1
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Wang Z, Yamazaki S, Mikata Y, Oba M, Takashima H, Morimoto T, Ogawa A. Intramolecular Diels-Alder Reactions of α-Bromostyrene-Functionalized Unsaturated Carboxamides. J Org Chem 2022; 87:11148-11164. [PMID: 35944162 DOI: 10.1021/acs.joc.2c01417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Intramolecular cycloaddition reactions of α-bromostyrene-functionalized amides of monomethyl fumarate were investigated. The reaction of the amides with Et3N in toluene at 110 °C gave 1,4-dihydronaphthalenes. The 1,4-dihydronaphthalenes may be produced via the intramolecular Diels-Alder reaction, proton transfer, and dehydrobromination by a base, along with C═C bond isomerization by proton transfer. The reaction of amide derivatives with halogen on a benzene ring and alkali metal carbonates in toluene at 110 °C gave naphthalene derivatives directly. Dehydrogenation of various 1,4-dihydronaphthalenes with cesium or rubidium carbonate in toluene at 110 °C gave naphthalene derivatives. The retardation by TEMPO, acceleration by air for some substrates, and density functional theory calculations suggest a radical mechanism caused by intervention of molecular oxygen.
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Affiliation(s)
- Zhichao Wang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho 1-1, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Shoko Yamazaki
- Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
| | - Yuji Mikata
- Laboratory for Molecular and Functional Design, Department of Engineering, Nara Women's University Nara 630-8506, Japan
| | - Miho Oba
- Department of Chemistry, Faculty of Science, Nara Women's University, Nara 630-8506, Japan
| | - Hiroshi Takashima
- Department of Chemistry, Faculty of Science, Nara Women's University, Nara 630-8506, Japan
| | - Tsumoru Morimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Takayama, Ikoma, Nara 630-0192, Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho 1-1, Nakaku, Sakai, Osaka 599-8531, Japan
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2
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Sahu MK, Jaiswal S, Pattanaik S, Gunanathan C. Base-Catalyzed Traceless Silylation and Deoxygenative Cyclization of Chalcones to Cyclopropanes. J Org Chem 2022; 87:6695-6709. [PMID: 35522975 DOI: 10.1021/acs.joc.2c00374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Development of simple synthetic methods from readily available compounds to complex products is of utmost interest in modern synthesis. Catalytic synthesis of cyclopropanes is important for diverse chemical applications. We present a method for the transformation of readily accessible α,β-unsaturated ketones (chalcones) to cyclopropanes. A simple base, KOH, catalyzed the selective reduction of the enone carbonyl functionality, dehydrogenative silylation, and deoxygenative cyclization of chalcones to provide the cyclopropane products. Chalcones with extended conjugation and 4-chromanone-based substrates also provided the corresponding cyclopropanes. One-pot synthesis of cyclopropanes directly from industrial feedstock compounds such as ketones and aldehydes is also demonstrated using catalytic KOH for both intermolecular condensation and dehydrogenative silylation-deoxygenative intramolecular cyclization cascade.
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Affiliation(s)
- Manas Kumar Sahu
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
| | - Shubham Jaiswal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
| | - Sandip Pattanaik
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
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3
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Kuciński K, Stachowiak-Dłużyńska H, Hreczycho G. Catalytic silylation of O–nucleophiles via Si–H or Si–C bond cleavage: A route to silyl ethers, silanols and siloxanes. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214456] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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4
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Ouyang S, Liu G, Peng S, Zheng J, Ye YX, Zheng J, Tong Y, Hu Y, Zhou N, Gong X, Xu J, Ouyang G. Superficially capped amino metal-organic framework for efficient solid-phase microextraction of perfluorinated alkyl substances. J Chromatogr A 2022; 1669:462959. [PMID: 35303573 DOI: 10.1016/j.chroma.2022.462959] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/27/2022] [Accepted: 03/09/2022] [Indexed: 12/11/2022]
Abstract
Perfluorinated alkyl substances (PFASs) were ubiquitously in the surface and groundwater. It is crucial and urgent to develop a rapid and ultrasensitive analysis method for the quantification of trace-level PFASs. Herein, a highly hydrophobic sorbent by capping phenylsilane groups on the surfaces of NH2-UiO-66(Zr) nanocrystals was used for efficient solid-phase microextraction (SPME) of PFASs in water samples. It was found that the superficially capped nanocrystals (NH2-UiO-66(Zr)-hp) exhibited both faster extraction kinetics and higher enrichment capacity than the non-capped nanocrystals. The extraction of eleven kinds of PFASs by NH2-UiO-66(Zr)-hp fiber reached equilibrium in 20 min. The enrichment factors of the NH2-UiO-66(Zr)-hp fiber ranged from 6.5 to 48, with a preference for long-chain PFASs over short-chain PFASs. It was proposed that superficial capping eliminated competitive moisture adsorption on the surfaces of the non-capped nanocrystals, thus facilitating the adsorption of PFASs through hydrophobic interaction. By using this new sorbent, the limits of detection of the SPME method as low as 0.035 to 0.616 ng·L-1 were achieved for the target PFASs. The recoveries of PFASs in the environmental water samples were 80.9%-120%. This study presents a new strategy for developing an efficient sorbent for PFASs by surface hydrophobic modification.
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Affiliation(s)
- Sai Ouyang
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China
| | - Guifeng Liu
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China
| | - Sheng Peng
- School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Jiating Zheng
- School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Yu-Xin Ye
- School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Juan Zheng
- School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Yuanjun Tong
- School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Yalan Hu
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China
| | - Ningbo Zhou
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China.
| | - Xinying Gong
- School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
| | - Jianqiao Xu
- School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Gangfeng Ouyang
- School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
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5
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Rzonsowska M, Mituła K, Duszczak J, Kasperkowiak M, Januszewski R, Grześkiewicz A, Kubicki M, Głowacka D, Dudziec B. Unexpected and frustrating transformations of double-decker silsesquioxanes. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01363g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This paper outlines an unexpected type of intramolecular transformation of DDSQ during hydrolytic condensation and surprising catalytic reactivity in silylative coupling.
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Affiliation(s)
- Monika Rzonsowska
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Katarzyna Mituła
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Julia Duszczak
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Małgorzata Kasperkowiak
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Rafał Januszewski
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
- Department of Chemistry and Technology of Silicon Compounds, Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Anita Grześkiewicz
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Maciej Kubicki
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Daria Głowacka
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Beata Dudziec
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
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6
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Lin Q, Lin Z, Pan M, Zheng Q, Li H, Chen X, Darcel C, Dixneuf PH, Li B. Alkenes as hydrogen trappers to control the regio-selective ruthenium(ii) catalyzed ortho C–H silylation of amides and anilides. Org Chem Front 2021. [DOI: 10.1039/d0qo01031f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A convenient and practical pathway to versatile silylated amides and anilides is described via efficient and selective ruthenium(ii) catalyzed ortho C–H silylation with different alkenes as the hydrogen acceptors.
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Affiliation(s)
- Qiao Lin
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Zirui Lin
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Mingxing Pan
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Qiaojin Zheng
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Hui Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Christophe Darcel
- Univ. Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes)
- F-35000 Rennes
- France
| | - Pierre H. Dixneuf
- Univ. Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes)
- F-35000 Rennes
- France
| | - Bin Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
- Univ. Rennes
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7
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Liu G, Liu H, Tong Y, Xu L, Ye YX, Wen C, Zhou N, Xu J, Ouyang G. Headspace solid-phase microextraction of semi-volatile ultraviolet filters based on a superhydrophobic metal-organic framework stable in high-temperature steam. Talanta 2020; 219:121175. [PMID: 32887097 DOI: 10.1016/j.talanta.2020.121175] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 01/10/2023]
Abstract
Headspace solid-phase microextraction (HS-SPME) of low volatile analytes from complex aqueous samples can be substantially facilitated by elevating the temperature of the samples. However, many SPME coatings prepared from novel sorptive materials may suffer from low stabilities in hot water steam. Herein, a superhydrophobic metal-organic framework (MOF) derived from decorating the metal-oxo nodes of the amino-functionalized UiO-66(Zr) with phenylsilane was prepared and successfully developed into a novel SPME fiber coating. The highest extraction efficiencies towards the semi-volatile ultraviolet (UV) filters were achieved when the aqueous samples were heated up to 100 °C. It was notable that the lab-made coating exhibited extraordinary stability towards hot water steam, probably because the hydrophobic groups capped on the MOF prevented water molecules from entering and deconstructing its lattice. Even after being treated with water steam under 100 °C for 21 h, the extraction performance of the coating remained unchanged, and the crystal structure of the MOF maintained. Furthermore, a negligible matrix effect was observed even in the samples containing humic acid. Under the optimal extraction and thermal desorption conditions, a method for determining UV filters in aqueous samples was established, which possessed low detection limits (0.6-2.1 ng L-1), wide linear ranges (10-50000 ng L-1), good inter-fiber reproducibility (2.3-6.0%, n = 6), and satisfying intra-fiber repeatability (1.8-5.8%, n = 3). The method was successfully applied in quantifying UV filters in environmental water samples. In addition, the lab-made NH2-UiO-66(Zr)-shp-coated fiber was also suitable for the analysis of polycyclic aromatic hydrocarbons (PAHs). This study provided an effective strategy for preparing MOF coatings that can maintain their crystalline structures and high extraction performances in high-temperature steam.
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Affiliation(s)
- Guifeng Liu
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, Hunan, PR China
| | - Huan Liu
- College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, Shanghai, China
| | - Yuanjun Tong
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Linyan Xu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China
| | - Yu-Xin Ye
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China
| | - Cheng Wen
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, Hunan, PR China
| | - Ningbo Zhou
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, Hunan, PR China.
| | - Jianqiao Xu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
| | - Gangfeng Ouyang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
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8
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Duan M, Li P, Zhao H, Wu J, Li Y, Liu W, Fu Y, Xie F, Ma J. Actinide Endohedral and Exohedral Cubic Siloxanes: An(IV)@(HSiO
1.5
)
8
and An(IV)&(RSiO
1.5
)
8
(An = U, Np, Pu; R = H, Cl, OH). Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Meigang Duan
- State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy School of Physics and Electronics Engineering Shanxi University 030006 Taiyuan China
| | - Peng Li
- State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy School of Physics and Electronics Engineering Shanxi University 030006 Taiyuan China
- Collaborative Innovation Center of Extreme Optics Shanxi University 030006 Taiyuan China
| | - Huifeng Zhao
- State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy School of Physics and Electronics Engineering Shanxi University 030006 Taiyuan China
| | - Jizhou Wu
- State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy School of Physics and Electronics Engineering Shanxi University 030006 Taiyuan China
- Collaborative Innovation Center of Extreme Optics Shanxi University 030006 Taiyuan China
| | - Yuqing Li
- State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy School of Physics and Electronics Engineering Shanxi University 030006 Taiyuan China
- Collaborative Innovation Center of Extreme Optics Shanxi University 030006 Taiyuan China
| | - Wenliang Liu
- State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy School of Physics and Electronics Engineering Shanxi University 030006 Taiyuan China
- Collaborative Innovation Center of Extreme Optics Shanxi University 030006 Taiyuan China
| | - Yongming Fu
- State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy School of Physics and Electronics Engineering Shanxi University 030006 Taiyuan China
- Collaborative Innovation Center of Extreme Optics Shanxi University 030006 Taiyuan China
| | - Feng Xie
- Institute of Nuclear and New Energy Technology Collaborative Innovation Center of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University 100084 Beijing China
| | - Jie Ma
- State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy School of Physics and Electronics Engineering Shanxi University 030006 Taiyuan China
- Collaborative Innovation Center of Extreme Optics Shanxi University 030006 Taiyuan China
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9
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Sun D, Adiyala PR, Yim S, Kim D. Pore‐Surface Engineering by Decorating Metal‐Oxo Nodes with Phenylsilane to Give Versatile Super‐Hydrophobic Metal–Organic Frameworks (MOFs). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902961] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dengrong Sun
- Center for Intelligent Microprocess of Pharmaceutical Synthesis (CIMPS)Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Nam-gu Pohang-Si Gyungsangbuk-do 37673 South Korea
| | - Praveen Reddy Adiyala
- Center for Intelligent Microprocess of Pharmaceutical Synthesis (CIMPS)Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Nam-gu Pohang-Si Gyungsangbuk-do 37673 South Korea
| | - Se‐Jun Yim
- Center for Intelligent Microprocess of Pharmaceutical Synthesis (CIMPS)Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Nam-gu Pohang-Si Gyungsangbuk-do 37673 South Korea
| | - Dong‐Pyo Kim
- Center for Intelligent Microprocess of Pharmaceutical Synthesis (CIMPS)Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Nam-gu Pohang-Si Gyungsangbuk-do 37673 South Korea
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10
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Sun D, Adiyala PR, Yim SJ, Kim DP. Pore-Surface Engineering by Decorating Metal-Oxo Nodes with Phenylsilane to Give Versatile Super-Hydrophobic Metal-Organic Frameworks (MOFs). Angew Chem Int Ed Engl 2019; 58:7405-7409. [PMID: 30957390 DOI: 10.1002/anie.201902961] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 12/30/2022]
Abstract
Hydrophobization of metal-organic frameworks (MOFs) is important to push forward their practical use and thus has attracted increasing interest. In contrast to the previous reports, which mainly focused on the modification of organic ligands in MOFs, herein, we reported a novel strategy to decorate the metal-oxo nodes of MOFs with phenylsilane to afford super-hydrophobic NH2 -UiO-66(Zr), which shows highly improved base resistance and holds great promise in versatile applications, such as organic/water separation, self-cleaning, and liquid-marble fabrication. This work demonstrates the first attempt at metal-oxo node modification for super-hydrophobic MOFs, advancing a new concept in the design of MOFs with controlled wettability for practical applications.
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Affiliation(s)
- Dengrong Sun
- Center for Intelligent Microprocess of Pharmaceutical Synthesis (CIMPS), Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Nam-gu, Pohang-Si, Gyungsangbuk-do, 37673, South Korea
| | - Praveen Reddy Adiyala
- Center for Intelligent Microprocess of Pharmaceutical Synthesis (CIMPS), Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Nam-gu, Pohang-Si, Gyungsangbuk-do, 37673, South Korea
| | - Se-Jun Yim
- Center for Intelligent Microprocess of Pharmaceutical Synthesis (CIMPS), Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Nam-gu, Pohang-Si, Gyungsangbuk-do, 37673, South Korea
| | - Dong-Pyo Kim
- Center for Intelligent Microprocess of Pharmaceutical Synthesis (CIMPS), Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Nam-gu, Pohang-Si, Gyungsangbuk-do, 37673, South Korea
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11
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Kuciński K, Hreczycho G. A Highly Effective Route to Si-O-Si Moieties through O-Silylation of Silanols and Polyhedral Oligomeric Silsesquioxane Silanols with Disilazanes. CHEMSUSCHEM 2019; 12:1043-1048. [PMID: 30536641 DOI: 10.1002/cssc.201802757] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Indexed: 06/09/2023]
Abstract
A simple and highly practical catalyst-free O-silylation of silanols with commercially available disilazanes has been developed under mild conditions. In the case of polyhedral oligomeric silsesquioxane (POSS) silanols and some other silanols, it was necessary to use catalytic amounts of inexpensive Bi(OTf)3 as additional catalyst. This efficient chlorine-free protocol involves the synthesis of a wide range of important organosilicon derivatives such as unsymmetrical disiloxanes and functionalized silsesquioxanes.
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Affiliation(s)
- Krzysztof Kuciński
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614, Poznań, Poland
| | - Grzegorz Hreczycho
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614, Poznań, Poland
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12
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Kaźmierczak J, Kuciński K, Lewandowski D, Hreczycho G. Ru-Catalyzed Dehydrogenative Silylation of POSS-Silanols with Hydrosilanes: Its Introduction to One-Pot Synthesis. Inorg Chem 2019; 58:1201-1207. [DOI: 10.1021/acs.inorgchem.8b02645] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Joanna Kaźmierczak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614 Poznań, Poland
| | - Krzysztof Kuciński
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614 Poznań, Poland
| | - Dariusz Lewandowski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614 Poznań, Poland
| | - Grzegorz Hreczycho
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614 Poznań, Poland
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