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Wang R, Zhang L, Li X, Zhu L, Xiang Z, Xu J, Xue D, Deng Z, Su X, Zou M. High-Performance Aluminum Fuels Induced by Monolayer Self-Assembly of Nano-Sized Energetic Fluoride Vesicles on the Surface. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401564. [PMID: 38704734 PMCID: PMC11234408 DOI: 10.1002/advs.202401564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/17/2024] [Indexed: 05/07/2024]
Abstract
Surface modification is frequently used to solve the problems of low combustion properties and agglomeration for aluminum-based fuels. However, due to the intrinsic incompatibility between the aluminum powder and the organic modifiers, the surface coating is usually uneven and disordered, which significantly deteriorates the uniformity and performances of the Al-based fuels. Herein, a new approach of monolayer nano-vesicular self-assembly is proposed to prepare high-performance Al fuels. Triblock copolymer G-F-G is produced by glycidyl azide polymer (GAP) and 2,2'-(2,2,3,3,4,5,5-Octafluorohexane-1,6-diyl) bis (oxirane) (fluoride) ring-open addition reaction. By utilizing G-F-G vesicular self-assembly in a special solvent, the nano-sized vesicles are firmly adhered to the surface of Al powder through the long-range attraction between the fluorine segments and Al. Meanwhile, the electrostatic repulsion between vesicles ensures an extremely thin coating thickness (≈15 nm), maintaining the monolayer coating structure. Nice ignition, combustion, anti-agglomeration, and water-proof properties of Al@G-F-G(DMF) are achieved, which are superior among the existing Al-based fuels. The derived Al-based fuel has excellent comprehensive properties, which can not only inspire the development of new-generation energetic materials but also provide facile but exquisite strategies for exquisite surface nanostructure construction via ordered self-assembly for many other applications.
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Affiliation(s)
- Ruibin Wang
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Lichen Zhang
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Xiaodong Li
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Lixiang Zhu
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Zilong Xiang
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Jin Xu
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Dichang Xue
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Zitong Deng
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Xing Su
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
| | - Meishuai Zou
- School of Materials Science and EngineeringBeijing Institute of TechnologyNo. 5 South Zhongguancun Street, HaidianBeijing100081China
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2
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Xun SS, Wang H, Yu CB, Lu SM, Zhou YG. Diarylborinic Acid-Catalyzed Ring Opening of cis-4-Hydroxymethyl-1,2-Cyclopentene Oxides: Synthesis of 1,2,4-Trisubstituted Cyclopentanes. Org Lett 2023; 25:7540-7544. [PMID: 37812068 DOI: 10.1021/acs.orglett.3c02886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
A diarylborinic acid-catalyzed ring opening of cis-4-hydroxymethyl-1,2-cyclopentene oxides was developed with N-nucleophiles including anilines, benzotriazole, and alkylamines, as well as S-nucleophiles, affording 1,2,4-trisubstituted cyclopentane compounds containing a quaternary carbon center. The mechanism study indicated that the "half-cage" structure formed by the epoxide substrate and the catalyst prevents the nucleophiles from attacking the inner side of the "half-cage", resulting in the desired ring-opening product.
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Affiliation(s)
- Shan-Shan Xun
- School of Chemistry and Material Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
| | - Han Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People's Republic of China
| | - Chang-Bin Yu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People's Republic of China
| | - Sheng-Mei Lu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People's Republic of China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People's Republic of China
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Motiwala HF, Armaly AM, Cacioppo JG, Coombs TC, Koehn KRK, Norwood VM, Aubé J. HFIP in Organic Synthesis. Chem Rev 2022; 122:12544-12747. [PMID: 35848353 DOI: 10.1021/acs.chemrev.1c00749] [Citation(s) in RCA: 108] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
1,1,1,3,3,3-Hexafluoroisopropanol (HFIP) is a polar, strongly hydrogen bond-donating solvent that has found numerous uses in organic synthesis due to its ability to stabilize ionic species, transfer protons, and engage in a range of other intermolecular interactions. The use of this solvent has exponentially increased in the past decade and has become a solvent of choice in some areas, such as C-H functionalization chemistry. In this review, following a brief history of HFIP in organic synthesis and an overview of its physical properties, literature examples of organic reactions using HFIP as a solvent or an additive are presented, emphasizing the effect of solvent of each reaction.
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Affiliation(s)
- Hashim F Motiwala
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Ahlam M Armaly
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jackson G Cacioppo
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Thomas C Coombs
- Department of Chemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28403 United States
| | - Kimberly R K Koehn
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Verrill M Norwood
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jeffrey Aubé
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
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Desai SP, Taylor MS. Diarylborinic Acid-Catalyzed Regioselective Ring Openings of Epoxy Alcohols with Pyrazoles, Imidazoles, Triazoles, and Other Nitrogen Heterocycles. Org Lett 2021; 23:7049-7054. [PMID: 34459605 DOI: 10.1021/acs.orglett.1c02412] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A method for regioselective ring openings of 3,4- and 2,3-epoxy alcohols with ambident nitrogen heterocycles is described. Using a diarylborinic acid catalyst, a single regioisomer is favored in couplings of nucleophile and electrophile partners that display low regioselectivity under conventional conditions. The method provides access to aromatic heterocycles bearing stereochemically defined, functionalized alkyl substituents, a product class similar in structure to medicinally relevant compounds such as the acyclic nucleoside analogues.
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Affiliation(s)
- Shrey P Desai
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mark S Taylor
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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Kuriyama Y, Sasano Y, Hoshino Y, Uesugi SI, Yamaichi A, Iwabuchi Y. Highly Regioselective 5-endo-tet Cyclization of 3,4-Epoxy Amines into 3-Hydroxypyrrolidines Catalyzed by La(OTf) 3. Chemistry 2021; 27:1961-1965. [PMID: 33191563 DOI: 10.1002/chem.202004455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/27/2020] [Indexed: 11/08/2022]
Abstract
Highly regioselective intramolecular aminolysis of 3,4-epoxy amines has been achieved. Key features of this reaction are (1) chemoselective activation of epoxides in the presence of unprotected aliphatic amines in the same molecules by a La(OTf)3 catalyst and (2) excellent regioselectivity for anti-Baldwin 5-endo-tet cyclization. This reaction affords 3-hydroxy-2-alkylpyrrolidines stereospecifically in high yields. DFT calculations revealed that the regioselectivity might be attributed to distortion energies of epoxy amine substrates. The use of this reaction was demonstrated by the first enantioselective synthesis of an antispasmodic agent prifinium bromide.
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Affiliation(s)
- Yuse Kuriyama
- Department of Organic Chemistry, Graduate School of, Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yusuke Sasano
- Department of Organic Chemistry, Graduate School of, Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yoshihiko Hoshino
- Department of Organic Chemistry, Graduate School of, Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Shun-Ichiro Uesugi
- Department of Organic Chemistry, Graduate School of, Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Aoto Yamaichi
- Department of Organic Chemistry, Graduate School of, Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yoshiharu Iwabuchi
- Department of Organic Chemistry, Graduate School of, Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
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Verma C, Olasunkanmi LO, Akpan ED, Quraishi M, Dagdag O, El Gouri M, Sherif ESM, Ebenso EE. Epoxy resins as anticorrosive polymeric materials: A review. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104741] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Zhang S, Lebœuf D, Moran J. Brønsted Acid and H‐Bond Activation in Boronic Acid Catalysis. Chemistry 2020; 26:9883-9888. [DOI: 10.1002/chem.202001902] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Indexed: 01/15/2023]
Affiliation(s)
- Shaofei Zhang
- University of Strasbourg CNRS ISIS UMR 7006 67000 Strasbourg France
| | - David Lebœuf
- University of Strasbourg CNRS ISIS UMR 7006 67000 Strasbourg France
| | - Joseph Moran
- University of Strasbourg CNRS ISIS UMR 7006 67000 Strasbourg France
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Adonin NY, Bardin VV. Polyfluorinated arylboranes as catalysts in organic synthesis. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Wang G, Taylor MS. Borinic Acid‐Catalyzed Regioselective Ring‐Opening of 3,4‐ and 2,3‐Epoxy Alcohols with Halides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901268] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Grace Wang
- Department of ChemistryUniversity of Toronto 80 St. George St. Toronto ON M5 S 3H6 Canada
| | - Mark S. Taylor
- Department of ChemistryUniversity of Toronto 80 St. George St. Toronto ON M5 S 3H6 Canada
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Liu J, Wang C. Zinc-Catalyzed Hydroxyl-Directed Regioselective Ring Opening of Aziridines in SN2 Reaction Pathway. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04823] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jiawei Liu
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People’s Republic of China
| | - Chuan Wang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People’s Republic of China
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