1
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Liu F, Qu P, Weiss J, Guo K, Weck M. Substrate Channeling in Compartmentalized Nanoreactors. Macromolecules 2024; 57:6805-6815. [PMID: 39071043 PMCID: PMC11270995 DOI: 10.1021/acs.macromol.4c00697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/28/2024] [Accepted: 06/18/2024] [Indexed: 07/30/2024]
Abstract
Thermo- and photoresponsive nanoreactors based on shell cross-linked micelles (SCMs) for the rhodium-catalyzed asymmetric transfer hydrogenation (ATH) of ketones have been developed from poly(2-oxazoline) triblock terpolymers. The nanoreactors incorporate thermoresponsive poly(2-isopropyl-2-oxazoline) as the hydrophilic corona and are covalently cross-linked with a photoswitchable spiropyran molecule. UV irradiation or changes in temperature trigger morphology switching of the polymer-based nanoreactors that alters the hydrophobicity in separate layers of the SCMs, resulting in dynamic substrate selectivity of the ATH in water. Control experiments and kinetic studies show that the thermoresponsive outer layer induces the gated behavior for more hydrophobic substrates, whereas the photoresponsive cross-linking layer induces the gated behavior for less hydrophobic substrates. The nanoreactors mimic the multichannels in Nature, transporting substrates and reagents into the catalytic core which can be controlled through external triggers such as temperature and light wavelengths. Additionally, the nanoreactors can be easily recovered and reused with continued high activity and selectivities.
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Affiliation(s)
- Fangbei Liu
- Molecular Design Institute and Department
of Chemistry, New York University, New York, New York 10003-6688, United
States
| | | | - Jeremy Weiss
- Molecular Design Institute and Department
of Chemistry, New York University, New York, New York 10003-6688, United
States
| | - Kunhao Guo
- Molecular Design Institute and Department
of Chemistry, New York University, New York, New York 10003-6688, United
States
| | - Marcus Weck
- Molecular Design Institute and Department
of Chemistry, New York University, New York, New York 10003-6688, United
States
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2
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Sedlář A, Vrbata D, Pokorná K, Holzerová K, Červený J, Kočková O, Hlaváčková M, Doubková M, Musílková J, Křen V, Kolář F, Bačáková L, Bojarová P. Glycopolymer Inhibitors of Galectin-3 Suppress the Markers of Tissue Remodeling in Pulmonary Hypertension. J Med Chem 2024; 67:9214-9226. [PMID: 38829964 PMCID: PMC11181325 DOI: 10.1021/acs.jmedchem.4c00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/16/2024] [Accepted: 05/24/2024] [Indexed: 06/05/2024]
Abstract
Pulmonary hypertension is a cardiovascular disease with a low survival rate. The protein galectin-3 (Gal-3) binding β-galactosides of cellular glycoproteins plays an important role in the onset and development of this disease. Carbohydrate-based drugs that target Gal-3 represent a new therapeutic strategy in the treatment of pulmonary hypertension. Here, we present the synthesis of novel hydrophilic glycopolymer inhibitors of Gal-3 based on a polyoxazoline chain decorated with carbohydrate ligands. Biolayer interferometry revealed a high binding affinity of these glycopolymers to Gal-3 in the subnanomolar range. In the cell cultures of cardiac fibroblasts and pulmonary artery smooth muscle cells, the most potent glycopolymer 18 (Lac-high) caused a decrease in the expression of markers of tissue remodeling in pulmonary hypertension. The glycopolymers were shown to penetrate into the cells. In a biodistribution and pharmacokinetics study in rats, the glycopolymers accumulated in heart and lung tissues, which are most affected by pulmonary hypertension.
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Affiliation(s)
- Antonín Sedlář
- Laboratory
of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - David Vrbata
- Laboratory
of Biotransformation, Institute of Microbiology
of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - Kateřina Pokorná
- Laboratory
of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - Kristýna Holzerová
- Laboratory
of Developmental Cardiology, Institute of
Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - Jakub Červený
- Laboratory
of Biotransformation, Institute of Microbiology
of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
- Department
of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2 CZ-128
43, Czech Republic
| | - Olga Kočková
- Laboratory
of Analytical Chemistry, Institute of Macromolecular
Chemistry of the Czech Academy of Sciences, Heyrovského nám. 1888, Prague 6 CZ-162 00, Czech Republic
| | - Markéta Hlaváčková
- Laboratory
of Developmental Cardiology, Institute of
Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - Martina Doubková
- Laboratory
of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - Jana Musílková
- Laboratory
of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - Vladimír Křen
- Laboratory
of Biotransformation, Institute of Microbiology
of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - František Kolář
- Laboratory
of Developmental Cardiology, Institute of
Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - Lucie Bačáková
- Laboratory
of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
| | - Pavla Bojarová
- Laboratory
of Biotransformation, Institute of Microbiology
of the Czech Academy of Sciences, Vídeňská 1083, Prague 4 CZ-142 00, Czech Republic
- Department
of Health Care Disciplines and Population Protection, Faculty of Biomedical
Engineering, Czech Technical University
in Prague, nám.
Sítná 3105, Kladno CZ-272 01, Czech Republic
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3
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Dehbanipour Z, Mongashti A. The efficient heterogeneous catalyst containing copper (II) bis-benzothiazole complex supported on functionalized magnetic nanoparticles used for epoxidation of alkenes with tert-BuOOH. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Tang C, McInnes BT. Cascade Processes with Micellar Reaction Media: Recent Advances and Future Directions. Molecules 2022; 27:molecules27175611. [PMID: 36080376 PMCID: PMC9458028 DOI: 10.3390/molecules27175611] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/26/2022] Open
Abstract
Reducing the use of solvents is an important aim of green chemistry. Using micelles self-assembled from amphiphilic molecules dispersed in water (considered a green solvent) has facilitated reactions of organic compounds. When performing reactions in micelles, the hydrophobic effect can considerably accelerate apparent reaction rates, as well as enhance selectivity. Here, we review micellar reaction media and their potential role in sustainable chemical production. The focus of this review is applications of engineered amphiphilic systems for reactions (surface-active ionic liquids, designer surfactants, and block copolymers) as reaction media. Micelles are a versatile platform for performing a large array of organic chemistries using water as the bulk solvent. Building on this foundation, synthetic sequences combining several reaction steps in one pot have been developed. Telescoping multiple reactions can reduce solvent waste by limiting the volume of solvents, as well as eliminating purification processes. Thus, in particular, we review recent advances in “one-pot” multistep reactions achieved using micellar reaction media with potential applications in medicinal chemistry and agrochemistry. Photocatalyzed reactions in micellar reaction media are also discussed. In addition to the use of micelles, we emphasize the process (steps to isolate the product and reuse the catalyst).
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Affiliation(s)
- Christina Tang
- Chemical and Life Science Engineering Department, Virginia Commonwealth University, Richmond, VA 23284, USA
- Correspondence:
| | - Bridget T. McInnes
- Computer Science Department, Virginia Commonwealth University, Richmond, VA 23284, USA
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5
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Ultrafast spectroscopic investigation of discrete co-assemblies of a Zn-porphyrin–polymer conjugate with a hexapyridyl template. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Qu P, Kuepfert M, Ahmed E, Liu F, Weck M. Cross‐Linked Polymeric Micelles as Catalytic Nanoreactors. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100013] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Peiyuan Qu
- Molecular Design Institute and Department of Chemistry New York University 100 Washington Square East New York, NY 10003 USA
| | - Michael Kuepfert
- Molecular Design Institute and Department of Chemistry New York University 100 Washington Square East New York, NY 10003 USA
| | - Eman Ahmed
- Molecular Design Institute and Department of Chemistry New York University 100 Washington Square East New York, NY 10003 USA
| | - Fangbei Liu
- Molecular Design Institute and Department of Chemistry New York University 100 Washington Square East New York, NY 10003 USA
| | - Marcus Weck
- Molecular Design Institute and Department of Chemistry New York University 100 Washington Square East New York, NY 10003 USA
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8
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Zou W, Guo Y, Li P, Liu M, Hou L. Bimetallic‐organic Frameworks CoMo‐ZIF‐67: An Efficient and Stable Catalyst for Selective Oxidation of Alkenes. ChemCatChem 2020. [DOI: 10.1002/cctc.202001368] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Wenhong Zou
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Yingxiong Guo
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Pan Li
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Mengying Liu
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Linxi Hou
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
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9
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Nghiem TL, Coban D, Tjaberings S, Gröschel AH. Recent Advances in the Synthesis and Application of Polymer Compartments for Catalysis. Polymers (Basel) 2020; 12:E2190. [PMID: 32987965 PMCID: PMC7600123 DOI: 10.3390/polym12102190] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 12/23/2022] Open
Abstract
Catalysis is one of the most important processes in nature, science, and technology, that enables the energy efficient synthesis of essential organic compounds, pharmaceutically active substances, and molecular energy sources. In nature, catalytic reactions typically occur in aqueous environments involving multiple catalytic sites. To prevent the deactivation of catalysts in water or avoid unwanted cross-reactions, catalysts are often site-isolated in nanopockets or separately stored in compartments. These concepts have inspired the design of a range of synthetic nanoreactors that allow otherwise unfeasible catalytic reactions in aqueous environments. Since the field of nanoreactors is evolving rapidly, we here summarize-from a personal perspective-prominent and recent examples for polymer nanoreactors with emphasis on their synthesis and their ability to catalyze reactions in dispersion. Examples comprise the incorporation of catalytic sites into hydrophobic nanodomains of single chain polymer nanoparticles, molecular polymer nanoparticles, and block copolymer micelles and vesicles. We focus on catalytic reactions mediated by transition metal and organocatalysts, and the separate storage of multiple catalysts for one-pot cascade reactions. Efforts devoted to the field of nanoreactors are relevant for catalytic chemistry and nanotechnology, as well as the synthesis of pharmaceutical and natural compounds. Optimized nanoreactors will aid in the development of more potent catalytic systems for green and fast reaction sequences contributing to sustainable chemistry by reducing waste of solvents, reagents, and energy.
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Affiliation(s)
| | | | | | - André H. Gröschel
- Physical Chemistry and Centre for Soft Nanoscience (SoN), University of Münster, 48149 Münster, Germany; (T.-L.N.); (D.C.); (S.T.)
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10
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Chen T, Xu Z, Zhou L, Qiu J, Wang M, Wang J. Highly efficient polymer-based nanoreactors for selective oxidation of alcohols in water. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110422] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Škopić MK, Götte K, Gramse C, Dieter M, Pospich S, Raunser S, Weberskirch R, Brunschweiger A. Micellar Brønsted Acid Mediated Synthesis of DNA-Tagged Heterocycles. J Am Chem Soc 2019; 141:10546-10555. [PMID: 31244181 DOI: 10.1021/jacs.9b05696] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The translation of well-established molecular biology methods such as genetic coding, selection, and DNA sequencing to combinatorial organic chemistry and compound identification has made extremely large compound collections, termed DNA-encoded libraries, accessible for drug screening. However, the reactivity of the DNA imposes limitations on the choice of chemical methods for encoded library synthesis. For example, strongly acidic reaction conditions must be avoided because they damage the DNA by depurination, i.e. the cleavage of purine bases from the oligomer. Application of micellar catalysis holds much promise for encoded chemistry. Aqueous micellar dispersions enabled compound synthesis under often appealingly mild conditions. Amphiphilic block copolymers covalently functionalized with sulfonic acid moieties in the lipophilic portion assemble in water and locate the Brønsted catalyst in micelles. These acid nanoreactors enabled the reaction of DNA-conjugated aldehydes to diverse substituted tetrahydroquinolines and aminoimidazopyridines by Povarov and Groebke-Blackburn-Bienaymé reactions, respectively, and the cleavage of tBoc protective groups from amines. The polymer micelle design was successfully translated to the Cu/Bipyridine/TEMPO system mediating the oxidation of DNA-coupled alcohols to the corresponding aldehydes. These results suggest a potentially broad applicability of polymer micelles for encoded chemistry.
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Affiliation(s)
- M Klika Škopić
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Straße 6 , 44227 Dortmund , Germany
| | - K Götte
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Straße 6 , 44227 Dortmund , Germany
| | - C Gramse
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Straße 6 , 44227 Dortmund , Germany
| | - M Dieter
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Straße 6 , 44227 Dortmund , Germany
| | - S Pospich
- Max Planck Institute of Molecular Physiology , Otto-Hahn-Straße 11 , 44227 Dortmund , Germany
| | - S Raunser
- Max Planck Institute of Molecular Physiology , Otto-Hahn-Straße 11 , 44227 Dortmund , Germany
| | - R Weberskirch
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Straße 6 , 44227 Dortmund , Germany
| | - A Brunschweiger
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Straße 6 , 44227 Dortmund , Germany
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12
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Miyazaki T, Fukuyama K, Mashita S, Deguchi Y, Yamamoto T, Ishida M, Mori S, Furuta H. Ruthenium N-Confused Porphyrins: Selective Reactivity for Ambident 2-Heteroatom-Substituted Pyridines Serving as Axial Ligands. Chempluschem 2019; 84:603-607. [PMID: 31944014 DOI: 10.1002/cplu.201800630] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/30/2019] [Indexed: 11/08/2022]
Abstract
Three types of ruthenium(II) N-confused porphyrin (NCP) complexes bearing an axial 2-thiopyridine, 2-pyridone, and 2-iminopyridine moiety at the inner carbon atom, respectively, were synthesized. The unique reactivity of the 2-substituted pyridine derivatives (2-X-pyridine; X=SH, OH, NH2 ) toward the inner carbon atom of the NCP allows the formation of two types of coordinated products (i. e., pyridine donor versus 2-heteroatom donors), as inferred from single-crystal X-ray structures. The selective reactivity was investigated by using density functional theory (DFT) calculations. Finally, the catalytic activity of these ruthenium complexes was demonstrated through the styrene oxidation reactions. As a result, the ruthenium(II) NCP complex bearing a 2-thiopyridine moiety, together with aqueous H2 O2 as an oxidant showed the highest selectivity for benzaldehyde (benzaldehyde/styrene oxide=20 : 1).
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Affiliation(s)
- Takaaki Miyazaki
- Education Center for Global Leaders in Molecular Systems for Devices, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kazuki Fukuyama
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Shunichi Mashita
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yuya Deguchi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Takaaki Yamamoto
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Masatoshi Ishida
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan.,Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan
| | - Shigeki Mori
- Advanced Research Support Center, Ehime University, Matsuyama, 790-8577, Japan
| | - Hiroyuki Furuta
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan.,Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan
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13
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Palladium nanoparticles supported on UiO-66-NH2 as heterogeneous catalyst for epoxidation of styrene. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2018.12.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Abstract
Epoxides are important industrial intermediates applied in a variety of industrial processes. During the production of epoxides, catalysts have played an irreplaceable and unique role. In this review, the historic progress of molybdenum-based catalysts in alkene epoxidation are covered and an outlook on future challenge discussed. Efficient catalysts are demonstrated including soluble molybdenum complexes, polyoxometalates catalysts, molybdenum-containing metal organic frameworks, silica supported molybdenum-based catalysts, polymer supported molybdenum-based catalysts, magnetic molybdenum-based catalysts, hierarchical molybdenum-based catalysts, graphene-based molybdenum containing catalysts, photocatalyzed epoxidation catalysts, and some other systems. The effects of different solvents and oxidants are discussed and the mechanisms of epoxidation are summarized. The challenges and perspectives to further enhance the catalytic performances in alkenes epoxidation are presented.
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15
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Kuepfert M, Cohen AE, Cullen O, Weck M. Shell Cross-Linked Micelles as Nanoreactors for Enantioselective Three-Step Tandem Catalysis. Chemistry 2018; 24:18648-18652. [PMID: 30276903 DOI: 10.1002/chem.201804956] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Indexed: 02/06/2023]
Abstract
Functionalized amphiphilic poly(2-oxazoline)-based triblock copolymers that assemble into shell cross-linked micelles (SCMs) are described. These micelles permit the site isolation of three incompatible catalysts through compartmentalization, thereby enabling three-step non-orthogonal tandem processes in one pot. In particular, the acid-catalyzed ketal hydrolysis to prochiral ketones proceeded in the hydrophilic corona, followed by the Rh-catalyzed asymmetric transfer hydrogenation to enantio-enriched alcohols in the cross-linked shell, and nucleophilic base-catalyzed acylation in the hydrophobic core. The catalysts are positioned in close proximity on a single micelle support to take advantage of the intramicellar substrate diffusion, yet they are sufficiently spaced apart from each other in physically distinct microenvironments. These compartmentalized micelles are substrate selective and, on a basic level, mimic compartmentalized catalytic architectures found in nature.
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Affiliation(s)
- Michael Kuepfert
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Aaron E Cohen
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Olivia Cullen
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Marcus Weck
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
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16
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Abdulaeva IA, Birin KP, Gorbunova YG, Tsivadze AY, Bessmertnykh-Lemeune A. Post-synthetic methods for functionalization of imidazole-fused porphyrins. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424618500475] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Several methods for the post-synthetic modification of imidazo[4,5-[Formula: see text]]porphyrins are reported. First, a synthetic approach to the isomeric difunctionalized porphyrins, containing two [Formula: see text]-fused 2-aryl-1[Formula: see text]-imidazole cycles at adjacent or opposite pyrrole rings of the macrocycle is developed. The core chemistry of this synthetic route is the transformation of 2-aryl-1[Formula: see text]-imidazo[4,5-[Formula: see text]]porphyrins into corresponding imidazodioxochlorins followed by Debus–Radziszewski condensation with aromatic aldehyde. Next, 2-(4-bromophenyl)-1[Formula: see text]-imidazo[4,5-[Formula: see text]]-5,10,15,20-tetramesitylporphyrin was transformed into useful carboxy- and phosphonato-substituted precursors for material chemistry according to palladium-catalyzed C–C and C–P bond forming reactions.
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Affiliation(s)
- Inna A. Abdulaeva
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Bldg. 4, 119071, Moscow, Russia
- Institut de Chimie Moléculaire de l’Université de Bourgogne, UMR 6302, CNRS, Université, Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21078 Dijon, France
| | - Kirill P. Birin
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Bldg. 4, 119071, Moscow, Russia
| | - Yulia G. Gorbunova
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Bldg. 4, 119071, Moscow, Russia
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr., 31, 119991, Moscow, Russia
| | - Aslan Yu. Tsivadze
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Bldg. 4, 119071, Moscow, Russia
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr., 31, 119991, Moscow, Russia
| | - Alla Bessmertnykh-Lemeune
- Institut de Chimie Moléculaire de l’Université de Bourgogne, UMR 6302, CNRS, Université, Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21078 Dijon, France
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17
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Li YX, Wei ZY, Liu L, Gao ML, Han ZB. Ag nanoparticles supported on UiO-66 for selective oxidation of styrene. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2017.12.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Hisey B, Buddingh JV, Gillies ER, Ragogna PJ. Effect of Counterions on the Self-Assembly of Polystyrene-Polyphosphonium Block Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:14738-14747. [PMID: 29179545 DOI: 10.1021/acs.langmuir.7b03010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ability to manipulate block copolymers on the nanoscale has led to many scientific and technological advances. These include nanoscale ordered bulk and thin films and also solution phase components; these are promising materials for making smaller ordered electronics, selective membranes, and also biomedical applications. The ability to manipulate block copolymer material architectures on such small scales has risen from thorough investigations into the properties that affect the architectures. Polyelectrolytes are an important class of polymers that are used to make amphiphilic block copolymers. In this context the authors synthesized polystyrene-b-polyphosphonium block copolymers with different anions coordinated to the polyphosphonium block in order to study the effect of the anion on the aqueous self-assembly of the polymers. The anions play an important role in the solubility of the monomeric materials which results in differences in the self-assembly observed through dynamic light scattering and transmission electron microscopy.
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Affiliation(s)
- Benjamin Hisey
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research and ‡Department of Chemical and Biochemical Engineering, The University of Western Ontario , 1151 Richmond Street, London, ON, Canada N6A 5B7
| | - Jasmine V Buddingh
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research and ‡Department of Chemical and Biochemical Engineering, The University of Western Ontario , 1151 Richmond Street, London, ON, Canada N6A 5B7
| | - Elizabeth R Gillies
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research and ‡Department of Chemical and Biochemical Engineering, The University of Western Ontario , 1151 Richmond Street, London, ON, Canada N6A 5B7
| | - Paul J Ragogna
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research and ‡Department of Chemical and Biochemical Engineering, The University of Western Ontario , 1151 Richmond Street, London, ON, Canada N6A 5B7
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Kempe K. Chain and Step Growth Polymerizations of Cyclic Imino Ethers: From Poly(2‐oxazoline)s to Poly(ester amide)s. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700021] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kristian Kempe
- ARC Centre of Excellence in Convergent Bio‐Nano Science & Technology Monash Institute of Pharmaceutical Sciences Monash University Parkville VIC 3052 Australia
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(Salen)Mn(III) Catalyzed Asymmetric Epoxidation Reactions by Hydrogen Peroxide in Water: A Green Protocol. Int J Mol Sci 2016; 17:ijms17071112. [PMID: 27420047 PMCID: PMC4964487 DOI: 10.3390/ijms17071112] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/06/2016] [Accepted: 07/08/2016] [Indexed: 11/24/2022] Open
Abstract
Enantioselective epoxidation reactions of some chosen reactive alkenes by a chiral Mn(III) salen catalyst were performed in H2O employing H2O2 as oxidant and diethyltetradecylamine N-oxide (AOE-14) as surfactant. This procedure represents an environmentally benign protocol which leads to e.e. values ranging from good to excellent (up to 95%).
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