1
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Chemical and biology of Sulfur (VI) Fluoride Exchange (SuFEx) Click Chemistry for Drug Discovery. Bioorg Chem 2022; 130:106227. [DOI: 10.1016/j.bioorg.2022.106227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/05/2022] [Accepted: 10/22/2022] [Indexed: 11/19/2022]
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2
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P CAS, Raveendran AV, Sivakrishna N, Nandi RP. Triarylborane-triphenylamine based luminophore for the mitochondria targeted live cell imaging and colorimetric detection of aqueous fluoride. Dalton Trans 2022; 51:15339-15353. [PMID: 36135598 DOI: 10.1039/d2dt01887j] [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
Bioimaging of subcellular organelles such as mitochondria is crucial for detecting physiological abnormalities induced by fluctuations in the levels of various analytes. Herein, we report the design and synthesis of two novel water-soluble cationic Lewis acid triarylborane-triarylamine conjugates 1 and 2. The optical characteristics of 1 and 2 and their precursor compounds BTPA-NMe2 and BTPA-2NMe2 were evaluated, which show similar absorption and fluorescence spectra, with 1 and 2 exhibiting higher quantum yields of 0.73 and 0.64, respectively, than those of the precursors BTPA-NMe2 and BTPA-2NMe2, indicating the partial disruption of the ICT process and the activation of alternative emission bands in 1 and 2. The live cell imaging ability of compound 2 was examined in HeLa cells using a confocal microscope. Moreover, mitochondrial internalisation using compound 2 was effective and it was found to have high photostability under UV light conditions. Furthermore, compound 2 demonstrated an evident colorimetric response with a colour change to dark yellow in aqueous environments, indicating that it could be used for anion sensing. The spectral changes were observed in UV-visible and fluorescence titration experiments, which were strongly supported by DFT calculations. In short, compound 2 synthesized by us can be exclusively utilized for the selective localization of mitochondria with less cytotoxicity and shows excellent colorimetric response to aqueous inorganic fluoride at levels as low as 0.1 ppm with high selectivity.
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Affiliation(s)
- Chinna Ayya Swamy P
- Main group Organometallics Materials, Supramolecular Chemistry and Catalysis lab, Department of Chemistry, National Institute of Technology, Calicut, India-673601.
| | - Archana V Raveendran
- Main group Organometallics Materials, Supramolecular Chemistry and Catalysis lab, Department of Chemistry, National Institute of Technology, Calicut, India-673601.
| | - Narra Sivakrishna
- Humanities & Sciences, Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India-500090
| | - Rajendra Prasad Nandi
- Inorganic and Physical Chemistry Department, Indian Institute of Science, Bangalore-560 012, India
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3
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Aliyu Idris M, Song KH, Lee S. Synthesis of (Hetero)Aroyl Fluorides via a Mild Amides C−N Bond Cleavage. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Muhammad Aliyu Idris
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
| | - Kwang Ho Song
- Department of Chemical & Biological Engineering Korea University Seoul 02841 Republic of Korea
| | - Sunwoo Lee
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
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4
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Li R, Barel N, Subramaniyan V, Cohen O, Tibika F, Tulchinsky Y. Sulfonium cations as versatile strongly π-acidic ligands. Chem Sci 2022; 13:4770-4778. [PMID: 35655889 PMCID: PMC9067576 DOI: 10.1039/d2sc00588c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 03/14/2022] [Indexed: 01/31/2023] Open
Abstract
More than a century old, sulfonium cations are still intriguing species in the landscape of organic chemistry. On one hand they have found broad applications in organic synthesis and materials science, but on the other hand, while isoelectronic to the ubiquitous tertiary phosphine ligands, their own coordination chemistry has been neglected for the last three decades. Here we report the synthesis and full characterization of the first Rh(i) and Pt(ii) complexes of sulfonium. Moreover, for the first time, coordination of an aromatic sulfonium has been established. A thorough computational analysis of the exceptionally short S-Rh bonds obtained attests to the strongly π-accepting nature of sulfonium cations and places them among the best π-acceptor ligands available today. Our calculations also show that embedding within a pincer framework enhances their π-acidity even further. Therefore, in addition to the stability and modularity that these frameworks offer, our pincer complexes might open the way for sulfonium cations to become powerful tools in π-acid catalysis.
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Affiliation(s)
- Ruiping Li
- Institute of Chemistry, The Hebrew University of Jerusalem Jerusalem 9190401 Israel
| | - Nitsan Barel
- Institute of Chemistry, The Hebrew University of Jerusalem Jerusalem 9190401 Israel
| | | | - Orit Cohen
- Institute of Chemistry, The Hebrew University of Jerusalem Jerusalem 9190401 Israel
| | - Françoise Tibika
- Institute of Chemistry, The Hebrew University of Jerusalem Jerusalem 9190401 Israel
| | - Yuri Tulchinsky
- Institute of Chemistry, The Hebrew University of Jerusalem Jerusalem 9190401 Israel
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5
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Li X, Yongcai W, Lijuan S, Zhang Y. Catalytic Halogen‐Exchange Fluorination of 4‐Chlorobenzaldehyde to 4‐Fluorobenzaldehyde, a Greener Process. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiukai Li
- Institute of Bioengineering and Bioimaging 31 Biopolis Way The Nanos, Singapore 138669 Singapore
| | - Wu Yongcai
- Wanlong Chemicals 212332 Zhenjiang P.R.China
| | - Shi Lijuan
- Wanlong Chemicals 212332 Zhenjiang P.R.China
| | - Yugen Zhang
- Institute of Bioengineering and Bioimaging 31 Biopolis Way The Nanos, Singapore 138669 Singapore
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6
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Andrews R, De Backere J, Stephan DW. Synthesis and reactivity of donor stabilized thionylium (SO2+) dications. Chem Commun (Camb) 2022; 58:11434-11437. [DOI: 10.1039/d2cc04129d] [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
Robust mono-, di-, and tridentate base-stabilized thionylium (SO2+) dications were synthesized from the treatment of SOCl¬¬2 with Me3SiO3SCF3 and pyridine-based ligands. Computational and experimental data are consistent with Lewis acidities...
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7
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Kirschner S, Peters M, Yuan K, Uzelac M, Ingleson MJ. Developing organoboranes as phase transfer catalysts for nucleophilic fluorination using CsF. Chem Sci 2022; 13:2661-2668. [PMID: 35340859 PMCID: PMC8890113 DOI: 10.1039/d2sc00303a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/09/2022] [Indexed: 12/05/2022] Open
Abstract
Despite the general high fluorophilicity of boron, organoboranes such as BEt3 and 3,5-(CF3)2C6H3–BPin are shown herein for the first time, to our knowledge, to be effective (solid to solution) phase-transfer catalysts for the fluorination of certain organohalides with CsF. Significant (up to 30% e.e.) chiral induction during nucleophilic fluorination to form β-fluoroamines using oxazaborolidine (pre)catalysts and CsF also can be achieved. Screening different boranes revealed a correlation between calculated fluoride affinity of the borane and nucleophilic fluorination reactivity, with sufficient fluoride affinity required for boranes to react with CsF and form Cs[fluoroborate] salts, but too high a fluoride affinity leading to fluoroborates that are poor at transferring fluoride to an electrophile. Fluoride affinity is only one component controlling reactivity in this context; effective fluorination also is dependent on the ligation of Cs+ which effects both the phase transfer of CsF and the magnitude of the [Cs⋯F-BR3] interaction and thus the B–F bond strength. Effective ligation of Cs+ (e.g. by [2.2.2]-cryptand) facilitates phase transfer of CsF by the borane but also weakens the Cs⋯F–B interaction which in turn strengthens the B–F bond – thus disfavouring fluoride transfer to an electrophile. Combined, these findings indicate that optimal borane mediated fluorination occurs using robust (to the fluorination conditions) boranes with fluoride affinity of ca. 105 kJ mol−1 (relative to Me3Si+) under conditions where a signficant Cs⋯F–B interaction persists. Simple boranes with the optimal fluoride ion affinity are effective as catalysts for phase transfer nucleophilic fluorination with CsF.![]()
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Affiliation(s)
- Sven Kirschner
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH9 3FJ UK
| | - Matthew Peters
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH9 3FJ UK
| | - Kang Yuan
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH9 3FJ UK
| | - Marina Uzelac
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH9 3FJ UK
| | - Michael J Ingleson
- EaStCHEM School of Chemistry, The University of Edinburgh David Brewster Road Edinburgh EH9 3FJ UK
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8
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9
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Port VC, Zeoly LA, Coelho F, Cormanich RA. Through space JFH spin-spin coupling constant transmission pathways in 2-(trifluoromethyl)thiophenol: formation of unusual stabilizing bifurcated CFHS and CFSH interactions. Phys Chem Chem Phys 2021; 23:9080-9088. [PMID: 33646206 DOI: 10.1039/d0cp05887d] [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
Given its importance and the possibility of organic F to participate in hydrogen bonds (H-bonds), the understanding of its behavior as a H-bond acceptor with different donors is crucial. The interest in organofluorine compounds and the works related to the study of the participation of this atom in non-covalent interactions is constantly growing. Following recent studies in this subject, we evaluated the existence of two bifurcated intramolecular interactions, a bifurcated CFHS H-bond in the cis conformer of 2-trifluoromethylthiophenol and an unusual, bifurcated CFSH interaction in the trans conformer. The JFH spin-spin coupling constant (SSCC) was evaluated for 2-trifluoromethylthiophenol both experimentally by 1H and 19F NMR and theoretically using the natural bond orbitals (NBO), the quantum theory of atoms in molecules (QTAIM) and the non-covalent interactions (NCI) framework. Although both interactions are crucial for the stabilization of the conformer geometries, the observed positive JFH spin-spin coupling constant (SSCC) is mainly resultant from the trans conformer, which has a large calculated positive SSCC, and is transmitted through steric interactions involving the F lone pairs and the σSH bonding orbital.
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Affiliation(s)
- Vinícius C Port
- University of Campinas, Chemistry Institute, Monteiro Lobato Street, Campinas, São Paulo 13083-862, Brazil.
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10
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Liu S, Huang Y, Xu XH, Qing FL. Fluorosulfonylation of arenediazonium tetrafluoroborates with Na2S2O5 and N-fluorobenzenesulfonimide. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109653] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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11
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Park G, Gabbaï FP. Redox-controlled chalcogen and pnictogen bonding: the case of a sulfonium/stibonium dication as a preanionophore for chloride anion transport. Chem Sci 2020; 11:10107-10112. [PMID: 34094272 PMCID: PMC8162396 DOI: 10.1039/d0sc04417b] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 08/28/2020] [Indexed: 12/25/2022] Open
Abstract
Our interest in the chemistry of tunable chalcogen and pnictogen bond donors as Lewis acidic platforms for the complexation and transport of anions has led us to investigate examples of such compounds that can be activated by redox events. Here, we describe the synthesis of [o-MePhS(C6H4)SbPh3]2+ ([3]2+) and [o-MePhS(C6H4)Sb(p-Tol)3]2+ ([4]2+), two dicationic stibonium/sulfonium bifunctional Lewis acids which were obtained by methylation of the phenylthioether derivatives [o-PhS(C6H4)SbPh3]+ ([1]+) and [o-PhS(C6H4)Sb(p-Tol)3]+ ([2]+), respectively. An evaluation of the chloride anion transport properties of these derivatives using chloride-loaded POPC unilamellar vesicles shows that the activity of the monocations [1]+ and [2]+ greatly exceeds that of the dications [3]2+ and [4]2+, a phenomenon that we assign to the higher lipophilicity of the monocationic compounds. Harnessing this large transport activity differential, we show that [4]2+ can be used as a prechloridophore that is readily activated by reduction of the sulfonium moiety. Indeed, [4]2+ reacts with GSH to afford [2]+ as an active transporter. This activation, which has been monitored in aqueous solution, can also be carried out in situ, in the presence of the chloride-loaded POPC unilamellar vesicles.
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Affiliation(s)
- Gyeongjin Park
- Department of Chemistry, Texas A&M University College Station Texas 77843-3255 USA
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University College Station Texas 77843-3255 USA
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12
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Zhou B, Gabbaï FP. Redox-controlled chalcogen-bonding at tellurium: impact on Lewis acidity and chloride anion transport properties. Chem Sci 2020; 11:7495-7500. [PMID: 34123032 PMCID: PMC8159482 DOI: 10.1039/d0sc02872j] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Our interests in the chemistry of atypical main group Lewis acids have led us to devise strategies that augment the affinity of chalcogen-bond donors for anionic guests. In this study, we describe the oxidative methylation of diaryltellurides as one such strategy along with its application to the synthesis of [Mes(C6F5)TeMe]+ and [(C6F5)2TeMe]+ starting from Mes(C6F5)Te and (C6F5)2Te, respectively. These new telluronium cations have been evaluated for their ability to complex and transport chloride anions across phospholipid bilayers. These studies show that, when compared to their neutral Te(ii) precursors, these Te(iv) cations display both higher Lewis acidity and transport activity. The positive attributes of these telluronium cations, which originate from a lowering of the tellurium-centered σ* orbitals and a deepening of the associated σ-holes, demonstrate that the redox state of the main group element provides a convenient handle over its chalcogen-bonding properties. The oxidative alkylation of diorganotellurides enhances the chalcogen-bond donor properties of the tellurium center, an effect manifested in the enhanced chloride anion affinity and transport properties of the resulting telluronium cations.![]()
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Affiliation(s)
- Benyu Zhou
- Department of Chemistry, Texas A&M University College Station Texas 77843-3255 USA
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University College Station Texas 77843-3255 USA
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13
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Wu J, Sun S, Novak BM. Simple and efficient anionic polymerization of
N
‐phenylmaleimide with fluorides as an initiator. J Appl Polym Sci 2019. [DOI: 10.1002/app.48909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jingbo Wu
- Department of Chemistry and Biochemistry and the Alan G. MacDiarmid NanoTech Institute The University of Texas at Dallas Richardson Texas 75080
| | - Shasha Sun
- School of Environmental and Chemical Engineering Jiangsu University of Science and Technology Zhenjiang 212003 People's Republic of China
| | - Bruce M. Novak
- Department of Chemistry and Biochemistry and the Alan G. MacDiarmid NanoTech Institute The University of Texas at Dallas Richardson Texas 75080
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14
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Lovett GH, Chen S, Xue XS, Houk KN, MacMillan DWC. Open-Shell Fluorination of Alkyl Bromides: Unexpected Selectivity in a Silyl Radical-Mediated Chain Process. J Am Chem Soc 2019; 141:20031-20036. [DOI: 10.1021/jacs.9b11434] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Gabrielle H. Lovett
- Merck Center for Catalysis, Princeton University, Princeton, New Jersey 08544, United States
| | - Shuming Chen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Xiao-Song Xue
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - David W. C. MacMillan
- Merck Center for Catalysis, Princeton University, Princeton, New Jersey 08544, United States
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15
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Zhao H, Kim Y, Park G, Gabbai FP. Controlling the fluoridophilicity of sulfonium boranes via chelation, Coulombic and hydrophobic effects. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Capilato JN, Bume DD, Lee WH, Hoffenberg LES, Jokhai RT, Lectka T. Fluorofunctionalization of C═C Bonds with Selectfluor: Synthesis of β-Fluoropiperazines through a Substrate-Guided Reactivity Switch. J Org Chem 2018; 83:14234-14244. [PMID: 30418026 DOI: 10.1021/acs.joc.8b02429] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The halofunctionalization of alkene substrates remains an essential tool for synthetic chemists. Herein, we report regioselective ammoniofluorination of unactivated alkenes through photochemical means. A one-pot transformation of the ammonium fluoride products into pharmaceutically relevant β-fluoropiperazines is highlighted. Furthermore, a substrate-guided reactivity switch is observed: certain alkenes are shown to react with the same fluorinating reagent to instead give the less-substituted fluoride. We hope that the ammoniofluorination reaction will be of utility in the area of medicinal chemistry, where nitrogen and fluorine are among the most important heteroatoms.
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Affiliation(s)
- Joseph N Capilato
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Desta Doro Bume
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Wei Hao Lee
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Louis E S Hoffenberg
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Rayyan Trebonias Jokhai
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Thomas Lectka
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
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17
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Chen H, Liu Z, Lv Y, Tan X, Shen H, Yu HZ, Li C. Selective Radical Fluorination of Tertiary Alkyl Halides at Room Temperature. Angew Chem Int Ed Engl 2017; 56:15411-15415. [DOI: 10.1002/anie.201708197] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/27/2017] [Indexed: 11/10/2022]
Affiliation(s)
- He Chen
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Zhonglin Liu
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Ying Lv
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials; Anhui University; Hefei Anhui 230601 P. R. China
| | - Xinqiang Tan
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Haigen Shen
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Hai-Zhu Yu
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials; Anhui University; Hefei Anhui 230601 P. R. China
| | - Chaozhong Li
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
- School of Materials and Chemical Engineering; Ningbo University of Technology; 201 Fenghua Road Ningbo 315211 P. R. China
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19
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Kordts N, Künzler S, Rathjen S, Sieling T, Großekappenberg H, Schmidtmann M, Müller T. Silyl Chalconium Ions: Synthesis, Structure and Application in Hydrodefluorination Reactions. Chemistry 2017; 23:10068-10079. [DOI: 10.1002/chem.201700995] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Natalie Kordts
- Institute of Chemistry; Carl von Ossietzky University Oldenburg; Carl von Ossietzky Str. 9-11 26211 Oldenburg Germany
| | - Sandra Künzler
- Institute of Chemistry; Carl von Ossietzky University Oldenburg; Carl von Ossietzky Str. 9-11 26211 Oldenburg Germany
| | - Saskia Rathjen
- Institute of Chemistry; Carl von Ossietzky University Oldenburg; Carl von Ossietzky Str. 9-11 26211 Oldenburg Germany
| | - Thorben Sieling
- Institute of Chemistry; Carl von Ossietzky University Oldenburg; Carl von Ossietzky Str. 9-11 26211 Oldenburg Germany
| | - Henning Großekappenberg
- Institute of Chemistry; Carl von Ossietzky University Oldenburg; Carl von Ossietzky Str. 9-11 26211 Oldenburg Germany
| | - Marc Schmidtmann
- Institute of Chemistry; Carl von Ossietzky University Oldenburg; Carl von Ossietzky Str. 9-11 26211 Oldenburg Germany
| | - Thomas Müller
- Institute of Chemistry; Carl von Ossietzky University Oldenburg; Carl von Ossietzky Str. 9-11 26211 Oldenburg Germany
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20
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Xu Y, Wang Y, Zhao S, Guan R, Cao D, Wu Q, Yu X, Sun Y. A novel fluorescence chemodosimeter for fluoride anions in aqueous solution based on siloxane-aurone moiety. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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21
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Wang L, Jiang X, Tang P. Silver-mediated fluorination of alkyl iodides with TMSCF3 as the fluorinating agent. Org Chem Front 2017. [DOI: 10.1039/c7qo00450h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The first example of a silver-mediated fluorination of alkyl iodides with the Ruppert–Prakash reagent (TMSCF3) as the fluorinating agent is reported.
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Affiliation(s)
- Liyan Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
| | - Xiaohuan Jiang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
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22
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Perrio C, Schmitt S, Pla D, Gabbaï FP, Chansaenpak K, Mestre-Voegtle B, Gras E. [18F]-Fluoride capture and release: azeotropic drying free nucleophilic aromatic radiofluorination assisted by a phosphonium borane. Chem Commun (Camb) 2017; 53:340-343. [DOI: 10.1039/c6cc05168e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[18F]-Fluoride ready for SNAr was prepared according to a simple process including trapping of aqueous [18F]-fluoride on a cartridge pre-loaded with the phosphonium borane [(Ph2MeP)C6H4(BMes2)]+, then releasing by elution of TBACN in dry acetonitrile.
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Affiliation(s)
| | | | - Daniel Pla
- LCC
- CNRS
- UPR8241
- UFTMP
- 31077 Toulouse Cedex 4
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23
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Wendji AS, Lutter M, Stratmann LM, Jurkschat K. Syntheses, Structures, and Complexation Studies of Tris(organostannyl)methane Derivatives. ChemistryOpen 2016; 5:554-565. [PMID: 28032025 PMCID: PMC5167309 DOI: 10.1002/open.201600092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Indexed: 11/25/2022] Open
Abstract
The syntheses of tris(organostannyl)methanes HC(SnX n Ph(3-n))3 (1, n=0; 2, n=1, X=I; 3, n=1, X =F; 4, n=1, X=Cl; 5, n=1, X=OAc; 6, n=2, X=I; 7, n=2, X=Cl) and the organostannate complexes Et4N[HC(SnIPh2)3⋅F] (8), Ph4P[HC(SnClPh2)3⋅Cl] (9), and [Ph4P]2[HC(SnCl2Ph)3⋅2 Cl] (10) are reported. The compounds were characterized by 1H, 13C, 19F, and 119Sn NMR spectroscopy, IR spectroscopy, electrospray mass spectrometry, and (with the exception of 3) single-crystal X-ray diffraction analysis. From the reaction between 2 and AgClO4 resulted the unprecedented hexanuclear organotin oxocluster [HC{Sn(ClO4)2Ph2}2Sn(OH)2Ph]2 (11), the molecular structure of which was elucidated by using X-ray crystallography.
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Affiliation(s)
- Anicet Siakam Wendji
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und Chemische BiologieTechnische Universität Dortmund44221DortmundGermany
| | - Michael Lutter
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und Chemische BiologieTechnische Universität Dortmund44221DortmundGermany
| | - Lukas M. Stratmann
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und Chemische BiologieTechnische Universität Dortmund44221DortmundGermany
| | - Klaus Jurkschat
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und Chemische BiologieTechnische Universität Dortmund44221DortmundGermany
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24
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Alashkar N, Dietz C, Baba Haj S, Hiller W, Jurkschat K. Unsymmetrical Bicentric Organotin Lewis Acids {Me2N(CH2)3}Ph(X)Sn(CH2)nSnPh2X (X = F, I; n = 1, 3): Syntheses and Structures. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00500] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nour Alashkar
- Lehrstuhl für Anorganische
Chemie II, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Christina Dietz
- Lehrstuhl für Anorganische
Chemie II, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Samer Baba Haj
- Lehrstuhl für Anorganische
Chemie II, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Wolf Hiller
- Lehrstuhl für Anorganische
Chemie II, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Klaus Jurkschat
- Lehrstuhl für Anorganische
Chemie II, Technische Universität Dortmund, 44221 Dortmund, Germany
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25
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Li Y, Mellerup SK, Sauriol F, Schatte G, Wang S. Unusual Fragmentation and Transformation of an N-Heterocyclic Carbene by a Stable Phosphonium-Borane peri-Functionalized Naphthalene. Chemistry 2016; 22:2473-80. [PMID: 26762201 DOI: 10.1002/chem.201504156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Indexed: 01/09/2023]
Abstract
A 1-phosphonium-8-borane-decorated naphthalene molecule 2 has been found to react with N,N'-dimethylimidazol-2-ylidene (IMe), a popular member of the N-heterocyclic carbene (NHC) family, which converts it into two vinyl-amine fragments one of which is trapped between the phosphonium and borane unit by the formation of a C-C and a B-N bond. The same reactivity was not observed for larger NHC molecules. Control experiments and mechanistic studies have established the involvement of an ylide-borane molecule and an imidazolium salt in addition to IMe carbene in this new transformation of an NHC.
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Affiliation(s)
- Yufei Li
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Soren K Mellerup
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Francoise Sauriol
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Gabriele Schatte
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Suning Wang
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada. , , .,Beijing Key Laboratory of Photoelectronic/Electrophotonic, Conversion Materials, School of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, P.R. China. , ,
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26
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Kulkarni KG, Miokovic B, Sauder M, Murphy GK. Denitrogenative hydrofluorination of aromatic aldehyde hydrazones using (difluoroiodo)toluene. Org Biomol Chem 2016; 14:9907-9911. [DOI: 10.1039/c6ob02074g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(Difluoroiodo)toluene acts as both the oxidant and the fluoride source in this one-pot oxidation/denitrogenative hydrofluorination reaction.
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Affiliation(s)
| | - Boris Miokovic
- Department of Chemistry
- University of Waterloo
- Waterloo
- Canada
| | - Matthew Sauder
- Department of Chemistry
- University of Waterloo
- Waterloo
- Canada
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27
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Synthesis and fluorine-mediated interactions in methanol-encapsulated solid state self-assembly of an isatin-thiazoline hybrid. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.06.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Farrell JM, Stephan DW. Synthesis of a diboryl-N-heterocycle and its conversion to a bidentate cationic Lewis acid. Chem Commun (Camb) 2015; 51:14322-5. [PMID: 26273801 DOI: 10.1039/c5cc06248a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Sequential reaction of 2-lithio-1-methylimidazole with 9-borabicyclo[3.3.1]nonane (9-BBN) dimer and 9-Cl-9-BBN yields diboryl-N-heterocycle C4H5N2(H)(BC8H14)2 (1). Reaction of 1 with I2 results in the net substitution of chelated hydride for a singly boron-bound iodide to produce C4H5N2(I)(BC8H14)2 (2). Conversely, reaction of 1 with [Ph3C][B(C6F5)4] results in the formation of the bidentate cationic Lewis acid [(C4H5N2)(BC8H14)2][B(C6F5)4] (3). Compound 3 catalyzes the hydrogenation of N-benzylidene-tert-butylamine at room-temperature.
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Affiliation(s)
- Jeffrey M Farrell
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada.
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29
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Champagne PA, Desroches J, Hamel JD, Vandamme M, Paquin JF. Monofluorination of Organic Compounds: 10 Years of Innovation. Chem Rev 2015; 115:9073-174. [PMID: 25854146 DOI: 10.1021/cr500706a] [Citation(s) in RCA: 677] [Impact Index Per Article: 75.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pier Alexandre Champagne
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Justine Desroches
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-Denys Hamel
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Mathilde Vandamme
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-François Paquin
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
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30
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Stewart MN, Hockley BG, Scott PJH. Green approaches to late-stage fluorination: radiosyntheses of 18F-labelled radiopharmaceuticals in ethanol and water. Chem Commun (Camb) 2015; 51:14805-8. [DOI: 10.1039/c5cc05919d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Green strategies for late-stage fluorination with 18F, in which ethanol and water are the only solvents used throughout the entire radiolabeling process, have been developed and applied to the radiosyntheses of a range of radiopharmaceuticals commonly employed in clinical PET imaging.
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Affiliation(s)
- Megan N. Stewart
- Department of Medicinal Chemistry
- College of Pharmacy
- The University of Michigan
- Ann Arbor
- USA
| | - Brian G. Hockley
- Division of Nuclear Medicine
- Department of Radiology
- The University of Michigan Medical School
- Ann Arbor
- USA
| | - Peter J. H. Scott
- Department of Medicinal Chemistry
- College of Pharmacy
- The University of Michigan
- Ann Arbor
- USA
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31
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Lin Q, Yang QP, Sun B, Lou JC, Wei TB, Zhang YM. A highly selective and sensitive fluorescence “turn-on” fluoride ion sensor. RSC Adv 2015. [DOI: 10.1039/c4ra09624j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A highly selective and sensitive fluorescence “turn-on” and colorimetric dual-channel fluoride ion sensor.
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Affiliation(s)
- Qi Lin
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Qing-Ping Yang
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Bin Sun
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Jin-Chao Lou
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Tai-Bao Wei
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - You-Ming Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
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32
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Xu QW, Wang C, Sun ZB, Zhao CH. A highly selective ratiometric bifunctional fluorescence probe for Hg2+and F−ions. Org Biomol Chem 2015; 13:3032-9. [DOI: 10.1039/c4ob02593h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A dithioacetal-containing triarylborane behaves as a promising ratiometric bifunctional fluorescence probe to detect Hg2+and F−simultaneously.
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Affiliation(s)
- Qing-Wen Xu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- Jinan 250100
| | - Chen Wang
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- Jinan 250100
| | - Zuo-Bang Sun
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- Jinan 250100
| | - Cui-Hua Zhao
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- Jinan 250100
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33
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Huang HL, Huang YC, Lee WY, Yeh CN, Lin KJ, Yu CS. 18F-glutathione conjugate as a PET tracer for imaging tumors that overexpress L-PGDS enzyme. PLoS One 2014; 9:e104118. [PMID: 25111383 PMCID: PMC4128654 DOI: 10.1371/journal.pone.0104118] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 07/06/2014] [Indexed: 12/17/2022] Open
Abstract
Lipocalin-type prostaglandin D synthase (L-PGDS) has been correlated with the progression of neurological disorders. The present study aimed at evaluating the imaging potency of a glutathione conjugate of fluorine-18-labeled fluorobutyl ethacrynic amide ([18F]FBuEA-GS) for brain tumors. Preparation of [18F]FBuEA-GS has been modified from the -4-tosylate derivative via radiofluorination in 5% radiochemical yield. The mixture of nonradioactive FBuEA-GS derived from a parallel preparation has be resolved to two isomers in a ratio of 9∶1 using analytic chiral reversed phase high performance liquid chromatography (RP-HPLC). The two fluorine-18-labeled isomers purified through nonchiral semipreparative RP-HPLC as a mixture were studied by assessing the binding affinity toward L-PGDS through a gel filtration HPLC, by analyzing radiotracer accumulation in C6 glioma cells, and by evaluating the imaging of radiotracer in a C6 glioma rat with positron emission tomography. The inhibition percentage of the production of PGD2 from PGH2 at the presence of 200 µM of FBuEA-GS and 4-Dibenzo[a,d]cyclohepten-5-ylidene-1-[4-(2H-tetrazol-5-yl)butyl]piperidine (AT-56) were 74.1±4.8% and 97.6±16.0%, respectively. [18F]FBuEA-GS bound L-PGDS (16.3–21.7%) but not the isoform, microsomal prostaglandin E synthase 1. No binding to GST-alpha and GST-pi was observed. The binding strength between [18F]FBuEA-GS and L-PGDS has been evaluated using analytic gel filtration HPLC at the presence of various concentrations of the cold competitor FBuEA-GS. The contrasted images indicated that the radiotracer accumulation in tumor lesions is probably related to the overexpression of L-PGDS.
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Affiliation(s)
- Ho-Lien Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsinghua University, Hsinchu, Taiwan
| | - Ying-Cheng Huang
- Department of Neurosurgery, Chang-Gung memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Yuan Lee
- Department of Biomedical Engineering and Environmental Sciences, National Tsinghua University, Hsinchu, Taiwan
| | - Chun-Nan Yeh
- Department of Surgery, Chang-Gung memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan
| | - Kun-Ju Lin
- Department of Nuclear Medicine, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan
| | - Chung-Shan Yu
- Department of Biomedical Engineering and Environmental Sciences, National Tsinghua University, Hsinchu, Taiwan
- Institute of Nuclear Engineering and Sciences, National Tsinghua University, Hsinchu, Taiwan
- * E-mail:
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34
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Burke BP, Clemente GS, Archibald SJ. Boron-18F containing positron emission tomography radiotracers: advances and opportunities. CONTRAST MEDIA & MOLECULAR IMAGING 2014; 10:96-110. [DOI: 10.1002/cmmi.1615] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 06/14/2014] [Accepted: 06/26/2014] [Indexed: 12/27/2022]
Affiliation(s)
- Benjamin P. Burke
- Department of Chemistry; University of Hull; Hull HU6 7RX UK
- Positron Emission Tomography Research Centre; University of Hull; Hull HU6 7RX UK
| | - Gonçalo S. Clemente
- Positron Emission Tomography Research Centre; University of Hull; Hull HU6 7RX UK
| | - Stephen J. Archibald
- Department of Chemistry; University of Hull; Hull HU6 7RX UK
- Positron Emission Tomography Research Centre; University of Hull; Hull HU6 7RX UK
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35
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Cresswell AJ, Davies SG, Roberts PM, Thomson JE. Beyond the Balz-Schiemann reaction: the utility of tetrafluoroborates and boron trifluoride as nucleophilic fluoride sources. Chem Rev 2014; 115:566-611. [PMID: 25084541 DOI: 10.1021/cr5001805] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Alexander J Cresswell
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford , Mansfield Road, Oxford OX1 3TA, United Kingdom
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36
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Yuan MS, Wang Q, Wang W, Wang DE, Wang J, Wang J. Truxene-cored π-expanded triarylborane dyes as single- and two-photon fluorescent probes for fluoride. Analyst 2014; 139:1541-9. [DOI: 10.1039/c3an02179c] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two triarylboranes were synthesized and they exhibited high selectivity and sensitivity to fluoride as both single-photon and two-photon fluorescent probes.
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Affiliation(s)
- Mao-Sen Yuan
- College of Science
- Northwest A&F University
- Yangling 712100, P.R. China
- State Key Laboratory of Crystal Materials
- Shandong University
| | - Qi Wang
- College of Science
- Northwest A&F University
- Yangling 712100, P.R. China
| | - Wenji Wang
- College of Science
- Northwest A&F University
- Yangling 712100, P.R. China
| | - Dong-En Wang
- College of Science
- Northwest A&F University
- Yangling 712100, P.R. China
| | - Junru Wang
- College of Science
- Northwest A&F University
- Yangling 712100, P.R. China
| | - Jinyi Wang
- College of Science
- Northwest A&F University
- Yangling 712100, P.R. China
- Shaanxi Key Laboratory of Molecular Biology for Agriculture
- Northwest A&F University
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37
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Beckmann J, Hupf E, Lork E, Mebs S. Peri-substituted (ace)naphthylphosphinoboranes. (Frustrated) Lewis pairs. Inorg Chem 2013; 52:11881-8. [PMID: 24080026 DOI: 10.1021/ic401406k] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The synthesis and molecular structures of 1-(diphenylphosphino)-8-naphthyldimesitylborane (1) and 5-(diphenylphosphino)-6-acenaphthyldimesitylborane (2) are reported. The experimentally determined P-B peri distances of 2.162(2) and 3.050(3) Å allow 1 and 2 to be classified as regular and frustrated Lewis pairs. The electronic characteristics of the (non)bonding P-B contacts are determined by analysis of a set of real-space bonding indicators (RSBIs) derived from the theoretically calculated electron and pair densities. These densities are analyzed utilizing the atoms-in-molecules (AIM), stockholder, and electron-localizability-indicator (ELI-D) space partitioning schemes. The recently introduced mapping of the electron localizability on the ELI-D basin surfaces is also applied. All RSBIs clearly discriminate the bonding P-B contact in 1 from the nonbonding P-B contact in 2, which is due to the fact that the acenaphthene framework is rather rigid, whereas the naphthyl framework shows sufficient conformational flexibility, allowing shorter peri interations. The results are compared to the previously known prototypical phosphinoborane Ph3PB(C6F5)3, which serves as a reference for a bonding P-B interaction. The most prominent features of the nonbonding P-B contact in 2 are the lack of an AIM bond critical point, the unaffected Hirshfeld surfaces of the P and B atomic fragments, and the negligible penetration of the electron population of the ELI-D lone pair basin of the P atom into the AIM B atomic basin.
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Affiliation(s)
- Jens Beckmann
- Institut für Anorganische Chemie, Universität Bremen , Leobener Straße, 28359 Bremen, Germany
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38
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Beckmann J, Do TG, Grabowsky S, Hupf E, Lork E, Mebs S. Peri-Interactions in 8-Diphenylphosphino-1-bromonaphthalene, 6-Diphenylphosphino-5-bromoacenaphthene, and Derivatives. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300272] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Zhao H, Leamer LA, Gabbaï FP. Anion capture and sensing with cationic boranes: on the synergy of Coulombic effects and onium ion-centred Lewis acidity. Dalton Trans 2013; 42:8164-78. [DOI: 10.1039/c3dt50491c] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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40
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Gopalakrishna TY, Reddy JS, Anand VG. Antiaromatic Supramolecules: F⋅⋅⋅S, F⋅⋅⋅Se, and F⋅⋅⋅π Intermolecular Interactions in 32 π Expanded Isophlorins. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207987] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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Gopalakrishna TY, Reddy JS, Anand VG. Antiaromatic Supramolecules: F⋅⋅⋅S, F⋅⋅⋅Se, and F⋅⋅⋅π Intermolecular Interactions in 32 π Expanded Isophlorins. Angew Chem Int Ed Engl 2012; 52:1763-7. [DOI: 10.1002/anie.201207987] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 11/11/2012] [Indexed: 11/06/2022]
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42
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Melaimi M, Gabbaï FP. Synthesis and Electrochemical Behavior of Mixed Organoboron/Organomercury Compounds. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201200098] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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Zhao H, Gabbaı̈ FP. On the Synergy of Coulombic and Chelate Effects in Bidentate Diboranes: Synthesis and Anion Binding Properties of a Cationic 1,8-Diborylnaphthalene. Organometallics 2012. [DOI: 10.1021/om2012216] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haiyan Zhao
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - François P. Gabbaı̈
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
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44
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Xia Y, Viel S, Wang Y, Ziarelli F, Laurini E, Posocco P, Fermeglia M, Qu F, Pricl S, Peng L. Rationalizing the F···S interaction discovered within a tetrafluorophenylazido-containing bola-phospholipid. Chem Commun (Camb) 2012; 48:4284-6. [PMID: 22314257 DOI: 10.1039/c2cc18147a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A bola-lipid bearing tetrafluorophenylazido chromophore in the diacyl chain displayed puzzling (19)F NMR, leading to the evidence and rationalization of a F···S weak interaction that is important for altering molecular structures and imposing novel and special properties on fluorinated compounds.
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Affiliation(s)
- Yi Xia
- Aix-Marseille Université, CNRS CINaM UMR 7325, Marseille, France
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45
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Li Z, Chansaenpak K, Liu S, Wade CR, Conti PS, Gabbaï FP. Harvesting 18F-fluoride ions in water via direct 18F–19F isotopic exchange: radiofluorination of zwitterionic aryltrifluoroborates and in vivo stability studies. MEDCHEMCOMM 2012. [DOI: 10.1039/c2md20105d] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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46
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Lin TP, Nelson RC, Wu T, Miller JT, Gabbaï FP. Lewis acid enhancement by juxtaposition with an onium ion: the case of a mercury stibonium complex. Chem Sci 2012. [DOI: 10.1039/c2sc00904h] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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47
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Wade CR, Gabbaï FP. Fluoride Anion Chelation by a Bidentate Stibonium–Borane Lewis Acid. Organometallics 2011. [DOI: 10.1021/om200499y] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Casey R. Wade
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77843-3255, United States
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77843-3255, United States
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48
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Cao D, Zhao H, Gabbaï FP. A sandwich complex of trimesitylborane Mes3B: synthesis, characterization and anion binding properties of Mes2B[(η6-Mes)FeCp]+. NEW J CHEM 2011. [DOI: 10.1039/c1nj20290a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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