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Zou B, Stellmach KA, Luo SM, Gebresilassie FL, Jung H, Zhang CK, Bass AD, Janzen DE, Cao DD. Improved Syntheses of Halogenated Benzene-1,2,3,4-Tetracarboxylic Diimides. J Org Chem 2022; 87:13605-13614. [PMID: 36198127 DOI: 10.1021/acs.joc.2c01241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The preparation of halogenated benzene-1,2,3,4-tetracarboxylic diimide derivatives is challenging because of the possibility of competitive incorrect cyclizations and SNAr reactivity. Here, we demonstrate that bypassing traditional cyclic anhydrides and instead directly reacting dihalobenzene-1,2,3,4-tetracarboxylic acids with primary amines in acetic acid solvent successfully provides a range of desirable ortho-diimide products in good yields. Furthermore, we demonstrate that sterically challenging N-derivatizations can be readily achieved under microwave reactor conditions. The halogenated diimides described here are attractive building blocks for organic materials chemistry.
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Affiliation(s)
- Brian Zou
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Kellie A Stellmach
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Stella M Luo
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Feven L Gebresilassie
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Healeam Jung
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Cathy K Zhang
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Adam D Bass
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Daron E Janzen
- Department of Chemistry and Biochemistry, Saint Catherine University, 2004 Randolph Avenue, Saint Paul, Minnesota 55105, United States
| | - Dennis D Cao
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
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Xu Q, Shi X, Li Y, Zeng F, Deng P, Su Z. Novel acetylene‐terminated thermosetting polyisoimides with excellent solubility and performed as efficient heat shields composites. J Appl Polym Sci 2022. [DOI: 10.1002/app.51559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qinging Xu
- School of Materials Science and Engineering Changchun University of Science and Technology Changchun China
| | - Xincui Shi
- School of Chemistry and Environmental Engineering Changchun University of Science and Technology Changchun China
| | - Yunhui Li
- School of Chemistry and Environmental Engineering Changchun University of Science and Technology Changchun China
| | - Fanming Zeng
- School of Materials Science and Engineering Changchun University of Science and Technology Changchun China
- Collaborative Innovation Center of Optical Materials and Chemistry Changchun University of Science and Technology Changchun China
| | - Pengyang Deng
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun China
| | - Zhongmin Su
- School of Materials Science and Engineering Changchun University of Science and Technology Changchun China
- Collaborative Innovation Center of Optical Materials and Chemistry Changchun University of Science and Technology Changchun China
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Luo SM, Stellmach KA, Ikuzwe SM, Cao DD. Redox-Active Heteroacene Chromophores Derived from a Nonlinear Aromatic Diimide. J Org Chem 2019; 84:10362-10370. [DOI: 10.1021/acs.joc.9b01502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stella M. Luo
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Kellie A. Stellmach
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Stella M. Ikuzwe
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
| | - Dennis D. Cao
- Chemistry Department, Macalester College, 1600 Grand Avenue, Saint Paul, Minnesota 55105, United States
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Wang W, Chen G, Fang X. Phenylethynyl-terminated oligoimides with ultra-low melt viscosity derived from 1,4-bis(3,4-dicarboxy phenoxy)benzene dianhydride. HIGH PERFORM POLYM 2019. [DOI: 10.1177/0954008319832347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Most of the existing polyimide oligomers for resin transfer molding (RTM) processing exhibited high melt viscosity, which can only maintain below 1 Pa·s at 280°C for 2 h, leading to very high process temperatures. So novel RTM-type oligomers with lower and stable melt viscosities are more desirable. Three series of thermoset oligoimides derived from 1,4-bis(3,4-dicarboxy phenoxy)benzene dianhydride and three different aromatic diamines were prepared herein. The diamines included 4,4′-oxydianiline, 2,2′-bis(trifluoromethyl)benzidine (TFDB), and 2-phenyl-4,4′-diaminodiphenyl ether ( p-ODA). 4-Phenylethynylphthalic anhydride was used as an endcapping reagent. Effects of the chemical structures and molecular weights of the oligoimides on their aggregated structures, melt processability, and the thermal and mechanical properties of the cured films were then systematically investigated. X-Ray diffraction results indicated that ODA series oligoimides and TFDB series oligoimides showed crystallinity in various degrees. However, the asymmetric p-ODA enables the p-ODA series oligoimides to exhibit amorphous forms. It was found that the p-ODA-based oligoimide with a molecular weight of 750 g mol−1 showed very low melt viscosity of 1 Pa·s even at 210°C, and the melt viscosity could maintain below 1 Pa·s after isothermal aging for 2 h at any temperature in the range of 200–280°C by rheological measurements. The cured film also showed a high glass transition temperature of 355°C by dynamic mechanical analysis, very good thermal stability by thermogravimetric analysis, and good mechanical properties. It might be more suitable for RTM processes in the future.
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Affiliation(s)
- Wei Wang
- Laboratory of Polymer Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Guofei Chen
- Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Xingzhong Fang
- Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
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Wang W, Chen G, Fang X. 1,4‐Bis(2,3‐dicarboxyl‐phenoxy)benzene dianhydride‐based phenylethynyl terminated thermoset oligoimides for resin transfer molding applications. J Appl Polym Sci 2019. [DOI: 10.1002/app.47967] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wei Wang
- Laboratory of Polymer Materials and EngineeringNingbo Institute of Technology, Zhejiang University Ningbo 315100 China
| | - Guofei Chen
- Key Laboratory of Additive Manufacturing Materials of Zhejiang ProvinceNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences Ningbo 315201 China
| | - Xingzhong Fang
- Key Laboratory of Additive Manufacturing Materials of Zhejiang ProvinceNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences Ningbo 315201 China
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