1
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Miller L, Impelmann A, Bauer F, Breit B. Carbonylation as a Key Step in New Tandem Reactions - A Route to BODIPYs. Chemistry 2023:e202303752. [PMID: 38109037 DOI: 10.1002/chem.202303752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 12/19/2023]
Abstract
Herein, a highly efficient five-step reaction sequence to BODIPYs is presented. The key step is the combination of transition metal-catalyzed in-situ generation of aldehydes and their subsequent organocatalytic activation to yield dipyrromethanes, which are further converted to the corresponding BODIPY. Classic syntheses towards BODIPYs have relied on aldehydes or acid chlorides, which are often not commercially available and rather sensitive to handle. The presented approach starts from readily available and stable alkenes or aryl-bromides, which allows to extend the range of readily available BODIPYs that can be tailored for their specific use. The synthesis of 55 derivatives with overall yields of up to 78 % demonstrates the wide applicability and advantages of the presented method.
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Affiliation(s)
- Lukas Miller
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
| | - Alba Impelmann
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
| | - Felix Bauer
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
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2
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Van Guyse JFR, Bernhard Y, Podevyn A, Hoogenboom R. Non-activated Esters as Reactive Handles in Direct Post-Polymerization Modification. Angew Chem Int Ed Engl 2023; 62:e202303841. [PMID: 37335931 DOI: 10.1002/anie.202303841] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/26/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
Non-activated esters are prominently featured functional groups in polymer science, as ester functional monomers display great structural diversity and excellent compatibility with a wide range of polymerization mechanisms. Yet, their direct use as a reactive handle in post-polymerization modification has been typically avoided due to their low reactivity, which impairs the quantitative conversion typically desired in post-polymerization modification reactions. While activated ester approaches are a well-established alternative, the modification of non-activated esters remains a synthetic and economically valuable opportunity. In this review, we discuss past and recent efforts in the utilization of non-activated ester groups as a reactive handle to facilitate transesterification and aminolysis/amidation reactions, and the potential of the developed methodologies in the context of macromolecular engineering.
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Affiliation(s)
- Joachim F R Van Guyse
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
- Leiden Academic Center for Drug Research (LACDR), Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Yann Bernhard
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
- Université de Lorraine, UMR CNRS 7053 L2CM, Faculté des Sciences et Technologies, BP 70239, 54506, Vandoeuvre-lès-Nancy Cedex, France
| | - Annelore Podevyn
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
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3
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Jin Lee H, Tung Nguyen T, Vy Tran A, Sik Kim H, Suh YW, Baek J, Jin Kim Y. Engineering pKa value of 3° amine for enhanced production of dialkyl carbonate via Se-catalyzed oxidative carbonylation. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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4
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Jiang X, Zhao N, Li Z. Stereoselective
Ring‐Opening
Polymerization of
rac
‐Lactide
Catalyzed by Squaramide Derived Organocatalysts at Room Temperature
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiao Jiang
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department, College of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao Shandong 266042 China
| | - Na Zhao
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department, College of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao Shandong 266042 China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department, College of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao Shandong 266042 China
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao Shandong 266042 China
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5
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Zhang J, Xu L, Xiao W, Chen Y, Dong Z, Xu J, Lei C. Ring-opening polymerization of ε-caprolactone with recyclable and reusable squaric acid organocatalyst. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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6
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Macrocycles in dual role: ancillary ligands in metal complexes and organocatalysts for the ring-opening polymerization of lactide. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01045-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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7
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Ryzhakov D, Printz G, Jacques B, Messaoudi S, Dumas F, Dagorne S, Le Bideau F. Organo-catalyzed/initiated ring opening co-polymerization of cyclic anhydrides and epoxides: an emerging story. Polym Chem 2021. [DOI: 10.1039/d1py00020a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review deals with recent organo-catalyzed/initiated developments of co-polymerization of cyclic anhydrides and epoxides to access polyesters.
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Affiliation(s)
| | - Gaël Printz
- Institut de Chimie
- CNRS – Strasbourg University
- Strasbourg
- France
| | | | | | | | - Samuel Dagorne
- Institut de Chimie
- CNRS – Strasbourg University
- Strasbourg
- France
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8
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Polymerization Mechanism of Methyl Methacrylate Initiated by Ethyl Acetate/t-BuP4. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-019-2228-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Dharmaratne NU, Pothupitiya JU, Kiesewetter MK. The mechanistic duality of (thio)urea organocatalysts for ring-opening polymerization. Org Biomol Chem 2019; 17:3305-3313. [PMID: 30834919 DOI: 10.1039/c8ob03174f] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Among the various catalysts for ROP, H-bonding organocatalysts stand out in the precise level of reaction control they are able to render during ROP. The H-bonding class of organocatalysts are thought to effect ROP via dual activation of both monomer and chain end. (Thio)urea mediated ROP has experienced a renaissance as a new polymerization mechanism - mediated by imidate or thioimidate species - facilitates new modes of reactivity and new synthetic abilities. Indeed, the urea class of H-bond donors has been shown to be more active than their corresponding thioureas. The imidate mechanism remains highly active in polar solvents and exhibits remarkable control - and 'living' behavior - under solvent-free conditions, and a broad range of temperatures is accessible. The advancements in synthetic abilities have all evolved through a greater understanding of reaction mechanism. Through the continued synergistic advances of catalysis and material, the (thio)urea class of catalyst can find use in a host of potential applications, research and industrial environments.
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10
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11
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12
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Recyclable C2-symmetric tertiary amine-squaramide organocatalysts: Design and application to asymmetric synthesis of γ-nitrocarbonyl compounds. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Jeppesen A, Nielsen BE, Larsen D, Akselsen OM, Sølling TI, Brock-Nannestad T, Pittelkow M. Croconamides: a new dual hydrogen bond donating motif for anion recognition and organocatalysis. Org Biomol Chem 2018; 15:2784-2790. [PMID: 28272644 DOI: 10.1039/c7ob00441a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We introduce bis-aryl croconamides as a new member in the family of dual hydrogen bonding anion receptors. In this study a series of croconamides are synthesised, and the selectivity for anion binding is investigated (Cl- > Br- > I- in CH2Cl2). The croconamides exhibit different structures in the crystal phase depending on the substituents on the aromatic rings, and furthermore, the crystal structure revealed the presence of tautomers. DFT calculations elucidated the complex structures formed upon addition of anion to the croconamides, confirming the order of association constants towards the halogen anions. The use of croconamides as organocatalysts in a proof-of-concept study is demonstrated in the formation of THP ethers. In addition to this, construction of a Hammet plot further elucidates the mechanism in action on formation of THP ethers.
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Affiliation(s)
- Anne Jeppesen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
| | - Bjarne E Nielsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
| | - Dennis Larsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
| | - Olivia M Akselsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
| | - Theis I Sølling
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
| | - Theis Brock-Nannestad
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
| | - Michael Pittelkow
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
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14
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Liu Y, Wang X, Li Z, Wei F, Zhu H, Dong H, Chen S, Sun H, Yang K, Guo K. A switch from anionic to bifunctional H-bonding catalyzed ring-opening polymerizations towards polyether–polyester diblock copolymers. Polym Chem 2018. [DOI: 10.1039/c7py01842h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A switch of an anionic ROP of epoxides into a bifunctional H-bonding ROP of cyclic esters paved a new avenue to one-pot, sequential, and block copolymerizations to previously rare polyether-block-polyester copolymers.
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15
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Xu J, Liu J, Li Z, Xu S, Wang H, Guo T, Gao Y, Zhang L, Zhang C, Guo K. Opposite-charge repulsive cation and anion pair cooperative organocatalysis in ring-opening polymerization. Polym Chem 2018. [DOI: 10.1039/c8py00338f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A new strained ion pair catalysis was proposed in ring-opening polymerization.
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Affiliation(s)
- Jiaxi Xu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Jingjing Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zhenjiang Li
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
| | - Songquan Xu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Haixin Wang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Tianfo Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Yu Gao
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Lei Zhang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Chan Zhang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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16
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Walther P, Frey W, Naumann S. Polarized olefins as enabling (co)catalysts for the polymerization of γ-butyrolactone. Polym Chem 2018. [DOI: 10.1039/c8py00784e] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Heterocyclic olefins (NHOs) can homopolymerize GBL via anionic or zwitterionic pathways, whereby polymerization mode and polymer topology depend on the chemical structure of the NHO and the presence of LiCl as cocatalyst.
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Affiliation(s)
- Patrick Walther
- University of Stuttgart
- Institute of Polymer Chemistry
- 70569 Stuttgart
- Germany
| | - Wolfgang Frey
- University of Stuttgart
- Institute of Organic Chemistry
- 70569 Stuttgart
- Germany
| | - Stefan Naumann
- University of Stuttgart
- Institute of Polymer Chemistry
- 70569 Stuttgart
- Germany
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17
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Chen S, Liu Y, Li Z, Wang X, Dong H, Sun H, Yang K, Gebru H, Guo K. H-bonding binary organocatalysis promoted amine-initiated ring-opening polymerizations of lactide from polysarcosine to diblock copolymers. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.10.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Specklin D, Hild F, Chen L, Thévenin L, Munch M, Dumas F, Le Bideau F, Dagorne S. Bifunctional Squaramides as Organocatalysts for Lactide Polymerization: Catalytic Performance and Comparison with Monofunctional Analogues. ChemCatChem 2017. [DOI: 10.1002/cctc.201700272] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- David Specklin
- Institut de Chimie de Strasbourg; CNRS; Université de Strasbourg; 1 rue Blaise Pascal 67000 Strasbourg France
| | - Frédéric Hild
- Institut de Chimie de Strasbourg; CNRS; Université de Strasbourg; 1 rue Blaise Pascal 67000 Strasbourg France
| | - Li Chen
- Institut de Chimie de Strasbourg; CNRS; Université de Strasbourg; 1 rue Blaise Pascal 67000 Strasbourg France
- BioCIS, Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Lucas Thévenin
- Institut de Chimie de Strasbourg; CNRS; Université de Strasbourg; 1 rue Blaise Pascal 67000 Strasbourg France
| | - Maxime Munch
- Institut de Chimie de Strasbourg; CNRS; Université de Strasbourg; 1 rue Blaise Pascal 67000 Strasbourg France
| | - Françoise Dumas
- BioCIS, Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Franck Le Bideau
- BioCIS, Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Samuel Dagorne
- Institut de Chimie de Strasbourg; CNRS; Université de Strasbourg; 1 rue Blaise Pascal 67000 Strasbourg France
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19
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Rostami A, Sadeh E, Ahmadi S. Exploration of tertiary aminosquaramide bifunctional organocatalyst in controlled/living ring-opening polymerization of l-lactide. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28641] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ali Rostami
- Department of Polymer and Material Chemistry; Shahid Beheshti University; Tehran 19839-4716 I. R. Iran
| | - Elahe Sadeh
- Department of Polymer and Material Chemistry; Shahid Beheshti University; Tehran 19839-4716 I. R. Iran
| | - Shaghayegh Ahmadi
- Department of Polymer and Material Chemistry; Shahid Beheshti University; Tehran 19839-4716 I. R. Iran
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20
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Liu J, Xu J, Li Z, Xu S, Wang X, Wang H, Guo T, Gao Y, Zhang L, Guo K. Squaramide and amine binary H-bond organocatalysis in polymerizations of cyclic carbonates, lactones, and lactides. Polym Chem 2017. [DOI: 10.1039/c7py01671a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Multiple combinations of six squaramides and eight amines as co-catalysts were success in ROPs of cyclic monomers by H-bond donor and acceptor binary catalysis that established a general protocol.
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21
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Sun H, Xu S, Li Z, Xu J, Liu J, Wang X, Wang H, Dong H, Liu Y, Guo K. A preorganized dual H-bond donor promotes benzoic acid active in the polymerization of δ-valerolactone. Polym Chem 2017. [DOI: 10.1039/c7py01192j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enzyme-mimetic model follows squalene hopene cyclase is success in catalysis of ROP of δ-valerolactone in solution at room temperature by a carboxylic “strong” acid.
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22
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Catalytic Systems for the Production of Poly(lactic acid). SYNTHESIS, STRUCTURE AND PROPERTIES OF POLY(LACTIC ACID) 2017. [DOI: 10.1007/12_2017_20] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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23
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Li X, Zhang Q, Li Z, Wang X, Liu J, Cui S, Xu S, Zhao C, Chen C, Guo K. Thiourea binding with carboxylic acid promoted cationic ring-opening polymerization. POLYMER 2016. [DOI: 10.1016/j.polymer.2015.12.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Zhu N, Feng W, Hu X, Zhang Z, Fang Z, Zhang K, Li Z, Guo K. Organocatalyzed continuous flow ring-opening polymerizations to homo- and block-polylactones. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.01.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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25
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Li X, Zhang Q, Li Z, Xu S, Zhao C, Chen C, Zhi X, Wang H, Zhu N, Guo K. Tripodal hydrogen bond donor binding with sulfonic acid enables ring-opening polymerization. Polym Chem 2016. [DOI: 10.1039/c5py01931a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The first Brønsted acidic catalysis platform workable in all of the three major types of cyclic ester monomers including lactides, cyclic carbonates, and lactones, is described in this paper.
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26
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Zhi X, Liu J, Li Z, Wang H, Wang X, Cui S, Chen C, Zhao C, Li X, Guo K. Ionic hydrogen bond donor organocatalyst for fast living ring-opening polymerization. Polym Chem 2016. [DOI: 10.1039/c5py01315a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A positive charge enhanced H-bond donor combined with H-bond acceptor as a bifunctional organocatalyst enables fast living ring-opening polymerization of lactide.
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27
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Wang X, Liu J, Xu S, Xu J, Pan X, Liu J, Cui S, Li Z, Guo K. Traceless switch organocatalysis enables multiblock ring-opening copolymerizations of lactones, carbonates, and lactides: by a one plus one approach in one pot. Polym Chem 2016. [DOI: 10.1039/c6py01107a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A switch of organocatalysis from cationic to base/conjugate-acid bifunctional mechanisms made ring-opening copolymerizations of lactones/carbonates to lactides success.
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Affiliation(s)
- Xin Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jiaqi Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Songquan Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jiaxi Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xianfu Pan
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jingjing Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Saide Cui
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhenjiang Li
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Kai Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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28
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Xu J, Liu J, Li Z, Li X, Chen C, Zhao C, Xu S, Pan X, Liu J, Guo K. Three is company: dual intramolecular hydrogen-bond enabled carboxylic acid active in ring-opening polymerization. Polym Chem 2016. [DOI: 10.1039/c5py01635e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dual intramolecular H-bonding made weak Brønsted acid an active catalyst in cationic ring-opening polymerizations.
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29
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Chuang WJ, Huang YT, Chen YH, Lin YS, Lu WY, Lai YC, Chiang MY, Hsu SCN, Chen HY. Synthesis, characterization, and catalytic activity of sodium ketminiate complexes toward the ring-opening polymerization of l-lactide. RSC Adv 2016. [DOI: 10.1039/c6ra00373g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Na complexes bearing ketiminate ligands revealed the greater catalytic activity and polymer controllability than that of Na complexes bearing Schiff base ligands.
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Affiliation(s)
- Wan-Jung Chuang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yen-Tzu Huang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yu-Hsieh Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yu-Shan Lin
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
- Department of Chemistry
| | - Sodio C. N. Hsu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
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30
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Xu S, Sun H, Liu J, Xu J, Pan X, Dong H, Liu Y, Li Z, Guo K. Internal Lewis pair enhanced H-bond donor: boronate-urea and tertiary amine co-catalysis in ring-opening polymerization. Polym Chem 2016. [DOI: 10.1039/c6py01436d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new protocol of internal Lewis pair enhanced H-bond (LPHBD) catalysis for ring opening polymerisation was developed using boronate-urea (BU) as a representative LPHBD combined with tertiary amines.
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Affiliation(s)
- Songquan Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Herui Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jingjing Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jiaxi Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xianfu Pan
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - He Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yaya Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhenjiang Li
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Kai Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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31
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Zhu N, Feng W, Zhang Z, Fang Z, Li Z, Guo K. Thiol-functionalized branched and linear poly(ε-caprolactone): Direct synthesis, characterization and application in stabilizing silver nanoparticles. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.10.053] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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