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Zhang Y, Zang Z, Gao Y, Li W, Zhu T. Hydrosilylation of Arynes with Silanes and Silicon-Based Polymer. Chemistry 2024; 30:e202401440. [PMID: 38870472 DOI: 10.1002/chem.202401440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/02/2024] [Accepted: 06/11/2024] [Indexed: 06/15/2024]
Abstract
Benzyne derived from hexadehydrogenated Diels Alder (HDDA) reactions was found to be an efficient hydrosilylation acceptors. Various silanes can react smoothly with HDDA-derived benzyne to give the arylation products. Lewis acid such as boron trifluoride etherate can accelerate these hydrosilylation reactions. Polyhydromethylsiloxane (PHMS), a widely used organosilicon polymer, was also successfully modified using our method. About 5 % of Si-H bonds in the polymer were inserted by benzynes, giving a functional PHMS with much more solubility in methanol and with a blue-emitting fluorescence behavior. Mechanism research shows that the insertion of benzyne into the Si-H bond probably undergoes a synergistic pathway, which is quite different from the traditional radical-initiated hydrosilylation or transition-metal-catalyzed hydrosilylation.
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Affiliation(s)
- Ying Zhang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Chemistry, IGCME, Sun Yat-sen University, 510275, Guangzhou, Guangdong, China
| | - Zhenming Zang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Chemistry, IGCME, Sun Yat-sen University, 510275, Guangzhou, Guangdong, China
| | - Yuan Gao
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Chemistry, IGCME, Sun Yat-sen University, 510275, Guangzhou, Guangdong, China
| | - Wenchang Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Chemistry, IGCME, Sun Yat-sen University, 510275, Guangzhou, Guangdong, China
| | - Tingshun Zhu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Chemistry, IGCME, Sun Yat-sen University, 510275, Guangzhou, Guangdong, China
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Frydrych M, Sztorch B, Przekop RE, Marciniec B. New Ethynylphenylborasilsesquioxanes-Their Reactivity and Behavior during Thermal Decomposition. Int J Mol Sci 2023; 24:13960. [PMID: 37762263 PMCID: PMC10531159 DOI: 10.3390/ijms241813960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
In this paper, a new type of borasilsesquioxanes was synthesized through a condensation process, and its reactivity in catalytic hydrosilylation reactions with silanes, siloxanes, and silsesquioxanes was investigated. The obtained compounds were mostly obtained in >90% yield. They were fully characterized using spectroscopic (1H, 13C, 29Si NMR) and spectrometric (MALDI-TOF-MS) methods. The next stage of the research involved studying the thermogravimetric properties of the borasilsesquioxanes. By analyzing the different stages of decomposition using spectroscopic techniques (NMR, ATR-FTIR, Raman) and microscopic imaging, it was found that the structure of the borasilsesquioxanes changed during the pyrolysis process and polymer compounds were formed.
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Affiliation(s)
- Miłosz Frydrych
- Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland (B.M.)
- Centre for Advanced Technologies, Adam Mickiewicz University, 10 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland;
| | - Bogna Sztorch
- Centre for Advanced Technologies, Adam Mickiewicz University, 10 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland;
| | - Robert E. Przekop
- Centre for Advanced Technologies, Adam Mickiewicz University, 10 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland;
| | - Bogdan Marciniec
- Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland (B.M.)
- Centre for Advanced Technologies, Adam Mickiewicz University, 10 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland;
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Przybylska A, Szymańska A, Maciejewski H. A library of new organofunctional silanes obtained by thiol-(meth)acrylate Michael addition reaction. RSC Adv 2023; 13:14010-14017. [PMID: 37181512 PMCID: PMC10167801 DOI: 10.1039/d3ra01583a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/27/2023] [Indexed: 05/16/2023] Open
Abstract
A simple and efficient method for the synthesis of organofunctional silanes by the thiol-(meth)acrylate addition reaction is presented. At first, systematic studies were carried out to select an optimum initiator/catalyst of the addition reaction for the model reaction involving 3-mercaptopropyltrimethoxysilane (MPTMS) and hexyl acrylate. Photoinitiators (in the presence of UV light energy), thermal initiators (such as aza compound and peroxide) as well as catalysts (primary and tertiary amines, phosphines and Lewis acid) were studied. After selecting an effective catalytic system and optimizing the reaction conditions, reactions between the thiol group (i.e. 3-mercaptopropyltrimethoxysilane) and (meth)acrylates containing various functional groups were carried out. All derivatives obtained were characterized by 1H, 13C, 29Si NMR and FT-IR analysis. In reactions carried out at room temperature, in an air atmosphere and in the presence of dimethylphenylphosphine (DMPP) as a catalyst, quantitative conversions of both substrates were obtained within a few minutes. The library of organofunctional silanes was expanded by compounds (containing various functional groups, i.e. alkenyl, epoxy, amino, ether, alkyl, aralkyl, fluoroalkyl) which were obtained in the thiol-Michael addition of 3-mercaptopropyltrimethoxysilane to a group of organofunctional (meth)acrylic acid esters.
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Affiliation(s)
- Agnieszka Przybylska
- Faculty of Chemistry, Adam Mickiewicz University Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
| | - Anna Szymańska
- Poznań Science and Technology Park, Adam Mickiewicz University Foundation Rubież 46 61-612 Poznań Poland
| | - Hieronim Maciejewski
- Faculty of Chemistry, Adam Mickiewicz University Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
- Poznań Science and Technology Park, Adam Mickiewicz University Foundation Rubież 46 61-612 Poznań Poland
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Rozzi A, Pedrini A, Pinalli R, Massera C, Elmi I, Zampolli S, Dalcanale E. Tuning the conformational flexibility of quinoxaline cavitands for complexation at the gas-solid interface. Chem Commun (Camb) 2022; 58:7554-7557. [PMID: 35708006 DOI: 10.1039/d2cc02710k] [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 selectivity and efficiency of benzene and toluene uptake at the gas-solid interface by quinoxaline cavitands is strongly enhanced by partial rigidification of the receptor cavity and immobilization of the cavitand onto silica gel particles.
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Affiliation(s)
- Andrea Rozzi
- Department of Chemistry, Life Science and Environmental Sustainability and INSTM UdR Parma, University of Parma Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Alessandro Pedrini
- Department of Chemistry, Life Science and Environmental Sustainability and INSTM UdR Parma, University of Parma Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Roberta Pinalli
- Department of Chemistry, Life Science and Environmental Sustainability and INSTM UdR Parma, University of Parma Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Chiara Massera
- Department of Chemistry, Life Science and Environmental Sustainability and INSTM UdR Parma, University of Parma Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Ivan Elmi
- CNR-IMM Bologna, Via P. Gobetti 101, 40129 Bologna, Italy
| | | | - Enrico Dalcanale
- Department of Chemistry, Life Science and Environmental Sustainability and INSTM UdR Parma, University of Parma Parco Area delle Scienze 17/A, 43124 Parma, Italy.
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Platinum‐Imidazolyl Schiff Base Complexes Immobilized in Periodic Mesoporous Organosilica Frameworks as Catalysts for Hydrosilylation. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Liu X, Wang Q, Han C, Feng X, Du H. Chiral Frustrated Lewis Pairs Catalyzed Highly Enantioselective Hydrosilylations of Ketones. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900121] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaoqin Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- School of Chemical Science, University of Chinese Academy of Sciences Beijing 100049 China
| | - Qiaotian Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- School of Chemical Science, University of Chinese Academy of Sciences Beijing 100049 China
| | - Caifang Han
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- School of Chemical Science, University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiangqing Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- School of Chemical Science, University of Chinese Academy of Sciences Beijing 100049 China
| | - Haifeng Du
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- School of Chemical Science, University of Chinese Academy of Sciences Beijing 100049 China
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