1
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Yeganeh-Salman A, Yeung J, Miao L, Stephan DW. Coordination chemistry and FLP reactivity of 1,1- and 1,2-bis-boranes. Dalton Trans 2024; 53:1178-1189. [PMID: 38108120 DOI: 10.1039/d3dt03660j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Coordination chemistry and frustrated Lewis pair (FLP) chemistry have been most commonly studied using monodentate Lewis acids. In this paper, we examine the corresponding reactions employing the 1,1- and 1,2-bis-boranes, PhCH2CH(B(C6F5)2)21 and Me3SiCH(B(C6F5)2)CH2B(C6F5)22, respectively. Coordination of isocyanide to these species results in the formation of the products RCH(B(C6F5)2CNtBu)CH2(B(C6F5)2CNtBu) (R = Ph 3, Me3Si 4). The rearrangement of 1 to give the 1,2-bis-borane adduct 3 was probed and attributed to a donor-induced retrohydroboration and subsequent hydroboration. The analogous reaction of 1 is evident in efforts to use the Gutman-Beckett method to assess its Lewis acidity. However, in combination with tBu3P, bis-boranes 1 and 2 form FLPs and react with H2 to give [tBu3PH][PhCH2CH(B(C6F5)2)2(μ-H)] 5a and [tBu3PH][Me3SiCH(B(C6F5)2)CH2(B(C6F5)2)(μ-H)] 6, respectively. Reactions of 1 and 2 with various donors and PhCCH were shown to give deprotonation and addition products, depending on the nature of the base. However, in the case of 1, products resulting from retrohydroboration, and subsequent hydroboration are evident. Several of these alkyne products are crystallographically characterized.
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Affiliation(s)
- Amir Yeganeh-Salman
- Department of Chemistry, University of Toronto, 80 St. George St, Toronto, ON, M5S3H6, Canada.
| | - Jason Yeung
- Department of Chemistry, University of Toronto, 80 St. George St, Toronto, ON, M5S3H6, Canada.
| | - Linkun Miao
- Department of Chemistry, University of Toronto, 80 St. George St, Toronto, ON, M5S3H6, Canada.
| | - Douglas W Stephan
- Department of Chemistry, University of Toronto, 80 St. George St, Toronto, ON, M5S3H6, Canada.
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang, P. R. China
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2
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Kim H, Qu ZW, Grimme S, Al-Zuhaika N, Stephan DW. Phosphino-Phosphination Reactions: Frustrated Lewis Pair Reactivity of Phosphino-Phosphonium Cations with Alkynes. Angew Chem Int Ed Engl 2023; 62:e202312587. [PMID: 37682527 DOI: 10.1002/anie.202312587] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 09/09/2023]
Abstract
The phosphino-phosphonium cations of the form [R3 PPR'2 ]+ are labile and provide access to the constituent Lewis acidic and Lewis basic fragments. This permits frustrated Lewis pair-type addition reactions to alkynes, affording unprecedented phosphino-phosphination reactions and giving cations of the form [cis-R3 PCHC(R'')PR'2 ]+ . This reactivity is further adapted to prepare several examples of a rare class of dissymmetric cis-olefin-linked bidentate phosphines.
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Affiliation(s)
- Hyehwang Kim
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Zheng-Wang Qu
- Mulliken Center for Theoretical Chemistry, Clausius Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstrasse 4, 53115, Bonn, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Clausius Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstrasse 4, 53115, Bonn, Germany
| | - Nahil Al-Zuhaika
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Douglas W Stephan
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315211, Zhejiang, China
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3
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Ratzenböck K, Fischer SM, Slugovc C. Poly(ether)s derived from oxa-Michael polymerization: a comprehensive review. MONATSHEFTE FUR CHEMIE 2023. [DOI: 10.1007/s00706-023-03049-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
AbstractPoly(ether)s represent an important class of polymers and are typically formed by ring-opening polymerization, Williamson ether synthesis, or self-condensation of alcohols. The oxa-Michael reaction presents another method to form poly(ether)s with additional functional groups in the polymer backbone starting from di- or triols and electron deficient olefins such as acrylates, sulfones, or acrylamides. However, research on oxa-Michael polymerization is still limited. Herein, we outline the principles of the oxa-Michael polymerization and focus on the synthesis and preparation of poly(ether-sulfone)s, poly(ether-ester)s, poly(ether)s, and poly(ether-amide)s. Further, challenges as well as future perspectives of the oxa-Michael polymerization are discussed.
Graphical abstract
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4
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Yao H, Song Y, Huang W, Jiang L, Jiang Q, Xue X, Jiang B, Yang H. Preparing Degradable Polymers with Promising Mechanical Properties by Hydrogen Transfer Polymerization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hongxin Yao
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Yiye Song
- Changzhou University Huaide College, Jingjiang, Jiangsu, P. R. China 214500
| | - Wenyan Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Li Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Qimin Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Xiaoqiang Xue
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Bibiao Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Hongjun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
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5
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Fischer SM, Kaschnitz P, Slugovc C. Tris(2,4,6-trimethoxyphenyl)phosphine – a Lewis base able to compete with phosphazene bases in catalysing oxa-Michael reactions. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01335e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The performance of the fairly airstable and commercially available “Lewis base beast” TTMPP in catalysing oxa-Michael reactions and the control of its activity by dilution and solvent choice are disclosed.
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Affiliation(s)
- Susanne M. Fischer
- Christian Doppler Laboratory for Organocatalysis in Polymerization, Stremayrgasse 9, 8010 Graz, Austria
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Petra Kaschnitz
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Christian Slugovc
- Christian Doppler Laboratory for Organocatalysis in Polymerization, Stremayrgasse 9, 8010 Graz, Austria
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
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6
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Jiang Q, Zhao L, Du Y, Huang W, Xue X, Yang H, Jiang L, Jiang Q, Jiang B. Synthesis of thermoresponsive nonconjugated fluorescent branched poly(ether amide)s via oxa-Michael addition polymerization. Polym Chem 2022. [DOI: 10.1039/d1py01437d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Novel thermoresponsive nonconjugated fluorescent branched poly(ether amide)s with tunable LCST via t-BuP2-catalyzed oxa-Michael addition polymerization of N,N′-methylenebis(acrylamide) with triols.
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Affiliation(s)
- Qimin Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Liang Zhao
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Yongzhuang Du
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Wenyan Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Xiaoqiang Xue
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Hongjun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Li Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
| | - Qilin Jiang
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, UK EH9 3FJ
| | - Bibiao Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu, P. R. China 213164
- Changzhou University Huaide College, Jingjiang, Jiangsu, P. R. China 214500
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7
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Fischer SM, Renner S, Boese AD, Slugovc C. Electron-rich triarylphosphines as nucleophilic catalysts for oxa-Michael reactions. Beilstein J Org Chem 2021; 17:1689-1697. [PMID: 34367347 PMCID: PMC8313974 DOI: 10.3762/bjoc.17.117] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 07/07/2021] [Indexed: 11/29/2022] Open
Abstract
Electron-rich triarylphosphines, namely 4-(methoxyphenyl)diphenylphosphine (MMTPP) and tris(4-trimethoxyphenyl)phosphine (TMTPP), outperform commonly used triphenylphosphine (TPP) in catalyzing oxa-Michael additions. A matrix consisting of three differently strong Michael acceptors and four alcohols of varying acidity was used to assess the activity of the three catalysts. All test reactions were performed with 1 mol % catalyst loading, under solvent-free conditions and at room temperature. The results reveal a decisive superiority of TMTPP for converting poor and intermediate Michael acceptors such as acrylamide and acrylonitrile and for converting less acidic alcohols like isopropanol. With stronger Michael acceptors and more acidic alcohols, the impact of the more electron-rich catalysts is less pronounced. The experimental activity trend was rationalized by calculating the Michael acceptor affinities of all phosphine-Michael acceptor combinations. Besides this parameter, the acidity of the alcohol has a strong impact on the reaction speed. The oxidation stability of the phosphines was also evaluated and the most electron-rich TMTPP was found to be only slightly more sensitive to oxidation than TPP. Finally, the catalysts were employed in the oxa-Michael polymerization of 2-hydroxyethyl acrylate. With TMTPP polymers characterized by number average molar masses of about 1200 g/mol at room temperature are accessible. Polymerizations carried out at 80 °C resulted in macromolecules containing a considerable share of Rauhut-Currier-type repeat units and consequently lower molar masses were obtained.
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Affiliation(s)
- Susanne M Fischer
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
- Christian Doppler Laboratory for Organocatalysis in Polymerization, Stremayrgasse 9, 8010 Graz, Austria
| | - Simon Renner
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - A Daniel Boese
- Physical and Theoretical Chemistry, Institute of Chemistry, University of Graz, Heinrichstrasse 28/IV, 8010 Graz, Austria
| | - Christian Slugovc
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
- Christian Doppler Laboratory for Organocatalysis in Polymerization, Stremayrgasse 9, 8010 Graz, Austria
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8
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Yang X, Xie H, Xu Z, Feng J, Fu Q, Li H, Jia Y. Malononitrile‐involved Michael addition polymerization: An efficient and facile route for cyano‐rich polyesters with programmable thermal and mechanical properties. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaoxia Yang
- School of Textile Materials and Engineering Wuyi University Jiangmen China
- China‐Australia Institute for Advanced Materials and Manufacturing Jiaxing University Jiaxing China
| | - Hongyan Xie
- China‐Australia Institute for Advanced Materials and Manufacturing Jiaxing University Jiaxing China
| | - Zhiguang Xu
- China‐Australia Institute for Advanced Materials and Manufacturing Jiaxing University Jiaxing China
| | - Jiabing Feng
- China‐Australia Institute for Advanced Materials and Manufacturing Jiaxing University Jiaxing China
| | - Qiwei Fu
- College of Material and Textile Engineering Jiaxing University Jiaxing China
| | - Haidong Li
- College of Material and Textile Engineering Jiaxing University Jiaxing China
| | - Yongtang Jia
- School of Textile Materials and Engineering Wuyi University Jiangmen China
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9
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Tran-Do ML, Eid N, Totée C, Gimello O, Améduri B. Does the oxa-Michael reaction of 2-trifluoromethacrylic acid lead to fluorinated polyesters? Polym Chem 2021. [DOI: 10.1039/d1py00685a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Trifluoromethacrylic acid (MAF) is a peculiar fluorinated functional monomer.
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Affiliation(s)
| | - Nadim Eid
- Institut Charles Gerhardt
- Univ. Montpellier
- CNRS
- ENSCM
- Montpellier
| | - Cédric Totée
- Institut Charles Gerhardt
- Univ. Montpellier
- CNRS
- ENSCM
- Montpellier
| | - Olinda Gimello
- Institut Charles Gerhardt
- Univ. Montpellier
- CNRS
- ENSCM
- Montpellier
| | - Bruno Améduri
- Institut Charles Gerhardt
- Univ. Montpellier
- CNRS
- ENSCM
- Montpellier
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10
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Ziegenbalg N, Lohwasser R, D'Andola G, Adermann T, Brendel JC. Oxa-Michael polyaddition of vinylsulfonylethanol for aliphatic polyethersulfones. Polym Chem 2021. [DOI: 10.1039/d1py00256b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactive AB-type monomer vinylsulfonylethanol polymerizes in the presence of common organic and inorganic bases forming a novel aliphatic polyethersulfone. A detailed analysis revealed different mechanisms for the organic and inorganic catalysts.
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Affiliation(s)
- Nicole Ziegenbalg
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | | | | | | | - Johannes C. Brendel
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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11
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Yang H, Zhang J, Song Y, Jiang L, Jiang Q, Xue X, Huang W, Jiang B. Copolymerize Conventional Vinyl Monomers to Degradable and Water‐Soluble Copolymers with a Fluorescence Property. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000263] [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)
- Hongjun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and Engineering Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu 213164 P. R. China
| | - Jiadong Zhang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and Engineering Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu 213164 P. R. China
| | - Yiye Song
- Changzhou University Huaide College Changzhou University Jingjiang Jiangsu 214500 P. R. China
| | - Li Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and Engineering Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu 213164 P. R. China
| | - Qimin Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and Engineering Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu 213164 P. R. China
| | - Xiaoqiang Xue
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and Engineering Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu 213164 P. R. China
| | - Wenyan Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and Engineering Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu 213164 P. R. China
| | - Bibiao Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and Engineering Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu 213164 P. R. China
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12
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Jiang Q, Du Y, Zhang Y, Zhao L, Jiang L, Huang W, Yang H, Xue X, Jiang B. pH
and thermo responsive aliphatic tertiary amine chromophore hyperbranched poly(amino ether ester)s from
oxa‐Michael
addition polymerization. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200432] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Qimin Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
| | - Yongzhuang Du
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
| | - YuanLiang Zhang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
| | - Liang Zhao
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
| | - Li Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
| | - Wenyan Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
| | - Hongjun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
| | - Xiaoqiang Xue
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
| | - Bibiao Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou University Changzhou China
- Huaide College Changzhou University Jingjiang China
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13
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Ratzenböck K, Pahovnik D, Slugovc C. Step-growth polymerisation of alkyl acrylates via concomitant oxa-Michael and transesterification reactions. Polym Chem 2020. [DOI: 10.1039/d0py01271h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
An auto-tandem catalytic approach towards the preparation of poly(ester–ether)s from simple alkyl acrylates and diols is introduced.
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Affiliation(s)
- Karin Ratzenböck
- Christian Doppler Laboratory for Organocatalysis in Polymerization
- A 8010 Graz
- Austria
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
| | - David Pahovnik
- National Institute of Chemistry
- Department of Polymer Chemistry and Technology
- 1000 Ljubljana
- Slovenia
| | - Christian Slugovc
- Christian Doppler Laboratory for Organocatalysis in Polymerization
- A 8010 Graz
- Austria
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
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14
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Si H, Wang K, Song B, Qin A, Tang BZ. Organobase-catalysed hydroxyl–yne click polymerization. Polym Chem 2020. [DOI: 10.1039/d0py00095g] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient organobase (DABCO)-catalysed hydroxyl–yne click polymerization is successfully developed under mild conditions.
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Affiliation(s)
- Han Si
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
| | - Kaojin Wang
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
| | - Bo Song
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- Center for Aggregation-Induced Emission
- South China University of Technology
- Guangzhou 510640
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15
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Jiang Q, Zhang Y, Du Y, Tang M, Jiang L, Huang W, Yang H, Xue X, Jiang B. Preparation of hyperbranched polymers by oxa-Michael addition polymerization. Polym Chem 2020. [DOI: 10.1039/c9py01686d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hyperbranched polymers with high molecular weights were synthesized by t-BuP2-catalyzed oxa-Michael addition polymerization of trifunctional hydroxyl and diacrylate monomers.
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Affiliation(s)
- Qimin Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
| | - YuanLiang Zhang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
| | - Yongzhuang Du
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
| | - Maotong Tang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
| | - Li Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
| | - Wenyan Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
| | - Hongjun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
| | - Xiaoqiang Xue
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
| | - Bibiao Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou 213164
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16
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Love D, Kim K, Domaille DW, Williams O, Stansbury J, Musgrave C, Bowman C. Catalyst-free, aza-Michael polymerization of hydrazides: polymerizability, kinetics, and mechanistic origin of an α-effect. Polym Chem 2019; 10:5790-5804. [PMID: 31749894 PMCID: PMC6865069 DOI: 10.1039/c9py01199d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the powerful nature of the aza-Michael reaction for generating C-N linkages and bioactive moieties, the bis-Michael addition of 1° amines remains ineffective for the synthesis of functional, step-growth polymers due to the drastic reduction in reactivity of the resulting 2° amine mono-addition adduct. In this study, a wide range of commercial hydrazides are shown to effectively undergo the bis-Michael reaction with divinyl sulfone (DVS) and 1,6-hexanediol diacrylate (HDA) under catalyst-free, thermal conditions to afford moderate to high molecular weight polymers with M n = 3.8-34.5 kg mol-1. The hydrazide-Michael reactions exhibit two distinctive, conversion-dependent kinetic regimes that are 2nd-order overall, in contrast to the 3rd-order nature of amines previously reported. The mono-addition rate constant was found to be 37-fold greater than that of the bis-addition at 80 °C for the reaction between benzhydrazide and DVS. A significant majority (12 of 15) of the hydrazide derivatives used here show excellent bis-Michael reactivity and achieve >97% conversions after 5 days. This behavior is consistent with calculations that show minimal variance of electron density on the N-nucleophile among the derivatives studied. Reactivity differences between hydrazides and hexylamine are also explored. Overall, the difference in reactivity between hydrazides and amines is attributed to the adjacent nitrogen atom in hydrazides that acts as an efficient hydrogen-bond donor that facilitates intramolecular proton-transfer following the formation of the zwitterion intermediate. This effect not only activates the Michael acceptor but also coordinates with additional Michael acceptors to form an intermolecular reactant complex.
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Affiliation(s)
- Dillon Love
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Kangmin Kim
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Dylan W. Domaille
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, USA
| | - Olivia Williams
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Jeffrey Stansbury
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, USA
- School of Dental Medicine, Craniofacial Biology, University of Colorado Denver, Aurora, Colorado 80045, USA
| | - Charles Musgrave
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Christopher Bowman
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, USA
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Yang HJ, Chai CQ, Zuo YK, Huang JF, Song YY, Jiang L, Huang WY, Jiang QM, Xue XQ, Jiang BB. Hybrid Copolymerization via the Combination of Proton Transfer and Ring-opening Polymerization. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-020-2341-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Yang H, Zhang J, Zuo Y, Song Y, Huang W, Jiang L, Jiang Q, Xue X, Jiang B. Anionic Hybrid Copolymerization via Concurrent Oxa‐Michael Addition and Ring‐Opening Polymerizations. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900147] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hongjun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
- Key Laboratory of Polymer Processing Engineering of Ministry of Education South China University of Technology Guangzhou 510640 P. R. China
| | - Jiadong Zhang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
| | - Yongkang Zuo
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
| | - Yiye Song
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
- Changzhou University Huaide College Jingjiang Jiangsu 214500 P. R. China
| | - Wenyan Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
| | - Li Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
| | - Qimin Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
| | - Xiaoqiang Xue
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
| | - Bibiao Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou University Changzhou Jiangsu 213164 P. R. China
- Changzhou University Huaide College Jingjiang Jiangsu 214500 P. R. China
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20
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Controllable functionalization of hydroxyl-terminated self-assembled monolayers via catalytic oxa-Michael reaction. Biointerphases 2018; 13:06E407. [DOI: 10.1116/1.5052052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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21
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Hong M, Chen J, Chen EYX. Polymerization of Polar Monomers Mediated by Main-Group Lewis Acid-Base Pairs. Chem Rev 2018; 118:10551-10616. [PMID: 30350583 DOI: 10.1021/acs.chemrev.8b00352] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of new or more sustainable, active, efficient, controlled, and selective polymerization reactions or processes continues to be crucial for the synthesis of important polymers or materials with specific structures or functions. In this context, the newly emerged polymerization technique enabled by main-group Lewis pairs (LPs), termed as Lewis pair polymerization (LPP), exploits the synergy and cooperativity between the Lewis acid (LA) and Lewis base (LB) sites of LPs, which can be employed as frustrated Lewis pairs (FLPs), interacting LPs (ILPs), or classical Lewis adducts (CLAs), to effect cooperative monomer activation as well as chain initiation, propagation, termination, and transfer events. Through balancing the Lewis acidity, Lewis basicity, and steric effects of LPs, LPP has shown several unique advantages or intriguing opportunities compared to other polymerization techniques and demonstrated its broad polar monomer scope, high activity, control or livingness, and complete chemo- or regioselectivity, as well as its unique application in materials chemistry. These advances made in LPP are comprehensively reviewed, with the scope of monomers focusing on heteroatom-containing polar monomers, while the polymerizations mediated by main-group LAs and LBs separately that are most relevant to the LPP are also highlighted or updated. Examples of applying the principles of the LPP and LP chemistry as a new platform for advancing materials chemistry are highlighted, and currently unmet challenges in the field of the LPP, and thus the suggested corresponding future research directions, are also presented.
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Affiliation(s)
- Miao Hong
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
| | - Jiawei Chen
- Department of Chemistry , Columbia University , 3000 Broadway , New York , New York 10027 , United States
| | - Eugene Y-X Chen
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States
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22
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Murase T, Matsuoka SI, Suzuki M. Hydrogen-transfer and condensation–addition polymerizations of acrylic acid. Polym Chem 2018. [DOI: 10.1039/c8py00271a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen-transfer and condensation–addition polymerizations of acrylic acid catalyzed by strong Brønsted acids to produce aliphatic polyesters, graft copolymers, and poly(ester-ether)s.
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Affiliation(s)
- Takuya Murase
- Department of Life Science and Applied Chemistry
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya
- Japan
| | - Shin-ichi Matsuoka
- Department of Life Science and Applied Chemistry
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya
- Japan
| | - Masato Suzuki
- Department of Life Science and Applied Chemistry
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya
- Japan
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23
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Yang H, Zuo Y, Zhang J, Song Y, Huang W, Xue X, Jiang Q, Sun A, Jiang B. Phosphazene-catalyzed oxa-Michael addition click polymerization. Polym Chem 2018. [DOI: 10.1039/c8py01089g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports a new type of click chemistry via a phosphazene bases-catalyzed oxa-Michael addition of an alcohol to an acrylate.
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Affiliation(s)
- Hongjun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou
| | - YongKang Zuo
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou
| | - Jiadong Zhang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou
| | - Yiye Song
- Changzhou University Huaidei College
- Jingjiang
- P. R. China
| | - Wenyan Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou
| | - Xiaoqiang Xue
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou
| | - Qimin Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou
| | - Aibin Sun
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou
| | - Bibiao Jiang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials
- School of Materials Science and Engineering
- Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering
- Changzhou University
- Changzhou
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Matsuoka SI, Hoshiyama Y, Tsuchimoto K, Suzuki M. Oxa-Michael Addition Reaction and Polymerization of Morita–Baylis–Hillman Adducts and Derivatives. CHEM LETT 2017. [DOI: 10.1246/cl.170794] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shin-ichi Matsuoka
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555
| | - Yuki Hoshiyama
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555
| | - Kanae Tsuchimoto
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555
| | - Masato Suzuki
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555
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25
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Bakkali-Hassani C, Rieger E, Vignolle J, Wurm FR, Carlotti S, Taton D. Expanding the scope of N-heterocyclic carbene-organocatalyzed ring-opening polymerization of N-tosyl aziridines using functional and non-activated amine initiators. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.07.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Recyclable and scalable organocatalytic transesterification of polysaccharides in a mixed solvent of 1-ethyl-3-methylimidazolium acetate and dimethyl sulfoxide. Polym J 2017. [DOI: 10.1038/pj.2017.49] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Gowda RR, Chen EYX. Chemoselective Lewis pair polymerization of renewable multivinyl-functionalized γ-butyrolactones. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2017; 375:20170003. [PMID: 28739962 PMCID: PMC5540837 DOI: 10.1098/rsta.2017.0003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
Multivinyl-functionalized γ-butyrolactones, γ-vinyl-γ-methyl-α-methylene-γ-butyrolactone (γVMMBL) and γ-allyl-γ-methyl-α-methylene-γ-butyrolactone (γAMMBL), have been synthesized from biorenewable ethyl levulinate and effectively polymerized by Lewis pairs consisting of an organic N-heterocyclic carbene Lewis base and a strong organo-Lewis acid E(C6F5)3 (E = Al, B). This Lewis pair polymerization is quantitatively chemoselective, proceeds exclusively via polyaddition across the conjugated α-methylene double bond without participation of the γ-vinyl or γ-allyl double bond, and produces high-molecular-weight functionalized polymers with unimodal molecular-weight distributions. The Al-based Lewis pair produces a polymer with approximately 5.5 times higher molecular weight than that produced by the B-based Lewis pair. The resulting vinyl-functionalized polymers are soluble in common organic solvents and stable at room temperature, and can be thermally cured into crosslinked materials.This article is part of the themed issue 'Frustrated Lewis pair chemistry'.
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Affiliation(s)
- Ravikumar R Gowda
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA
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29
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Affiliation(s)
- Rong Tong
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia 24061, United States
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30
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Falivene L, Cavallo L. Guidelines To Select the N-Heterocyclic Carbene for the Organopolymerization of Monomers with a Polar Group. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02646] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Laura Falivene
- KAUST Calaysis Center (KCC), Physical Sciences & Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- KAUST Calaysis Center (KCC), Physical Sciences & Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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31
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Strasser S, Wappl C, Slugovc C. Solvent-free macrocyclisation by nucleophile-mediated oxa-Michael addition polymerisation of divinyl sulfone and alcohols. Polym Chem 2017. [DOI: 10.1039/c7py00152e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Divinyl sulfone and di- or multifunctional alcohols quantitatively react within minutes under solvent-less conditions upon addition of 4-dimethylaminopyridine.
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Affiliation(s)
- Simone Strasser
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
- A 8010 Graz
- Austria
| | - Christina Wappl
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
- A 8010 Graz
- Austria
| | - Christian Slugovc
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
- A 8010 Graz
- Austria
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32
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Matsuoka SI, Awano N, Nakazawa M, Suzuki M. Tail-to-tail dimerization and Rauhut-Currier reaction of disubstituted Michael acceptors catalyzed by N-heterocyclic carbene. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.031] [Citation(s) in RCA: 16] [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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33
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Nakatake D, Yazaki R, Ohshima T. Chemoselective Transesterification of Acrylate Derivatives for Functionalized Monomer Synthesis Using a Hard Zinc Alkoxide Generation Strategy. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600737] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Daiki Nakatake
- Graduate school of Pharmaceutical Sciences; Kyushu University; Maidashi Higashi-ku 812-8582 Fukuoka Japan
| | - Ryo Yazaki
- Graduate school of Pharmaceutical Sciences; Kyushu University; Maidashi Higashi-ku 812-8582 Fukuoka Japan
| | - Takashi Ohshima
- Graduate school of Pharmaceutical Sciences; Kyushu University; Maidashi Higashi-ku 812-8582 Fukuoka Japan
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Gowda RR, Chen EYX. Organocatalytic and Chemoselective Polymerization of Multivinyl-Functionalized γ-Butyrolactones. ACS Macro Lett 2016; 5:772-776. [PMID: 35614656 DOI: 10.1021/acsmacrolett.6b00370] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Achieving complete chemoselectivity in the polymerization of multivinyl polar monomers is an important yet challenging task, currently achievable only by metal- or metalloid-mediated polymerization processes but in a noncatalytic fashion. Now this work shows that organic N-heterocyclic carbene (NHC) catalysts effect rapid, chemoselective, and catalytic polymerization of multivinyl-functionalized γ-butyrolactones, particularly γ-vinyl-α-methylene-γ-butyrolactone (VMBL). Thus, the NHC-catalyzed polymerization of VMBL not only is quantitatively chemoselective, proceeding exclusively via polyaddition across the conjugated α-methylene double bond while leaving the γ-vinyl double bond intact, but also requires only an exceptionally low catalyst loading of 50 ppm, thus, exhibiting a remarkably high catalyst turnover frequency of 80000 h-1 and producing on average 33.6 polymer chains of Mn = 73.8 kg/mol per NHC molecule. The resulting PVMBL can be either thermally cured into cross-linked materials or postfunctionalized with the thiol-ene "click" reaction to achieve complete conversion of the pendant vinyl group on every repeat unit into the corresponding thioether.
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Affiliation(s)
- Ravikumar R. Gowda
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Eugene Y.-X. Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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35
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Ottou WN, Sardon H, Mecerreyes D, Vignolle J, Taton D. Update and challenges in organo-mediated polymerization reactions. Prog Polym Sci 2016. [DOI: 10.1016/j.progpolymsci.2015.12.001] [Citation(s) in RCA: 196] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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36
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Hong M, Tang X, Falivene L, Caporaso L, Cavallo L, Chen EYX. Proton-Transfer Polymerization by N-Heterocyclic Carbenes: Monomer and Catalyst Scopes and Mechanism for Converting Dimethacrylates into Unsaturated Polyesters. J Am Chem Soc 2016; 138:2021-35. [PMID: 26779897 DOI: 10.1021/jacs.5b13019] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
This contribution presents a full account of experimental and theoretical/computational investigations into the N-heterocyclic carbene (NHC)-catalyzed proton-transfer polymerization (HTP) that converts common dimethacrylates (DMAs) containing no protic groups into unsaturated polyesters. This new HTP proceeds through the step-growth propagation cycles via enamine intermediates, consisting of the proposed conjugate addition-proton transfer-NHC release fundamental steps. This study examines the monomer and catalyst scopes as well as the fundamental steps involved in the overall HTP mechanism. DMAs having six different types of linkages connecting the two methacrylates have been polymerized into the corresponding unsaturated polyesters. The most intriguing unsaturated polyester of the series is that based on the biomass-derived furfuryl dimethacrylate, which showed a unique self-curing ability. Four MeO- and Cl-substituted TPT (1,3,4-triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene) derivatives as methanol insertion products, (Rx)TPT(MeO/H) (R = MeO, Cl; x = 2, 3), and two free carbenes (catalysts), (OMe2)TPT and (OMe3)TPT, have been synthesized, while (OMe2)TPT(MeO/H) and (OMe2)TPT have also been structurally characterized. The structure/reactivity relationship study revealed that (OMe2)TPT, being both a strong nucleophile and a good leaving group, exhibits the highest HTP activity and also produced the polyester with the highest Mn, while the Cl-substituted TPT derivatives are least active and efficient. Computational studies have provided mechanistic insights into the tail-to-tail dimerization coupling step as a suitable model for the propagation cycle of the HTP. The extensive energy profile was mapped out, and the experimentally observed unicity of the TPT-based catalysts was satisfactorily explained with the thermodynamic formation of key spirocyclic species.
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Affiliation(s)
- Miao Hong
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523-1872, United States
| | - Xiaoyan Tang
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523-1872, United States
| | - Laura Falivene
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, Kaust Catalysis Center, Thuwal 23955-6900, Saudi Arabia.,Dipartimento di Chimica e Biologia, Università di Salerno , Via Papa Paolo Giovanni II, I-84084, Fisciano, Italy
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia, Università di Salerno , Via Papa Paolo Giovanni II, I-84084, Fisciano, Italy
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, Kaust Catalysis Center, Thuwal 23955-6900, Saudi Arabia.,Dipartimento di Chimica e Biologia, Università di Salerno , Via Papa Paolo Giovanni II, I-84084, Fisciano, Italy
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523-1872, United States
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Naumann S, Klein J, Wang D, Buchmeiser MR. Convenient preparation of high molecular weight poly(dimethylsiloxane) using thermally latent NHC-catalysis: a structure-activity correlation. Beilstein J Org Chem 2015; 11:2261-6. [PMID: 26664650 PMCID: PMC4660969 DOI: 10.3762/bjoc.11.246] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 11/04/2015] [Indexed: 11/23/2022] Open
Abstract
The polymerization of octamethylcyclotetrasiloxane (D4) is investigated using several five-, six- and seven-membered N-heterocyclic carbenes (NHCs). The catalysts are delivered in situ from thermally susceptible CO2 adducts. It is demonstrated that the polymerization can be triggered from a latent state by mild heating, using the highly nucleophilic 1,3,4,5-tetramethylimidazol-2-ylidene as organocatalyst. This way, high molecular weight PDMS is prepared (up to >400 000 g/mol, 1.6 < Ð M < 2.5) in yields >95%, using low catalyst loadings (0.2-0.1 mol %). Furthermore, the results suggest that a nucleophilic, zwitterionic mechanism is in operation, in preference to purely anionic polymerization.
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Affiliation(s)
- Stefan Naumann
- Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Johannes Klein
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34–36, Berlin, Germany
| | - Dongren Wang
- Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Michael R Buchmeiser
- Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
- Institute of Textile Chemistry and Chemical Fibers, Körschtalstrasse 26, D-73770 Denkendorf, Germany
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38
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Wang L, Chen J, Huang Y. Highly Enantioselective Aza‐Michael Reaction between Alkyl Amines and β‐Trifluoromethyl β‐Aryl Nitroolefins. Angew Chem Int Ed Engl 2015; 54:15414-8. [DOI: 10.1002/anie.201508371] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Leming Wang
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University, Shenzhen Graduate School, Shenzhen, 518055 (China) http://web.pkusz.edu.cn/huang
| | - Jiean Chen
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University, Shenzhen Graduate School, Shenzhen, 518055 (China) http://web.pkusz.edu.cn/huang
| | - Yong Huang
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University, Shenzhen Graduate School, Shenzhen, 518055 (China) http://web.pkusz.edu.cn/huang
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Wang L, Chen J, Huang Y. Highly Enantioselective Aza-Michael Reaction between Alkyl Amines and β-Trifluoromethyl β-Aryl Nitroolefins. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508371] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Matsuoka SI, Nakazawa M, Suzuki M. Expanding the Scope of the Tail-to-Tail Dimerization of Vinyl Compounds Catalyzed by N-Heterocyclic Carbene. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150048] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Shin-ichi Matsuoka
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
| | - Masanori Nakazawa
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
| | - Masato Suzuki
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
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41
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Matsuoka SI. N-Heterocyclic carbene-catalyzed dimerization, cyclotetramerization and polymerization of Michael acceptors. Polym J 2015. [DOI: 10.1038/pj.2015.59] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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42
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Chen J, Meng S, Wang L, Tang H, Huang Y. Highly enantioselective sulfa-Michael addition reactions using N-heterocyclic carbene as a non-covalent organocatalyst. Chem Sci 2015; 6:4184-4189. [PMID: 29218184 PMCID: PMC5707481 DOI: 10.1039/c5sc00878f] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 04/17/2015] [Indexed: 11/21/2022] Open
Abstract
We report the first asymmetric sulfa-Michael addition (SMA) reactions using a chiral N-heterocyclic carbene (NHC) as a non-covalent organocatalyst. We demonstrate that a triazolium salt derived NHC functions as an excellent Brønsted base to promote enantioselective carbon-sulfur bond formation. The reaction is applicable to a wide range of thiols and electrophilic olefins. Notably, quaternary chiral centers bearing both an S atom and a CF3 group were synthesized with excellent asymmetric control. Mechanistic studies suggest that the facial discrimination is likely to be guided by non-covalent interactions: hydrogen bonding and π-π stacking.
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Affiliation(s)
- Jiean Chen
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University , Shenzhen Graduate School , Shenzhen , 518055 , China .
| | - Sixuan Meng
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University , Shenzhen Graduate School , Shenzhen , 518055 , China .
| | - Leming Wang
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University , Shenzhen Graduate School , Shenzhen , 518055 , China .
| | - Hongmei Tang
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University , Shenzhen Graduate School , Shenzhen , 518055 , China .
| | - Yong Huang
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University , Shenzhen Graduate School , Shenzhen , 518055 , China .
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43
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Ottou WN, Bourichon D, Vignolle J, Wirotius AL, Robert F, Landais Y, Sotiropoulos JM, Miqueu K, Taton D. From the N-Heterocyclic Carbene-Catalyzed Conjugate Addition of Alcohols to the Controlled Polymerization of (Meth)acrylates. Chemistry 2015; 21:9447-53. [PMID: 26013759 DOI: 10.1002/chem.201500594] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Indexed: 11/10/2022]
Abstract
Among various N-heterocyclic carbenes (NHCs) tested, only 1,3-bis(tert-butyl)imidazol-2-ylidene (NHC(tBu) ) proved to selectively promote the catalytic conjugate addition of alcohols onto (meth)acrylate substrates. This rather rare example of NHC-catalyzed 1,4-addition of alcohols was investigated as a simple means to trigger the polymerization of both methyl methacrylate and methyl acrylate (MMA and MA, respectively). Well-defined α-alkoxy poly(methyl (meth)acrylate) (PM(M)A) chains, the molar masses of which could be controlled by the initial [(meth)acrylate]0/[ROH]0 molar ratio, were ultimately obtained in N,N-dimethylformamide at 25 °C. A hydroxyl-terminated poly(ethylene oxide) (PEO-OH) macro-initiator was also employed to directly access PEO-b-PMMA amphiphilic block copolymers. Investigations into the reaction mechanism by DFT calculations revealed the occurrence of two competitive concerted pathways, involving either the activation of the alcohol or that of the monomer by NHC(tBu) .
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Affiliation(s)
- Winnie Nzahou Ottou
- CNRS/Univ. Bordeaux, LCPO, UMR 5629, 16 avenue Pey-Berland, 33607 Pessac cedex (France), Fax: (+33) 54-00-08-487
| | - Damien Bourichon
- CNRS/Univ. Pau&des Pays de l'Adour, IPREM, UMR 5254, 2 Avenue du Président P. Angot, 64053 Pau cedex 09 (France), Fax: (+33) 59-40-78-62
| | - Joan Vignolle
- CNRS/Univ. Bordeaux, LCPO, UMR 5629, 16 avenue Pey-Berland, 33607 Pessac cedex (France), Fax: (+33) 54-00-08-487
| | - Anne-Laure Wirotius
- CNRS/Univ. Bordeaux, LCPO, UMR 5629, 16 avenue Pey-Berland, 33607 Pessac cedex (France), Fax: (+33) 54-00-08-487
| | - Fredéric Robert
- CNRS/Univ. Bordeaux, ISM, UMR 5255, 351 cours de la Libération, 33400 Talence (France), Fax: (+33) 54-00-06-286
| | - Yannick Landais
- CNRS/Univ. Bordeaux, ISM, UMR 5255, 351 cours de la Libération, 33400 Talence (France), Fax: (+33) 54-00-06-286
| | - Jean-Marc Sotiropoulos
- CNRS/Univ. Pau&des Pays de l'Adour, IPREM, UMR 5254, 2 Avenue du Président P. Angot, 64053 Pau cedex 09 (France), Fax: (+33) 59-40-78-62
| | - Karinne Miqueu
- CNRS/Univ. Pau&des Pays de l'Adour, IPREM, UMR 5254, 2 Avenue du Président P. Angot, 64053 Pau cedex 09 (France), Fax: (+33) 59-40-78-62.
| | - Daniel Taton
- CNRS/Univ. Bordeaux, LCPO, UMR 5629, 16 avenue Pey-Berland, 33607 Pessac cedex (France), Fax: (+33) 54-00-08-487.
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Tang J, Chen EYX. Organopolymerization of naturally occurring Tulipalin B: a hydroxyl-functionalized methylene butyrolactone. Org Chem Front 2015. [DOI: 10.1039/c5qo00262a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Naturally occurring, OH-containing, tri-functional Tulipalin B has been successfully polymerized by N-heterocyclic carbene and phosphazene superbase catalysts into polymers with Mn up to 13.2 kg mol−1.
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Affiliation(s)
- Jing Tang
- Department of Chemistry
- Colorado State University
- Fort Collins
- USA
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45
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Strasser S, Slugovc C. Nucleophile-mediated oxa-Michael addition reactions of divinyl sulfone – a thiol-free option for step-growth polymerisations. Catal Sci Technol 2015. [DOI: 10.1039/c5cy01527h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first example of an aa–bb-type nucleophile-mediated oxa-Michael addition polymerisation reaction is reported.
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Affiliation(s)
- Simone Strasser
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
- NAWI Graz
- A-8010 Graz
- Austria
| | - Christian Slugovc
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
- NAWI Graz
- A-8010 Graz
- Austria
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46
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Naumann S, Dove AP. N-Heterocyclic carbenes as organocatalysts for polymerizations: trends and frontiers. Polym Chem 2015. [DOI: 10.1039/c5py00145e] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review spotlights current areas of high interest for NHC-based polymerization research.
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