1
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Rao CJ, Sudheer M, Battula VR. Triflic‐Acid‐Catalyzed Tandem Epoxide Rearrangement and Annulation with Alkynes: An Efficient Approach for Regioselective Synthesis of Naphthalenes. ChemistrySelect 2022. [DOI: 10.1002/slct.202200427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Mokhamatam Sudheer
- Department of Engineering Chemistry AUCE (A) Andhra University Visakhapatnam INDIA – 530003
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2
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Puls F, Seewald F, Grinenko V, Klauß HH, Knölker HJ. Mechanistic Studies on the Hexadecafluorophthalocyanine-Iron-Catalyzed Wacker-Type Oxidation of Olefins to Ketones*. Chemistry 2021; 27:16776-16787. [PMID: 34546596 PMCID: PMC9298363 DOI: 10.1002/chem.202102848] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 12/15/2022]
Abstract
The hexadecafluorophthalocyanine-iron complex FePcF16 was recently shown to convert olefins into ketones in the presence of stoichiometric amounts of triethylsilane in ethanol at room temperature under an oxygen atmosphere. Herein, we describe an extensive mechanistic investigation for the conversion of 2-vinylnaphthalene into 2-acetylnaphthalene as model reaction. A variety of studies including deuterium- and 18 O2 -labeling experiments, ESI-MS, and 57 Fe Mössbauer spectroscopy were performed to identify the intermediates involved in the catalytic cycle of the oxidation process. Finally, a detailed and well-supported reaction mechanism for the FePcF16 -catalyzed Wacker-type oxidation is proposed.
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Affiliation(s)
- Florian Puls
- Fakultät Chemie, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
| | - Felix Seewald
- Institute of Solid State and Materials Physics Fakultät Physik, Technische Universität Dresden, Zellescher Weg 16, 01069, Dresden, Germany
| | - Vadim Grinenko
- Institute of Solid State and Materials Physics Fakultät Physik, Technische Universität Dresden, Zellescher Weg 16, 01069, Dresden, Germany
| | - Hans-Henning Klauß
- Institute of Solid State and Materials Physics Fakultät Physik, Technische Universität Dresden, Zellescher Weg 16, 01069, Dresden, Germany
| | - Hans-Joachim Knölker
- Fakultät Chemie, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
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3
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Ob-eye J, Chaiendoo K, Itthibenchapong V. Catalytic Conversion of Epoxidized Palm Fatty Acids through Oxirane Ring Opening Combined with Esterification and the Properties of Palm Oil-Based Biolubricants. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jeerati Ob-eye
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Kanokwan Chaiendoo
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Vorranutch Itthibenchapong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
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4
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Ziarani GM, Roshankar S, Mohajer F, Badiei A. The Synthesis and Application of Functionalized Mesoporous Silica SBA-15 as Heterogeneous Catalyst in Organic Synthesis. CURR ORG CHEM 2021. [DOI: 10.2174/1385272824999201210194444] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Mesoporous silica nanomaterials provide an extraordinary advantage for making
new and superior heterogeneous catalysts because of their surface silanol groups. The functionalized
mesoporous SBA-15, such as acidic, basic, BrÖnsted, lewis acid, and chiral catalysts,
are used for a wide range of organic syntheses. The importance of the chiral ligands,
which were immobilized on the SBA-15, was mentioned in this review to achieve chiral
products as valuable target molecules. Herein, their synthesis and application in different organic
transformations are reviewed from 2016 till date 2020.
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Affiliation(s)
| | - Shima Roshankar
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | - Fatemeh Mohajer
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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5
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Hu Y, Wei Z, Frey A, Kubis C, Ren C, Spannenberg A, Jiao H, Werner T. Catalytic, Kinetic, and Mechanistic Insights into the Fixation of CO 2 with Epoxides Catalyzed by Phenol-Functionalized Phosphonium Salts. CHEMSUSCHEM 2021; 14:363-372. [PMID: 33068328 PMCID: PMC7839512 DOI: 10.1002/cssc.202002267] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/15/2020] [Indexed: 06/11/2023]
Abstract
A series of hydroxy-functionalized phosphonium salts were studied as bifunctional catalysts for the conversion of CO2 with epoxides under mild and solvent-free conditions. The reaction in the presence of a phenol-based phosphonium iodide proceeded via a first order rection kinetic with respect to the substrate. Notably, in contrast to the aliphatic analogue, the phenol-based catalyst showed no product inhibition. The temperature dependence of the reaction rate was investigated, and the activation energy for the model reaction was determined from an Arrhenius-plot (Ea =39.6 kJ mol-1 ). The substrate scope was also evaluated. Under the optimized reaction conditions, 20 terminal epoxides were converted at room temperature to the corresponding cyclic carbonates, which were isolated in yields up to 99 %. The reaction is easily scalable and was performed on a scale up to 50 g substrate. Moreover, this method was applied in the synthesis of the antitussive agent dropropizine starting from epichlorohydrin and phenylpiperazine. Furthermore, DFT calculations were performed to rationalize the mechanism and the high efficiency of the phenol-based phosphonium iodide catalyst. The calculation confirmed the activation of the epoxide via hydrogen bonding for the iodide salt, which facilitates the ring-opening step. Notably, the effective Gibbs energy barrier regarding this step is 97 kJ mol-1 for the bromide and 72 kJ mol-1 for the iodide salt, which explains the difference in activity.
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Affiliation(s)
- Yuya Hu
- Leibniz Institute for Catalysis e. V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Zhihong Wei
- Leibniz Institute for Catalysis e. V.Albert-Einstein-Straße 29a18059RostockGermany
- Institute of Molecular ScienceKey Laboratory of Materials for Energy Conversion and Storage of Shanxi ProvinceShanxi UniversityTaiyuan030006P. R. China
| | - Anna Frey
- Leibniz Institute for Catalysis e. V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Christoph Kubis
- Leibniz Institute for Catalysis e. V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Chang‐Yue Ren
- Leibniz Institute for Catalysis e. V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Anke Spannenberg
- Leibniz Institute for Catalysis e. V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Haijun Jiao
- Leibniz Institute for Catalysis e. V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Thomas Werner
- Leibniz Institute for Catalysis e. V.Albert-Einstein-Straße 29a18059RostockGermany
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6
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Yang G, Liu Y, Li K, Liu W, Yu B, Hu C. H3PMo12O40-catalyzed coupling of diarylmethanols with epoxides/diols/aldehydes toward polyaryl-substituted aldehydes. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.07.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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7
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Kalshetti R, Ramana CV. Oxidative Rearrangement of Stilbenes to 2,2-Diaryl-2-hydroxyacetaldehydes. ACS OMEGA 2020; 5:25199-25208. [PMID: 33043198 PMCID: PMC7542859 DOI: 10.1021/acsomega.0c03328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
A one-pot oxone-mediated/iodine-catalyzed oxidative rearrangement of stilbenes leading to 2,2-diaryl-2-hydroxyacetaldehydes is described. Control experiments revealed that a 2,2-diarylacetaldehyde was initially formed that undergoes subsequent α-hydroxylation. The resulting α-hydroxyaldehydes have been subjected to a one-pot Still-Gennari olefination followed by cyclization, leading to 5,5-diaryl-γ-butenolides.
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Affiliation(s)
- Rupali
G. Kalshetti
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
| | - Chepuri V. Ramana
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
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8
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Philippov A, Chibiryaev A, Martyanov O. Raney® nickel-catalyzed hydrodeoxygenation and dearomatization under transfer hydrogenation conditions—Reaction pathways of non-phenolic compounds. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.05.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Catalytic nanosponges of acidic aluminosilicates for plastic degradation and CO 2 to fuel conversion. Nat Commun 2020; 11:3828. [PMID: 32737304 PMCID: PMC7395177 DOI: 10.1038/s41467-020-17711-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 07/07/2020] [Indexed: 11/08/2022] Open
Abstract
The synthesis of solid acids with strong zeolite-like acidity and textural properties like amorphous aluminosilicates (ASAs) is still a challenge. In this work, we report the synthesis of amorphous "acidic aluminosilicates (AAS)", which possesses Brønsted acidic sites like in zeolites and textural properties like ASAs. AAS catalyzes different reactions (styrene oxide ring-opening, vesidryl synthesis, Friedel-Crafts alkylation, jasminaldehyde synthesis, m-xylene isomerization, and cumene cracking) with better performance than state-of-the-art zeolites and amorphous aluminosilicates. Notably, AAS efficiently converts a range of waste plastics to hydrocarbons at significantly lower temperatures. A Cu-Zn-Al/AAS hybrid shows excellent performance for CO2 to fuel conversion with 79% selectivity for dimethyl ether. Conventional and DNP-enhanced solid-state NMR provides a molecular-level understanding of the distinctive Brønsted acidic sites of these materials. Due to their unique combination of strong acidity and accessibility, AAS will be a potential alternative to zeolites.
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10
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Keshtegar Z, Heydari R, Samzadeh-Kermani A. Organo-catalytic synthesis of oxathians from isocyanides, isothiocyanates, and oxiranes. J Sulphur Chem 2020. [DOI: 10.1080/17415993.2020.1797742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Zahra Keshtegar
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Reza Heydari
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
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11
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Hu Y, Peglow S, Longwitz L, Frank M, Epping JD, Brüser V, Werner T. Plasma-Assisted Immobilization of a Phosphonium Salt and Its Use as a Catalyst in the Valorization of CO 2. CHEMSUSCHEM 2020; 13:1825-1833. [PMID: 31999074 PMCID: PMC7186948 DOI: 10.1002/cssc.201903384] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/27/2020] [Indexed: 06/10/2023]
Abstract
The first plasma-assisted immobilization of an organocatalyst, namely a bifunctional phosphonium salt in an amorphous hydrogenated carbon coating, is reported. This method makes the requirement for prefunctionalized supports redundant. The immobilized catalyst was characterized by solid-state 13 C and 31 P NMR spectroscopy, SEM, and energy-dispersive X-ray spectroscopy. The immobilized catalyst (1 mol %) was employed in the synthesis of cyclic carbonates from epoxides and CO2 . Notably, the efficiency of the plasma-treated catalyst on SiO2 was higher than those of the SiO2 support impregnated with the catalyst and even the homogeneous counterpart. After optimization of the reaction conditions, 13 terminal and four internal epoxides were converted with CO2 to the respective cyclic carbonates in yields of up to 99 %. Furthermore, the possibility to recycle the immobilized catalyst was evaluated. Even though the catalyst could be reused, the yields gradually decreased from the third run. However, this is the first example of the recycling of a plasma-immobilized catalyst, which opens new possibilities in the recovery and reuse of catalysts.
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Affiliation(s)
- Yuya Hu
- Leibniz-Institute for Catalysis at the University of RostockAlbert-Einstein-Strasse 29a18059RostockGermany
| | - Sandra Peglow
- Leibniz-Institute for Plasma Science and Technology (INP)Felix-Hausdorff-Strasse 217489GreifswaldGermany
| | - Lars Longwitz
- Leibniz-Institute for Catalysis at the University of RostockAlbert-Einstein-Strasse 29a18059RostockGermany
| | - Marcus Frank
- Medical Biology and Electron Microscopy CenterUniversity Medicine RostockStremelstrasse 1418057RostockGermany
- Department Life, Light & MatterUniversity of RostockAlbert-Einstein-Strasse 2518059RostockGermany
| | - Jan Dirk Epping
- Institute of ChemistryTechnical University of BerlinStrasse des 17 Juni 13510623BerlinGermany
| | - Volker Brüser
- Leibniz-Institute for Plasma Science and Technology (INP)Felix-Hausdorff-Strasse 217489GreifswaldGermany
| | - Thomas Werner
- Leibniz-Institute for Catalysis at the University of RostockAlbert-Einstein-Strasse 29a18059RostockGermany
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12
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Shi Y, Li S, Lu Y, Zhao Z, Li P, Xu J. Microwave-assisted organic acid–base-co-catalyzed tandem Meinwald rearrangement and annulation of styrylepoxides. Chem Commun (Camb) 2020; 56:2131-2134. [DOI: 10.1039/c9cc09262e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A microwave-assisted acid and base co-catalyzed strategy shows very high efficiency in the tandem reaction for the conversion of styrylepoxides into [1,1′-biaryl]-3-carbaldehydes.
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Affiliation(s)
- Yi Shi
- State Key Laboratory of Chemical Resource Engineering
- Department of Organic Chemistry
- Faculty of Science
- Beijing University of Chemical Technology
- Beijing 100029
| | - Siqi Li
- State Key Laboratory of Chemical Resource Engineering
- Department of Organic Chemistry
- Faculty of Science
- Beijing University of Chemical Technology
- Beijing 100029
| | - Yang Lu
- State Key Laboratory of Chemical Resource Engineering
- Department of Organic Chemistry
- Faculty of Science
- Beijing University of Chemical Technology
- Beijing 100029
| | - Zizhen Zhao
- State Key Laboratory of Chemical Resource Engineering
- Department of Organic Chemistry
- Faculty of Science
- Beijing University of Chemical Technology
- Beijing 100029
| | - Pingfan Li
- State Key Laboratory of Chemical Resource Engineering
- Department of Organic Chemistry
- Faculty of Science
- Beijing University of Chemical Technology
- Beijing 100029
| | - Jiaxi Xu
- State Key Laboratory of Chemical Resource Engineering
- Department of Organic Chemistry
- Faculty of Science
- Beijing University of Chemical Technology
- Beijing 100029
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13
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Xu C, Xu J. BF3·OEt2-promoted tandem Meinwald rearrangement and nucleophilic substitution of oxiranecarbonitriles. Org Biomol Chem 2020; 18:127-134. [DOI: 10.1039/c9ob02428j] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Introducing a cyano leaving group into epoxides results in BF3·OEt2-promoted tandem Meinwald rearrangement and nucleophilic substitution to synthesize arylacetic derivatives from vicinal arylcyanoepoxides.
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Affiliation(s)
- Chuangchuang Xu
- State Key Laboratory of Chemical Resource Engineering
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
| | - Jiaxi Xu
- State Key Laboratory of Chemical Resource Engineering
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
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14
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Fingerhut A, Vargas-Caporali J, Leyva-Ramírez MA, Juaristi E, Tsogoeva SB. Biomimetic Non-Heme Iron-Catalyzed Epoxidation of Challenging Terminal Alkenes Using Aqueous H2O2 as an Environmentally Friendly Oxidant. Molecules 2019; 24:molecules24173182. [PMID: 31480640 PMCID: PMC6749192 DOI: 10.3390/molecules24173182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/20/2019] [Accepted: 08/23/2019] [Indexed: 11/21/2022] Open
Abstract
Catalysis mediated by iron complexes is emerging as an eco-friendly and inexpensive option in comparison to traditional metal catalysis. The epoxidation of alkenes constitutes an attractive application of iron(III) catalysis, in which terminal olefins are challenging substrates. Herein, we describe our study on the design of biomimetic non-heme ligands for the in situ generation of iron(III) complexes and their evaluation as potential catalysts in epoxidation of terminal olefins. Since it is well-known that active sites of oxidases might involve imidazole fragment of histidine, various simple imidazole derivatives (seven compounds) were initially evaluated in order to find the best reaction conditions and to develop, subsequently, more elaborated amino acid-derived peptide-like chiral ligands (10 derivatives) for enantioselective epoxidations.
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Affiliation(s)
- Anja Fingerhut
- Department of Chemistry and Pharmacy, Institute of Organic Chemistry I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander University Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Jorge Vargas-Caporali
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados, Av. Instituto Politécnico Nacional 2508, 07360 Ciudad de México, Mexico
| | - Marco Antonio Leyva-Ramírez
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados, Av. Instituto Politécnico Nacional 2508, 07360 Ciudad de México, Mexico
| | - Eusebio Juaristi
- Department of Chemistry, Centro de Investigación y de Estudios Avanzados, Av. Instituto Politécnico Nacional 2508, 07360 Ciudad de México, Mexico.
- El Colegio Nacional, Donceles # 104, Centro Histórico, 06020 Ciudad de México, Mexico.
| | - Svetlana B Tsogoeva
- Department of Chemistry and Pharmacy, Institute of Organic Chemistry I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander University Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany.
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15
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Cabré A, Cabezas‐Giménez J, Sciortino G, Ujaque G, Verdaguer X, Lledós A, Riera A. Mild Iridium‐Catalysed Isomerization of Epoxides. Computational Insights and Application to the Synthesis of β‐Alkyl Amines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900372] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Albert Cabré
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Juanjo Cabezas‐Giménez
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Giuseppe Sciortino
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
- Dipt. di Chimica e FarmaciaUniversità di Sassari, via Vienna 2 I-07017 Sassari Italy
| | - Gregori Ujaque
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
| | - Xavier Verdaguer
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Agustí Lledós
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
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16
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Tam CM, Chan KS. Regio-selective metalloradical catalyzed carbon oxygen bond cleavage of epoxides with rhodium porphyrin hydride. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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17
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Davies T, Taylor SH, Graham AE. Nanoporous Aluminosilicate-Catalyzed Telescoped Acetalization-Direct Aldol Reactions of Acetals with 1,3-Dicarbonyl Compounds. ACS OMEGA 2018; 3:15482-15491. [PMID: 31458204 PMCID: PMC6644119 DOI: 10.1021/acsomega.8b02047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 11/01/2018] [Indexed: 05/11/2023]
Abstract
Nanoporous aluminosilicate materials, synthesized by an evaporation-induced self-assembly process, catalyze the direct aldol reaction of acyclic acetals with a range of 1,3-dicarbonyl compounds to produce the corresponding aldol addition products in high yield, rather than the expected Knoevenagel elimination products. By carrying out the reaction in the presence of either dimethoxy propane or the corresponding orthoester, it is possible to capitalize on the ability of these aluminosilicate materials to catalyze the corresponding acetalization reaction leading to the development of novel telescoped, acetalization-direct aldol addition reaction protocols.
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Affiliation(s)
- Thomas
Edward Davies
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building,
Park Place, Cardiff CF10 3AT, U.K.
| | - Stuart Hamilton Taylor
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building,
Park Place, Cardiff CF10 3AT, U.K.
| | - Andrew Edward Graham
- School
of Applied Sciences, University of South
Wales, Pontypridd CF37 4AT, U.K.
- E-mail:
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18
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Alfonzo E, Mendoza JWL, Beeler AB. One-pot synthesis of epoxides from benzyl alcohols and aldehydes. Beilstein J Org Chem 2018; 14:2308-2312. [PMID: 30254694 PMCID: PMC6142752 DOI: 10.3762/bjoc.14.205] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 08/21/2018] [Indexed: 11/23/2022] Open
Abstract
A one-pot synthesis of epoxides from commercially available benzyl alcohols and aldehydes is described. The reaction proceeds through in situ generation of sulfonium salts from benzyl alcohols and their subsequent deprotonation for use in Corey–Chaykovsky epoxidation of aldehydes. The generality of the method is exemplified by the synthesis of 34 epoxides that were made from an array of electronically and sterically varied alcohols and aldehydes.
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Affiliation(s)
- Edwin Alfonzo
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Jesse W L Mendoza
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Aaron B Beeler
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
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19
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Yuan C, Li J, Li P. Chiral Pentacarboxycyclopentadiene-Based Brønsted Acid-Catalyzed Enantioselective Desymmetrization of Meso-Epoxides by 2-Mercaptobenzothiazoles. ACS OMEGA 2018; 3:6820-6826. [PMID: 31458851 PMCID: PMC6644688 DOI: 10.1021/acsomega.8b01207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 06/13/2018] [Indexed: 06/10/2023]
Abstract
Enantioselective desymmetrization of meso-epoxides by 2-mercaptobenzothiazoles was realized by using the pentacarboxycyclopentadiene-based chiral Brønsted acid in combination of N-isopropylaniline as amine additive to give up to 90.5:9.5 er of the ring opening products.
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20
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Shetty M, Huang H, Kang JY. Regioselective Synthesis of α- and γ-Amino Quinolinyl Phosphonamides Using N-Heterocyclic Phosphines (NHPs). Org Lett 2018; 20:700-703. [DOI: 10.1021/acs.orglett.7b03829] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Manasa Shetty
- Department of Chemistry and
Biochemistry, University of Nevada Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
| | - Hai Huang
- Department of Chemistry and
Biochemistry, University of Nevada Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
| | - Jun Yong Kang
- Department of Chemistry and
Biochemistry, University of Nevada Las Vegas, 4505 South Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
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21
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Çakıcı M, Kılıç H, Ulukanlı S, Ekinci D. Evidence for involvement of cationic intermediate in epoxidation of chiral allylic alcohols and unfunctionalised alkenes catalysed by MnIII(quinazolinone) complexes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Porous polymeric hollow fibers as bifunctional catalysts for CO2 conversion to cyclic carbonates. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.09.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Wang T, Jing X, Chen C, Yu L. Organoselenium-Catalyzed Oxidative C═C Bond Cleavage: A Relatively Green Oxidation of Alkenes into Carbonyl Compounds with Hydrogen Peroxide. J Org Chem 2017; 82:9342-9349. [DOI: 10.1021/acs.joc.7b01245] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Tingting Wang
- School of Chemistry and Chemical
Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Xiaobi Jing
- School of Chemistry and Chemical
Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Chao Chen
- School of Chemistry and Chemical
Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Lei Yu
- School of Chemistry and Chemical
Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
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24
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Umeda R, Muraki M, Nakamura Y, Tanaka T, Kamiguchi K, Nishiyama Y. Rhenium complex-catalyzed Meinwald rearrangement reactions of oxiranes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Affiliation(s)
- Xin Liu
- Institute
of Chinese Medical Sciences, University of Macau, Macao, China
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Junyang Liu
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Jing Zhao
- Institute
of Chinese Medical Sciences, University of Macau, Macao, China
| | - Shaoping Li
- Institute
of Chinese Medical Sciences, University of Macau, Macao, China
| | - Chuang-Chuang Li
- Institute
of Chinese Medical Sciences, University of Macau, Macao, China
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
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26
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Zirconium triflate grafted on SBA-15 as a highly efficient solid acid catalyst for ring opening of epoxides by amines and alcohols. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62794-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Tiddens MR, Klein Gebbink RJM, Otte M. The B(C6F5)3-Catalyzed Tandem Meinwald Rearrangement–Reductive Amination. Org Lett 2016; 18:3714-7. [DOI: 10.1021/acs.orglett.6b01744] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Martine R. Tiddens
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Universiteit Utrecht, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Robertus J. M. Klein Gebbink
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Universiteit Utrecht, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Matthias Otte
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Universiteit Utrecht, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
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28
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Abstract
A high yielding synthesis of stilbene oxides using ammonium ylides has been developed. It turned out that the amine leaving group plays a crucial role as trimethylamine gives higher yields than DABCO or quinuclidine. The amine group also influences the diastereoselectivity, and detailed DFT calculations to understand the key parameters of these reactions have been carried out.
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Affiliation(s)
- Lukas Roiser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040 Linz, Austria
| | - Raphaël Robiette
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 box L4.01.02, 1348 Louvain-la-Neuve, Belgium
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040 Linz, Austria
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29
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Min BH, Kim DS, Park HS, Jun CH. Pd/C-Catalyzed Carbonylative Esterification of Aryl Halides with Alcohols by Using Oxiranes as CO Sources. Chemistry 2016; 22:6234-8. [DOI: 10.1002/chem.201600570] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Byul-Hana Min
- Department of Chemistry; Yonsei University; 50 Yonsei-ro, Seodaemun-gu Seoul 120-749 Republic of Korea
| | - Dong-Su Kim
- Department of Chemistry; Yonsei University; 50 Yonsei-ro, Seodaemun-gu Seoul 120-749 Republic of Korea
| | - Hyo-Soon Park
- Department of Chemistry; Yonsei University; 50 Yonsei-ro, Seodaemun-gu Seoul 120-749 Republic of Korea
| | - Chul-Ho Jun
- Department of Chemistry; Yonsei University; 50 Yonsei-ro, Seodaemun-gu Seoul 120-749 Republic of Korea
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30
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Caneva T, Sperni L, Strukul G, Scarso A. Efficient epoxide isomerization within a self-assembled hexameric organic capsule. RSC Adv 2016. [DOI: 10.1039/c6ra20271c] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The supramolecular organic nano-capsule formed by the self-assembly of six resorcin[4]arene units efficiently promotes the isomerization of epoxides (Meinwald isomerization) to the corresponding carbonyl compounds.
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Affiliation(s)
- Thomas Caneva
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari di Venezia
- Mestre (VE)
- 30172 Italy
| | - Laura Sperni
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari di Venezia
- Mestre (VE)
- 30172 Italy
| | - Giorgio Strukul
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari di Venezia
- Mestre (VE)
- 30172 Italy
| | - Alessandro Scarso
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari di Venezia
- Mestre (VE)
- 30172 Italy
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31
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McLeod DC, Tsarevsky NV. Well-defined epoxide-containing styrenic polymers and their functionalization with alcohols. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27952] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David C. McLeod
- Department of Chemistry and Center for Drug Discovery, Design, and Delivery at Dedman College; Southern Methodist University; 3215 Daniel Avenue Dallas Texas 75275
| | - Nicolay V. Tsarevsky
- Department of Chemistry and Center for Drug Discovery, Design, and Delivery at Dedman College; Southern Methodist University; 3215 Daniel Avenue Dallas Texas 75275
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32
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Counteranion effects on the catalytic activity of copper salts immobilized on the 2,2′-bipyridine-functionalized metal–organic framework MOF-253. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.08.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Graphite oxide: a simple and efficient solid acid catalyst for the ring-opening of epoxides by alcohols. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.050] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Rodríguez-Gimeno A, Cuenca AB, Gil-Tomás J, Medio-Simón M, Olmos A, Asensio G. FeCl3·6H2O-Catalyzed Mukaiyama-Aldol Type Reactions of Enolizable Aldehydes and Acetals. J Org Chem 2014; 79:8263-70. [DOI: 10.1021/jo501498a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Alejandra Rodríguez-Gimeno
- Departamento
de Química Orgánica, Universidad de Valencia, Avda. Vicente Andrés
Estellés, s/n 46100 Burjassot, Valencia, Spain
| | - Ana B. Cuenca
- Departamento
de Química Orgánica, Universidad de Valencia, Avda. Vicente Andrés
Estellés, s/n 46100 Burjassot, Valencia, Spain
| | - Jesús Gil-Tomás
- Departamento
de Química Orgánica, Universidad de Valencia, Avda. Vicente Andrés
Estellés, s/n 46100 Burjassot, Valencia, Spain
| | - Mercedes Medio-Simón
- Departamento
de Química Orgánica, Universidad de Valencia, Avda. Vicente Andrés
Estellés, s/n 46100 Burjassot, Valencia, Spain
| | - Andrea Olmos
- Laboratorio
de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro
de Investigación en Química Sostenible, Universidad de Huelva, Campus El Carmen, 21007 Huelva, Spain
| | - Gregorio Asensio
- Departamento
de Química Orgánica, Universidad de Valencia, Avda. Vicente Andrés
Estellés, s/n 46100 Burjassot, Valencia, Spain
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35
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36
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Luo T, Zhang R, Zhang W, Shen X, Umemoto T, Hu J. Divergent Rearrangements of Cyclopropyl-Substituted Fluoroepoxides Involving C–F Bond Cleavage and Formation. Org Lett 2014; 16:888-91. [DOI: 10.1021/ol403644n] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tao Luo
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Rui Zhang
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Wei Zhang
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Xiao Shen
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Teruo Umemoto
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Jinbo Hu
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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37
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Phillips DJ, Kean JL, Graham AE. Sequential- and tandem-oxidation–epoxidation reactions employing guanidine bases. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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38
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Chen Z, Xiao Y, Zhang J. Reaction of Two Differently Functionalized Oxiranes with Nickel Perchlorate: A Modular Entry to Highly Substituted 1,3-Dioxolanes. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300558] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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40
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Smith BM, Kubczyk TM, Graham AE. Indium(III) triflate catalysed transacetalisation reactions of diols and triols under solvent-free conditions. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Bruno SM, Gamelas CA, Gomes AC, Valente AA, Pillinger M, Romão CC, Gonçalves IS. Isomerisation of α-pinene oxide in the presence of indenyl allyl dicarbonyl molybdenum(II) and tungsten(II) complexes. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2012.03.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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42
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Luque R, Mariana Balu A, Manuel Campelo J, Dolores Gracia M, Losada E, Pineda A, Angel Romero A, Carlos Serrano-Ruiz J. Catalytic applications of mesoporous silica-based materials. CATALYSIS 2012. [DOI: 10.1039/9781849734776-00253] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Mesoporous materials featuring high surface areas (>600m2g−1), narrow pore size distribution and tuneable pores diameters (>2nm), have attracted a great deal of attention in recent years due to their promising properties and applications in various areas including adsorption, separation, drug delivery, sensing and catalysis. Catalytic applications of such materials have been extended to numerous processes and reactions which range from acid catalysis (alkylations, acylations, esterifications, biodiesel production, etc.) to redox chemistries (oxidation of alcohols, alkenes, sulfides and hydrogenations of acids, aldehydes and ketones and alkenes/alkynes). In this chapter, we aim to provide an overview on the utilisation of mesoporous materials in heterogeneous catalysis, with special emphasis on acid and redox catalysed processes.
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Affiliation(s)
- Rafael Luque
- Departamento de Quimica Organica Universidad de Cordoba, Facultad de Ciencias, Campus de Rabanales Edificio Marie Curie, Ctra. Nnal IV-A, Km. 396, E14014, Cordoba Spain. *
| | - Alina Mariana Balu
- Departamento de Quimica Organica Universidad de Cordoba, Facultad de Ciencias, Campus de Rabanales Edificio Marie Curie, Ctra. Nnal IV-A, Km. 396, E14014, Cordoba Spain. *
| | - Juan Manuel Campelo
- Departamento de Quimica Organica Universidad de Cordoba, Facultad de Ciencias, Campus de Rabanales Edificio Marie Curie, Ctra. Nnal IV-A, Km. 396, E14014, Cordoba Spain. *
| | - Maria Dolores Gracia
- Departamento de Quimica Organica Universidad de Cordoba, Facultad de Ciencias, Campus de Rabanales Edificio Marie Curie, Ctra. Nnal IV-A, Km. 396, E14014, Cordoba Spain. *
| | - Elia Losada
- Departamento de Quimica Organica Universidad de Cordoba, Facultad de Ciencias, Campus de Rabanales Edificio Marie Curie, Ctra. Nnal IV-A, Km. 396, E14014, Cordoba Spain. *
| | - Antonio Pineda
- Departamento de Quimica Organica Universidad de Cordoba, Facultad de Ciencias, Campus de Rabanales Edificio Marie Curie, Ctra. Nnal IV-A, Km. 396, E14014, Cordoba Spain. *
| | - Antonio Angel Romero
- Departamento de Quimica Organica Universidad de Cordoba, Facultad de Ciencias, Campus de Rabanales Edificio Marie Curie, Ctra. Nnal IV-A, Km. 396, E14014, Cordoba Spain. *
| | - Juan Carlos Serrano-Ruiz
- Departamento de Quimica Organica Universidad de Cordoba, Facultad de Ciencias, Campus de Rabanales Edificio Marie Curie, Ctra. Nnal IV-A, Km. 396, E14014, Cordoba Spain. *
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43
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Fan L, Zhang M, Zhang S. An efficient synthetic method for allyl-epoxides via allylation of α-haloketones or esters with allylmagnesium bromide. Org Biomol Chem 2012; 10:3182-4. [DOI: 10.1039/c2ob00051b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Yip L, Kubczyk TM, Davies TE, Taylor SH, Apperley DC, Graham AE. Nanoporous aluminosilicate mediated transacetalization reactions: application in glycerol valorization. Catal Sci Technol 2012. [DOI: 10.1039/c2cy20188g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Srirambalaji R, Hong S, Natarajan R, Yoon M, Hota R, Kim Y, Ho Ko Y, Kim K. Tandem catalysis with a bifunctional site-isolated Lewis acid–Brønsted base metal–organic framework, NH2-MIL-101(Al). Chem Commun (Camb) 2012; 48:11650-2. [DOI: 10.1039/c2cc36678a] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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46
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Smith BM, Kubczyk TM, Graham AE. Metal triflate catalysed acetal exchange reactions of glycerol under solvent-free conditions. RSC Adv 2012. [DOI: 10.1039/c2ra20100c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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47
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Sengoden M, Punniyamurthy T. Role of temperature in [3+2]-cycloaddition of isoselenocyanates with oxiranes using BF3·Et2O. RSC Adv 2012. [DOI: 10.1039/c2ra00042c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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48
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Smith BM, Graham AE. Indium triflate mediated tandem acetalisation-acetal exchange reactions under solvent-free conditions. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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49
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Efficient oxidation-Wittig olefination-Diels–Alder multicomponent reactions of α-hydroxyketones. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.10.121] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Romano F, Linden A, Mba M, Zonta C, Licini G. Molybdenum(VI) Amino Triphenolate Complexes as Catalysts for Sulfoxidation, Epoxidation and Haloperoxidation. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000496] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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