1
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Musso JV, Gebel P, Gramm V, Frey W, Buchmeiser MR. Tungsten Oxo and Tungsten Imido Alkylidene N-Heterocyclic Carbene Complexes for the Visible-Light-Induced Ring-Opening Metathesis Polymerization of Dicyclopentadiene. Macromolecules 2023. [DOI: 10.1021/acs.macromol.3c00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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Echizen K, Taniguchi T, Nishimura T, Maeda K. Well‐Controlled Living Polymerization of Phenylacetylenes in Water: Synthesis of Water‐Soluble Stereoregular Telechelic Poly(phenylacetylene)s. Angew Chem Int Ed Engl 2022; 61:e202202676. [DOI: 10.1002/anie.202202676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Indexed: 12/12/2022]
Affiliation(s)
- Kensuke Echizen
- Graduate School of Frontier Science Initiative Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tsuyoshi Taniguchi
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tatsuya Nishimura
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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3
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Echizen K, Taniguchi T, Nishimura T, Maeda K. Well‐Controlled Living Polymerization of Phenylacetylenes in Water: Synthesis of Water‐Soluble Stereoregular Telechelic Poly(phenylacetylene)s. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kensuke Echizen
- Graduate School of Frontier Science Initiative Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tsuyoshi Taniguchi
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tatsuya Nishimura
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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4
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Hernández Becerra E, Quinchia J, Castro C, Orozco J. Light-Triggered Polymersome-Based Anticancer Therapeutics Delivery. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:836. [PMID: 35269324 PMCID: PMC8912464 DOI: 10.3390/nano12050836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 01/25/2023]
Abstract
Polymersomes are biomimetic cell membrane-like model structures that are self-assembled stepwise from amphiphilic copolymers. These polymeric (nano)carriers have gained the scientific community's attention due to their biocompatibility, versatility, and higher stability than liposomes. Their tunable properties, such as composition, size, shape, and surface functional groups, extend encapsulation possibilities to either hydrophilic or hydrophobic cargoes (or both) and their site-specific delivery. Besides, polymersomes can disassemble in response to different stimuli, including light, for controlling the "on-demand" release of cargo that may also respond to light as photosensitizers and plasmonic nanostructures. Thus, polymersomes can be spatiotemporally stimulated by light of a wide wavelength range, whose exogenous response may activate light-stimulable moieties, enhance the drug efficacy, decrease side effects, and, thus, be broadly employed in photoinduced therapy. This review describes current light-responsive polymersomes evaluated for anticancer therapy. It includes light-activable moieties' features and polymersomes' composition and release behavior, focusing on recent advances and applications in cancer therapy, current trends, and photosensitive polymersomes' perspectives.
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Affiliation(s)
- Elisa Hernández Becerra
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (E.H.B.); (J.Q.)
| | - Jennifer Quinchia
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (E.H.B.); (J.Q.)
| | - Cristina Castro
- Engineering School, Pontificia Bolivariana University, Bloque 11, Cq. 1 No. 70-01, Medellín 050004, Colombia;
| | - Jahir Orozco
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (E.H.B.); (J.Q.)
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5
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Matsuo T. Functionalization of Hoveyda-Grubbs-type Complexes for Application to Biomolecules. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Takashi Matsuo
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology
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6
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Saxena S, Kandasubramanian B. Glycopolymers in molecular recognition, biomimicking and glycotechnology: a review. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1900181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shatakshi Saxena
- Centre for Converging Technologies, University of Rajasthan, Jaipur, India
| | - Balasubramanian Kandasubramanian
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Pune, India
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7
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Foster JC, Grocott MC, Arkinstall LA, Varlas S, Redding MJ, Grayson SM, O’Reilly RK. It is Better with Salt: Aqueous Ring-Opening Metathesis Polymerization at Neutral pH. J Am Chem Soc 2020; 142:13878-13885. [PMID: 32673484 PMCID: PMC7426906 DOI: 10.1021/jacs.0c05499] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Indexed: 12/15/2022]
Abstract
Aqueous ring-opening metathesis polymerization (ROMP) is a powerful tool for polymer synthesis under environmentally friendly conditions, functionalization of biomacromolecules, and preparation of polymeric nanoparticles via ROMP-induced self-assembly (ROMPISA). Although new water-soluble Ru-based metathesis catalysts have been developed and evaluated for their efficiency in mediating cross metathesis (CM) and ring-closing metathesis (RCM) reactions, little is known with regards to their catalytic activity and stability during aqueous ROMP. Here, we investigate the influence of solution pH, the presence of salt additives, and catalyst loading on ROMP monomer conversion and catalyst lifetime. We find that ROMP in aqueous media is particularly sensitive to chloride ion concentration and propose that this sensitivity originates from chloride ligand displacement by hydroxide or H2O at the Ru center, which reversibly generates an unstable and metathesis inactive complex. The formation of this Ru-(OH)n complex not only reduces monomer conversion and catalyst lifetime but also influences polymer microstructure. However, we find that the addition of chloride salts dramatically improves ROMP conversion and control. By carrying out aqueous ROMP in the presence of various chloride sources such as NaCl, KCl, or tetrabutylammonium chloride, we show that diblock copolymers can be readily synthesized via ROMPISA in solutions with high concentrations of neutral H2O (i.e., 90 v/v%) and relatively low concentrations of catalyst (i.e., 1 mol %). The capability to conduct aqueous ROMP at neutral pH is anticipated to enable new research avenues, particularly for applications in biological media, where the unique characteristics of ROMP provide distinct advantages over other polymerization strategies.
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Affiliation(s)
- Jeffrey C. Foster
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United
Kingdom
| | - Marcus C. Grocott
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United
Kingdom
| | - Lucy A. Arkinstall
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United
Kingdom
| | - Spyridon Varlas
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United
Kingdom
| | - McKenna J. Redding
- Department
of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Scott M. Grayson
- Department
of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Rachel K. O’Reilly
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United
Kingdom
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8
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Self-assembled nanostructures from amphiphilic block copolymers prepared via ring-opening metathesis polymerization (ROMP). Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101278] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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9
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Church DC, Takiguchi L, Pokorski JK. Optimization of Ring-Opening Metathesis Polymerization (ROMP) under Physiologically Relevant Conditions. Polym Chem 2020; 11:4492-4499. [PMID: 33796158 PMCID: PMC8009303 DOI: 10.1039/d0py00716a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ring opening metathesis polymerization (ROMP) is widely considered an excellent living polymerization technique that proceeds rapidly under ambient conditions and is highly functional group tolerant when performed in organic solvents. However, achieving the same level of success in aqueous media has proved to be challenging, often requiring an organic co-solvent or a very low pH to obtain fast initiation and high monomer conversion. The ability to efficiently conduct ROMP under neutral pH aqueous conditions would mark an important step towards utilizing aqueous ROMP with acid-sensitive functional groups or within a biological setting. Herein we describe our efforts to optimize ROMP in an aqueous environment under neutral pH conditions. Specifically, we found that the presence of excess chloride in solution as well as relatively small changes in pH near physiological conditions have a profound effect on molecular weight control, polymerization rate and overall monomer conversion. Additionally, we have applied our optimized conditions to polymerize a broad scope of water-soluble monomers and used this methodology to produce nanostructures via ring opening metathesis polymerization induced self-assembly (ROMPISA) under neutral pH aqueous conditions.
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Affiliation(s)
- Derek C. Church
- Department of NanoEngineering, Jacobs School of Engineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Lauren Takiguchi
- Department of NanoEngineering, Jacobs School of Engineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Jonathan K. Pokorski
- Department of NanoEngineering, Jacobs School of Engineering, University of California San Diego, La Jolla, CA 92093, USA
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10
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Messina MS, Messina KMM, Bhattacharya A, Montgomery HR, Maynard HD. Preparation of Biomolecule-Polymer Conjugates by Grafting-From Using ATRP, RAFT, or ROMP. Prog Polym Sci 2020; 100:101186. [PMID: 32863465 PMCID: PMC7453843 DOI: 10.1016/j.progpolymsci.2019.101186] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Biomolecule-polymer conjugates are constructs that take advantage of the functional or otherwise beneficial traits inherent to biomolecules and combine them with synthetic polymers possessing specially tailored properties. The rapid development of novel biomolecule-polymer conjugates based on proteins, peptides, or nucleic acids has ushered in a variety of unique materials, which exhibit functional attributes including thermo-responsiveness, exceptional stability, and specialized specificity. Key to the synthesis of new biomolecule-polymer hybrids is the use of controlled polymerization techniques coupled with either grafting-from, grafting-to, or grafting-through methodology, each of which exhibit distinct advantages and/or disadvantages. In this review, we present recent progress in the development of biomolecule-polymer conjugates with a focus on works that have detailed the use of grafting-from methods employing ATRP, RAFT, or ROMP.
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Affiliation(s)
- Marco S Messina
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
| | - Kathryn M M Messina
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
| | - Arvind Bhattacharya
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
| | - Hayden R Montgomery
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
| | - Heather D Maynard
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
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11
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Miura Y. Controlled polymerization for the development of bioconjugate polymers and materials. J Mater Chem B 2020; 8:2010-2019. [DOI: 10.1039/c9tb02418b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugates of various biopolymers with synthetic polymers were preparedvialiving radical polymerization. The conjugates have precise structures and potential for novel biofunctional materials.
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Affiliation(s)
- Yoshiko Miura
- Department of Chemical Engineering
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
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12
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Varlas S, Keogh R, Xie Y, Horswell SL, Foster JC, O’Reilly RK. Polymerization-Induced Polymersome Fusion. J Am Chem Soc 2019; 141:20234-20248. [PMID: 31782652 PMCID: PMC6935865 DOI: 10.1021/jacs.9b10152] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Indexed: 02/06/2023]
Abstract
The dynamic interactions of membranes, particularly their fusion and fission, are critical for the transmission of chemical information between cells. Fusion is primarily driven by membrane tension built up through membrane deformation. For artificial polymersomes, fusion is commonly induced via the external application of a force field. Herein, fusion-promoted development of anisotropic tubular polymersomes (tubesomes) was achieved in the absence of an external force by exploiting the unique features of aqueous ring-opening metathesis polymerization-induced self-assembly (ROMPISA). The out-of-equilibrium tubesome morphology was found to arise spontaneously during polymerization, and the composition of each tubesome sample (purity and length distribution) could be manipulated simply by targeting different core-block degrees of polymerization (DPs). The evolution of tubesomes was shown to occur via fusion of "monomeric" spherical polymersomes, evidenced most notably by a step-growth-like relationship between the fraction of tubular to spherical nano-objects and the average number of fused particles per tubesome (analogous to monomer conversion and DP, respectively). Fusion was also confirmed by Förster resonance energy transfer (FRET) studies to show membrane blending and confocal microscopy imaging to show mixing of the polymersome lumens. We term this unique phenomenon polymerization-induced polymersome fusion, which operates via the buildup of membrane tension exerted by the growing polymer chains. Given the growing body of evidence demonstrating the importance of nanoparticle shape on biological activity, our methodology provides a facile route to reproducibly obtain samples containing mixtures of spherical and tubular polymersomes, or pure samples of tubesomes, of programmed length. Moreover, the capability to mix the interior aqueous compartments of polymersomes during polymerization-induced fusion also presents opportunities for its application in catalysis, small molecule trafficking, and drug delivery.
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Affiliation(s)
- Spyridon Varlas
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Robert Keogh
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Yujie Xie
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Sarah L. Horswell
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Jeffrey C. Foster
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Rachel K. O’Reilly
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
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13
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Latyshev V, Shylenko O, Bilanych V, Stamenkovic V, Rizak V, Feher A, Kovalcikova A, Komanicky V. Turning Catalysts on by Light‐Induced Stress: When Red Means Go. ChemElectroChem 2019. [DOI: 10.1002/celc.201900393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vitalii Latyshev
- P. J. Šafárik University in Košice Faculty of Science Park Angelinum 9 04154 Košice Slovakia
| | - Oleg Shylenko
- P. J. Šafárik University in Košice Faculty of Science Park Angelinum 9 04154 Košice Slovakia
| | - Vitalij Bilanych
- Department of Physics Uzhgorod National University Uzhgorod 88000 Ukraine
| | - Vojislav Stamenkovic
- Materials Science Division and Center for Nanoscale Materials Argonne National Laboratory, Argonne Illinois 60439
| | - Vasyl Rizak
- Department of Physics Uzhgorod National University Uzhgorod 88000 Ukraine
| | - Alexander Feher
- P. J. Šafárik University in Košice Faculty of Science Park Angelinum 9 04154 Košice Slovakia
| | | | - Vladimir Komanicky
- P. J. Šafárik University in Košice Faculty of Science Park Angelinum 9 04154 Košice Slovakia
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14
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Wright DB, Proetto MT, Touve MA, Gianneschi NC. Ring-opening metathesis polymerization-induced self-assembly (ROMPISA) of a cisplatin analogue for high drug-loaded nanoparticles. Polym Chem 2019. [DOI: 10.1039/c8py01539b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report the one-pot aqueous phase synthesis of cisplatin drug loaded micellar nanoparticles using Ring-Opening Metathesis Polymerization-Induced Self-Assembly (ROMPISA).
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Affiliation(s)
- Daniel B. Wright
- Department of Chemistry
- Department of Materials Science and Engineering
- and Department of Biomedical Engineering
- Northwestern University
- Evanston
| | - Maria T. Proetto
- Department of Chemistry
- Department of Materials Science and Engineering
- and Department of Biomedical Engineering
- Northwestern University
- Evanston
| | - Mollie A. Touve
- Department of Chemistry
- Department of Materials Science and Engineering
- and Department of Biomedical Engineering
- Northwestern University
- Evanston
| | - Nathan C. Gianneschi
- Department of Chemistry
- Department of Materials Science and Engineering
- and Department of Biomedical Engineering
- Northwestern University
- Evanston
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15
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Varlas S, Foster JC, O'Reilly RK. Ring-opening metathesis polymerization-induced self-assembly (ROMPISA). Chem Commun (Camb) 2019; 55:9066-9071. [DOI: 10.1039/c9cc04445k] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ring-opening metathesis polymerization-induced self-assembly (ROMPISA) has expanded the preparation of PISA nano-objects beyond radical polymerization approaches. In this highlight article, we summarize current advances and existing challenges in ROMPISA methodologies.
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Affiliation(s)
- Spyridon Varlas
- School of Chemistry
- University of Birmingham
- Edgbaston
- Birmingham
- UK
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16
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Foster JC, Varlas S, Blackman LD, Arkinstall LA, O'Reilly RK. Ring‐Opening Metathesis Polymerization in Aqueous Media Using a Macroinitiator Approach. Angew Chem Int Ed Engl 2018; 57:10672-10676. [DOI: 10.1002/anie.201806719] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Jeffrey C. Foster
- School of ChemistryUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Spyridon Varlas
- School of ChemistryUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Lewis D. Blackman
- Department of ChemistryThe University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Lucy A. Arkinstall
- School of ChemistryUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Rachel K. O'Reilly
- School of ChemistryUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
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17
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Foster JC, Varlas S, Blackman LD, Arkinstall LA, O'Reilly RK. Ring‐Opening Metathesis Polymerization in Aqueous Media Using a Macroinitiator Approach. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806719] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jeffrey C. Foster
- School of ChemistryUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Spyridon Varlas
- School of ChemistryUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Lewis D. Blackman
- Department of ChemistryThe University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Lucy A. Arkinstall
- School of ChemistryUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Rachel K. O'Reilly
- School of ChemistryUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
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18
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Jeong Y, Tonga GY, Duncan B, Yan B, Das R, Sahub C, Rotello VM. Solubilization of Hydrophobic Catalysts Using Nanoparticle Hosts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:10.1002/smll.201702198. [PMID: 29271047 PMCID: PMC5848072 DOI: 10.1002/smll.201702198] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 10/23/2017] [Indexed: 05/17/2023]
Abstract
A modular strategy for the solubilization and protection of hydrophobic transition metal catalysts using the hydrophobic pockets of water soluble gold nanoparticles is reported. Besides preserving original catalyst activity, this encapsulation strategy provides a protective environment for the hydrophobic catalyst and brings reusability. This system provides a versatile platform for the encapsulation of different hydrophobic transition metal catalysts, allowing a wide range of catalysis in water while uniting the advantages of homogeneous and heterogeneous catalysis in the same system.
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Affiliation(s)
- Youngdo Jeong
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Gulen Yesilbag Tonga
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Bradley Duncan
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Bo Yan
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Riddha Das
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Chonticha Sahub
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA. Supramolecular Chemistry Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
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19
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Teator AJ, Bielawski CW. Remote control grubbs catalysts that modulate ring‐opening metathesis polymerizations. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28665] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Aaron J. Teator
- Department of ChemistryUniversity of North Carolina at Chapel HillChapel Hill North Carolina27599
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS)Ulsan44919 Republic of Korea
- Department of ChemistryUlsan National Institute of Science and Technology (UNIST)Ulsan44919 Republic of Korea
- Department of Energy EngineeringUlsan National Institute of Science and Technology (UNIST)Ulsan44919 Republic of Korea
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20
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Biglova YN, Mustafin AG, Torosyan SA, Biglova RZ, Miftakhov MS. Ring-opening metathesis polymerization (ROMP) of fullerene-containing monomers in the presence of a first-generation Grubbs catalyst. KINETICS AND CATALYSIS 2017. [DOI: 10.1134/s0023158417020021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Kang C, Kang EH, Choi TL. Successful Cyclopolymerization of 1,6-Heptadiynes Using First-Generation Grubbs Catalyst Twenty Years after Its Invention: Revealing a Comprehensive Picture of Cyclopolymerization Using Grubbs Catalysts. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00488] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Cheol Kang
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Eun-Hye Kang
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Tae-Lim Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
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22
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Buchmeiser MR. Recent Advances in the Regio- and Stereospecific Cyclopolymerization of α,ω-Diynes by Tailored Ruthenium Alkylidenes and Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes. POLYM REV 2016. [DOI: 10.1080/15583724.2015.1136643] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Koy M, Altmann HJ, Autenrieth B, Frey W, Buchmeiser MR. Grubbs-Hoveyda type catalysts bearing a dicationic N-heterocyclic carbene for biphasic olefin metathesis reactions in ionic liquids. Beilstein J Org Chem 2015; 11:1632-8. [PMID: 26664582 PMCID: PMC4660883 DOI: 10.3762/bjoc.11.178] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 08/25/2015] [Indexed: 12/01/2022] Open
Abstract
The novel dicationic metathesis catalyst [(RuCl2(H2ITapMe2)(=CH–2-(2-PrO)-C6H4))2+ (OTf−)2] (Ru-2, H2ITapMe2 = 1,3-bis(2’,6’-dimethyl-4’-trimethylammoniumphenyl)-4,5-dihydroimidazol-2-ylidene, OTf− = CF3SO3−) based on a dicationic N-heterocyclic carbene (NHC) ligand was prepared. The reactivity was tested in ring opening metathesis polymerization (ROMP) under biphasic conditions using a nonpolar organic solvent (toluene) and the ionic liquid (IL) 1-butyl-2,3-dimethylimidazolium tetrafluoroborate [BDMIM+][BF4−]. The structure of Ru-2 was confirmed by single crystal X-ray analysis.
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Affiliation(s)
- Maximilian Koy
- Lehrstuhl für Makromolekulare Stoffe und Faserchemie, Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Hagen J Altmann
- Lehrstuhl für Makromolekulare Stoffe und Faserchemie, Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Benjamin Autenrieth
- Lehrstuhl für Makromolekulare Stoffe und Faserchemie, Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Wolfgang Frey
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Michael R Buchmeiser
- Lehrstuhl für Makromolekulare Stoffe und Faserchemie, Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany, ; Institut für Textilchemie und Chemiefaser (ITCF) Denkendorf, Körschtalstr. 26, D-73770 Denkendorf, Germany
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24
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Piola L, Nahra F, Nolan SP. Olefin metathesis in air. Beilstein J Org Chem 2015; 11:2038-56. [PMID: 26664625 PMCID: PMC4661004 DOI: 10.3762/bjoc.11.221] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/13/2015] [Indexed: 11/23/2022] Open
Abstract
Since the discovery and now widespread use of olefin metathesis, the evolution of metathesis catalysts towards air stability has become an area of significant interest. In this fascinating area of study, beginning with early systems making use of high oxidation state early transition metal centers that required strict exclusion of water and air, advances have been made to render catalysts more stable and yet more functional group tolerant. This review summarizes the major developments concerning catalytic systems directed towards water and air tolerance.
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Affiliation(s)
- Lorenzo Piola
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Fady Nahra
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Steven P Nolan
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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25
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Balof SL, Nix KO, Olliff MS, Roessler SE, Saha A, Müller KB, Behrens U, Valente EJ, Schanz HJ. Hexacoordinate Ru-based olefin metathesis catalysts with pH-responsive N-heterocyclic carbene (NHC) and N-donor ligands for ROMP reactions in non-aqueous, aqueous and emulsion conditions. Beilstein J Org Chem 2015; 11:1960-72. [PMID: 26664616 PMCID: PMC4660970 DOI: 10.3762/bjoc.11.212] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 09/24/2015] [Indexed: 11/23/2022] Open
Abstract
Three new ruthenium alkylidene complexes (PCy3)Cl2(H2ITap)Ru=CHSPh (9), (DMAP)2Cl2(H2ITap)Ru=CHPh (11) and (DMAP)2Cl2(H2ITap)Ru=CHSPh (12) have been synthesized bearing the pH-responsive H2ITap ligand (H2ITap = 1,3-bis(2’,6’-dimethyl-4’-dimethylaminophenyl)-4,5-dihydroimidazol-2-ylidene). Catalysts 11 and 12 are additionally ligated by two pH-responsive DMAP ligands. The crystal structure was solved for complex 12 by X-ray diffraction. In organic, neutral solution, the catalysts are capable of performing standard ring-opening metathesis polymerization (ROMP) and ring closing metathesis (RCM) reactions with standard substrates. The ROMP with complex 11 is accelerated in the presence of two equiv of H3PO4, but is reduced as soon as the acid amount increased. The metathesis of phenylthiomethylidene catalysts 9 and 12 is sluggish at room temperature, but their ROMP can be dramatically accelerated at 60 °C. Complexes 11 and 12 are soluble in aqueous acid. They display the ability to perform RCM of diallylmalonic acid (DAMA), however, their conversions are very low amounting only to few turnovers before decomposition. However, both catalysts exhibit outstanding performance in the ROMP of dicyclopentadiene (DCPD) and mixtures of DCPD with cyclooctene (COE) in acidic aqueous microemulsion. With loadings as low as 180 ppm, the catalysts afforded mostly quantitative conversions of these monomers while maintaining the size and shape of the droplets throughout the polymerization process. Furthermore, the coagulate content for all experiments stayed <2%. This represents an unprecedented efficiency in emulsion ROMP based on hydrophilic ruthenium alkylidene complexes.
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Affiliation(s)
- Shawna L Balof
- Department of Chemistry & Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, MS 39406-5043, USA
| | - K Owen Nix
- Department of Chemistry, Georgia Southern University, 521 College of Education Drive, Statesboro, GA 30458-8064, USA
| | - Matthew S Olliff
- Department of Chemistry, Georgia Southern University, 521 College of Education Drive, Statesboro, GA 30458-8064, USA
| | - Sarah E Roessler
- Department of Chemistry, Georgia Southern University, 521 College of Education Drive, Statesboro, GA 30458-8064, USA
| | - Arpita Saha
- Department of Chemistry, Georgia Southern University, 521 College of Education Drive, Statesboro, GA 30458-8064, USA
| | | | - Ulrich Behrens
- BASF SE, Basic Chemicals Research, GCB/C - M313, 67056 Ludwigshafen, Germany
| | - Edward J Valente
- Department of Chemistry, University of Portland, 5000 N. Willamette Blvd., Portland, OR 97203, USA
| | - Hans-Jörg Schanz
- Department of Chemistry, Georgia Southern University, 521 College of Education Drive, Statesboro, GA 30458-8064, USA
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26
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Ostrowska S, Powała B, Jankowska-Wajda M, Żak P, Rogalski S, Wyrzykiewicz B, Pietraszuk C. Regio- and steroselective cross-metathesis of silylacetylenes with terminal olefins and α,ω-dienes. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Mane SR, Sarkar S, N. VR, Sathyan A, Shunmugam R. An efficient method to prepare a new class of regioregular graft copolymer via a click chemistry approach. RSC Adv 2015. [DOI: 10.1039/c5ra12510c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Herein, we report the synthesis of a novel regioregular poly-norbornene anhydride-g-(3-hexyl thiophene) (PNBA-g-PHT) graft copolymer.
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Affiliation(s)
- Shivshankar R. Mane
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata (IISER-K)
- India
| | - Santu Sarkar
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata (IISER-K)
- India
| | - Vijayakameswara Rao N.
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata (IISER-K)
- India
| | - Ashlin Sathyan
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata (IISER-K)
- India
| | - Raja Shunmugam
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata (IISER-K)
- India
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28
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Manna CM, Kaplan HZ, Li B, Byers JA. High molecular weight poly(lactic acid) produced by an efficient iron catalyst bearing a bis(amidinato)- N -heterocyclic carbene ligand. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.07.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Miftakhov MS, Mikheev VV, Torosyan SA, Biglova YN, Gimalova FA, Menshov VM, Mustafin AG. Fullerene containing norbornenes: synthesis and ring-opening metathesis polymerization. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Liu G, Zhang H, Zhao X, Wang J. Efficient ruthenium metathesis catalysts containing carborane ligands. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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31
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Versace DL, Cerezo Bastida J, Lorenzini C, Cachet-Vivier C, Renard E, Langlois V, Malval JP, Fouassier JP, Lalevée J. A Tris(triphenylphosphine)ruthenium(II) Complex as a UV Photoinitiator for Free-Radical Polymerization and in Situ Silver Nanoparticle Formation in Cationic Films. Macromolecules 2013. [DOI: 10.1021/ma4019872] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Davy-Louis Versace
- Institut
de Chimie et des Matériaux Paris-Est, UMR 7182, Université Paris-Est Créteil Val de Marne (UPEC), 2-8 rue
Henri Dunant, 94320 Thiais, France
| | | | - Cédric Lorenzini
- Institut
de Chimie et des Matériaux Paris-Est, UMR 7182, Université Paris-Est Créteil Val de Marne (UPEC), 2-8 rue
Henri Dunant, 94320 Thiais, France
| | - Christine Cachet-Vivier
- Institut
de Chimie et des Matériaux Paris-Est, UMR 7182, Université Paris-Est Créteil Val de Marne (UPEC), 2-8 rue
Henri Dunant, 94320 Thiais, France
| | - Estelle Renard
- Institut
de Chimie et des Matériaux Paris-Est, UMR 7182, Université Paris-Est Créteil Val de Marne (UPEC), 2-8 rue
Henri Dunant, 94320 Thiais, France
| | - Valérie Langlois
- Institut
de Chimie et des Matériaux Paris-Est, UMR 7182, Université Paris-Est Créteil Val de Marne (UPEC), 2-8 rue
Henri Dunant, 94320 Thiais, France
| | - Jean-Pierre Malval
- Institut
de Science des Matériaux de Mulhouse, UMR CNRS-UHA 7361, 15
rue Starcky - 68057 Mulhouse, France
| | | | - Jacques Lalevée
- Institut
de Science des Matériaux de Mulhouse, UMR CNRS-UHA 7361, 15
rue Starcky - 68057 Mulhouse, France
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32
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Matsuo T, Yoshida T, Fujii A, Kawahara K, Hirota S. Effect of Added Salt on Ring-Closing Metathesis Catalyzed by a Water-Soluble Hoveyda–Grubbs Type Complex To Form N-Containing Heterocycles in Aqueous Media. Organometallics 2013. [DOI: 10.1021/om4005302] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Takashi Matsuo
- Graduate
School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Takefumi Yoshida
- Graduate
School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Akira Fujii
- Graduate
School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Keiya Kawahara
- Graduate
School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Shun Hirota
- Graduate
School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
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33
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In situ modification of the Grubbs first generation catalyst: A highly controllable metathesis catalyst bearing tridentate Schiff base ligands. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.04.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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34
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Philippart F, Arlt M, Gotzen S, Tenne SJ, Bocola M, Chen HH, Zhu L, Schwaneberg U, Okuda J. A hybrid ring-opening metathesis polymerization catalyst based on an engineered variant of the β-barrel protein FhuA. Chemistry 2013; 19:13865-71. [PMID: 23959581 DOI: 10.1002/chem.201301515] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Revised: 06/20/2013] [Indexed: 11/06/2022]
Abstract
A β-barrel protein hybrid catalyst was prepared by covalently anchoring a Grubbs-Hoveyda type olefin metathesis catalyst at a single accessible cysteine amino acid in the barrel interior of a variant of β-barrel transmembrane protein ferric hydroxamate uptake protein component A (FhuA). Activity of this hybrid catalyst type was demonstrated by ring-opening metathesis polymerization of a 7-oxanorbornene derivative in aqueous solution.
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Affiliation(s)
- Freddi Philippart
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, 52056 Aachen (Germany)
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35
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Takashima Y, Uramatsu K, Jomori D, Harima A, Otsubo M, Yamaguchi H, Harada A. Ring-Opening Metathesis Polymerization by a Ru Phosphine Derivative of Cyclodextrin in Water. ACS Macro Lett 2013; 2:384-387. [PMID: 35581843 DOI: 10.1021/mz4001942] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Trimethylated cyclodextrins with a phosphine ligand and ruthenium (PCy2Ru-CDs) realize supramolecular polymerization catalysts for ring-opening metathesis polymerization (ROMP). Although PCy2Ru-βCD shows a low polymerization activity for 7-oxanorbornene dimethanol (7-ONorOH2) in organic solvents, it exhibits a high ROMP activity for 7-ONorOH2 in aqueous solutions. The ROMP activity of PCy2Ru-βCD is higher than that of PCy2Ru-αCD. The addition of competitive guest molecules decreases the polymer yield, indicating that complexation between PCy2Ru-CD and 7-ONorOH2 in water plays an important role in the increased polymer yield.
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Affiliation(s)
- Yoshinori Takashima
- Department of Macromolecular Science,
Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
| | - Kunio Uramatsu
- Department of Macromolecular Science,
Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
| | - Daisuke Jomori
- Department of Macromolecular Science,
Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
| | - Aiko Harima
- Department of Macromolecular Science,
Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
| | - Miyuki Otsubo
- Department of Macromolecular Science,
Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science,
Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
| | - Akira Harada
- Department of Macromolecular Science,
Graduate School
of Science, Osaka University, Toyonaka,
Osaka 560-0043, Japan
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36
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Abstract
Glycans are key participants in biological processes ranging from reproduction to cellular communication to infection. Revealing glycan roles and the underlying molecular mechanisms by which glycans manifest their function requires access to glycan derivatives that vary systematically. To this end, glycopolymers (polymers bearing pendant carbohydrates) have emerged as valuable glycan analogs. Because glycopolymers can readily be synthesized, their overall shape can be varied, and they can be altered systematically to dissect the structural features that underpin their activities. This review provides examples in which glycopolymers have been used to effect carbohydrate-mediated signal transduction. Our objective is to illustrate how these powerful tools can reveal the molecular mechanisms that underlie carbohydrate-mediated signal transduction.
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Affiliation(s)
- Laura L Kiessling
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave, Madison, WI 53706, USA.
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37
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Groote R, Jakobs RTM, Sijbesma RP. Performance of Mechanochemically Activated Catalysts Is Enhanced by Suppression of the Thermal Effects of Ultrasound. ACS Macro Lett 2012; 1:1012-1015. [PMID: 35607027 DOI: 10.1021/mz3002512] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work, we demonstrate that the performance of mechanochemically activated transesterification and alkene metathesis catalysts is significantly enhanced when the thermal effects of ultrasound are suppressed. Suppression of these effects is realized by performing the reaction under methane instead of argon. Not only do these results provide further confirmation of the true mechanochemical nature of the ultrasonic activation of the catalysts, but it also strongly recommends the use of methane as standard saturation gas when studying the mechanochemical effects of ultrasound.
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Affiliation(s)
- Ramon Groote
- Laboratory of Macromolecular and Organic
Chemistry and Institute for Complex Molecular
Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Robert T. M. Jakobs
- Laboratory of Macromolecular and Organic
Chemistry and Institute for Complex Molecular
Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Rint P. Sijbesma
- Laboratory of Macromolecular and Organic
Chemistry and Institute for Complex Molecular
Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
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38
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Al-Hashimi M, Hongfa C, George B, Bazzi HS, Bergbreiter DE. A phase-separable second-generation hoveyda-grubbs catalyst for ring-opening metathesis polymerization. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26206] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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39
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Yoon KH, Kim KO, Wang C, Park I, Yoon DY. Synthesis and structure-property comparisons of hydrogenated poly(oxanorbornene-imide)s and poly(norbornene-imide)s prepared by ring-opening metathesis polymerization. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26171] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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40
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Cyclodextrin-based hyperbranched polymers by acyclic diene metathesis polymerization of an ABn monomer: molecule design, synthesis, and characterization. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-9863-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Colak S, Tew GN. Dual-functional ROMP-based betaines: effect of hydrophilicity and backbone structure on nonfouling properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:666-675. [PMID: 22126398 DOI: 10.1021/la203683u] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Foundational materials for nonfouling coatings were designed and synthesized from a series of novel dual-functional zwitterionic polymers, Poly[NRZI], which were easily obtained via ring-opening metathesis polymerization (ROMP) followed by a single step transformation of the cationic precursor, Poly[NR(+)], to the zwitterion, Poly[NRZI]. The resulting unique dual-functional structure contained the anion and the cation within the same repeat unit but on separate side chains, enabling the hydrophilicity of the system to be tuned at the repeat unit level. These dual-functional zwitterionic polymers were specifically designed to investigate the impact of structural changes, including the backbone, hydrophilicity, and charge, on the overall nonfouling properties. To evaluate the importance of backbone structure, and as a direct comparison to previously studied methacrylate-based betaines, norbornene-based carbo- and sulfobetaines (Poly[NCarboZI] and Poly[NSulfoZI]) as well as a methacrylate-based sulfobetaine (Poly[MASulfoZI]) were synthesized. These structures contain the anion-cation pairs on the same side chain. Nonfouling coatings were prepared from copolymers, composed of the zwitterionic/cationic precursor monomer and an ethoxysilane-containing monomer. The coatings were evaluated by using protein adsorption studies, which clearly indicated that the overall hydrophilicity has a major influence on the nonfouling character of the materials. The most hydrophilic coating, from the oligoethylene glycol (OEG)-containing dual-functional betaine, Poly[NOEGZI-co-NSi], showed the best resistance to nonspecific protein adsorption (Γ(FIB) = 0.039 ng/mm(2)). Both norbornene-based polymers systems, Poly[NSulfoZI] and Poly[NCarboZI], were more hydrophilic and thus more resistant to protein adsorption than the methacrylate-based Poly[MASulfoZI]. Comparing the protein resistance of the dual-functional zwitterionic coatings, Poly[NRZI-co-NSi], to that of their cationic counterparts, Poly[NR(+)-co-NSi], revealed the importance of screening electrostatic interactions. The adsorption of negatively charged proteins on zwitterionic coatings was significantly less, despite the fact that both coatings had similar wetting properties. These results demonstrate that the unique, tunable dual-functional zwitterionic polymers reported here can be used to make coatings that are highly efficient at resisting protein adsorption.
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Affiliation(s)
- Semra Colak
- Department of Polymer Science and Engineering, University of Massachusetts-Amherst, Conte Research Center for Polymers, 120 Governor's Drive, Amherst, Massachusetts 01003, United States
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42
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Hager EB, Makhubela BCE, Smith GS. Aqueous-phase hydroformylation of 1-octene using hydrophilic sulfonate salicylaldimine dendrimers. Dalton Trans 2012; 41:13927-35. [DOI: 10.1039/c2dt31471a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Laville L, Charnay C, Lamaty F, Martinez J, Colacino E. Ring-Closing Metathesis in Aqueous Micellar Medium. Chemistry 2011; 18:760-4. [DOI: 10.1002/chem.201101985] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Indexed: 11/11/2022]
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44
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Goh TK, Guntari SN, Ochs CJ, Blencowe A, Mertz D, Connal LA, Such GK, Qiao GG, Caruso F. Nanoengineered films via surface-confined continuous assembly of polymers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:2863-2867. [PMID: 21990191 DOI: 10.1002/smll.201101368] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Indexed: 05/31/2023]
Affiliation(s)
- Tor Kit Goh
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria, Australia
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45
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Song Z, Su X, Huang K, Lin H, Liu F, Tang J. Epoxidation of surface-bound polynorbornene films on silicon: Preventing degradation via solvent effect. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Lee KS, Choi TL. Accelerated ring-opening metathesis polymerization of a secondary amide of 1-cyclobutene by hydrogen-bonding interaction. Org Lett 2011; 13:3908-11. [PMID: 21740018 DOI: 10.1021/ol2014363] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A hydrogen-bond-assisted model is proposed for ring-opening metathesis polymerization (ROMP) of a secondary amide of 1-cyclobutene, resulting in the fastest reaction rate in a nonpolar solvent, toluene. This new model was supported by the investigation on how the solvent effect affected the NMR spectra, ROMP kinetic studies, and the copolymerization of monomers 1 and 2.
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Affiliation(s)
- Kil Sun Lee
- Department of Chemistry, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, Korea, 151-747
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47
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Lipshutz BH, Ghorai S, Leong WWY, Taft BR, Krogstad DV. Manipulating micellar environments for enhancing transition metal-catalyzed cross-couplings in water at room temperature. J Org Chem 2011; 76:5061-73. [PMID: 21539384 PMCID: PMC3608412 DOI: 10.1021/jo200746y] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The remarkable effects of added salts on the properties of aqueous micelles derived from the amphiphile PTS are described. Most notably, Heck reactions run in the presence of NaCl lead to couplings on aryl bromides in water at room temperature. Olefin cross- and ring-closing metathesis reactions run in the presence of small amounts of pH-lowering KHSO(4) are also accelerated, another phenomenon that does not apply to typical processes in organic media. These salt effects allow, in general, for synthetically valuable C-C bond-forming processes to be conducted under environmentally benign conditions. Recycling of the surfactant is also demonstrated.
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Affiliation(s)
- Bruce H Lipshutz
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, USA.
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48
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Keitz BK, Bouffard J, Bertrand G, Grubbs RH. Protonolysis of a ruthenium-carbene bond and applications in olefin metathesis. J Am Chem Soc 2011; 133:8498-501. [PMID: 21574621 PMCID: PMC3121189 DOI: 10.1021/ja203070r] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of a ruthenium complex containing an N-heterocylic carbene (NHC) and a mesoionic carbene (MIC) is described wherein addition of a Brønsted acid results in protonolysis of the Ru-MIC bond to generate an extremely active metathesis catalyst. Mechanistic studies implicated a rate-determining protonation step in the generation of the metathesis-active species. The activity of the NHC/MIC catalyst was found to exceed those of current commercial ruthenium catalysts.
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Affiliation(s)
- Benjamin K. Keitz
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125
| | - Jean Bouffard
- UCR-CNRS Joint Research Chemical Laboratory, Department of Chemistry, University of California, Riverside, CA 92521
| | - Guy Bertrand
- UCR-CNRS Joint Research Chemical Laboratory, Department of Chemistry, University of California, Riverside, CA 92521
| | - Robert H. Grubbs
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125
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49
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Zaman S, Chen H, Abell AD. Studies of a soluble polyethylene glycol immobilized ruthenium catalyst in aqueous media. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.12.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dunbar MA, Balof SL, Roberts AN, Valente EJ, Schanz HJ. pH-Responsive Ruthenium-Based Olefin Metathesis Catalysts: Controlled Ring-Opening Metathesis Polymerization in Alcoholic and Aqueous Media upon Acid Addition. Organometallics 2010. [DOI: 10.1021/om100633f] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miles A. Dunbar
- Department of Chemistry & Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, Mississippi 39406-5043, United States
| | - Shawna L. Balof
- Department of Chemistry & Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, Mississippi 39406-5043, United States
| | - Adam N. Roberts
- Department of Chemistry & Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, Mississippi 39406-5043, United States
| | - Edward J. Valente
- Department of Chemistry, University of Portland, 5000 N. Willamette Blvd., Portland, Oregon 97203, United States
| | - Hans-Jörg Schanz
- Department of Chemistry & Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, Mississippi 39406-5043, United States
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