1
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Horton TAR, Wang M, Shaver MP. Polymeric frustrated Lewis pairs in CO 2/cyclic ether coupling catalysis. Chem Sci 2022; 13:3845-3850. [PMID: 35432910 PMCID: PMC8966658 DOI: 10.1039/d2sc00894g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/08/2022] [Indexed: 11/21/2022] Open
Abstract
Frustrated Lewis pairs (FLPs) are now ubiquitous as metal-free catalysts in an array of different chemical transformations. In this paper we show that this reactivity can be transferred to a polymeric system, offering advantageous opportunities at the interface between catalysis and stimuli-responsive materials. Formation of cyclic carbonates from cyclic ethers using CO2 as a C1 feedstock continues to be dominated by metal-based systems. When paired with a suitable nucleophile, discrete aryl or alkyl boranes have shown significant promise as metal-free Lewis acidic alternatives, although catalyst reuse remains illusive. Herein, we leverage the reactivity of FLPs in a polymeric system to promote CO2/cyclic ether coupling catalysis that can be tuned for the desired epoxide or oxetane substrate. Moreover, these macromolecular FLPs can be reused across multiple reaction cycles, further increasing their appeal over analogous small molecule systems. Polymeric frustrated Lewis pairs catalyse the coupling of epoxides and oxetanes with CO2 with high selectivity under mild CO2 pressures across multiple reaction cycles.![]()
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Affiliation(s)
- Thomas A. R. Horton
- Department of Materials, School of Natural Sciences, The University of Manchester, Manchester, UK
- Sustainable Materials Innovation Hub, Royce Hub Building, The University of Manchester, Oxford Road, Manchester, UK
| | - Meng Wang
- Department of Materials, School of Natural Sciences, The University of Manchester, Manchester, UK
- Sustainable Materials Innovation Hub, Royce Hub Building, The University of Manchester, Oxford Road, Manchester, UK
| | - Michael P. Shaver
- Department of Materials, School of Natural Sciences, The University of Manchester, Manchester, UK
- Sustainable Materials Innovation Hub, Royce Hub Building, The University of Manchester, Oxford Road, Manchester, UK
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2
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Xu Z, Ye X, Hu P, Yin M, Lv B, Zhang G, Meng Q, Gao C. Azido-group functionalized graphene oxide/polysulfone mixed matrix ultrafiltration membrane with enhanced interfacial compatibility for efficient water and wastewater treatment. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120162] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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3
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Chen VY, Kwon O. Unified Approach to Furan Natural Products via Phosphine-Palladium Catalysis. Angew Chem Int Ed Engl 2021; 60:8874-8881. [PMID: 33533120 PMCID: PMC8016739 DOI: 10.1002/anie.202015232] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/12/2021] [Indexed: 01/14/2023]
Abstract
Polyalkyl furans are widespread in nature, often performing important biological roles. Despite a plethora of methods for the synthesis of tetrasubstituted furans, the construction of tetraalkyl furans remains non-trivial. The prevalence of alkyl groups in bioactive furan natural products, combined with the desirable bioactivities of tetraalkyl furans, calls for a general synthetic protocol for polyalkyl furans. This paper describes a Michael-Heck approach, using sequential phosphine-palladium catalysis, for the preparation of various polyalkyl furans from readily available precursors. The versatility of this method is illustrated by the total syntheses of nine distinct polyalkylated furan natural products belonging to different classes, namely the furanoterpenes rosefuran, sesquirosefuran, and mikanifuran; the marine natural products plakorsins A, B, and D and plakorsin D methyl ester; and the furan fatty acids 3D5 and hydromumiamicin.
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Affiliation(s)
- Violet Yijang Chen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1659 (USA)
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1659 (USA)
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4
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Chen VY, Kwon O. Unified Approach to Furan Natural Products via Phosphine‐Palladium Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Violet Yijang Chen
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095-1659 USA
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095-1659 USA
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5
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Fu Y, Bergbreiter DE. Recyclable Polyisobutylene‐Bound HMPA as an Organocatalyst in Recyclable Poly(α‐olefin) Solvents. ChemCatChem 2020. [DOI: 10.1002/cctc.202001207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ying‐Hua Fu
- Department of Chemistry Texas A&M University P.O. Box 30012, College Station 77842-3012 Texas USA
| | - David E. Bergbreiter
- Department of Chemistry Texas A&M University P.O. Box 30012, College Station 77842-3012 Texas USA
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6
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Yolsal U, Horton TA, Wang M, Shaver MP. Polymer-supported Lewis acids and bases: Synthesis and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101313] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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7
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Yamamoto Y, Kawaguchi SI, Nishimura M, Sato Y, Shimada Y, Tabuchi A, Nomoto A, Ogawa A. Phosphorus-Recycling Wittig Reaction: Design and Facile Synthesis of a Fluorous Phosphine and Its Reusable Process in the Wittig Reaction. J Org Chem 2020; 85:14684-14696. [PMID: 33166463 DOI: 10.1021/acs.joc.0c01926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study shows that phosphorus sources can be recycled using the appropriate fluorous phosphine in the Wittig reaction. The designed fluorous phosphine, which has an ethylene spacer between its phosphorus atom and the perfluoroalkyl group, was synthesized from air-stable phosphine reagents. The synthesized phosphine can be used for the Wittig reaction process to obtain various alkenes in adequate yields and stereoselectivity. The concomitantly formed fluorous phosphine oxide was extracted from the reaction mixture using a fluorous biphasic system. The fluorous phosphine was regenerated by reducing the fluorous phosphine oxide with diisobutylaluminum hydride. Finally, a series of gram scale phosphorus recycling processes were performed, which included the Wittig reaction, separation, reduction, and reuse.
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Affiliation(s)
- Yuki Yamamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Shin-Ichi Kawaguchi
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho Karatsu, Saga 847-0021, Japan
| | - Misaki Nishimura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Yuki Sato
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Yoshihisa Shimada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akihiro Tabuchi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
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8
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He SJ, Wang JW, Li Y, Xu ZY, Wang XX, Lu X, Fu Y. Nickel-Catalyzed Enantioconvergent Reductive Hydroalkylation of Olefins with α-Heteroatom Phosphorus or Sulfur Alkyl Electrophiles. J Am Chem Soc 2019; 142:214-221. [PMID: 31840520 DOI: 10.1021/jacs.9b09415] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Substantial advances in enantioconvergent C(sp3)-C(sp3) bond formation reactions have been made in recent years through the use of transition-metal-catalyzed cross-coupling reactions of racemic secondary alkyl electrophiles with organometallic reagents. Herein, we report a general process for the asymmetric construction of alkyl-alkyl bonds adjacent to heteroatoms, namely, a nickel-catalyzed enantioconvergent reductive hydroalkylation of olefins with α-heteroatom phosphorus or sulfur alkyl electrophiles. Including the use of readily available olefins, this reaction has considerable advantages, such as mild reaction conditions, a broad substrate scope, and good functional group compatibility, making it a desirable alternative to traditional electrophile-nucleophile cross-coupling reactions.
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Affiliation(s)
- Shi-Jiang He
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM , University of Science and Technology of China , Hefei 230026 , China
| | - Jia-Wang Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM , University of Science and Technology of China , Hefei 230026 , China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM , University of Science and Technology of China , Hefei 230026 , China
| | - Zhe-Yuan Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM , University of Science and Technology of China , Hefei 230026 , China
| | - Xiao-Xu Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM , University of Science and Technology of China , Hefei 230026 , China
| | - Xi Lu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM , University of Science and Technology of China , Hefei 230026 , China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM , University of Science and Technology of China , Hefei 230026 , China
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9
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Convergent Synthesis of Polysubstituted Furans via Catalytic Phosphine Mediated Multicomponent Reactions. Molecules 2019; 24:molecules24244595. [PMID: 31888142 PMCID: PMC6943692 DOI: 10.3390/molecules24244595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/10/2019] [Accepted: 12/13/2019] [Indexed: 11/29/2022] Open
Abstract
Tri- or tetrasubstituted furans have been prepared from terminal activated olefins and acyl chlorides or anhydrides by a multicomponental convergent synthesis mode. Instead of stoichiometric nBu3P, only catalytic nBu3P or nBu3P=O is needed to furnish the furans in modest to excellent yields with a good functional group tolerance under the aid of reducing agent silane. This synthetic method features a silane-driven catalytic intramolecular Wittig reaction as a key annulation step and represents the first successful application of catalytic Wittig reaction in multicomponent cascade reaction.
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10
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Hilton MC, Zhang X, Boyle BT, Alegre-Requena JV, Paton RS, McNally A. Heterobiaryl synthesis by contractive C-C coupling via P(V) intermediates. Science 2019; 362:799-804. [PMID: 30442804 DOI: 10.1126/science.aas8961] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 07/03/2018] [Accepted: 09/25/2018] [Indexed: 12/19/2022]
Abstract
Heterobiaryls composed of pyridine and diazine rings are key components of pharmaceuticals and are often central to pharmacological function. We present an alternative approach to metal-catalyzed cross-coupling to make heterobiaryls using contractive phosphorus C-C couplings, also termed phosphorus ligand coupling reactions. The process starts by regioselective phosphorus substitution of the C-H bonds para to nitrogen in two successive heterocycles; ligand coupling is then triggered via acidic alcohol solutions to form the heterobiaryl bond. Mechanistic studies imply that ligand coupling is an asynchronous process involving migration of one heterocycle to the ipso position of the other around a central pentacoordinate P(V) atom. The strategy can be applied to complex drug-like molecules containing multiple reactive sites and polar functional groups, and also enables convergent coupling of drug fragments and late-stage heteroarylation of pharmaceuticals.
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Affiliation(s)
- Michael C Hilton
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Xuan Zhang
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Benjamin T Boyle
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | | | - Robert S Paton
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA. .,Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, UK
| | - Andrew McNally
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA.
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11
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Han X, Saleh N, Retailleau P, Voituriez A. Phosphine-Catalyzed Reaction between 2-Aminobenzaldehydes and Dialkyl Acetylenedicarboxylates: Synthesis of 1,2-Dihydroquinoline Derivatives and Toward the Development of an Olefination Reaction. Org Lett 2018; 20:4584-4588. [DOI: 10.1021/acs.orglett.8b01870] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xu Han
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Nidal Saleh
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
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12
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Szigeti M, Dobi Z, Soós T. The Goldilocks Principle in Phase Labeling. Minimalist and Orthogonal Phase Tagging for Chromatography-Free Mitsunobu Reaction. J Org Chem 2018; 83:2869-2874. [PMID: 29378404 DOI: 10.1021/acs.joc.8b00014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An inexpensive and chromatography-free Mitsunobu methodology has been developed using low molecular weight and orthogonally phase-tagged reagents, a tert-butyl-tagged highly apolar phosphine, and a water-soluble DIAD analogue. The byproduct of the Mitsunobu reactions can be removed by sequential liquid-liquid extractions using traditional solvents such as hexanes, MeOH, water, and EtOAc. Owing to the orthogonal phase labeling, the spent reagents can be regenerated. This new variant of the Mitsunobu reaction promises to provide an alternative and complementary solution for the well-known separation problem of the Mitsunobu reaction without having to resort to expensive, large molecular weight reagents and chromatography.
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Affiliation(s)
- Mariann Szigeti
- Institute of Organic Chemistry, Research Centre of Natural Sciences, Hungarian Academy of Sciences Magyar tudósok körútja 2, H-1117, Budapest, Hungary
| | - Zoltán Dobi
- Institute of Organic Chemistry, Research Centre of Natural Sciences, Hungarian Academy of Sciences Magyar tudósok körútja 2, H-1117, Budapest, Hungary
| | - Tibor Soós
- Institute of Organic Chemistry, Research Centre of Natural Sciences, Hungarian Academy of Sciences Magyar tudósok körútja 2, H-1117, Budapest, Hungary
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13
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Barlow KJ, Bernabeu V, Hao X, Hughes TC, Hutt OE, Polyzos A, Turner KA, Moad G. Triphenylphosphine-grafted, RAFT-synthesised, porous monoliths as catalysts for Michael addition in flow synthesis. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.09.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Marelli E, Chartoire A, Le Duc G, Nolan SP. Arylation of Amines in Alkane Solvents by using Well-Defined Palladium-N-Heterocyclic Carbene Complexes. ChemCatChem 2015. [DOI: 10.1002/cctc.201500841] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Enrico Marelli
- EaStChem School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Anthony Chartoire
- EaStChem School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Gaetan Le Duc
- EaStChem School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Steven P. Nolan
- Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
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15
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Ding M, Jiang X, Zhang L, Cheng Z, Zhu X. Recent Progress on Transition Metal Catalyst Separation and Recycling in ATRP. Macromol Rapid Commun 2015; 36:1702-21. [PMID: 26079178 DOI: 10.1002/marc.201500085] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 03/31/2015] [Indexed: 12/29/2022]
Abstract
Atom transfer radical polymerization (ATRP) is a versatile and robust tool to synthesize a wide spectrum of monomers with various designable structures. However, it usually needs large amounts of transition metal as the catalyst to mediate the equilibrium between the dormant and propagating species. Unfortunately, the catalyst residue may contaminate or color the resultant polymers, which limits its application, especially in biomedical and electronic materials. How to efficiently and economically remove or reduce the catalyst residue from its products is a challenging and encouraging task. Herein, recent advances in catalyst separation and recycling are highlighted with a focus on (1) highly active ppm level transition metal or metal free catalyzed ATRP; (2) post-purification method; (3) various soluble, insoluble, immobilized/soluble, and reversible supported catalyst systems; and (4) liquid-liquid biphasic catalyzed systems, especially thermo-regulated catalysis systems.
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Affiliation(s)
- Mingqiang Ding
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xiaowu Jiang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Lifen Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Zhenping Cheng
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xiulin Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
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16
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Khamatnurova TV, Zhang D, Suriboot J, Bazzi HS, Bergbreiter DE. Soluble polymer-supported hindered phosphine ligands for palladium-catalyzed aryl amination. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01498g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two structurally different heptane soluble polymers – polyisobutylene and poly(4-alkylstyrene) – are shown to be good supports for hindered biaryldicyclohexyl phosphine Pd(0) aryl amination catalysts.
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Affiliation(s)
| | - Dongmei Zhang
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| | | | - Hassan S. Bazzi
- Department of Chemistry
- Texas A&M University at Qatar
- Doha
- Qatar
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17
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Wang X, Xu Y, Wang F, Wei Y. Functionalized cellulose-supported triphenylphosphine and its application in Suzuki cross-coupling reactions. J Appl Polym Sci 2014. [DOI: 10.1002/app.41427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaoxia Wang
- Department of Chemistry; School of Science, Tianjin University; Tianjin 300072 People's Republic of China
| | - Yanjun Xu
- Department of Chemistry; School of Science, Tianjin University; Tianjin 300072 People's Republic of China
| | - Fang Wang
- Department of Chemistry; School of Science, Tianjin University; Tianjin 300072 People's Republic of China
| | - Yuping Wei
- Department of Chemistry; School of Science, Tianjin University; Tianjin 300072 People's Republic of China
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18
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Designing Phase Selectively Soluble Polymer-Supports for Dimethylaminopyridine and Phosphine-Ligated Pd(0) Catalysts. Top Catal 2014. [DOI: 10.1007/s11244-014-0315-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Use of an isotactic-propylene/hexene copolymer as a new, versatile, soluble support. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.27029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Navalón S, Álvaro M, García H. Polymer- and Ionic Liquid-Containing Palladium: Recoverable Soluble Cross-Coupling Catalysts. ChemCatChem 2013. [DOI: 10.1002/cctc.201300339] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Yang H, Zhou T, Zhang W. A Strategy for Separating and Recycling Solid Catalysts Based on the pH-Triggered Pickering-Emulsion Inversion. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300534] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Yang H, Zhou T, Zhang W. A Strategy for Separating and Recycling Solid Catalysts Based on the pH-Triggered Pickering-Emulsion Inversion. Angew Chem Int Ed Engl 2013; 52:7455-9. [DOI: 10.1002/anie.201300534] [Citation(s) in RCA: 168] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 04/01/2013] [Indexed: 11/10/2022]
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23
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Liu P, Ye Z, Wang WJ, Li BG. Hyperbranched Polyethylenes Encapsulating Self-Supported Palladium(II) Species as Efficient and Recyclable Catalysts for Heck Reaction. Macromolecules 2012. [DOI: 10.1021/ma3021739] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pingwei Liu
- Bharti School of Engineering, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- State Key Lab of Chemical Engineering,
Institute of Polymerization and Polymer Engineering, Department of
Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhibin Ye
- Bharti School of Engineering, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
- Department of Chemistry and Biochemistry, Laurentian University, Sudbury, Ontario P3E 2C6, Canada
| | - Wen-Jun Wang
- State Key Lab of Chemical Engineering,
Institute of Polymerization and Polymer Engineering, Department of
Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Bo-Geng Li
- State Key Lab of Chemical Engineering,
Institute of Polymerization and Polymer Engineering, Department of
Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
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24
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Abstract
Organocatalysts have been extensively studied for the past few decades as alternatives to transition-metal catalysts. Immobilizing organocatalysts on polymer supports allows easy recovery and simple product purification after a reaction. Select examples of recent reports that describe the potential advantages of using soluble polymers to prepare soluble polymer-supported organocatalysts useful in organic synthesis are reviewed.
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Affiliation(s)
- Yun-Chin Yang
- 1Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
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Maity PK, Kainz QM, Faisal S, Rolfe A, Samarakoon TB, Basha FZ, Reiser O, Hanson PR. Intramolecular monomer-on-monomer (MoM) Mitsunobu cyclization for the synthesis of benzofused thiadiazepine-dioxides. Chem Commun (Camb) 2011; 47:12524-6. [PMID: 22027744 PMCID: PMC3271939 DOI: 10.1039/c1cc14807a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The utilization of a monomer-on-monomer (MoM) intramolecular Mitsunobu cyclization reaction employing norbornenyl-tagged (Nb-tagged) reagents is reported for the synthesis of benzofused thiadiazepine-dioxides. Facile purification was achieved via ring-opening metathesis (ROM) polymerization initiated by one of three metathesis catalyst methods: (i) free metathesis catalyst, (ii) surface-initiated catalyst-armed silica, or (iii) surface-initiated catalyst-armed Co/C magnetic nanoparticles.
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Affiliation(s)
- Pradip K. Maity
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS 66047
| | - Quirin M. Kainz
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS 66047
- Institute for Organic Chemistry, University of Regensburg, Universitätsstr. 31, D-93053 Regensburg, Germany
| | - Saqib Faisal
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS 66047
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Science, University of Karachi, Karachi, Pakistan
| | - Alan Rolfe
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS 66047
| | - Thiwanka. B. Samarakoon
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS 66047
| | - Fatima Z. Basha
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Science, University of Karachi, Karachi, Pakistan
| | - Oliver Reiser
- Institute for Organic Chemistry, University of Regensburg, Universitätsstr. 31, D-93053 Regensburg, Germany
| | - Paul R. Hanson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS 66047
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Teng Y, Lu J, Toy PH. Rasta Resin-PPh3-NBniPr2 and its Use in One-Pot Wittig Reaction Cascades. Chem Asian J 2011; 7:351-9. [DOI: 10.1002/asia.201100721] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Indexed: 11/11/2022]
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