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Li M, Xiao Y, Deng P, Yu Y. Near-Infrared Absorbing Para-Azaquinodimethane Conjugated Polymers Synthesized via the Transition-Metal-Free Route toward Efficient Photothermal Conversion. Macromol Rapid Commun 2024; 45:e2300648. [PMID: 38228154 DOI: 10.1002/marc.202300648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/24/2023] [Indexed: 01/18/2024]
Abstract
Conjugated polymers with strong absorption in the second near-infrared (NIR-II) window have multiple applications. However, the development of new type of NIR-II conjugated polymers via facile and green methods remains challenging. Herein, this work reports a mild and convenient transition-metal-free method to synthesize near-infrared absorbing quinoidal conjugated polymers containing para-azaquinodimethane (AQM) moieties. The AQM quinoidal conjugated polymers with unique molecular structures and tunable optoelectronic properties can be synthesized by combining the Knoevenagel polycondensation of aromatic dialdehyde monomers with commercially available 1,4-diacetyl-2,5-piperazinedione and the following alkylation reaction. The resultant polymer PQ-DPP shows remarkable NIR-II absorption with a narrow band gap of about 1.08 eV. PQ-DPP nanoparticles exhibit high photothermal conversion efficiency of up to 48% under 1064 nm laser irradiation (1 W cm-2) endowing this polymer with potential in bio-related applications.
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Affiliation(s)
- Man Li
- Key Laboratory of Advanced Materials Technologies, International (HongKong Macao and Taiwan) Joint Laboratory on Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yufa Xiao
- Key Laboratory of Advanced Materials Technologies, International (HongKong Macao and Taiwan) Joint Laboratory on Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Ping Deng
- Key Laboratory of Advanced Materials Technologies, International (HongKong Macao and Taiwan) Joint Laboratory on Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yan Yu
- Key Laboratory of Advanced Materials Technologies, International (HongKong Macao and Taiwan) Joint Laboratory on Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
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2
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Takimoto L, Goto T, Chen J, Kuwabara J, Kanbara T. Nonstoichiometric Direct Arylation Polymerization of Octafluorobiphenyl with 2,7-Diiodofluorene for Regulating CH Terminals of π-Conjugated Polymer. Macromol Rapid Commun 2024; 45:e2300225. [PMID: 37247852 DOI: 10.1002/marc.202300225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/19/2023] [Indexed: 05/31/2023]
Abstract
Nonstoichiometric direct arylation polycondensation of 2,2',3,3',5,5',6,6'-octafluorobiphenyl with excess of 2,7-diiodo-9,9-dioctyl-9H-fluorene is demonstrated. Pd/Ag dual-catalyst system under water/2-methyltetrahydrofuran biphasic conditions enables direct arylation under mild conditions and promotes the intramolecular transfer of a Pd catalyst walking through the fluorene moiety. The nonstoichiometric direct arylation polycondensation under the optimized reaction conditions produces the corresponding π-conjugated polymer with a high molecular weight and terminal octafluorobiphenyl units at both ends.
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Affiliation(s)
- Lisa Takimoto
- Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Taiki Goto
- Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Junhui Chen
- Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Junpei Kuwabara
- Tsukuba Research Center for Energy Materials Science (TREMS), Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Takaki Kanbara
- Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
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3
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Abstract
Nitroxides, also known as nitroxyl radicals, are long-lived or stable radicals with the general structure R1R2N-O•. The spin distribution over the nitroxide N and O atoms contributes to the thermodynamic stability of these radicals. The presence of bulky N-substituents R1 and R2 prevents nitroxide radical dimerization, ensuring their kinetic stability. Despite their reactivity toward various transient C radicals, some nitroxides can be easily stored under air at room temperature. Furthermore, nitroxides can be oxidized to oxoammonium salts (R1R2N═O+) or reduced to anions (R1R2N-O-), enabling them to act as valuable oxidants or reductants depending on their oxidation state. Therefore, they exhibit interesting reactivity across all three oxidation states. Due to these fascinating properties, nitroxides find extensive applications in diverse fields such as biochemistry, medicinal chemistry, materials science, and organic synthesis. This review focuses on the versatile applications of nitroxides in organic synthesis. For their use in other important fields, we will refer to several review articles. The introductory part provides a brief overview of the history of nitroxide chemistry. Subsequently, the key methods for preparing nitroxides are discussed, followed by an examination of their structural diversity and physical properties. The main portion of this review is dedicated to oxidation reactions, wherein parent nitroxides or their corresponding oxoammonium salts serve as active species. It will be demonstrated that various functional groups (such as alcohols, amines, enolates, and alkanes among others) can be efficiently oxidized. These oxidations can be carried out using nitroxides as catalysts in combination with various stoichiometric terminal oxidants. By reducing nitroxides to their corresponding anions, they become effective reducing reagents with intriguing applications in organic synthesis. Nitroxides possess the ability to selectively react with transient radicals, making them useful for terminating radical cascade reactions by forming alkoxyamines. Depending on their structure, alkoxyamines exhibit weak C-O bonds, allowing for the thermal generation of C radicals through reversible C-O bond cleavage. Such thermally generated C radicals can participate in various radical transformations, as discussed toward the end of this review. Furthermore, the application of this strategy in natural product synthesis will be presented.
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
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4
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King AJ, Zhukhovitskiy AV. A Chain‐Growth Mechanism for Conjugated Polymer Synthesis Facilitated by Dinuclear Complexes with Redox‐Active Ligands. Angew Chem Int Ed Engl 2022; 61:e202206044. [DOI: 10.1002/anie.202206044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Andrew J. King
- Department of Chemistry University of North Carolina at Chapel Hill Murray Hall 121 South Road Chapel Hill NC, 27514 USA
| | - Aleksandr V. Zhukhovitskiy
- Department of Chemistry University of North Carolina at Chapel Hill Murray Hall 121 South Road Chapel Hill NC, 27514 USA
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5
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King AJ, Zhukhovitskiy AV. A Chain‐Growth Mechanism for Conjugated Polymer Synthesis Facilitated by Dinuclear Complexes with Redox‐Active Ligands. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Andrew J. King
- Department of Chemistry University of North Carolina at Chapel Hill Murray Hall 121 South Road Chapel Hill NC, 27514 USA
| | - Aleksandr V. Zhukhovitskiy
- Department of Chemistry University of North Carolina at Chapel Hill Murray Hall 121 South Road Chapel Hill NC, 27514 USA
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6
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Dai C, Yang D, Hu Y, Deng Y, Yang X, Liu Z. A novel boron ketoiminate-based conjugated polymer with large Stokes shift: AIEE feature and cell imaging application. NEW J CHEM 2021. [DOI: 10.1039/d0nj06112c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel π-extended boron ketoiminate-based conjugated polymer with a typical AIEE feature has been successfully synthesized and used for cell imaging application.
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Affiliation(s)
- Chunhui Dai
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation
- East China University of Technology
- Nanchang 330013
- P. R. China
- School of Chemistry
| | - Dongliang Yang
- School of Physical and Mathematical Sciences
- Nanjing Tech University (Nanjing Tech)
- 30 South Puzhu Road
- Nanjing 211816
- P. R. China
| | - Yanling Hu
- School of Electrical and Control Engineering
- Nanjing Polytechnic Institute
- 625 Geguan Road
- Nanjing
- P. R. China
| | - Yue Deng
- School of Chemistry
- Biology, and Materials Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Xiaoman Yang
- School of Chemistry
- Biology, and Materials Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Zhonglin Liu
- School of Chemistry
- Biology, and Materials Science
- East China University of Technology
- Nanchang 330013
- P. R. China
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7
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Özenler S, Kaya H, Elmaci N, Yildiz UH. Transition‐Metal‐Free Direct C‐H Arylation of Thiophene in Aqueous Media via Potassium Peroxymonosulfate. ChemistrySelect 2019. [DOI: 10.1002/slct.201901508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sezer Özenler
- Department of ChemistryIzmir Institute of Technology Izmir 35430 Turkey
| | - Hakan Kaya
- Department of Biotechnology and BioengineeringIzmir Institute of Technology Izmir 35430 Turkey
| | - Nuran Elmaci
- Department of ChemistryIzmir Institute of Technology Izmir 35430 Turkey
| | - Umit Hakan Yildiz
- Department of ChemistryIzmir Institute of Technology Izmir 35430 Turkey
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8
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Georges S, Hashmi OH, Bria M, Zinck P, Champouret Y, Visseaux M. Efficient One-Pot Synthesis of End-Functionalized trans-Stereoregular Polydiene Macromonomers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b01520] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Sébastien Georges
- CNRS, ENSCL, Centrale Lille, Univ. Artois, Univ. Lille, UMR 8181 - UCCS
- Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Obaid Hasan Hashmi
- CNRS, ENSCL, Centrale Lille, Univ. Artois, Univ. Lille, UMR 8181 - UCCS
- Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Marc Bria
- CCM RMN, Univ. Lille, F-59000 Lille, France
| | - Philippe Zinck
- CNRS, ENSCL, Centrale Lille, Univ. Artois, Univ. Lille, UMR 8181 - UCCS
- Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Yohan Champouret
- CNRS, ENSCL, Centrale Lille, Univ. Artois, Univ. Lille, UMR 8181 - UCCS
- Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Marc Visseaux
- CNRS, ENSCL, Centrale Lille, Univ. Artois, Univ. Lille, UMR 8181 - UCCS
- Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
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9
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Baranov DS, Uvarov MN, Kazantsev MS, Glebov EM, Nevostruev DA, Mostovich EA, Antonova OV, Kulik LV. A Concise and Efficient Route to Electron-Accepting 2,2′-[2,2′-Arenediylbis(11-oxoanthra[1,2- b]thiophene-6-ylidene)]dipropanedinitriles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800275] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Denis S. Baranov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion; Siberian Branch of the Russian Academy of Science; 630090 Novosibirsk Russia
- Novosibirsk State University; 630090 Novosibirsk Russia
| | - Mikhail N. Uvarov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion; Siberian Branch of the Russian Academy of Science; 630090 Novosibirsk Russia
| | - Maxim S. Kazantsev
- Novosibirsk State University; 630090 Novosibirsk Russia
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry; Siberian Branch of the Russian Academy of Science; 630090 Novosibirsk Russia
| | - Evgeni M. Glebov
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion; Siberian Branch of the Russian Academy of Science; 630090 Novosibirsk Russia
- Novosibirsk State University; 630090 Novosibirsk Russia
| | - Danil A. Nevostruev
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion; Siberian Branch of the Russian Academy of Science; 630090 Novosibirsk Russia
| | - Evgeny A. Mostovich
- Novosibirsk State University; 630090 Novosibirsk Russia
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry; Siberian Branch of the Russian Academy of Science; 630090 Novosibirsk Russia
| | - Olga V. Antonova
- Nikolaev Institute of Inorganic Chemistry; Siberian Branch of Russian Academy of Sciences; 630090 Novosibirsk Russia
| | - Leonid V. Kulik
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion; Siberian Branch of the Russian Academy of Science; 630090 Novosibirsk Russia
- Novosibirsk State University; 630090 Novosibirsk Russia
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10
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Nakahama T, Mukaiyama T, Kitagawa D, Kobatake S. Solvent effect of fluorescence on/off switching of diarylethene linked to excited-state intramolecular proton transfer fluorophore. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2928-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Luo C, Liu Y, Zhang Q, Cai X. Hyperbranched conjugated polymers containing 1,3-butadiene units: metal-free catalyzed synthesis and selective chemosensors for Fe3+ ions. RSC Adv 2017. [DOI: 10.1039/c7ra00540g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Hyperbranched polymers containing 1,3-butadiene units in main chain were synthesized by transition-metal-free catalysis and investigated as chemosensors for Fe3+ ions.
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Affiliation(s)
- Chuxin Luo
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Yating Liu
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Qi Zhang
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Xuediao Cai
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
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12
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Li X, Li D, Li Y, Chang H, Gao W, Wei W. Homocoupling of heteroaryl/aryl/alkyl Grignard reagents: I2-promoted, or Ni- or Pd- or Cu- or nano-Fe-based salt catalyzed. RSC Adv 2016. [DOI: 10.1039/c6ra17859f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Five efficient processes for the homo-coupling of various Grignard reagents including aryl, heteroaryl and aliphatic ones in the presence of I2, Pd(OAc)2, Ni(OAc)2, CuI, and nano-Fe3O4 were developed, respectively.
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Affiliation(s)
- Xing Li
- Department of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- People's Republic of China
| | - Dongjun Li
- Department of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- People's Republic of China
| | - Yingjun Li
- Department of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- People's Republic of China
| | - Honghong Chang
- Department of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- People's Republic of China
| | - Wenchao Gao
- Department of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- People's Republic of China
| | - Wenlong Wei
- Department of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- People's Republic of China
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13
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Link A, Fischer C, Sparr C. Direkte Umwandlung von Estern in Arene mit 1,5-difunktionellen Organomagnesium-Reagentien. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505414] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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14
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Link A, Fischer C, Sparr C. Direct Transformation of Esters into Arenes with 1,5-Bifunctional Organomagnesium Reagents. Angew Chem Int Ed Engl 2015; 54:12163-6. [DOI: 10.1002/anie.201505414] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Indexed: 11/12/2022]
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15
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Sibbel F, Daniliuc CG, Studer A. 2,2′-Bis-substituted Biphenyls by the Addition of Nucleophiles to Benzyne Followed by In Situ Oxidative Homocoupling. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500456] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Matsumura Y, Fukuda K, Inagi S, Tomita I. Parallel Synthesis of Photoluminescent π-Conjugated Polymers by Polymer Reactions of an Organotitanium Polymer with a Titanacyclopentadiene Unit. Macromol Rapid Commun 2015; 36:660-4. [DOI: 10.1002/marc.201400667] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 12/30/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Yoshimasa Matsumura
- Interdisciplinary Graduate School of Science and Engineering; Tokyo Institute of Technology; Nagatsuta-cho 4259-G1-9 Midori-ku, Yokohama 226-8502 Japan
| | - Katsura Fukuda
- Interdisciplinary Graduate School of Science and Engineering; Tokyo Institute of Technology; Nagatsuta-cho 4259-G1-9 Midori-ku, Yokohama 226-8502 Japan
| | - Shinsuke Inagi
- Interdisciplinary Graduate School of Science and Engineering; Tokyo Institute of Technology; Nagatsuta-cho 4259-G1-9 Midori-ku, Yokohama 226-8502 Japan
| | - Ikuyoshi Tomita
- Interdisciplinary Graduate School of Science and Engineering; Tokyo Institute of Technology; Nagatsuta-cho 4259-G1-9 Midori-ku, Yokohama 226-8502 Japan
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17
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Li-Yuan Bao R, Zhao R, Shi L. Progress and developments in the turbo Grignard reagent i-PrMgCl·LiCl: a ten-year journey. Chem Commun (Camb) 2015; 51:6884-900. [DOI: 10.1039/c4cc10194d] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The structural and kinetic perspectives of i-PrMgCl·LiCl help to rationalize the trends of its unique reactivity and selectivity.
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Affiliation(s)
- Robert Li-Yuan Bao
- Institute of Organic Chemistry
- The Academy of Fundamental and Interdisciplinary Science
- Harbin Institute of Technology
- Harbin 150080
- P. R. China
| | - Rong Zhao
- Institute of Organic Chemistry
- The Academy of Fundamental and Interdisciplinary Science
- Harbin Institute of Technology
- Harbin 150080
- P. R. China
| | - Lei Shi
- Institute of Organic Chemistry
- The Academy of Fundamental and Interdisciplinary Science
- Harbin Institute of Technology
- Harbin 150080
- P. R. China
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18
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Bonnet F, Dyer HE, El Kinani Y, Dietz C, Roussel P, Bria M, Visseaux M, Zinck P, Mountford P. Bis(phenolate)amine-supported lanthanide borohydride complexes for styrene and trans-1,4-isoprene (co-)polymerisations. Dalton Trans 2015; 44:12312-25. [DOI: 10.1039/c5dt00252d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New bis(phenolate)amine-supported neodymium borohydride complexes and their previously reported samarium analogues were tested as catalysts for the polymerisation of styrene and isoprene.
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Affiliation(s)
- Fanny Bonnet
- Unité de Catalyse et de Chimie du Solide
- CNRS
- University of Lille 1
- Science and Technology
- 59655 Villeneuve d'Ascq
| | - Hellen E. Dyer
- Chemistry Research Laboratory
- University of Oxford
- Oxford OX1 3TA
- UK
| | - Yassine El Kinani
- Unité de Catalyse et de Chimie du Solide
- CNRS
- University of Lille 1
- Science and Technology
- 59655 Villeneuve d'Ascq
| | - Carin Dietz
- Laboratory of Polymer Chemistry
- Department of Chemical Engineering and Chemistry
- University of Technology Eindhoven
- 5600 MB Eindhoven
- The Netherlands
| | - Pascal Roussel
- Unité de Catalyse et de Chimie du Solide
- CNRS
- University of Lille 1
- Science and Technology
- 59655 Villeneuve d'Ascq
| | - Marc Bria
- Centre Commun de Mesure RMN
- University of Lille 1
- Science and Technology
- 59655 Villeneuve d'Ascq
- France
| | - Marc Visseaux
- Unité de Catalyse et de Chimie du Solide
- CNRS
- University of Lille 1
- Science and Technology
- 59655 Villeneuve d'Ascq
| | - Philippe Zinck
- Unité de Catalyse et de Chimie du Solide
- CNRS
- University of Lille 1
- Science and Technology
- 59655 Villeneuve d'Ascq
| | - Philip Mountford
- Chemistry Research Laboratory
- University of Oxford
- Oxford OX1 3TA
- UK
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19
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Murarka S, Möbus J, Erker G, Mück-Lichtenfeld C, Studer A. TEMPO-mediated homocoupling of aryl Grignard reagents: mechanistic studies. Org Biomol Chem 2015; 13:2762-7. [DOI: 10.1039/c4ob02689f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of TEMPO mediated oxidative homo-coupling of aryl Grignard reagents to biphenyls is investigated in detail by experimental and computational studies.
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Affiliation(s)
- Sandip Murarka
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität
- 48149 Münster
- Germany
| | - Juri Möbus
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität
- 48149 Münster
- Germany
| | - Gerhard Erker
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität
- 48149 Münster
- Germany
| | - Christian Mück-Lichtenfeld
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität
- 48149 Münster
- Germany
- Center for Multiscale Theory and Computation
| | - Armido Studer
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität
- 48149 Münster
- Germany
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20
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Dai C, Yang D, Zhang W, Bao B, Cheng Y, Wang L. Far-red/near-infrared fluorescent conjugated polymer nanoparticles with size-dependent chirality and cell imaging applications. Polym Chem 2015. [DOI: 10.1039/c5py00344j] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We prepared a series of novel chiral far-red/near-infrared fluorescent CPNs with different nanoparticle sizes, which show size-dependent chirality and are successfully employed for cell imaging.
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Affiliation(s)
- Chunhui Dai
- Key Lab of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Dongliang Yang
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials
- Nanjing University of Posts and Telecommunications
- Nanjing 210023
- China
| | - Wenjie Zhang
- Key Lab of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Biqing Bao
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials
- Nanjing University of Posts and Telecommunications
- Nanjing 210023
- China
| | - Yixiang Cheng
- Key Lab of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials
- Nanjing University of Posts and Telecommunications
- Nanjing 210023
- China
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21
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Zhu Y, Xiong T, Han W, Shi Y. Copper-catalyzed oxidative homo- and cross-coupling of Grignard reagents using diaziridinone. Org Lett 2014; 16:6144-7. [PMID: 25420218 PMCID: PMC4260645 DOI: 10.1021/ol5030103] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Indexed: 11/28/2022]
Abstract
Transition-metal-catalyzed cross-coupling reactions are among the most powerful synthetic transformations. This paper describes an efficient copper-catalyzed homo- and cross-coupling of Grignard reagents with di-tert-butyldiaziridinone as oxidant under mild conditions, giving the coupling products in good to excellent yields. The reaction process has a broad substrate scope and is also effective for the C(sp)-C(sp(3)) coupling.
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Affiliation(s)
| | | | | | - Yian Shi
- Department of Chemistry, Colorado State
University, Fort Collins, Colorado 80523, United States
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22
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Affiliation(s)
- Chang-Liang Sun
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Green Chemistry Center, Peking University , 202 Chengfu Road, 098#, Beijing 100871, China
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23
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Liptrot DJ, Hill PMS, Mahon MF. Accessing the Single-Electron Manifold: Magnesium-mediated Hydrogen Release from Silanes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Liptrot DJ, Hill PMS, Mahon MF. Accessing the Single-Electron Manifold: Magnesium-mediated Hydrogen Release from Silanes. Angew Chem Int Ed Engl 2014; 53:6224-7. [DOI: 10.1002/anie.201403208] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Indexed: 11/09/2022]
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25
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Li Z, Badaeva E, Ugrinov A, Kilina S, Sun W. Platinum Chloride Complexes Containing 6-[9,9-Di(2-ethylhexyl)-7-R-9H-fluoren-2-yl]-2,2′-bipyridine Ligand (R = NO2, CHO, Benzothiazol-2-yl, n-Bu, Carbazol-9-yl, NPh2): Tunable Photophysics and Reverse Saturable Absorption. Inorg Chem 2013; 52:7578-92. [DOI: 10.1021/ic400683u] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhongjing Li
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
| | - Ekaterina Badaeva
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
| | - Angel Ugrinov
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
| | - Svetlana Kilina
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
| | - Wenfang Sun
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota
58108-6050, United States
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26
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Kiefer G, Jeanbourquin L, Severin K. Oxidative Coupling Reactions of Grignard Reagents with Nitrous Oxide. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302471] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Kiefer G, Jeanbourquin L, Severin K. Oxidative Coupling Reactions of Grignard Reagents with Nitrous Oxide. Angew Chem Int Ed Engl 2013; 52:6302-5. [DOI: 10.1002/anie.201302471] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Indexed: 11/09/2022]
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28
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Sui B, Kim B, Zhang Y, Frazer A, Belfield KD. Highly selective fluorescence turn-on sensor for fluoride detection. ACS APPLIED MATERIALS & INTERFACES 2013; 5:2920-2923. [PMID: 23581748 DOI: 10.1021/am400588w] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Through click chemistry, triazole and triazolium groups have been explored to recognize anions through C-H···A(-) hydrogen-bonding complexion. Herein, we demonstrate evidence of fluoride-induced deprotonation of a C-H bond and its application in fluoride detection. The combination of fluorene and triazolium units produced a highly selective fluorescence turn-on prototype sensor for fluoride. The interactions between the C-H bond and F(-) were studied by fluorescence spectroscopy and (1)H NMR titrations. Test papers were prepared to detect fluoride in aqueous media at concentrations down to 1.9 ppm, important for estimating whether the fluoride concentration in drinking water is at a safe level.
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Affiliation(s)
- Binglin Sui
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, USA
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29
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Murarka S, Studer A. Radical/Anionic SRN1-Type Polymerization for Preparation of Oligoarenes. Angew Chem Int Ed Engl 2012; 51:12362-6. [DOI: 10.1002/anie.201206096] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 09/19/2012] [Indexed: 11/06/2022]
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30
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Murarka S, Studer A. Radikalische/anionische SRN1-Typ-Polymerisation zur Herstellung von Oligoarenen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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31
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Wertz S, Studer A. Metal-Free 2,2,6,6-Tetramethylpiperidin-1-yloxy Radical (TEMPO) Catalyzed Aerobic Oxidation of Hydroxylamines and Alkoxyamines to Oximes and Oxime Ethers. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201200175] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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32
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Intemann JJ, Hellerich ES, Tlach BC, Ewan MD, Barnes CA, Bhuwalka A, Cai M, Shinar J, Shinar R, Jeffries-EL M. Altering the Conjugation Pathway for Improved Performance of Benzobisoxazole-Based Polymer Guest Emitters in Polymer Light-Emitting Diodes. Macromolecules 2012. [DOI: 10.1021/ma300821m] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeremy J. Intemann
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Emily S. Hellerich
- Ames Laboratory-USDOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| | - Brian C. Tlach
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Monique D. Ewan
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Charles A. Barnes
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Achala Bhuwalka
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Min Cai
- Ames Laboratory-USDOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| | - Joseph Shinar
- Ames Laboratory-USDOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| | - Ruth Shinar
- Microelectronics Research Center
and Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Malika Jeffries-EL
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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33
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Sui A, Shi X, Wu S, Tian H, Geng Y, Wang F. Controlled Synthesis of Polyfluorenes via Kumada Catalyst Transfer Polycondensation with Ni(acac)2/dppp as the Catalyst. Macromolecules 2012. [DOI: 10.1021/ma3009299] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aiguo Sui
- State Key Laboratory of Polymer Physics
and Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xincui Shi
- State Key Laboratory of Polymer Physics
and Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Shupeng Wu
- State Key Laboratory of Polymer Physics
and Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hongkun Tian
- State Key Laboratory of Polymer Physics
and Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Yanhou Geng
- State Key Laboratory of Polymer Physics
and Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Fosong Wang
- State Key Laboratory of Polymer Physics
and Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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34
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Jenny NM, Wang H, Neuburger M, Fuchs H, Chi L, Mayor M. Synthesis and Solid-State Investigations of Oligo-Phenylene-Ethynylene Structures with Halide End-Groups. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Steinmetz M, Ueda K, Grimme S, Yamaguchi J, Kirchberg S, Itami K, Studer A. Mechanistic Studies on the Pd-catalyzed Direct CH Arylation of 2-Substituted Thiophene Derivatives with Arylpalladium Bipyridyl Complexes. Chem Asian J 2012; 7:1256-60. [DOI: 10.1002/asia.201101011] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Indexed: 01/28/2023]
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36
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Yuan C, Fang Q. A new procedure for the synthesis of π-conjugated polymers via ligand-free iron(iii)-catalyzed oxidative homocoupling reaction of grignard reagents. RSC Adv 2012. [DOI: 10.1039/c2ra21127k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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37
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Hayashi M, Shibuya M, Iwabuchi Y. Oxidative Conversion of Silyl Enol Ethers to α,β-Unsaturated Ketones Employing Oxoammonium Salts. Org Lett 2011; 14:154-7. [DOI: 10.1021/ol2029417] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Masaki Hayashi
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aobayama, Sendai 980-8578, Japan, and Process Technology Research Laboratories, Daiichi Sankyo Co., Ltd., 1-12-1 Shinomiya, Hiratsuka, Kanagawa 254-0014, Japan
| | - Masatoshi Shibuya
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aobayama, Sendai 980-8578, Japan, and Process Technology Research Laboratories, Daiichi Sankyo Co., Ltd., 1-12-1 Shinomiya, Hiratsuka, Kanagawa 254-0014, Japan
| | - Yoshiharu Iwabuchi
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aobayama, Sendai 980-8578, Japan, and Process Technology Research Laboratories, Daiichi Sankyo Co., Ltd., 1-12-1 Shinomiya, Hiratsuka, Kanagawa 254-0014, Japan
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38
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Murarka S, Studer A. Transition Metal-Free TEMPO-Catalyzed Oxidative Cross- Coupling of Nitrones with Alkynyl-Grignard Reagents. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100327] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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39
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Traina CA, Bakus RC, Bazan GC. Design and synthesis of monofunctionalized, water-soluble conjugated polymers for biosensing and imaging applications. J Am Chem Soc 2011; 133:12600-7. [PMID: 21751809 DOI: 10.1021/ja202877q] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Water-soluble conjugated polymers with controlled molecular weight characteristics, absence of ionic groups, high emission quantum yields, and end groups capable of selective reactions of wide scope are desirable for improving their performance in various applications and, in particular, fluorescent biosensor schemes. The synthesis of such a structure is described herein. 2-Bromo-7-iodofluorene with octakis(ethylene glycol) monomethyl ether chains at the 9,9'-positions, i.e., compound 4, was prepared as the reactive premonomer. A high-yielding synthesis of the organometallic initiator (dppe)Ni(Ph)Br (dppe = 1,2-bis(diphenylphosphino)ethane) was designed and implemented, and the resulting product was characterized by single-crystal X-ray diffraction techniques. Polymerization of 4 by (dppe)Ni(Ph)Br can be carried out in less than 30 s, affording excellent control over the average molecular weight and polydispersity of the product. Quenching of the polymerization with [2-(trimethylsilyl)ethynyl]magnesium bromide yields silylacetylene-terminated water-soluble poly(fluorene) with a photoluminescence quantum efficiency of 80%. Desilylation, followed by copper-catalyzed azide-alkyne cycloaddition reaction, yields a straightforward route to introduce a wide range of specific end group functionalities. Biotin was used as an example. The resulting biotinylated conjugated polymer binds to streptavidin and acts as a light-harvesting chromophore to optically amplify the emission of Alexa Fluor-488 chromophores bound onto the streptavidin. Furthermore, the biotin end group makes it possible to bind the polymer onto streptavidin-functionalized cross-linked agarose beads and thereby incorporate a large number of optically active segments.
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Affiliation(s)
- Christopher A Traina
- Department of Materials and Chemistry and Biochemistry, Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, United States
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40
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Kakuchi T, Chen Y, Kitakado J, Mori K, Fuchise K, Satoh T. Organic Superbase as an Efficient Catalyst for Group Transfer Polymerization of Methyl Methacrylate. Macromolecules 2011. [DOI: 10.1021/ma200720p] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Toyoji Kakuchi
- Division of Biotechnology and Macromolecular Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Yougen Chen
- Division of Biotechnology and Macromolecular Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Junsuke Kitakado
- Division of Biotechnology and Macromolecular Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Kota Mori
- Division of Biotechnology and Macromolecular Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Keita Fuchise
- Division of Biotechnology and Macromolecular Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Toshifumi Satoh
- Division of Biotechnology and Macromolecular Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
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41
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Tebben L, Studer A. Nitroxides: applications in synthesis and in polymer chemistry. Angew Chem Int Ed Engl 2011; 50:5034-68. [PMID: 21538729 DOI: 10.1002/anie.201002547] [Citation(s) in RCA: 505] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Indexed: 01/23/2023]
Abstract
This Review describes the application of nitroxides to synthesis and polymer chemistry. The synthesis and physical properties of nitroxides are discussed first. The largest section focuses on their application as stoichiometric and catalytic oxidants in organic synthesis. The oxidation of alcohols and carbanions, as well as oxidative C-C bond-forming reactions are presented along with other typical oxidative transformations. A section is also dedicated to the extensive use of nitroxides as trapping reagents for C-centered radicals in radical chemistry. Alkoxyamines derived from nitroxides are shown to be highly useful precursors of C-centered radicals in synthesis and also in polymer chemistry. The last section discusses the basics of nitroxide-mediated radical polymerization (NMP) and also highlights new developments in the synthesis of complex polymer architectures.
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Affiliation(s)
- Ludger Tebben
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
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42
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Murarka S, Studer A. Zinc Triflate Catalyzed Aerobic Cross-Dehydrogenative Coupling (CDC) of Alkynes with Nitrones: A New Entry to Isoxazoles. Org Lett 2011; 13:2746-9. [DOI: 10.1021/ol200849k] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sandip Murarka
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
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43
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Maji MS, Murarka S, Studer A. Transition-Metal-Free Sonogashira-Type Coupling of ortho-Substituted Aryl and Alkynyl Grignard Reagents by Using 2,2,6,6-Tetramethylpiperidine-N-oxyl Radical as an Oxidant. Org Lett 2010; 12:3878-81. [DOI: 10.1021/ol1015702] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Modhu Sudan Maji
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraβe 40, 48149 Münster, Germany
| | - Sandip Murarka
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraβe 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraβe 40, 48149 Münster, Germany
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44
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Kirchberg S, Fröhlich R, Studer A. Synthese von 1,2,3-trisubstituierten Indanen durch diastereoselektive Palladium-katalysierte Oxyarylierung von Indenen mit Arylboronsäuren und Nitroxiden. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002214] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Kirchberg S, Fröhlich R, Studer A. 1,2,3-Trisubstituted Indanes by Highly Diastereoselective Palladium-Catalyzed Oxyarylation of Indenes with Arylboronic Acids and Nitroxides. Angew Chem Int Ed Engl 2010; 49:6877-80. [DOI: 10.1002/anie.201002214] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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