1
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Mallick T, Jana D, Bisai A, De P. Asymmetric Aldol Reactions Catalyzed by Polymeric Self-Assembly with Side-Chain Dipeptide Pendants. ACS Macro Lett 2024; 13:651-657. [PMID: 38722312 DOI: 10.1021/acsmacrolett.4c00185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
To explore the role of proline amide moieties in polymer-supported organocatalysts, side-chain l-proline-l-alanine (Pro-Ala) dipeptide-containing block copolymers were synthesized, and their catalytic potential for the aldol reaction was explored. The dipeptide monomer (Boc-Pro-Ala-HEMA) was polymerized to prepare block copolymers in the presence of hydrophilic poly(poly(ethylene glycol) methyl ether methacrylate) (PPEGMA) and hydrophobic poly(methyl methacrylate) (PMMA) macro-chain transfer agents. Boc group expulsion from the block copolymers produced double hydrophilic PPEGMA-b-P(Pro-Ala-HEMA) (1b) and amphiphilic PMMA-b-P(Pro-Ala-HEMA) (1c) polymers. The solution behaviors of the polymers were studied by various physical techniques, which showed the formation of self-assembled aggregates of 1c in water and N,N-dimethylformamide (DMF)/water solvent mixtures. These polymers are used as organocatalysts during the aldol reaction of cyclohexanone and 4-nitrobenzaldehyde in different solvent polarities, catalyst loadings, temperatures, and reaction times. This work emphasizes superior catalytic activity of 1c at lower catalyst loadings (5%) while maintaining high conversion (95%) and enantioselectivity (94%) across multiple recycling cycles in DMF/water at a 3:1 ratio (v/v).
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Affiliation(s)
- Tamanna Mallick
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246 West Bengal, India
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246 West Bengal, India
| | - Debgopal Jana
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246 West Bengal, India
| | - Alakesh Bisai
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246 West Bengal, India
| | - Priyadarsi De
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246 West Bengal, India
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246 West Bengal, India
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2
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Shajahan R, Sarang R, Saithalavi A. Polymer Supported Proline-Based Organocatalysts in Asymmetric Aldol Reactions: A Review. CURRENT ORGANOCATALYSIS 2022. [DOI: 10.2174/2213337209666220112094231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The use of proline-based organocatalysts has acquired significant importance in organic synthesis, especially in enantioselective synthesis. Proline and its derivatives are proven to be quite effective chiral organocatalysts for a variety of transformations including the aldol reaction, which is considered as one of the important C-C bond forming reactions in organic synthesis. The use of chiral organocatalysts has several advantages over its metal-mediated analogues. Subsequently, a large number of highly efficient proline-based organocatalysts including polymer-supported chiral analogues have been identified for aldol reaction. The use of polymer-supported organocatalysts exhibited remarkable stability under the reaction conditions and offered the best results particularly in terms of its recyclability and reusability. These potential benefits along with its economic and green chemistry advantages have led to the search for many polymer-supported proline catalysts. In this review, recent developments in exploring various polymer immobilized proline-based chiral organocatalysts for asymmetric aldol reactions are described.
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Affiliation(s)
- Rubina Shajahan
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, India-686560
| | - Rithwik Sarang
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University, Kottayam, Kerala, India-686560
| | - Anas Saithalavi
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, India-686560
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University, Kottayam, Kerala, India-686560
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3
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Zhou D, Zhu LW, Wu BH, Xu ZK, Wan LS. End-functionalized polymers by controlled/living radical polymerizations: synthesis and applications. Polym Chem 2022. [DOI: 10.1039/d1py01252e] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This review focuses on end-functionalized polymers synthesized by controlled/living radical polymerizations and the applications in fields including bioconjugate formation, surface modification, topology construction, and self-assembly.
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Affiliation(s)
- Di Zhou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Liang-Wei Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Bai-Heng Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ling-Shu Wan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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4
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Brzeziński M, Kost B, Gonciarz W, Krupa A, Socka M, Rogala M. Nanocarriers based on block copolymers of l-proline and lactide: The effect of core crosslinking versus its pH-sensitivity on their cellular uptake. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Recyclable Helical Poly(phenyl isocyanide)-Supported l-Proline Catalyst for Direct Asymmetric Aldol Reaction in Brine. Catal Letters 2021. [DOI: 10.1007/s10562-020-03369-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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6
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Medina DD, Mastai Y. Chiral Polymers and Polymeric Particles for Enantioselective Crystallization. Isr J Chem 2019. [DOI: 10.1002/ijch.201800174] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dana D. Medina
- Department of Chemistry and Center for NanoScience (CeNS)Ludwig-Maximilians University (LMU) Bu-tendtstraße 11 (E) 81377 Munich Germany
| | - Yitzhak Mastai
- Department of Chemistry and theInstitute of Nanotechnology Bar-Ilan University Ramat-Gan 52900 Israel
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7
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Franconetti A, de Gonzalo G. Recent Developments on Supported Hydrogen-bond Organocatalysts. ChemCatChem 2018. [DOI: 10.1002/cctc.201801459] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Antonio Franconetti
- Departamento de Química; Universitat Autonoma de Barcelona; Cerdanyola del Vallés 01893 Spain
| | - Gonzalo de Gonzalo
- Departamento de Química Orgánica; Universidad de Sevilla; c/ Profesor García González 2 41012 Sevilla Spain
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8
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Shen L, Xu L, Hou XH, Liu N, Wu ZQ. Polymerization Amplified Stereoselectivity (PASS) of Asymmetric Michael Addition Reaction and Aldol Reaction Catalyzed by Helical Poly(phenyl isocyanide) Bearing Secondary Amine Pendants. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b02088] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Ling Shen
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009 Anhui Province China
| | - Lei Xu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009 Anhui Province China
| | - Xiao-Hua Hou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009 Anhui Province China
| | - Na Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009 Anhui Province China
| | - Zong-Quan Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009 Anhui Province China
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9
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Lestini E, Blackman LD, Zammit CM, Chen T, Williams RJ, Inam M, Couturaud B, O'Reilly RK. Palladium-polymer nanoreactors for the aqueous asymmetric synthesis of therapeutic flavonoids. Polym Chem 2018. [DOI: 10.1039/c7py02050c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Polymeric core–shell micelles incorporating a chiral palladium pyridinooxazoline catalyst are presented as nanoreactors for the aqueous asymmetric synthesis of flavanones, a class of flavonoids, with therapeutic properties.
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Affiliation(s)
- E. Lestini
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | | | - C. M. Zammit
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | - T. Chen
- University of Warwick
- Department of Chemistry
- Coventry
- UK
- College of Materials and Textiles
| | | | - M. Inam
- University of Warwick
- Department of Chemistry
- Coventry
- UK
| | - B. Couturaud
- University of Warwick
- Department of Chemistry
- Coventry
- UK
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10
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Magnetic nanoparticles grafted l-carnosine dipeptide: remarkable catalytic activity in water at room temperature. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1157-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Andrés JM, González F, Maestro A, Pedrosa R, Valle M. Biodegradable Chitosan-Derived Thioureas as Recoverable Supported Organocatalysts - Application to the Stereoselective Aza-Henry Reaction. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700582] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- José M. Andrés
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
| | - Fernando González
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
| | - Alicia Maestro
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
| | - Rafael Pedrosa
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
| | - María Valle
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
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12
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Murariu M, Nechifor M, Fifere N, Buruiana EC. Pyrene functionalized side chain alanine and histidine containing copolyacrylates prepared by free radical copolymerization. J Appl Polym Sci 2017. [DOI: 10.1002/app.44457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Mioara Murariu
- “Petru Poni” Institute of Macromolecular Chemistry; 41 A Grigore Ghica Voda Alley Iasi 700487 Romania
| | - Marioara Nechifor
- “Petru Poni” Institute of Macromolecular Chemistry; 41 A Grigore Ghica Voda Alley Iasi 700487 Romania
| | - Nicusor Fifere
- “Petru Poni” Institute of Macromolecular Chemistry; 41 A Grigore Ghica Voda Alley Iasi 700487 Romania
| | - Emil C. Buruiana
- “Petru Poni” Institute of Macromolecular Chemistry; 41 A Grigore Ghica Voda Alley Iasi 700487 Romania
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13
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Li X, Lv C, Jia X, Cheng M, Wang K, Hu Z. Nanoparticle Based on Poly(Ionic Liquid) as an Efficient Solid Immobilization Catalyst for Aldol Reaction and Multicomponent Reaction in Water. ACS APPLIED MATERIALS & INTERFACES 2017; 9:827-835. [PMID: 27966886 DOI: 10.1021/acsami.6b12334] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An environmentally friendly nanoparticle-supported catalyst was successfully prepared via in situ ionic complexation between imidazolium-based polymer ionic liquid (PIL) and poly(l-prolinamide-co-MAA). The physical and chemical properties of the obtained nanoparticles were characterized by TEM, FTIR, XPS, and static water contact angle experiments. The surface properties of the nanoparticle were found to significantly affect the catalytic performance. The nanoparticle with PIL outer facilitated the adsorption of reaction substrate in it. As a result, the catalytic system catalyzed the asymmetric Aldol reaction and multicomponent reaction in pure water efficiently. The catalytic system was able to be reused and recycled five times, and with no discernible loss in catalytic activity and enantioselectivity. These findings suggest that nanoparticles based on PIL may provide a new approach for preparing high performance supported catalysts for organic reactions in water. This technology also addresses issues associated with mass transfer in pure water reactions.
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Affiliation(s)
- Xinjuan Li
- Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, 453007, P. R. China
| | - Chunna Lv
- Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, 453007, P. R. China
| | - Xianbin Jia
- Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, 453007, P. R. China
| | - Maoqin Cheng
- Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, 453007, P. R. China
| | - Kai Wang
- Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, 453007, P. R. China
| | - Zhiguo Hu
- Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University , Xinxiang, 453007, P. R. China
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14
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Kucherenko AS, Kostenko AA, Gerasimchuk VV, Zlotin SG. Stereospecific diaza-Cope rearrangement as an efficient tool for the synthesis of DPEDA pyridine analogs and related C2-symmetric organocatalysts. Org Biomol Chem 2017; 15:7028-7033. [DOI: 10.1039/c7ob01852e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantiomerically pure trans-1,2-di-(pyridinyl)ethylene-1,2-diamines were synthesized via a stereospecific diaza-Cope rearrangement and converted to prolinamide-based recyclable organocatalysts.
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Affiliation(s)
- A. S. Kucherenko
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | - A. A. Kostenko
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | - V. V. Gerasimchuk
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | - S. G. Zlotin
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
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15
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Wang CA, Li YW, Han YF, Zhang JP, Wu RT, He GF. The “bottom-up” construction of chiral porous organic polymers for heterogeneous asymmetric organocatalysis: MacMillan catalyst built-in nanoporous organic frameworks. Polym Chem 2017. [DOI: 10.1039/c7py01127j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MacMillan catalyst-embedded chiral porous organic polymers were synthesized via bottom-up strategy and used as efficient and recyclable heterogeneous organocatalysts for the asymmetric Diels–Alder reaction.
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Affiliation(s)
- Chang-An Wang
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Yan-Wei Li
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Yin-Feng Han
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Jian-Ping Zhang
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Ren-Tao Wu
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Guo-Fang He
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
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16
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Rolph MS, Pitto-Barry A, O'Reilly RK. The hydrolytic behavior of N,N′-(dimethylamino)ethyl acrylate-functionalized polymeric stars. Polym Chem 2017. [DOI: 10.1039/c7py00219j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Well-definedN,N′-(dimethylamino)ethyl acrylate (DMAEA) functionalized polymeric stars have been synthesizedviaan arm-first approach.
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17
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Brisson ERL, Xiao Z, Franks GV, Connal LA. Versatile Synthesis of Amino Acid Functional Polymers without Protection Group Chemistry. Biomacromolecules 2016; 18:272-280. [DOI: 10.1021/acs.biomac.6b01618] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emma R. L. Brisson
- Department of Chemical and
Biomolecular Engineering and Particulate
Fluids Processing Centre, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Zeyun Xiao
- Department of Chemical and
Biomolecular Engineering and Particulate
Fluids Processing Centre, The University of Melbourne, Parkville, VIC 3010, Australia
| | - George V. Franks
- Department of Chemical and
Biomolecular Engineering and Particulate
Fluids Processing Centre, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Luke A. Connal
- Department of Chemical and
Biomolecular Engineering and Particulate
Fluids Processing Centre, The University of Melbourne, Parkville, VIC 3010, Australia
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18
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Li M, Cui F, Li Y, Tao Y, Wang X. Crystalline Regio-/Stereoregular Glycine-Bearing Polymers from ROMP: Effect of Microstructures on Materials Performances. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02244] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Maosheng Li
- University of Chinese
Academy of Sciences, Beijing 100039, People’s Republic of China
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19
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Lee KS, Parquette JR. A self-assembled nanotube for the direct aldol reaction in water. Chem Commun (Camb) 2016; 51:15653-6. [PMID: 26360936 DOI: 10.1039/c5cc06142c] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanotubes formed by the aqueous assembly of a proline-lysine dipeptide (1) were used to create the hydrophobic microenvironments required to catalyze the aldol reaction in water. The self-assembly process occurred most efficiently in the presence of the substrates, producing an array of homogeneous nanotubes under the reaction conditions. The nanotubes formed by dipeptide 1 served as an efficient catalyst for the aldol reaction that functioned at low loading levels and provided good to excellent conversions. The catalytic activity of 1 was minimal under conditions that dissociated the nanotube into soluble monomers.
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Affiliation(s)
- Kwang Soo Lee
- Department of Chemistry and Biochemistry, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
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20
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Brisson ERL, Xiao Z, Connal LA. Amino Acid Functional Polymers: Biomimetic Polymer Design Enabling Catalysis, Chiral Materials, and Drug Delivery. Aust J Chem 2016. [DOI: 10.1071/ch16028] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Amino acids are the natural building blocks for the world around us. Highly functional, these small molecules have unique catalytic properties, chirality, and biocompatibility. Imparting these properties to surfaces and other macromolecules is highly sought after and represents a fast-growing field. Polymers functionalized with amino acids in the side chains have tunable optical properties, pH responsiveness, biocompatibility, structure and self-assembly properties. Herein, we review the synthesis of amino acid functional polymers, discuss manipulation of available strategies to achieve the desired responsive materials, and summarize some exciting applications in catalysis, chiral particles, and drug delivery.
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21
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Bauri K, Roy SG, De P. Side-Chain Amino-Acid-Derived Cationic Chiral Polymers by Controlled Radical Polymerization. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500271] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kamal Bauri
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
| | - Saswati Ghosh Roy
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
| | - Priyadarsi De
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
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22
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Andrés JM, de La Cruz N, Valle M, Pedrosa R. Bottom-Up Synthesis of Supported Thioureas and Their Use in Enantioselective Solvent-Free Aza-Henry and Michael Additions. Chempluschem 2015; 81:86-92. [DOI: 10.1002/cplu.201500476] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Indexed: 11/07/2022]
Affiliation(s)
- José M. Andrés
- Instituto CINQUIMA and Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
| | - Noelia de La Cruz
- Instituto CINQUIMA and Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
| | - María Valle
- Instituto CINQUIMA and Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
| | - Rafael Pedrosa
- Instituto CINQUIMA and Departamento de Química Orgánica; Facultad de Ciencias; Universidad de Valladolid; Paseo de Belén 7 47011 Valladolid Spain
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23
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24
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Affiliation(s)
- Yugen Zhang
- Institute of Bioengineering and Nanotechnology, 31
Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Jackie Y. Ying
- Institute of Bioengineering and Nanotechnology, 31
Biopolis Way, The Nanos Singapore 138669 Singapore
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25
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Li X, Yang B, Jia X, Chen M, Hu Z. Temperature-responsive hairy particle-supported proline for direct asymmetric aldol reaction in water. RSC Adv 2015. [DOI: 10.1039/c5ra16393e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, three kinds of hairy particles with different brush structures were prepared and evaluated as chiral catalysts in the direct asymmetric aldol reaction.
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Affiliation(s)
- Xinjuan Li
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007
| | - Beilei Yang
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007
| | - Xianbin Jia
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007
| | - Maoqin Chen
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007
| | - Zhiguo Hu
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007
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26
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Wang H, Li N, Yan Z, Zhang J, Wan X. Synthesis and properties of novel helical 3-vinylpyridine polymers containing proline moieties for asymmetric aldol reaction. RSC Adv 2015. [DOI: 10.1039/c5ra07207g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel helical vinyl polymers bearing l/d-proline amide moieties were prepared to catalyze asymmetric aldol reactions, which afforded faster reaction rate but slightly poorer enantio-selectivity than the low molar mass counterparts.
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Affiliation(s)
- Heng Wang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of MOE
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Na Li
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of MOE
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Zijia Yan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of MOE
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Jie Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of MOE
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Xinhua Wan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of MOE
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
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27
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Wang S, Liu P, Wang WJ, Zhang Z, Li BG. Hyperbranched polyethylene-supported l-proline: a highly selective and recyclable organocatalyst for asymmetric aldol reactions. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00250h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A recyclable l-proline-based organocatalyst system with unique hyperbranched polyethylene as a scaffold is prepared for highly stereoselective asymmetric aldol reactions.
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Affiliation(s)
- Song Wang
- State Key Lab of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Pingwei Liu
- State Key Lab of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Wen-Jun Wang
- State Key Lab of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhiguo Zhang
- Key Lab of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Bo-Geng Li
- State Key Lab of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
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28
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Ladmiral V, Charlot A, Semsarilar M, Armes SP. Synthesis and characterization of poly(amino acid methacrylate)-stabilized diblock copolymer nano-objects. Polym Chem 2015. [DOI: 10.1039/c4py01556h] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Two amino acid methacrylates prepared via Michael addition are used as building blocks to prepare novel diblock copolymer nano-objects via polymerisation-induced self-assembly.
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Affiliation(s)
- Vincent Ladmiral
- Institut Charles Gerhardt de Montpellier (UMR 5253
- CNRS-UM2-ENSCM-UM1) ENSCM
- 34296 Montpellier
- France
| | | | - Mona Semsarilar
- Institut Européen des Membranes (UMR 5635
- ENSCM-CNRS-UM2)
- Université Montpellier 2
- 34095 Montpellier Cedex 05
- France
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29
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Khalafi-Nezhad A, Nourisefat M, Panahi F. l-Cysteine functionalized magnetic nanoparticles (LCMNP): a novel magnetically separable organocatalyst for one-pot synthesis of 2-amino-4H-chromene-3-carbonitriles in water. Org Biomol Chem 2015; 13:7772-9. [DOI: 10.1039/c5ob01030f] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Magnetic nanoparticles were functionalized with l-cysteine using a new and efficient method and introduced as a novel magnetically separable organocatalyst.
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Affiliation(s)
| | - Maryam Nourisefat
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
| | - Farhad Panahi
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
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30
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An WK, Han MY, Wang CA, Yu SM, Zhang Y, Bai S, Wang W. Insights into the Asymmetric Heterogeneous Catalysis in Porous Organic Polymers: Constructing A TADDOL-Embedded Chiral Catalyst for Studying the Structure-Activity Relationship[]. Chemistry 2014; 20:11019-28. [DOI: 10.1002/chem.201403002] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Indexed: 11/12/2022]
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31
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Roy SG, De P. pH responsive polymers with amino acids in the side chains and their potential applications. J Appl Polym Sci 2014. [DOI: 10.1002/app.41084] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Saswati Ghosh Roy
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur-741252 Nadia, West Bengal India
| | - Priyadarsi De
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur-741252 Nadia, West Bengal India
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32
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Fluorescent labelled dual-stimuli (pH/thermo) responsive self-assembled side-chain amino acid based polymers. POLYMER 2014. [DOI: 10.1016/j.polymer.2013.12.054] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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33
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Liu Y, Tong Q, Ge L, Zhang Y, Hua L, Fan Y. A novel poly(N-isopropyl-acrylamine-co-l-proline) catalyst for aldol reaction: synthesis, catalytic performance and recyclability. RSC Adv 2014. [DOI: 10.1039/c4ra05951d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel homogeneous copolymer catalyst, poly(N-isopropyl-acrylamine-co-l-proline), possesses excellent activity and stereoselectivities. Even after ten cycles, the catalytic activity and stereoselectivities remained almost unchanged. The circular dichroism spectra of the copolymer catalyst are apparently different from the corresponding monomer.
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Affiliation(s)
- Yubing Liu
- Key Laboratory of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, China
- Nanjing University-Yangzhou Institute of Chemistry and Chemical Engineering
| | - Qing Tong
- Key Laboratory of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, China
- Nanjing University-Yangzhou Institute of Chemistry and Chemical Engineering
| | - Liya Ge
- Residues and Resource Reclamation Centre
- Nanyang Environment and Water Research Institute
- Nanyang Technological University
- Singapore 637141, Singapore
- Natural Sciences and Science Education Academic Group
| | - Yu Zhang
- Nanjing University-Yangzhou Institute of Chemistry and Chemical Engineering
- Yizheng 211400, China
| | - Lin Hua
- Nanjing University-Yangzhou Institute of Chemistry and Chemical Engineering
- Yizheng 211400, China
- Linovus Technology Pte Ltd
- Singapore 159637, Singapore
| | - Yining Fan
- Key Laboratory of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093, China
- Nanjing University-Yangzhou Institute of Chemistry and Chemical Engineering
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34
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Li X, Chen M, Yang B, Zhang S, Jia X, Hu Z. Combining RAFT precipitation polymerization and surface-initiated RAFT polymerization: an efficient approach to prepare hairy particles—supported proline. RSC Adv 2014. [DOI: 10.1039/c4ra06176d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, a simple and efficient approach for obtaining hairy particles supported proline system is described.
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Affiliation(s)
- Xinjuan Li
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007, P. R. China
| | - Maoqin Chen
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007, P. R. China
| | - Beilei Yang
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007, P. R. China
| | - Suli Zhang
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007, P. R. China
| | - Xianbin Jia
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007, P. R. China
| | - Zhiguo Hu
- School of Chemistry and Chemical Engineering
- The Key Laboratory of Green Chemical Media and Reactions
- State Education Ministry of China
- Henan Normal University
- Xinxiang 453007, P. R. China
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35
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Gao Y, Shan Q, Liu J, Wang L, Du Y. The first convergent total synthesis of penarolide sulfate A2, a novel α-glucosidase inhibitor. Org Biomol Chem 2014; 12:2071-9. [DOI: 10.1039/c3ob42364f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Shard A, Kumar R, Saima S, Sharma N, Sinha AK. Amino acid and water-driven tunable green protocol to access S–S/C–S bonds via aerobic oxidative coupling and hydrothiolation. RSC Adv 2014. [DOI: 10.1039/c4ra02909g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Arginine in conjunction with water has been employed as an effective and recyclable organocatalyst for oxidative coupling of thiophenols and hydrothiolation of alkynes.
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Affiliation(s)
- Amit Shard
- NPP Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061, India
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi, India
| | - Rajesh Kumar
- NPP Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061, India
| | - Saima Saima
- NPP Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061, India
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute (Council of Scientific and Industrial Research)
| | - Nidhi Sharma
- NPP Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061, India
| | - Arun K. Sinha
- NPP Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061, India
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi, India
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37
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Karjalainen E, Izquierdo DF, Martí-Centelles V, Luis SV, Tenhu H, García-Verdugo E. An enzymatic biomimetic system: enhancement of catalytic efficiency with new polymeric chiral ionic liquids synthesised by controlled radical polymerisation. Polym Chem 2014. [DOI: 10.1039/c3py01364b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Artar M, Terashima T, Sawamoto M, Meijer EW, Palmans ARA. Understanding the catalytic activity of single-chain polymeric nanoparticles in water. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26970] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Müge Artar
- Institute for Complex Molecular Systems, Eindhoven University of Technology; PO Box 513, 5600 MB Eindhoven The Netherlands
- Laboratory of Macromolecular and Organic Chemistry; Eindhoven University of Technology; PO Box 513, 5600 MB Eindhoven The Netherlands
| | - Takaya Terashima
- Department of Polymer Chemistry; Graduate School of Engineering, Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Mitsuo Sawamoto
- Department of Polymer Chemistry; Graduate School of Engineering, Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - E. W. Meijer
- Institute for Complex Molecular Systems, Eindhoven University of Technology; PO Box 513, 5600 MB Eindhoven The Netherlands
- Laboratory of Macromolecular and Organic Chemistry; Eindhoven University of Technology; PO Box 513, 5600 MB Eindhoven The Netherlands
| | - Anja R. A. Palmans
- Institute for Complex Molecular Systems, Eindhoven University of Technology; PO Box 513, 5600 MB Eindhoven The Netherlands
- Laboratory of Macromolecular and Organic Chemistry; Eindhoven University of Technology; PO Box 513, 5600 MB Eindhoven The Netherlands
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39
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Wang CA, Zhang Y, Shi JY, Wang W. A Self-Supported Polymeric MacMillan Catalyst for Homogeneous Organocatalysis and Heterogeneous Recycling. Chem Asian J 2013; 8:1110-4. [DOI: 10.1002/asia.201300152] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Indexed: 11/09/2022]
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40
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Moore BL, Lu A, Longbottom DA, O'Reilly RK. Immobilization of MacMillan catalyst via controlled radical polymerization: catalytic activity and reuse. Polym Chem 2013. [DOI: 10.1039/c3py21125h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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42
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Huerta E, Stals PJM, Meijer EW, Palmans ARA. Consequences of Folding a Water-Soluble Polymer Around an Organocatalyst. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207123] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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43
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Huerta E, Stals PJM, Meijer EW, Palmans ARA. Consequences of Folding a Water-Soluble Polymer Around an Organocatalyst. Angew Chem Int Ed Engl 2012; 52:2906-10. [DOI: 10.1002/anie.201207123] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 10/10/2012] [Indexed: 11/06/2022]
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44
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Bañón-Caballero A, Guillena G, Nájera C. Cross-Linked-Polymer-SupportedN-{2′-[(Arylsulfonyl)amino][1,1′-binaphthalen]-2-yl}prolinamide as Organocatalyst for the Direct Aldol Intermolecular Reaction under Solvent-Free Conditions. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201200422] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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45
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Wang CA, Zhang ZK, Yue T, Sun YL, Wang L, Wang WD, Zhang Y, Liu C, Wang W. “Bottom-Up” Embedding of the Jørgensen-Hayashi Catalyst into a Chiral Porous Polymer for Highly Efficient Heterogeneous Asymmetric Organocatalysis. Chemistry 2012; 18:6718-23. [DOI: 10.1002/chem.201200753] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Indexed: 11/07/2022]
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46
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Mori H, Endo T. Amino-Acid-Based Block Copolymers by RAFT Polymerization. Macromol Rapid Commun 2012; 33:1090-107. [DOI: 10.1002/marc.201100887] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 02/19/2012] [Indexed: 12/21/2022]
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47
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Zhang Y, Zhang Y, Sun YL, Du X, Shi JY, Wang WD, Wang W. 4-(N,N-Dimethylamino)pyridine-Embedded Nanoporous Conjugated Polymer as a Highly Active Heterogeneous Organocatalyst. Chemistry 2012; 18:6328-34. [DOI: 10.1002/chem.201103028] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 01/21/2012] [Indexed: 11/06/2022]
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48
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Moad G, Rizzardo E, Thang SH. Living Radical Polymerization by the RAFT Process – A Third Update. Aust J Chem 2012. [DOI: 10.1071/ch12295] [Citation(s) in RCA: 825] [Impact Index Per Article: 68.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This paper provides a third update to the review of reversible deactivation radical polymerization (RDRP) achieved with thiocarbonylthio compounds (ZC(=S)SR) by a mechanism of reversible addition-fragmentation chain transfer (RAFT) that was published in June 2005 (Aust. J. Chem. 2005, 58, 379). The first update was published in November 2006 (Aust. J. Chem. 2006, 59, 669) and the second in December 2009 (Aust. J. Chem. 2009, 62, 1402). This review cites over 700 publications that appeared during the period mid 2009 to early 2012 covering various aspects of RAFT polymerization which include reagent synthesis and properties, kinetics and mechanism of polymerization, novel polymer syntheses, and a diverse range of applications. This period has witnessed further significant developments, particularly in the areas of novel RAFT agents, techniques for end-group transformation, the production of micro/nanoparticles and modified surfaces, and biopolymer conjugates both for therapeutic and diagnostic applications.
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49
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Lu A, Smart TP, Epps TH, Longbottom DA, O'Reilly RK. L-Proline Functionalized Polymers Prepared by RAFT Polymerization and Their Assemblies as Supported Organocatalysts. Macromolecules 2011; 44:7233-7241. [PMID: 22053116 DOI: 10.1021/ma201256m] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have prepared a range of well-defined copolymers of styrene and L-proline functionalized styrene (5-11 kDa) using reversible addition-fragmentation chain transfer (RAFT) polymerization techniques and explored their use in supported catalysis. Upon deprotection of the L-proline functionalities, the solution self-assembly of these copolymers was investigated in mixed solvent systems. The resulting assemblies were characterized by dynamic light scattering, transmission electron microscopy (on graphene oxide substrates, along with cryo-TEM and tomography), and scanning electron microscopy. The application of these functional assemblies as supported catalysts for the aldol condensation reaction was explored using cyclohexanone and 4-nitrobenzaldehyde. The rate and selectivity of solution catalysis in our self-assembled system were comparable to those of L-proline, and a significant advantage of our system was that the polymer support could be utilized at lower catalyst loadings with comparable activity and also could be recycled a number of times while maintaining activity and selectivity.
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Affiliation(s)
- Annhelen Lu
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
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50
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Doyagüez EG, Corrales G, Garrido L, Rodríguez-Hernández J, Gallardo A, Fernández-Mayoralas A. Linear Copolymers of Proline Methacrylate and Styrene as Catalysts for Aldol Reactions in Water: Effect of the Copolymer Aggregation on the Enantioselectivity. Macromolecules 2011. [DOI: 10.1021/ma201159n] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Elisa G. Doyagüez
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | - Guillermo Corrales
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | - Leoncio Garrido
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | | | - Alberto Gallardo
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
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