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Simón Marqués P, Andrés Castán JM, Galan LA, Allain M, Maury O, Le Bahers T, Blanchard P, Cabanetos C. Investigation of the K 4[Fe(CN) 6]-Mediated Mono- and Bis-Palladium-Catalyzed Cyanation of the Benzothioxanthene Core. J Org Chem 2021; 86:5901-5907. [PMID: 33793231 DOI: 10.1021/acs.joc.1c00318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The pallado-catalyzed cyanation of benzothioxanthene imide (BTXI) derivatives is explored herein. Once optimized on the monobromo BTXI, mild reaction conditions were successfully applied to the dibromo derivative affording two regioisomers that have been isolated and structurally solved. Additional hydrogen-deuterium exchange experiments were carried out to support a proposed mechanism involving the formation of a five-membered palladacycle intermediate in the bay area. As well as impacting the structural, photo physical and electrochemical properties of the BTXI core, nitrile moieties were successfully used as orthogonal protecting groups, thus opening doors to new design principles.
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Affiliation(s)
| | | | - Laura Abad Galan
- Université Lyon, Ecole Normale Superieure de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Magali Allain
- Université Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
| | - Olivier Maury
- Université Lyon, Ecole Normale Superieure de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Tangui Le Bahers
- Université Lyon, Ecole Normale Superieure de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Philippe Blanchard
- Université Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
| | - Clément Cabanetos
- Université Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
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Dalinot C, Simón Marqués P, Andrés Castán JM, Josse P, Allain M, Abad Galán L, Monnereau C, Maury O, Blanchard P, Cabanetos C. Regioselective Monohalogenation and Homo/Hetero Dihalogenation of Benzothioxanthene Monoimide. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Clément Dalinot
- MOLTECH-Anjou, CNRS UMR 6200; University of Angers; 2 Bd Lavoisier 49045 Angers France
| | - Pablo Simón Marqués
- MOLTECH-Anjou, CNRS UMR 6200; University of Angers; 2 Bd Lavoisier 49045 Angers France
| | - José M. Andrés Castán
- MOLTECH-Anjou, CNRS UMR 6200; University of Angers; 2 Bd Lavoisier 49045 Angers France
| | - Pierre Josse
- MOLTECH-Anjou, CNRS UMR 6200; University of Angers; 2 Bd Lavoisier 49045 Angers France
| | - Magali Allain
- MOLTECH-Anjou, CNRS UMR 6200; University of Angers; 2 Bd Lavoisier 49045 Angers France
| | - Laura Abad Galán
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1; F-69342 Lyon France
| | - Cyrille Monnereau
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1; F-69342 Lyon France
| | - Olivier Maury
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1; F-69342 Lyon France
| | - Philippe Blanchard
- MOLTECH-Anjou, CNRS UMR 6200; University of Angers; 2 Bd Lavoisier 49045 Angers France
| | - Clément Cabanetos
- MOLTECH-Anjou, CNRS UMR 6200; University of Angers; 2 Bd Lavoisier 49045 Angers France
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Yang T, Zuo Y, Zhang Y, Gou Z, Wang X, Lin W. Novel fluorene-based fluorescent probe with excellent stability for selective detection of SCN - and its applications in paper-based sensing and bioimaging. J Mater Chem B 2019; 7:4649-4654. [PMID: 31364673 DOI: 10.1039/c9tb00742c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
SCN- is one of the most important anions in metabolic processes. However, the investigation of SCN- in living systems is restricted by the lack of stable functional molecular tools. Herein, the first fluorene-based polymer fluorescent probe V1 was synthesized through rational design. Compared with small molecule fluorescent probes, V1 exhibited excellent fluorescence stability in bovine serum albumin (BSA) solution. Furthermore, the V1-based paper sensor was highly selective toward SCN- in aqueous solution. Significantly, these merits of the probe V1 enable the detection of SCN- in different living cell lines and zebrafish.
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Affiliation(s)
- Tingxin Yang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Yujing Zuo
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Yu Zhang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Zhiming Gou
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Xiaoni Wang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
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Visualization of carbon nanotubes dispersion in composite by using confocal laser scanning microscopy. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kollár J, Chmela Š, Hrdlovič P. Spectral properties of bichromophoric probes based on pyrene and benzothioxanthene in solution and in polymer matrices. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.06.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Preparation and spectral characterization of fluorescence probes based on 4-N,N-dimethylamino benzoic acid and sterically hindered amines. J Fluoresc 2012; 22:1371-81. [PMID: 22730137 DOI: 10.1007/s10895-012-1076-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Accepted: 06/11/2012] [Indexed: 10/28/2022]
Abstract
The adducts of simple chromophore 4-N,N-dimethylamino benzoic acid with 2,2,6,6-tetrametyl-4-hydroxy- or 4-amino-piperidine were examined as fluorescence probes (spin double sensors) to monitor radical processes. The links in the adducts were either an ester or amide group, and the sterically hindered amines were in the form of -NH, -NO• and -NOR. The spectral properties of the three related derivatives (esters or amides) were quite similar. The maxima of the absorption spectra were in the range of 295-315 nm, and the maximum of fluorescence was located in the range of 330-360 nm, depending on the polarity of the solvent. In polar solvents, a red-shifted fluorescence band at 460-475 nm was observed. The fluorescence of these derivatives was rather weak as compared to anthracene under the same conditions. The Stokes shift was large, as high as 6,000 cm(-1), indicating the formation of a twisted intra-molecular charge transfer (TICT) state. No large differences in Stokes shifts were observed in polymer matrices of poly(methyl methacrylate), polystyrene and poly(vinyl chloride). The extent of intramolecular quenching was expressed as Φ(NX)/Φ(NO) (X = H, NOR) and was in the range of 1-3 in solution and as high as 8 in polymer matrices. The low efficiency of intramolecular quenching limits the application of these new adducts as fluorescence probes for the monitoring of radical processes in solution but favors their application in polymer matrices.
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Danko M, Hrdlovič P, Chmela Š. The photolysis in polymer matrices of dyes containing a benzothioxanthene chromophore linked with a hindered amine. Polym Degrad Stab 2011. [DOI: 10.1016/j.polymdegradstab.2011.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Chmela Š, Hrčková L. Nitroxide mediated styrene radical polymerization using a fluorescence marked mediator. Eur Polym J 2009. [DOI: 10.1016/j.eurpolymj.2009.06.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hrdlovič P, Chmela Š, Danko M, Sarakha M, Guyot G. Spectral Properties of Probes Containing Benzothioxanthene Chromophore Linked with Hindered Amine in Solution and in Polymer Matrices. J Fluoresc 2007; 18:393-402. [DOI: 10.1007/s10895-007-0279-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2007] [Accepted: 10/30/2007] [Indexed: 11/30/2022]
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