemistry, University of Illinois, Urbana-Champaign, 600 S. Mathews, Urbana, Illinois 61801, USA
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74
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Ghosh S, Debnath S, Das UK, Maiti DK. Fabrication and Diverse Ring-Expansion Nanocatalysis of Functionalized Pt-Nanoparticles to a General Synthesis of Pyrrolines: A 3D-Mid-IR Study. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Subhadeep Ghosh
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Sudipto Debnath
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Uttam K. Das
- Department
of Chemistry, School of Physical and Material Sciences, Mahatma Gandhi Central University, East Champaran, Motihari, Bihar 845401, India
| | - Dilip K. Maiti
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
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75
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Hammer SC, Kubik G, Watkins E, Huang S, Minges H, Arnold FH. Anti-Markovnikov alkene oxidation by metal-oxo–mediated enzyme catalysis. Science 2017; 358:215-218. [DOI: 10.1126/science.aao1482] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 09/05/2017] [Indexed: 12/23/2022]
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76
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Selective Oxidation of Aromatic Olefins Catalyzed by Copper(II) Complex in Micellar Media. Catal Letters 2017. [DOI: 10.1007/s10562-017-2160-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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77
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Wu S, Liu J, Li Z. Biocatalytic Formal Anti-Markovnikov Hydroamination and Hydration of Aryl Alkenes. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01464] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shuke Wu
- Department of Chemical
and
Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Ji Liu
- Department of Chemical
and
Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Zhi Li
- Department of Chemical
and
Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
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78
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Miyazawa K, Watkins M, Shluger AL, Fukuma T. Influence of ions on two-dimensional and three-dimensional atomic force microscopy at fluorite-water interfaces. NANOTECHNOLOGY 2017; 28:245701. [PMID: 28481216 DOI: 10.1088/1361-6528/aa7188] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recent advancement in liquid-environment atomic force microscopy (AFM) has enabled us to visualize three-dimensional (3D) hydration structures as well as two-dimensional (2D) surface structures with subnanometer-scale resolution at solid-water interfaces. However, the influence of ions present in solution on the 2D- and 3D-AFM measurements has not been well understood. In this study, we perform atomic-scale 2D- and 3D-AFM measurements at fluorite-water interfaces in pure water and a supersaturated solution of fluorite. The images obtained in these two environments are compared to understand the influence of the ions in solution on these measurements. In the 2D images, we found clear difference in the nanoscale structures but no significant difference in the atomic-scale contrasts. However, the 3D force images show clear difference in the subnanometer-scale contrasts. The force contrasts measured in pure water largely agree with those expected from the molecular dynamics simulation and the solvent tip approximation model. In the supersaturated solution, an additional force peak is observed over the negatively charged fluorine ion site. This location suggests that the observed force peak may originate from cations adsorbed on the fluorite surface. These results demonstrate that the ions can significantly alter the subnanometer-scale force contrasts in the 3D-AFM images.
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Affiliation(s)
- K Miyazawa
- Division of Electrical Engineering and Computer Science, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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79
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Jiang YF, Yuan CZ, Xie X, Zhou X, Jiang N, Wang X, Imran M, Xu AW. A Novel Magnetically Recoverable Ni-CeO 2-x/Pd Nanocatalyst with Superior Catalytic Performance for Hydrogenation of Styrene and 4-Nitrophenol. ACS APPLIED MATERIALS & INTERFACES 2017; 9:9756-9762. [PMID: 28244326 DOI: 10.1021/acsami.7b00293] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Metal/support nanocatalysts consisting of various metals and metal oxides not only retain the basic properties of each component but also exhibit higher catalytic activity due to their synergistic effects. Herein, we report the creation of a highly efficient, long-lasting, and magnetic recyclable catalyst, composed of magnetic nickel (Ni) nanoparticles (NPs), active Pd NPs, and oxygen-deficient CeO2-x support. These hybrid nanostructures composed of oxygen deficient CeO2-x and active metal nanoparticles could effectively facilitate diffusion of reactant molecules and active site exposure that can dramatically accelerate the reaction rate. Impressively, the rate constant k and k/m of 4-nitrophenol reduction over 61 wt % Ni-CeO2-x/0.1 wt % Pd catalyst are 0.0479 s-1 and 2.1 × 104 min-1 g-1, respectively, and the reaction conversion shows negligible decline even after 20 cycles. Meanwhile, the optimal 61 wt % Ni-CeO2-x/3 wt % Pd catalyst manifests remarkable catalytic activity toward styrene hydrogenation with a high TOF of 6827 molstyrene molPd-1 h-1 and a selective conversion of 100% to ethylbenzene even after eight cycles. The strong metal-support interaction (SMSI) between Ni NPs, Pd NPs, and oxygen-deficient CeO2-x support is beneficial for superior catalytic efficiency and stability toward hydrogenation of styrene and 4-nitrophenol. Moreover, Ni species could boost the catalytic activity of Pd due to their synergistic effect and strengthen the interaction between reactant and catalyst, which seems responsible for the great enhancement of catalytic activity. Our findings provide a new perspective to develop other high-performance and magnetically recoverable nanocatalysts, which would be widely applied to a variety of catalytic reactions.
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Affiliation(s)
- Yi-Fan Jiang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, PR China
| | - Cheng-Zong Yuan
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, PR China
| | - Xiao Xie
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, PR China
| | - Xiao Zhou
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, PR China
| | - Nan Jiang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, PR China
| | - Xin Wang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, PR China
| | - Muhammad Imran
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, PR China
| | - An-Wu Xu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, PR China
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80
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Affiliation(s)
- Xia Hu
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Guoting Zhang
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Faxiang Bu
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
- Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 P. R. China
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81
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Luo Y, Sun H, Zhang W, Wang X, Xu S, Zhang G, Jian Y, Gao Z. Triple zirconocene/brønsted acid/CuO cooperative and relay catalysis system for tandem Mannich addition/C–C formative cyclization/oxidation. RSC Adv 2017. [DOI: 10.1039/c7ra00870h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Triple zirconocene/brønsted acid/CuO cooperative and relay catalysis system for tandem Mannich addition/C–C formative cyclization/oxidation.
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Affiliation(s)
- Yanlong Luo
- Key Laboratory of Applied Surface and Colloid Chemistry
- MOE School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Huaming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry
- MOE School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Weiqiang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry
- MOE School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Xiu Wang
- Key Laboratory of Applied Surface and Colloid Chemistry
- MOE School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Shan Xu
- Key Laboratory of Applied Surface and Colloid Chemistry
- MOE School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Guofang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry
- MOE School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Yajun Jian
- Key Laboratory of Applied Surface and Colloid Chemistry
- MOE School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry
- MOE School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
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82
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Irshad M, Choi BG, Kang O, Hong SB, Hwang SY, Heo YM, Kim JW. Efficient Oxidative Scission of Alkenes or Alkynes with Heterogeneous Ruthenium Zirconia Catalyst. APPLIED CHEMISTRY FOR ENGINEERING 2016. [DOI: 10.14478/ace.2016.1106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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83
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Jhong HM, Liu YH, Peng SM, Liu ST. Oxidative Cleavage of Styrenes Catalyzed by a PdIIComplex of an 8-Hydroxyquinolinonate Ligand. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600951] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hong-Ming Jhong
- Department of Chemistry; National Taiwan University; 1, Sec. 4, Roosevelt Road 106 Taipei Taiwan
| | - Yi-Hung Liu
- Department of Chemistry; National Taiwan University; 1, Sec. 4, Roosevelt Road 106 Taipei Taiwan
| | - Shie-Ming Peng
- Department of Chemistry; National Taiwan University; 1, Sec. 4, Roosevelt Road 106 Taipei Taiwan
| | - Shiuh-Tzung Liu
- Department of Chemistry; National Taiwan University; 1, Sec. 4, Roosevelt Road 106 Taipei Taiwan
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84
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Tracey J, Miyazawa K, Spijker P, Miyata K, Reischl B, Canova FF, Rohl AL, Fukuma T, Foster AS. Understanding 2D atomic resolution imaging of the calcite surface in water by frequency modulation atomic force microscopy. NANOTECHNOLOGY 2016; 27:415709. [PMID: 27609045 DOI: 10.1088/0957-4484/27/41/415709] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Frequency modulation atomic force microscopy (FM-AFM) experiments were performed on the calcite (10[Formula: see text]4) surface in pure water, and a detailed analysis was made of the 2D images at a variety of frequency setpoints. We observed eight different contrast patterns that reproducibly appeared in different experiments and with different measurement parameters. We then performed systematic free energy calculations of the same system using atomistic molecular dynamics to obtain an effective force field for the tip-surface interaction. By using this force field in a virtual AFM simulation we found that each experimental contrast could be reproduced in our simulations by changing the setpoint, regardless of the experimental parameters. This approach offers a generic method for understanding the wide variety of contrast patterns seen on the calcite surface in water, and is generally applicable to AFM imaging in liquids.
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Affiliation(s)
- John Tracey
- COMP Centre of Excellence, Department of Applied Physics, Aalto University, Helsinki FI-00076, Finland
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85
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Mi C, Li L, Meng XG, Yang RQ, Liao XH. Highly selective oxidation of unsaturated hydrocarbons to carbonyl compounds by two-phase catalysis. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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86
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Margrey KA, Nicewicz DA. A General Approach to Catalytic Alkene Anti-Markovnikov Hydrofunctionalization Reactions via Acridinium Photoredox Catalysis. Acc Chem Res 2016; 49:1997-2006. [PMID: 27588818 DOI: 10.1021/acs.accounts.6b00304] [Citation(s) in RCA: 361] [Impact Index Per Article: 45.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of methods for anti-Markovnikov alkene hydrofunctionalization has been a focal point of catalysis research for several decades. The vast majority of work on the control of regioselectivity for this reaction class has hinged on transition metal catalyst activation of olefin substrates. While progress has been realized, there are significant limitations to this approach, and a general solution for catalysis of anti-Markovnikov hydrofunctionalization reactions of olefins does not presently exist. In the past several years, this research lab has focused on alkene activation by single electron oxidation using organic photoredox catalysts to facilitate anti-Markovnikov hydrofunctionalization. By accessing reactive cation radical intermediates, we have realized a truly general approach to anti-Markovnikov olefin hydrofunctionalization reactions. We have identified a dual organic catalyst system consisting of an acridinium photooxidant, first reported by Fukuzumi, and a redox-active hydrogen atom donor that accomplishes a wide range of hydrofunctionalization reactions with complete anti-Markovnikov regiocontrol. This method relies on single electron oxidation of the alkene to reverse its polarity and results in the opposite regioselectivity for hydrofunctionalization. In 2012, we disclosed the anti-Markovnikov hydroetherification of alkenols employing an acridinium photocatalyst and a hydrogen atom donor that proceeds via interwoven polar and radical steps. This general catalyst system has enabled several important reactions in this area, including anti-Markovnikov alkene hydroacetoxylation, hydrolactonization, hydroamination, and hydrotrifluoromethylation reactions. More recently, we have also delineated conditions for intermolecular anti-Markovnikov hydroamination reactions of alkenes using either triflamide or nitrogen-containing heteroaromatic compounds such as pyrazole, indazole, imidazole, and 1,2,3-triazole. Further development led to a method for the anti-Markovnikov addition of mineral acids to olefins using lutidinium halide salts as convenient reagents to deliver the mineral acids. Acids including HCl, HF, H3PO4, and MeSO3H all participate in the hydrofunctionalization reactions, even with alkenes that are highly prone to polymerization. A combination of transient and steady-state absorption spectroscopy tools were employed to observe alkene cation radicals and the resultant acridine radical, lending support for an electron transfer mechanism. The origin of the anti-Markovnikov selectivity in these reactions is likely the result of a reversible addition of the nucleophile to the alkene cation radical resulting in a greater population of the more stable radical. Loss of a proton followed by reaction of the radical intermediate with the hydrogen atom donor completes the transformations. Again, by means of transient absorption spectroscopy, oxidative turnover of the acridine radical was observed to complete the dual catalytic cycle mechanistic picture.
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Affiliation(s)
- Kaila A. Margrey
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - David A. Nicewicz
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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87
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Zhang G, Hu X, Chiang CW, Yi H, Pei P, Singh AK, Lei A. Anti-Markovnikov Oxidation of β-Alkyl Styrenes with H2O as the Terminal Oxidant. J Am Chem Soc 2016; 138:12037-40. [DOI: 10.1021/jacs.6b07411] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Guoting Zhang
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xia Hu
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Chien-Wei Chiang
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Hong Yi
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Pengkun Pei
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Atul K. Singh
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P. R. China
- Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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88
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Guo W, Martínez-Rodríguez L, Martin E, Escudero-Adán EC, Kleij AW. Highly Efficient Catalytic Formation of (Z)-1,4-But-2-ene Diols Using Water as a Nucleophile. Angew Chem Int Ed Engl 2016; 55:11037-40. [DOI: 10.1002/anie.201603638] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 06/21/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Wusheng Guo
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Luis Martínez-Rodríguez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Eddy Martin
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Eduardo C. Escudero-Adán
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA); Pg. Lluís Companys 23 08010 Barcelona Spain
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89
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Guo W, Martínez-Rodríguez L, Martin E, Escudero-Adán EC, Kleij AW. Highly Efficient Catalytic Formation of (Z)-1,4-But-2-ene Diols Using Water as a Nucleophile. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603638] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wusheng Guo
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Luis Martínez-Rodríguez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Eddy Martin
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Eduardo C. Escudero-Adán
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA); Pg. Lluís Companys 23 08010 Barcelona Spain
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90
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Couce-Rios A, Lledós A, Ujaque G. The Origin of Anti-Markovnikov Regioselectivity in Alkene Hydroamination Reactions Catalyzed by [Rh(DPEphos)]+. Chemistry 2016; 22:9311-20. [DOI: 10.1002/chem.201504645] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 04/11/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Almudena Couce-Rios
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Cerdanyola del Vallès Spain
| | - Agustí Lledós
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Cerdanyola del Vallès Spain
| | - Gregori Ujaque
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Cerdanyola del Vallès Spain
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91
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Ning XS, Wang MM, Yao CZ, Chen XM, Kang YB. tert-Butyl Nitrite: Organic Redox Cocatalyst for Aerobic Aldehyde-Selective Wacker-Tsuji Oxidation. Org Lett 2016; 18:2700-3. [PMID: 27191227 DOI: 10.1021/acs.orglett.6b01165] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An aldehyde-selective aerobic Wacker-Tsuji oxidation is developed. Using tert-butyl nitrite as a simple organic redox cocatalyst instead of copper or silver salts, a variety of aldehydes were achieved as major products in up to 30/1 regioselectivity as well as good to high yields at room temperature.
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Affiliation(s)
- Xiao-Shan Ning
- Center of Advanced Nanocatalysis, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Mei-Mei Wang
- Center of Advanced Nanocatalysis, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Chuan-Zhi Yao
- Center of Advanced Nanocatalysis, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Xian-Min Chen
- Center of Advanced Nanocatalysis, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Yan-Biao Kang
- Center of Advanced Nanocatalysis, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, China
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92
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Bruk LG, Temkin ON. Conjugate reactions: New potentials of an old idea. KINETICS AND CATALYSIS 2016. [DOI: 10.1134/s0023158416030022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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93
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Miyazawa K, Kobayashi N, Watkins M, Shluger AL, Amano KI, Fukuma T. A relationship between three-dimensional surface hydration structures and force distribution measured by atomic force microscopy. NANOSCALE 2016; 8:7334-42. [PMID: 26980273 DOI: 10.1039/c5nr08092d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Hydration plays important roles in various solid-liquid interfacial phenomena. Very recently, three-dimensional scanning force microscopy (3D-SFM) has been proposed as a tool to visualise solvated surfaces and their hydration structures with lateral and vertical (sub) molecular resolution. However, the relationship between the 3D force map obtained and the equilibrium water density, ρ(r), distribution above the surface remains an open question. Here, we investigate this relationship at an interface of an inorganic mineral, fluorite, and water. The force maps measured in pure water are directly compared to force maps generated using the solvent tip approximation (STA) model and from explicit molecular dynamics simulations. The results show that the simulated STA force map describes the major features of the experimentally obtained force image. The agreement between the STA data and the experiment establishes the correspondence between the water density used as an input to the STA model and the experimental hydration structure and thus provides a tool to bridge the experimental force data and atomistic solvation structures. Further applications of this method should improve the accuracy and reliability of both interpretation of 3D-SFM force maps and atomistic simulations in a wide range of solid-liquid interfacial phenomena.
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Affiliation(s)
- Keisuke Miyazawa
- Division of Electrical Engineering and Computer Science, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Naritaka Kobayashi
- Division of Electrical Engineering and Computer Science, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Matthew Watkins
- School of Mathematics and Physics, University of Lincoln, Brayford Pool, Lincoln LN6 7TS, UK
| | - Alexander L Shluger
- Department of Physics and Astronomy and London Centre for Nanotechnology, University College London, Gower Street, London, WC1E 6BT, UK
| | - Ken-ichi Amano
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Takeshi Fukuma
- Division of Electrical Engineering and Computer Science, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan. and ACT-C, Japan Science and Technology Agency, Honcho 4-1-9, Kawaguchi 332-0012, Japan
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94
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Dhiman S, Mishra UK, Ramasastry SSV. One-Pot Trimetallic Relay Catalysis: A Unified Approach for the Synthesis of β-Carbolines and Other [c]-Fused Pyridines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600840] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Seema Dhiman
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
| | - Uttam K. Mishra
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
| | - S. S. V. Ramasastry
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
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95
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Dhiman S, Mishra UK, Ramasastry SSV. One-Pot Trimetallic Relay Catalysis: A Unified Approach for the Synthesis of β-Carbolines and Other [c]-Fused Pyridines. Angew Chem Int Ed Engl 2016; 55:7737-41. [DOI: 10.1002/anie.201600840] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Seema Dhiman
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
| | - Uttam K. Mishra
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
| | - S. S. V. Ramasastry
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Knowledge City, Sector 81, S. A. S. Nagar, Manuali PO Punjab 140306 India
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96
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Nakaoka S, Murakami Y, Kataoka Y, Ura Y. Maleimide-assisted anti-Markovnikov Wacker-type oxidation of vinylarenes using molecular oxygen as a terminal oxidant. Chem Commun (Camb) 2016; 52:335-8. [DOI: 10.1039/c5cc06746d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Arylacetaldehydes were successfully synthesized by anti-Markovnikov Wacker-type oxidation of vinylarenes using 1 atm O2 as a terminal oxidant.
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Affiliation(s)
- Sonoe Nakaoka
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Kitauoyanishi-machi, Nara
- Japan
| | - Yuka Murakami
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Kitauoyanishi-machi, Nara
- Japan
| | - Yasutaka Kataoka
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Kitauoyanishi-machi, Nara
- Japan
| | - Yasuyuki Ura
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Kitauoyanishi-machi, Nara
- Japan
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97
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Manisha M, Dhiman S, Mathew J, Ramasastry SSV. One-pot relay catalysis: divergent synthesis of furo[3,4-b]indoles and cyclopenta[b]indoles from 3-(2-aminophenyl)-1,4-enynols. Org Biomol Chem 2016; 14:5563-8. [DOI: 10.1039/c6ob00319b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described herein a divergent strategy for the synthesis of furo[3,4-b]indoles via a sequential Ag(i)/Bi(iii)/Pd(ii) catalysis and cyclopenta[b]indoles via a one-pot Ag(i)/Brønsted acid relay catalysis, starting from the easily accessible 3-(2 aminophenyl)-4-pentenyn-3-ols.
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Affiliation(s)
- Manisha Manisha
- Organic Synthesis and Catalysis Lab
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manuali PO
- India
| | - Seema Dhiman
- Organic Synthesis and Catalysis Lab
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manuali PO
- India
| | - Jopaul Mathew
- Organic Synthesis and Catalysis Lab
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manuali PO
- India
| | - S. S. V. Ramasastry
- Organic Synthesis and Catalysis Lab
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manuali PO
- India
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98
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Zeng M, Herzon SB. Synthesis of 1,3-Amino Alcohols, 1,3-Diols, Amines, and Carboxylic Acids from Terminal Alkynes. J Org Chem 2015. [DOI: 10.1021/acs.joc.5b01220] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mingshuo Zeng
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Seth B. Herzon
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
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99
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Xiang Y, Barbosa R, Li X, Kruse N. Ternary Cobalt–Copper–Niobium Catalysts for the Selective CO Hydrogenation to Higher Alcohols. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00388] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yizhi Xiang
- Chemical Physics of Materials (Catalysis-Tribology), Université Libre de Bruxelles, Campus Plaine, CP 243, 1050 Brussels, Belgium
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, P.O. Box 646515, Pullman, Washington 99164-6515, United States
| | - Roland Barbosa
- Chemical Physics of Materials (Catalysis-Tribology), Université Libre de Bruxelles, Campus Plaine, CP 243, 1050 Brussels, Belgium
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, P.O. Box 646515, Pullman, Washington 99164-6515, United States
| | - Xiaonian Li
- Industrial Catalysis Institute of Zhejiang University of Technology, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Hangzhou, Zhejiang 310014, People’s Republic of China
| | - Norbert Kruse
- Chemical Physics of Materials (Catalysis-Tribology), Université Libre de Bruxelles, Campus Plaine, CP 243, 1050 Brussels, Belgium
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, P.O. Box 646515, Pullman, Washington 99164-6515, United States
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100
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Jiang YY, Zhang Q, Yu HZ, Fu Y. Mechanism of Aldehyde-Selective Wacker-Type Oxidation of Unbiased Alkenes with a Nitrite Co-Catalyst. ACS Catal 2015. [DOI: 10.1021/cs5018776] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuan-Ye Jiang
- Collaborative Innovation Center of Chemistry for Energy Materials, CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Qi Zhang
- Collaborative Innovation Center of Chemistry for Energy Materials, CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hai-Zhu Yu
- Department of Polymer Science and Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Huasheng Building, Beijing 100083, China
| | - Yao Fu
- Collaborative Innovation Center of Chemistry for Energy Materials, CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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