1
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Tracy J, Broderick CH, Toste FD. Development of the Squaramide Scaffold for High Potential and Multielectron Catholytes for Use in Redox Flow Batteries. J Am Chem Soc 2024; 146:11740-11755. [PMID: 38629752 PMCID: PMC11066874 DOI: 10.1021/jacs.3c14776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 05/02/2024]
Abstract
Nonaqueous organic redox flow batteries (N-ORFBs) are a promising technology for grid-scale storage of energy generated from intermittent renewable sources. Their primary benefit over traditional aqueous RFBs is the wide electrochemical stability window of organic solvents, but the design of catholyte materials, which can exploit the upper range of this window, has proven challenging. We report herein a new class of N-ORFB catholytes in the form of squaric acid quinoxaline (SQX) and squaric acid amide (SQA) materials. Mechanistic investigation of decomposition in battery-relevant conditions via NMR, HRMS, and electrochemical methods enabled a rational design approach to optimizing these scaffolds. Three lead compounds were developed: a highly stable one-electron SQX material with an oxidation potential of 0.51 V vs Fc/Fc+ that maintained 99% of peak capacity after 102 cycles (51 h) when incorporated into a 1.58 V flow battery; a high-potential one-electron SQA material with an oxidation potential of 0.81 V vs Fc/Fc+ that demonstrated negligible loss of redox active material as measured by pre- and postcycling CV peak currents when incorporated in a 1.63 V flow battery for 110 cycles over 29 h; and a proof-of-concept two-electron SQA catholyte material with oxidation potentials of 0.48 and 0.85 V vs Fc/Fc+ that demonstrated a capacity fade of just 0.56% per hour during static H-cell cycling. These findings expand the previously reported space of high-potential catholyte materials and showcase the power of mechanistically informed synthetic design for N-ORFB materials development.
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Affiliation(s)
- Jacob
S. Tracy
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Joint
Center for Energy Storage Research (JCESR), Argonne, Illinois 60429, United States
- Department
of Chemistry, University of West Florida, Pensacola, Florida 32514, United States
| | - Conor H. Broderick
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Joint
Center for Energy Storage Research (JCESR), Argonne, Illinois 60429, United States
| | - F. Dean Toste
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Joint
Center for Energy Storage Research (JCESR), Argonne, Illinois 60429, United States
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2
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Song TT, Mei YK, Liu Y, Wang XY, Guo SY, Ji DW, Wan B, Yuan W, Chen QA. Construction of Bridged Benzazepines via Photo-Induced Dearomatization. Angew Chem Int Ed Engl 2024; 63:e202314304. [PMID: 38009446 DOI: 10.1002/anie.202314304] [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: 09/24/2023] [Revised: 11/24/2023] [Accepted: 11/24/2023] [Indexed: 11/28/2023]
Abstract
Bridged benzazepine scaffolds, possessing unique structural and physicochemical activities, are widespread in various natural products and drugs. The construction of these skeletons often requires elaborate synthetic effort with low efficiency. Herein, we develop a simple and divergent approach for constructing various bridged benzazepines by a photocatalytic intermolecular dearomatization of naphthalene derivatives with readily available α-amino acids. The bridged motif is created via a cascade sequence involving photocatalytic 1,4-hydroaminoalkylation, alkene isomerization and cyclization. Interestingly, the diastereoselectivity can be regulated through different reaction modes in the cyclization step. Moreover, aminohydroxylation and its further bromination have also been demonstrated to access highly functionalized bridged benzazepines. Preliminary mechanistic studies have been performed to get insights into the mechanism. This method provides a divergent synthetic approach for construction of highly functionalized bridged benzazepines, which have been otherwise difficult to access.
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Affiliation(s)
- Ting-Ting Song
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yong-Kang Mei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Yu Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shi-Yu Guo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Ding-Wei Ji
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Boshun Wan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Weiming Yuan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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3
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Takeguchi A, Kikuchi A, Ueno K, Ishihara S, Nitta A, Nakagawa T, Ubukata T, Yokoyama Y. Ion valence-gated photochromism of an aza-crowned diarylethene. Photochem Photobiol Sci 2024; 23:133-151. [PMID: 38129342 DOI: 10.1007/s43630-023-00508-z] [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: 07/14/2023] [Accepted: 11/04/2023] [Indexed: 12/23/2023]
Abstract
A non-photochromic diarylethene 2o with an N-phenylaza-15-crown-5 was synthesized. When the nitrogen atom in the aza-crown ring was protonated, it became photochromic due to the prevention of a twisted intramolecular charge transfer (TICT). Although addition of a monovalent metal cation (Li+, Na+, K+, Rb+, Cs+, Cu+, Ag+) in acetonitrile could not stop the TICT so that it was not photochromic, the addition of a multivalent metal cation (Mg2+, Ca2+, Sr2+, Ba2+, Fe2+, Ni2+, Al3+, Sb5+) changed 2o to be photochromic due to the strong attraction of the lone pair on the nitrogen atom. In the presence of excess Cu2+, 2o was oxidized to be EPR-detectable 2o·+, which was thermally unstable as well as inert towards visible-light irradiation. However, 2o·+ was further oxidized to be fairly stable 2o2+ by the irradiation of 365-nm light in the presence of Cu2+. ESI-MS measurements strongly suggested the generation of 2o·+ by mixing 2o with Cu(ClO4)2 in acetonitrile, and the transformation of 2o·+ to 2o2+ by successive 365-nm light irradiation. Fe3+ similarly worked as the oxidant, but the two-step oxidation of 2o to 2o2+ occurred more easily.
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Affiliation(s)
- Ayaka Takeguchi
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan
| | - Azusa Kikuchi
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan
| | - Kazuhide Ueno
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan
| | - Shinji Ishihara
- Instrumental Analysis Center, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan
| | - Aki Nitta
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan
| | - Tetsuya Nakagawa
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan
| | - Takashi Ubukata
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan.
| | - Yasushi Yokoyama
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan.
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4
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Zhang Y, Yan Y, Mi J, Wang S, Wang M, Guo G. Bottom-Up Photosynthesis of an Air-Stable Radical Semiconductor Showing Photoconductivity to Full Solar Spectrum and X-Ray. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302978. [PMID: 37541668 PMCID: PMC10558663 DOI: 10.1002/advs.202302978] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/03/2023] [Indexed: 08/06/2023]
Abstract
Single-component semiconductors with photoresponse to full solar spectrum are highly desirable to simplify the device structure of commercial photodetectors and to improve solar conversion or photocatalytic efficiency but remain scarce. This work reports bottom-up photosynthesis of an air-stable radical semiconductor using BiI3 and a photochromism-active benzidine derivative as a photosensitive functional motif. This semiconductor shows photoconductivity to full solar spectrum contributed by radical and non-radical forms of the benzidine derivative. It has also the potential to detect X-rays because of strong X-ray absorption coefficient. This finding opens up a new synthetic method for radical semiconductors and may find applications on extending photoresponsive ranges of perovskites, transition metal sulfides, and other materials.
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Affiliation(s)
- Yu Zhang
- College of ChemistryFuzhou UniversityFuzhouFujian350108P. R. China
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350608P. R. China
| | - Yun‐Fan Yan
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350608P. R. China
| | - Jia‐Rong Mi
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350608P. R. China
| | - Shuai‐Hua Wang
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350608P. R. China
| | - Ming‐Sheng Wang
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350608P. R. China
| | - Guo‐Cong Guo
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350608P. R. China
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5
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Miyajima R, Ooe Y, Miura T, Ikoma T, Iwamoto H, Takizawa SY, Hasegawa E. Triarylamine-Substituted Benzimidazoliums as Electron Donor-Acceptor Dyad-Type Photocatalysts for Reductive Organic Transformations. J Am Chem Soc 2023; 145:10236-10248. [PMID: 37127911 DOI: 10.1021/jacs.3c01264] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Triarylamine-substituted benzimidazoliums (BI+-PhNAr2), new electron donor-acceptor dyad molecules, were synthesized. Their photocatalytic properties for reductive organic transformations were explored using absorption and fluorescence spectroscopy, redox potential determinations, density functional theory calculations, transient absorption spectroscopy, and reduction reactions of selected substrates. The results show that irradiation of BI+-PhNAr2 promotes photoinduced intramolecular electron transfer to form a long-lived (∼300 μs) charge shifted state (BI•-PhN•+Ar2). In the pathway for photocatalysis of reduction reactions of substrates, BI•-PhN•+Ar2 is subsequently transformed to the neutral benzimidazolyl radical (BI•-PhNAr2) by single-electron transfer from the donor 1,3-dimethyl-2-phenylbenzimidazoline (BIH-Ph) serving as a cooperative agent. Among the benzimidazoliums explored, the bromo-substituted analogue BI+-PhN(C6H4Br-p)2 in conjunction with BIH-Ph demonstrates the most consistent catalytic performance.
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Affiliation(s)
- Ryo Miyajima
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Yuuki Ooe
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Tomoaki Miura
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Tadaaki Ikoma
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Hajime Iwamoto
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Shin-Ya Takizawa
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Eietsu Hasegawa
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
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6
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Liu X, Yang D, Liu Z, Wang Y, Liu Y, Wang S, Wang P, Cong H, Chen YH, Lu L, Qi X, Yi H, Lei A. Unraveling the Structure and Reactivity Patterns of the Indole Radical Cation in Regioselective Electrochemical Oxidative Annulations. J Am Chem Soc 2023; 145:3175-3186. [PMID: 36705997 DOI: 10.1021/jacs.2c12902] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Oxidation-induced strategy for inert chemical bond activation through highly active radical cation intermediate has exhibited unique reactivity. Understanding the structure and reactivity patterns of radical cation intermediates is crucial in the mechanistic study and will be beneficial for developing new reactions. In this work, the structure and properties of indole radical cations have been revealed using time-resolved transient absorption spectroscopy, in situ electrochemical UV-vis, and in situ electrochemical electron paramagnetic resonance (EPR) technique. Density functional theory (DFT) calculations were used to explain and predict the regioselectivity of several electrochemical oxidative indole annulations. Based on the understanding of the inherent properties of several indole radical cations, two different regioselective annulations of indoles have been successfully developed under electrochemical oxidation conditions. Varieties of furo[2,3-b]indolines and furo[3,2-b]indolines were synthesized in good yields with high regioselectivities. Our mechanistic insights into indole radical cations will promote the further development of oxidation-induced indole functionalizations.
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Affiliation(s)
- Xing Liu
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Dali Yang
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Zhao Liu
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Yunkun Wang
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Yichang Liu
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Shengchun Wang
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Pengjie Wang
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Hengjiang Cong
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Yi-Hung Chen
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Lijun Lu
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Xiaotian Qi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Hong Yi
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China
| | - Aiwen Lei
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, Hubei, P. R. China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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7
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Wen T, Liang B, Liang J, Wang D, Shi J, Xu S, Zhu W, Chen X, Zhu Z. Copper-Promoted N-Alkylation and Bromination of Arylamines/Indazoles Using Alkyl Bromides as Reagents for Difunctionalization. J Org Chem 2022; 87:12214-12224. [PMID: 36053202 DOI: 10.1021/acs.joc.2c01356] [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
Practical copper-promoted N-alkylation and bromination of arylamines/indazoles with alkyl bromides are described; the N-alkylation-C-4-bromination and N-dialkylation-C-4-bromination of arylamines, and N-alkylation-C-3-bromination of indazoles, with alkyl bromides have been analyzed. The full use of alkyl bromides as alkylating and brominating building blocks without atom wastage, indicating excellent atom and step economy, has been highlighted. Eco-friendly oxygen and water are the reaction oxidant and byproduct, respectively.
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Affiliation(s)
- Tingting Wen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Baihui Liang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Jiacheng Liang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Dongyi Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Jianyi Shi
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Shengting Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Weidong Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Zhongzhi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
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8
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Abstract
The natural product himastatin has an unusual homodimeric structure that presents a substantial synthetic challenge. We report the concise total synthesis of himastatin from readily accessible precursors, incorporating a final-stage dimerization strategy that was inspired by a detailed consideration of the compound's biogenesis. Combining this approach with a modular synthesis enabled expedient access to more than a dozen designed derivatives of himastatin, including synthetic probes that provide insight into its antibiotic activity.
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Affiliation(s)
- Kyan A. D’Angelo
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Carly K. Schissel
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Bradley L. Pentelute
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States,Corresponding authors. ,
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States,Corresponding authors. ,
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9
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Paisuwan W, Ajavakom V, Sukwattanasinitt M, Tobisu M, Ajavakom A. Ratiometric and colorimetric detection of Cu2+ via the oxidation of benzodihydroquinoline derivatives and related synthetic methodology. SENSING AND BIO-SENSING RESEARCH 2022. [DOI: 10.1016/j.sbsr.2021.100470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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10
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Guo XY, Mao H, Bao C, Wan D, Jin M. Fused Carbazole–Coumarin–Ketone Dyes: High Performance and Photobleachable Photoinitiators in Free Radical Photopolymerization for Deep Photocuring under Visible LED Light Irradiation. Polym Chem 2022. [DOI: 10.1039/d2py00466f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, three dyes based on fused carbazole–coumarin–ketone structures were designed and synthesized. These dyes were named CCK–Me, CCK–Ph, and CCK–Tol in accordance with their different substituents. Their excellent...
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11
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Hickey EE, Kennedy DP, Gwizdala C, Basa PN, Müller P, MacDonald J, Burdette SC. Probing the Ni 2+ -selective Response of Fluorescent Probe NiSensor-1 with the NiCast Photocaged Complex † ‡. Photochem Photobiol 2021; 98:362-370. [PMID: 34816449 DOI: 10.1111/php.13567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/19/2021] [Indexed: 12/29/2022]
Abstract
CTEA (N,N-bis[2-(carboxylmethyl)thioethyl]amine) is a mixed donor ligand that has been incorporated into multiple fluorescent sensors such as NiSensor-1 that was reported to be selective for Ni2+ . Other metal ions such as Zn2+ do not produce an emission response in aqueous solution. To investigate the coordination chemistry and selectivity of this receptor, we prepared NiCast, a photocage containing the CTEA receptor. Cast photocages undergo a photoreaction that decreases electron density on a metal-bound aniline nitrogen atom, which shifts the binding equilibrium toward unbound metal ion. The unique selectivity of CTEA was examined by measuring the binding affinity of NiCast and the CTEA receptor for Ni2+ , Zn2+ , Cd2+ and Cu2+ under different conditions. In aqueous solution, Ni2+ binds more strongly to the aniline nitrogen atom than Cd2+ ; however, in CH3 CN, the change in affinity virtually disappears. The crystal structure of [Cu(CTEA)], which exhibits a Jahn-Teller-distorted square pyramidal structure, was also analyzed to gain more insight into the underlying coordination chemistry. These studies suggest that the fluorescence selectivity of NiSensor-1 in aqueous solution is due to a stronger interaction between the aniline nitrogen atom and Ni2+ compared to other divalent metal ions except Cu2+ .
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Affiliation(s)
- Erin E Hickey
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, MA
| | | | - Celina Gwizdala
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, MA
| | - Prem N Basa
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, MA
| | - Peter Müller
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA
| | - John MacDonald
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, MA
| | - Shawn C Burdette
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, MA
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12
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Feng X, Wei J, Li X, Zhang W, Zhao X, Lu C, Guo X, Fang J. Radical Form of PbI 2: A New Defect Passivator for Efficient Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:46627-46633. [PMID: 34558886 DOI: 10.1021/acsami.1c12764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
PbI2 is a commonly used passivator for defect passivation in perovskite solar cells (PSCs). However, the poor conductivity nature of PbI2 may limit the further improvement of device performance. Here, we report a radical form of PbI2 with high conductivity to passivate defects for efficient PSCs through a combination of N,N,N',N'-tetramethylbenzidine (TMB). When PbI2 is combined with TMB, 4 orders of magnitude higher conductivity will be achieved owing to the formation of a TMB-PbI2 radical. As a result, the device performance is impressively increased from 20.48 to 22.63%. In addition, the device stability is also greatly improved and 95% of the initial efficiency is retained after aging at 85 °C for 600 h.
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Affiliation(s)
- XiuXiu Feng
- School of Physics and Electronic Science, Ministry of Education Nanophotonics & Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China
| | - Jiyao Wei
- School of Physics and Electronic Science, Ministry of Education Nanophotonics & Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China
| | - Xiaodong Li
- School of Physics and Electronic Science, Ministry of Education Nanophotonics & Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China
| | - Wenxiao Zhang
- School of Physics and Electronic Science, Ministry of Education Nanophotonics & Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China
| | - Xiaoyan Zhao
- School of Physics and Electronic Science, Ministry of Education Nanophotonics & Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China
| | - Chunyan Lu
- School of Physics and Electronic Science, Ministry of Education Nanophotonics & Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China
| | - Xuemin Guo
- School of Physics and Electronic Science, Ministry of Education Nanophotonics & Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China
| | - Junfeng Fang
- School of Physics and Electronic Science, Ministry of Education Nanophotonics & Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China
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13
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Milanesi CL, Protti S, Chiodi D, Profumo A, Merli D. Electrochemical characterization and voltammetric determination of aryl piperazine emerging as designer drugs. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115480] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Matsumoto K, Shindo M, Yoshida M. Development of Aerobic Oxidative Transformations of Aromatic C-H Bonds Using a Heterogeneous Metal Catalyst. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.755] [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)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University
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15
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Electrochemical synthesis of symmetrical benzidines through dehydrogenative cross-coupling reaction. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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16
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Fang Y, Sun Q, Chen X, Qiu Y, Chen C, Wang L, Zhao Y, Su Y, Li T, Zhang L, Wang X. Rational design and syntheses of aniline-based diradical dications: isolable congeners of quinodimethane diradicals. Org Chem Front 2021. [DOI: 10.1039/d0qo01265c] [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
Two-electron oxidation of five aniline-based compounds 4,4′′-p/m-terphenyldiamines afforded the first isolable aniline-based diradical dications 12+–52+.
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17
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Matsumoto K, Toubaru Y, Tachikawa S, Miki A, Sakai K, Koroki S, Hirokane T, Shindo M, Yoshida M. Catalytic and Aerobic Oxidative Biaryl Coupling of Anilines Using a Recyclable Heterogeneous Catalyst for Synthesis of Benzidines and Bicarbazoles. J Org Chem 2020; 85:15154-15166. [PMID: 33226808 DOI: 10.1021/acs.joc.0c02020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this study, a heterogeneous rhodium-catalyzed oxidative homocoupling reaction of anilines utilizing molecular oxygen as the sole oxidant is reported. Employing a commercially available and recyclable Rh/C catalyst enabled the oxidative dimerization of various anilines, including N,N-disubstituted and N-monosubstituted anilines, as well as diarylamines, triarylamines, and carbazoles. Additionally, the catalytic protocol was extended to the ortho-ortho coupling of anilines, affording 2,2'-diaminobiphenyls with high regioselectivity. Notably, the developed approach provides rapid access to diversely functionalized benzidines and diaminobiphenyls in an operationally simple, practical, and environmentally friendly manner.
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Affiliation(s)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Yasunori Toubaru
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Shohei Tachikawa
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Ayaka Miki
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Kentaro Sakai
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Syota Koroki
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Tsukasa Hirokane
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Masahiro Yoshida
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
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18
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19
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Anex C, Touzé E, Curet L, Gohier F, Cougnon C. Base‐Assisted Electrografting of Aromatic Amines. ChemElectroChem 2019. [DOI: 10.1002/celc.201900979] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Corentin Anex
- MOLTECH-AnjouUMR 6200CNRSUNIV Angers 2 bd Lavoisier 49045 ANGERS Cedex France
| | - Ewen Touzé
- MOLTECH-AnjouUMR 6200CNRSUNIV Angers 2 bd Lavoisier 49045 ANGERS Cedex France
| | - Léonard Curet
- MOLTECH-AnjouUMR 6200CNRSUNIV Angers 2 bd Lavoisier 49045 ANGERS Cedex France
| | - Frédéric Gohier
- MOLTECH-AnjouUMR 6200CNRSUNIV Angers 2 bd Lavoisier 49045 ANGERS Cedex France
| | - Charles Cougnon
- MOLTECH-AnjouUMR 6200CNRSUNIV Angers 2 bd Lavoisier 49045 ANGERS Cedex France
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20
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Osypenko A, Dhers S, Lehn JM. Pattern Generation and Information Transfer through a Liquid/Liquid Interface in 3D Constitutional Dynamic Networks of Imine Ligands in Response to Metal Cation Effectors. J Am Chem Soc 2019; 141:12724-12737. [DOI: 10.1021/jacs.9b05438] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Artem Osypenko
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Sébastien Dhers
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Jean-Marie Lehn
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, 67000 Strasbourg, France
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21
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Hiroto S. Synthesis of π‐Functional Molecules through Oxidation of Aromatic Amines. Chem Asian J 2019; 14:2514-2523. [DOI: 10.1002/asia.201900213] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/20/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Satoru Hiroto
- Graduate School of Human and Environmental StudiesKyoto University Yoshidanihonmatsu-cho, Sakyo-ku Kyoto 606-8501 Japan
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22
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Song D, Jefferson WA, Cheng H, Jiang X, Qiang Z, He H, Liu H, Qu J. Acidic permanganate oxidation of sulfamethoxazole by stepwise electron-proton transfer. CHEMOSPHERE 2019; 222:71-82. [PMID: 30690403 DOI: 10.1016/j.chemosphere.2019.01.113] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/13/2018] [Accepted: 01/21/2019] [Indexed: 06/09/2023]
Abstract
Permanganate is a versatile chemical oxidant, and has undergone a dramatic evolution toward deep insight into its reaction mechanism. However, the hydrogen abstraction of the NH bond by permanganate remains unclear. We studied the permanganate oxidation of the emerging micropollutant sulfamethoxazole in acidic aqueous solution. The reaction followed autocatalytic kinetics and demonstrated first-order with respect to each reactant. The presence of HMnO4 accelerated the reaction rate, which was four orders of magnitude higher than that of MnO4-. Based on the identified products, the rate-limiting step was determined to be simple NH bond oxidation by metal-oxo species permanganate. The mechanism was then studied computationally by density functional theory (DFT) using ammonia as the simplest model. Results showed that the NH bond oxidation by MnO4- (32.86 kcal/mol) was a concerted mechanism similar to that of CH bond oxidation, whereas HMnO4 oxidation of the NH bond (10.44 kcal/mol) was a stepwise electron-proton transfer. This reminds us that coordination of Brønsted acid could not only produce the stronger electrophile but also change the reaction mode by avoiding the bond cleavage in electron transfer process.
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Affiliation(s)
- Dean Song
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Agriculture Ministry Laboratory of Quality & Safety Risk Assessment for Tobacco, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - William A Jefferson
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Hanyang Cheng
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xiaohua Jiang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Zhimin Qiang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Hong He
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Huijuan Liu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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23
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Mudithanapelli C, Dhorma LP, Kim MH. PIFA-Promoted, Solvent-Controlled Selective Functionalization of C(sp2)–H or C(sp3)–H: Nitration via C–N Bond Cleavage of CH3NO2, Cyanation, or Oxygenation in Water. Org Lett 2019; 21:3098-3102. [DOI: 10.1021/acs.orglett.9b00751] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Chandrashekar Mudithanapelli
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Lama Prema Dhorma
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Mi-hyun Kim
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea
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24
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Wang G, Xu G, Zhang N, Yao M, Wang M, Guo G. From Lead Iodide to a Radical Form Lead‐Iodide Superlattice: High Conductance Gain and Broader Band for Photoconductive Response. Angew Chem Int Ed Engl 2019; 58:2692-2695. [PMID: 30614186 DOI: 10.1002/anie.201812554] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Guan‐E Wang
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Gang Xu
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Ning‐Ning Zhang
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Ming‐Shui Yao
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Ming‐Sheng Wang
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Guo‐Cong Guo
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
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25
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Adams DJ, Johns B, Vedernikov AN. Methyl transfer reactivity of pentachloromethylplatinate(IV) anion with a series of N-nucleophiles. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.10.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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26
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Wang G, Xu G, Zhang N, Yao M, Wang M, Guo G. From Lead Iodide to a Radical Form Lead‐Iodide Superlattice: High Conductance Gain and Broader Band for Photoconductive Response. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812554] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guan‐E Wang
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Gang Xu
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Ning‐Ning Zhang
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Ming‐Shui Yao
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Ming‐Sheng Wang
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
| | - Guo‐Cong Guo
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences Yangqiao west road 155#, Fuzhou Fujian 350002 China
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27
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Mallick S, Maddala S, Kollimalayan K, Venkatakrishnan P. Oxidative Coupling of Carbazoles: A Substituent-Governed Regioselectivity Profile. J Org Chem 2018; 84:73-93. [DOI: 10.1021/acs.joc.8b02322] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sudesh Mallick
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sudhakar Maddala
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Kalidass Kollimalayan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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28
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Norrehed S, Karlsson C, Light ME, Thapper A, Huang P, Gogoll A. Formation of persistent organic diradicals from N, N'-diphenyl-3,7-diazacyclooctanes. MONATSHEFTE FUR CHEMIE 2018; 150:77-84. [PMID: 30679878 PMCID: PMC6320754 DOI: 10.1007/s00706-018-2298-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/18/2018] [Indexed: 11/27/2022]
Abstract
ABSTRACT N,N'-Diphenyl-3,7-diazacyclooctane and structurally related N,N'-diphenylbispidine derivatives react with silver(I) ions in a high-yielding C-C coupling reaction to produce dication-diradical species, with the silver ions serving a double function both as template and as an oxidant. The resulting bis(benzidino)phane derivatives are persistent organic radicals, stable for several months in solution as well as in the solid state, at room temperature and above, as well as being exposed to the atmosphere. The molecular structure features a double-decker cyclophane motif, stabilized by intramolecular π-dimerization of two delocalized benzidinium radical segments. Intermolecular π-dimers are formed in the solid state. GRAPHICAL ABSTRACT
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Affiliation(s)
- Sara Norrehed
- Department of Chemistry - BMC, Uppsala University, Uppsala, Sweden
| | | | - Mark E. Light
- Department of Chemistry, University of Southampton, Highfield, Southampton, UK
| | - Anders Thapper
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Ping Huang
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Adolf Gogoll
- Department of Chemistry - BMC, Uppsala University, Uppsala, Sweden
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29
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Li S, Yuan N, Fang Y, Chen C, Wang L, Feng R, Zhao Y, Cui H, Wang X. Studies on the Bridge Dependence of Bis(triarylamine) Diradical Dications: Long-Range π-Conjugation and π–π Coupling Systems. J Org Chem 2018; 83:3651-3656. [DOI: 10.1021/acs.joc.8b00003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shuyu Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Ningning Yuan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Yong Fang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Chao Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Lei Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Rui Feng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Haiyan Cui
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
- Institution Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Xinping Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
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30
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Zhang S, Wang W, Liu S, Sui Y, Zhang Z, Tan G, Sun Q, Wang X. Putting aniline radical cations in a bottle. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9096-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Maddala S, Mallick S, Venkatakrishnan P. Metal-Free Oxidative C–C Coupling of Arylamines Using a Quinone-Based Organic Oxidant. J Org Chem 2017; 82:8958-8972. [DOI: 10.1021/acs.joc.7b01377] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sudhakar Maddala
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sudesh Mallick
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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32
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Long lived charge separated states in vinylbenzonitrile substituted derivatives of pyrene and anthracene. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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33
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Little MS, Yeates SG, Alwattar AA, Heard KWJ, Raftery J, Edwards AC, Parry AVS, Quayle P. Insights into the Scholl Coupling Reaction: A Key Transformation of Relevance to the Synthesis of Graphenes and Related Systems. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601580] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mark S. Little
- School of Chemistry; University of Manchester; Oxford Road M13 9PL Manchester UK
- School of Chemistry; Imperial College; SW7 2AY London UK
| | - Stephen G. Yeates
- School of Chemistry; University of Manchester; Oxford Road M13 9PL Manchester UK
| | - Aula A. Alwattar
- School of Chemistry; University of Manchester; Oxford Road M13 9PL Manchester UK
| | - Kane W. J. Heard
- School of Chemistry; University of Manchester; Oxford Road M13 9PL Manchester UK
| | - James Raftery
- School of Chemistry; University of Manchester; Oxford Road M13 9PL Manchester UK
| | - Alyn C. Edwards
- School of Chemistry; University of Manchester; Oxford Road M13 9PL Manchester UK
| | - Adam. V. S. Parry
- School of Chemistry; University of Manchester; Oxford Road M13 9PL Manchester UK
| | - Peter Quayle
- School of Chemistry; University of Manchester; Oxford Road M13 9PL Manchester UK
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34
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Sreenath K, Yuan Z, Macias‐Contreras M, Ramachandran V, Clark RJ, Zhu L. Dual Role of Acetate in Copper(II) Acetate Catalyzed Dehydrogenation of Chelating Aromatic Secondary Amines: A Kinetic Case Study of Copper‐Catalyzed Oxidation Reactions. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600540] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Kesavapillai Sreenath
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
| | - Zhao Yuan
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
| | - Miguel Macias‐Contreras
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
| | - Vasanth Ramachandran
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
| | - Ronald J. Clark
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
| | - Lei Zhu
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
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35
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Berkessa SC, Clarke ZJ, Fotie J, Bohle DS, Grimm CC. Silver(I)-mediated regioselective oxidative cross-coupling of phenol and aniline derivatives resulting in 2′-aminobiphenyl-2-ols. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.111] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Zhang J, Wang Y, Luo N, Chen Z, Wu K, Yin G. Redox inactive metal ion triggered N-dealkylation by an iron catalyst with dioxygen activation: a lesson from lipoxygenases. Dalton Trans 2016; 44:9847-59. [PMID: 25939391 DOI: 10.1039/c5dt00804b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Utilization of dioxygen as the terminal oxidant at ambient temperature is always a challenge in redox chemistry, because it is hard to oxidize a stable redox metal ion like iron(III) to its high oxidation state to initialize the catalytic cycle. Inspired by the dioxygenation and co-oxidase activity of lipoxygenases, herein, we introduce an alternative protocol to activate the sluggish iron(III) species with non-redox metal ions, which can promote its oxidizing power to facilitate substrate oxidation with dioxygen, thus initializing the catalytic cycle. In oxidations of N,N-dimethylaniline and its analogues, adding Zn(OTf)2 to the [Fe(TPA)Cl2]Cl catalyst can trigger the amine oxidation with dioxygen, whereas [Fe(TPA)Cl2]Cl alone is very sluggish. In stoichiometric oxidations, it has also been confirmed that the presence of Zn(OTf)2 can apparently improve the electron transfer capability of the [Fe(TPA)Cl2]Cl complex. Experiments using different types of substrates as trapping reagents disclosed that the iron(IV) species does not occur in the catalytic cycle, suggesting that oxidation of amines is initialized by electron transfer rather than hydrogen abstraction. Combined experiments from UV-Vis, high resolution mass spectrometry, electrochemistry, EPR and oxidation kinetics support that the improved electron transfer ability of iron(III) species originates from its interaction with added Lewis acids like Zn(2+) through a plausible chloride or OTf(-) bridge, which has promoted the redox potential of iron(III) species. The amine oxidation mechanism was also discussed based on the available data, which resembles the co-oxidase activity of lipoxygenases in oxidative dealkylation of xenobiotic metabolisms where an external electron donor is not essential for dioxygen activation.
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Affiliation(s)
- Jisheng Zhang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, Luoyu Road 1037, Wuhan 430074, PR China.
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37
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Santaclara JG, Nasalevich MA, Castellanos S, Evers WH, Spoor FCM, Rock K, Siebbeles LDA, Kapteijn F, Grozema F, Houtepen A, Gascon J, Hunger J, van der Veen MA. Organic Linker Defines the Excited-State Decay of Photocatalytic MIL-125(Ti)-Type Materials. CHEMSUSCHEM 2016; 9:388-395. [PMID: 26871265 DOI: 10.1002/cssc.201501353] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/27/2015] [Indexed: 06/05/2023]
Abstract
Recently, MIL-125(Ti) and NH2 -MIL-125(Ti), two titanium-based metal-organic frameworks, have attracted significant research attention in the field of photocatalysis for solar fuel generation. This work reveals that the differences between these structures are not only based on their light absorption range but also on the decay profile and topography of their excited states. In contrast to MIL-125(Ti), NH2 -MIL-125(Ti) shows markedly longer lifetimes of the charge-separated state, which improves photoconversion by the suppression of competing decay mechanisms. We used spectroelectrochemistry and ultrafast spectroscopy to demonstrate that upon photoexcitation in NH2 -MIL-125(Ti) the electron is located in the Ti-oxo clusters and the hole resides on the aminoterephthalate unit, specifically on the amino group. The results highlight the role of the amino group in NH2 -MIL-125(Ti), the electron donation of which extends the lifetime of the photoexcited state substantially.
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Affiliation(s)
- Jara G Santaclara
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Maxim A Nasalevich
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Sonia Castellanos
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Wiel H Evers
- Optoelectronic Materials, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ, Delft, The Netherlands
| | - Frank C M Spoor
- Optoelectronic Materials, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Kamila Rock
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Laurens D A Siebbeles
- Optoelectronic Materials, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Freek Kapteijn
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Ferdinand Grozema
- Optoelectronic Materials, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Arjan Houtepen
- Optoelectronic Materials, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Jorge Gascon
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
| | - Johannes Hunger
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Monique A van der Veen
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands.
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38
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Vardhaman AK, Lee YM, Jung J, Ohkubo K, Nam W, Fukuzumi S. Enhanced Electron Transfer Reactivity of a Nonheme Iron(IV)-Imido Complex as Compared to the Iron(IV)-Oxo Analogue. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600287] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anil Kumar Vardhaman
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Yong-Min Lee
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Jieun Jung
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Kei Ohkubo
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
- Faculty of Science and Engineering, ALCA, SENTAN; Japan Science and Technology Agency (JST); Meijo University; Nagoya Aichi 468-0073 Japan
- Department of Material and Life Science, Graduate School of Engineering, ALCA, SENTAN; Japan Science and Technology Agency (JST); Osaka University; Suita Osaka 565-0871 Japan
| | - Wonwoo Nam
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
- Faculty of Science and Engineering, ALCA, SENTAN; Japan Science and Technology Agency (JST); Meijo University; Nagoya Aichi 468-0073 Japan
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39
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Vardhaman AK, Lee YM, Jung J, Ohkubo K, Nam W, Fukuzumi S. Enhanced Electron Transfer Reactivity of a Nonheme Iron(IV)-Imido Complex as Compared to the Iron(IV)-Oxo Analogue. Angew Chem Int Ed Engl 2016; 55:3709-13. [PMID: 26890463 DOI: 10.1002/anie.201600287] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 01/26/2016] [Indexed: 01/09/2023]
Abstract
Reactions of N,N-dimethylaniline (DMA) with nonheme iron(IV)-oxo and iron(IV)-tosylimido complexes occur via different mechanisms, such as an N-demethylation of DMA by a nonheme iron(IV)-oxo complex or an electron transfer dimerization of DMA by a nonheme iron(IV)-tosylimido complex. The change in the reaction mechanism results from the greatly enhanced electron transfer reactivity of the iron(IV)-tosylimido complex, such as the much more positive one-electron reduction potential and the smaller reorganization energy during electron transfer, as compared to the electron transfer properties of the corresponding iron(IV)-oxo complex.
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Affiliation(s)
- Anil Kumar Vardhaman
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea
| | - Jieun Jung
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea
| | - Kei Ohkubo
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea.,Faculty of Science and Engineering, ALCA, SENTAN, Japan Science and Technology Agency (JST), Meijo University, Nagoya, Aichi, 468-0073, Japan.,Department of Material and Life Science, Graduate School of Engineering, ALCA, SENTAN, Japan Science and Technology Agency (JST), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea.
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea.,Faculty of Science and Engineering, ALCA, SENTAN, Japan Science and Technology Agency (JST), Meijo University, Nagoya, Aichi, 468-0073, Japan
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40
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Chen WC, Gandeepan P, Tsai CH, Luo CZ, Rajamalli P, Cheng CH. A concise synthesis of quinolinium, and biquinolinium salts and biquinolines from benzylic azides and alkenes promoted by copper(ii) species. RSC Adv 2016. [DOI: 10.1039/c6ra11840b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
A copper promoted multiple aza-[4 + 2] cycloaddition reactions between benzylic azides and alkenes to form four different products including quinolinium and biquinolinium cations, biquinolines and quinolines are described.
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Affiliation(s)
- Wei-Chen Chen
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | | | - Chia-Hung Tsai
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Ching-Zong Luo
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | | | - Chien-Hong Cheng
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
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41
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Extension studies on iron(III)-promoted free radical oxidation of anilines: self-coupling and self-bridged assembling reactions. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Yu P, Zheng SC, Yang NY, Tan B, Liu XY. Phosphine-Catalyzed Remote β-CH Functionalization of Amines Triggered by Trifluoromethylation of Alkenes: One-Pot Synthesis of Bistrifluoromethylated Enamides and Oxazoles. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201412310] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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43
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Yu P, Zheng SC, Yang NY, Tan B, Liu XY. Phosphine-Catalyzed Remote β-CH Functionalization of Amines Triggered by Trifluoromethylation of Alkenes: One-Pot Synthesis of Bistrifluoromethylated Enamides and Oxazoles. Angew Chem Int Ed Engl 2015; 54:4041-5. [DOI: 10.1002/anie.201412310] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Indexed: 11/07/2022]
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44
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Wagner A, Ofial AR. Potassium Thiocyanate as Source of Cyanide for the Oxidative α-Cyanation of Tertiary Amines. J Org Chem 2015; 80:2848-54. [DOI: 10.1021/jo502846c] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Alexander Wagner
- Department
Chemie der Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13 (Haus F), 81377 München, Germany
| | - Armin R. Ofial
- Department
Chemie der Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13 (Haus F), 81377 München, Germany
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45
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Cao F, Kim J, Bard AJ. Detection of the Short-Lived Cation Radical Intermediate in the Electrochemical Oxidation of N,N-Dimethylaniline by Scanning Electrochemical Microscopy. J Am Chem Soc 2014; 136:18163-9. [DOI: 10.1021/ja511602v] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Fahe Cao
- Center for Electrochemistry,
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Jiyeon Kim
- Center for Electrochemistry,
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Allen J. Bard
- Center for Electrochemistry,
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, United States
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46
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Chiranjeevi B, Vinayak B, Parsharamulu T, PhaniBabu VS, Jagadeesh B, Sridhar B, Chandrasekharam M. Iron(III)-Catalyzed C-H Functionalization:ortho-Benzoyloxylation ofN,N-Dialkylanilines and Its Application to 1,4-Benzoxazepines. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402751] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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47
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Wang F, Shen Y, Hu H, Wang X, Wu H, Liu Y. Copper(II)-catalyzed indolizines formation followed by dehydrogenative functionalization cascade to synthesize 1-bromoindolizines. J Org Chem 2014; 79:9556-66. [PMID: 25233481 DOI: 10.1021/jo501626b] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A one-pot, three-component cascade reaction between pyridine, α-acylmethylbromide, and maleic anhydride leading to direct access of 1-bromoindolizines in high yields has been developed. This protocol is accomplished via a reaction sequence of 1,3-dipolar cycloaddition of the pyridinium ylide with maleic anhydride, oxidative decarboxylation of the primary cycloadduct, and dehydrogenative bromination of the resulting 1-unsubstituted indolizine. Copper chloride was used as a catalyst and oxygen as the terminal oxidant. This reaction represents the first example of transition-metal-catalyzed direct dehydrogenative bromination of indolizine at the C-1 position. Moreover, the obtained 1-bromoindolizines can be transformed to other 1-substituted indolizines such as 1-arylindolizines via a simple reaction process.
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Affiliation(s)
- Fuyao Wang
- Jiangsu Key Laboratory of Green Synthetic for Functional Materials and School of Chemistry and Chemical Engineering, Jiangsu Normal University , Xuzhou 221116, Jiangsu, P. R. China
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48
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Bondarchuk SV, Minaev BF. Theoretical Study of Relationships between Structural, Optical, Energetic, and Magnetic Properties and Reactivity Parameters of Benzidine and Its Oxidized Forms. J Phys Chem A 2014; 118:8872-82. [DOI: 10.1021/jp507479p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sergey V. Bondarchuk
- Department
of Organic Chemistry, Bogdan Khmelnitsky Cherkasy National University, blvd. Shevchenko 81, 18031 Cherkasy, Ukraine
| | - Boris F. Minaev
- Department
of Organic Chemistry, Bogdan Khmelnitsky Cherkasy National University, blvd. Shevchenko 81, 18031 Cherkasy, Ukraine
- Department
of Physics, Tomsk State University, pr. Lenina 36, 634050 Tomsk, Russian Federation
- Department
of Theoretical Chemistry and Biochemistry, Royal Institute of Technology, AlbaNova, S-106 91 Stockholm, Sweden
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49
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50
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Bondarchuk SV, Minaev BF. Electronic descriptors for analytical use of the benzidine-based compounds and the mechanism of oxidative coupling of anilines. J PHYS ORG CHEM 2014. [DOI: 10.1002/poc.3311] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sergey V. Bondarchuk
- Department of Organic Chemistry; Bogdan Khmelnitsky Cherkasy National University; Blvd. Shevchenko 81 18031 Cherkasy Ukraine
| | - Boris F. Minaev
- Department of Organic Chemistry; Bogdan Khmelnitsky Cherkasy National University; Blvd. Shevchenko 81 18031 Cherkasy Ukraine
- Department of Physics; Tomsk State University; Pr. Lenina, 36 634050 Tomsk Russia
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