1
|
Khan D, Shaily. Recent advances in isatin-based chemosensors: A comprehensive review. LUMINESCENCE 2024; 39:e4756. [PMID: 38838075 DOI: 10.1002/bio.4756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/12/2024] [Accepted: 03/28/2024] [Indexed: 06/07/2024]
Abstract
A comprehensive review presents an illuminating exploration of the vast potential of isatin, an easily accessible organic compound. This review is a valuable resource, offering a concise yet comprehensive account of the recent breakthroughs in isatin applications in medicinal chemistry, fluorescence sensing, and organic synthesis. Moreover, it dives into the exciting advancements in isatin-based chemosensors, demonstrating their remarkable ability to detect and recognize diverse cations and anions with exceptional precision. Researchers and scientists in the fields of sensing and organic chemistry will find this review indispensable for sparking innovation and developing cutting-edge technologies with significant real-world impact.
Collapse
Affiliation(s)
- Danish Khan
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, India
| | - Shaily
- Department of Chemistry, D. B. S. (P.G.) College, Dehradun, India
| |
Collapse
|
2
|
Abdo Moustafa E, Abdelrasheed Allam H, Fouad MA, El Kerdawy AM, Nasser Eid El-Sayed N, Wagner C, Abdel-Aziz HA, Abdel Fattah Ezzat M. Discovery of novel quinolin-2-one derivatives as potential GSK-3β inhibitors for treatment of Alzheimer's disease: Pharmacophore-based design, preliminary SAR, in vitro and in vivo biological evaluation. Bioorg Chem 2024; 146:107324. [PMID: 38569322 DOI: 10.1016/j.bioorg.2024.107324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024]
Abstract
Recently, glycogen synthase kinase-3β (GSK-3β) has been considered as a critical factor implicated in Alzheimer's disease (AD). In a previous work, a 3D pharmacophore model for GSK-3β inhibitors was created and the results suggested that derivative ZINC67773573, VIII, may provide a promising lead for developing novel GSK-3β inhibitors for the AD's treatment. Consequently, in this work, novel series of quinolin-2-one derivatives were synthesized and assessed for their GSK-3β inhibitory properties. In vitro screening identified three compounds: 7c, 7e and 7f as promising GSK-3β inhibitors. Compounds 7c, 7e and 7f were found to exhibit superior inhibitory effect on GSK-3β with IC50 value ranges between 4.68 ± 0.59 to 8.27 ± 0.60 nM compared to that of staurosporine (IC50 = 6.12 ± 0.74 nM). Considerably, compounds 7c, 7e and 7f effectively lowered tau hyperphosphorylated aggregates and proving their safety towards the SH-SY5Y and THLE2 normal cell lines. The most promising compound 7c alleviated cognitive impairments in the scopolamine-induced model in mice. Compound 7c's activity profile, while not highly selective, may provide a starting point and valuable insights into the design of multi-target inhibitors. According to the ADME prediction results, compounds 7c, 7e and 7f followed Lipinski's rule of five and could almost permeate through the BBB. Molecular docking simulations showed that these compounds are well accommodated in the ATP binding site interacting by its quinoline-2-one ring through hydrogen bonding with the key amino acids Asp133 and Val135 at the hinge region. The findings of this study suggested that these new compounds may have potential as anti-AD drugs targeting GSK-3β.
Collapse
Affiliation(s)
| | - Heba Abdelrasheed Allam
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt
| | - Marwa A Fouad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt; Pharmaceutical Chemistry Department, School of Pharmacy, Newgiza University, Newgiza, km 22 Cairo- Alexandria Desert Road, Cairo, Egypt
| | - Ahmed M El Kerdawy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt; School of Pharmacy, College of Health and Science, University of Lincoln, Joseph Banks Laboratories, Green Lane, Lincoln, United Kingdom
| | | | - Christoph Wagner
- Institut für Chemie, Naturwissenschaftliche FakultätII, Universität Halle, Kurt-Mothes-Str. 206120, Halle, Germany
| | - Hatem A Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Giza, P.O. Box 12622, Egypt
| | - Manal Abdel Fattah Ezzat
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, 11562 Cairo, Egypt.
| |
Collapse
|
3
|
Verma N, Tyagi R, Khanna A, Malviya M, Sagar R. Electro-organic synthesis of isatins and hydrazones through C-N cross-coupling and C(sp 2)-H/C(sp 3)-H functionalization. Org Biomol Chem 2023; 21:6707-6714. [PMID: 37563999 DOI: 10.1039/d3ob01128c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
An efficient and unique approach to synthesize isatin (indole-2,3-dione) from 2-aminoacetophenone under electrochemical conditions supported by I2-DMSO through C-N cross-coupling and C(sp2)-H/C(sp3)-H functionalization is presented. This synthetic method spans a wide range of substituted 2-aminoacetophenone substrates. The use of iodine as a promoter and shorter reaction times produced good to very good yields of isatin derivatives, which is a significant improvement over the reaction in a batch process. Further, hydrazones of isatin were synthesized by using hydrazine hydrate which produces electrochemically active molecules, namely isatin-hydrazones. The hydrazones of acetophenone were also obtained using the same reaction protocol. Additionally, the effect of increasing scan rate studied using cyclic voltammetry shows that the process followed a diffusion-controlled mechanism.
Collapse
Affiliation(s)
- Neetu Verma
- Department of Chemistry, IIT (Banaras Hindu University), Varanasi-221005, India.
| | - Rajdeep Tyagi
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi-110067, India.
| | - Ashish Khanna
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Manisha Malviya
- Department of Chemistry, IIT (Banaras Hindu University), Varanasi-221005, India.
| | - Ram Sagar
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi-110067, India.
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| |
Collapse
|
4
|
Wegermann CA, Pirota V, Monzani E, Casella L, Costa LAS, Novato WTG, Machini MT, da Costa Ferreira AM. Interaction studies of oxindole-derivatives with β-amyloid peptides inhibiting its aggregation induced by metal ions. J Inorg Biochem 2023; 245:112227. [PMID: 37156056 DOI: 10.1016/j.jinorgbio.2023.112227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/08/2023] [Accepted: 04/12/2023] [Indexed: 05/10/2023]
Abstract
Some hydrazones and Schiff bases derived from isatin, an endogenous oxindole formed in the metabolism of tryptophan, were obtained to investigate their effects on in vitro aggregation of β-amyloid peptides (Aβ), macromolecules implicated in Alzheimer's disease. Some hydrazone ligands, prepared by condensation reactions of isatin with hydrazine derivatives, showed a large affinity binding to the synthetic peptides Aβ, particularly to Aβ1-16. Measurements by NMR spectroscopy indicated that those interactions occur mainly at the metal binding site of the peptide, involving His6, His13, and His14 residues, and that hydrazone E-diastereoisomer interacts preferentially with the amyloid peptides. Experimental results were consistent with simulations using a docking approach, where it is demonstrated that the amino acid residues Glu3, His6, His13, and His14 are those that mostly interact with the ligands. Further, these oxindole-derived ligands can efficiently chelate copper(II) and zinc(II) ions, forming moderate stable [ML] 1:1 species. The corresponding formation constants were determined by UV/Vis spectroscopy, by titrations of the ligands with increasing amounts of metal salts, and the obtained log K values were in the range 2.74 to 5.11. Both properties, good affinity for amyloid peptides, and reasonably good capacity of chelating biometal ions, like copper and zinc, can explain the efficient inhibition of Aβ fragments aggregation, as shown by experiments carried out with the oxindole derivatives in the presence of metal ions.
Collapse
Affiliation(s)
- Camila Anchau Wegermann
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil.
| | - Valentina Pirota
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy.
| | - Enrico Monzani
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy.
| | - Luigi Casella
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy.
| | - Luiz Antônio Sodré Costa
- NEQC - Núcleo de Estudos em Química Computacional, Departamento de Química, ICE, Universidade Federal de Juiz de Fora, MG, Brazil.
| | - Willian Tássio Gomes Novato
- NQTCM, Núcleo de Química Teórica e Computacional de Macaé, Instituto Multidisciplinar de Química, CM UFRJ Macaé, Universidade Federal do Rio de Janeiro, RJ, Brazil.
| | - M Teresa Machini
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil.
| | - Ana Maria da Costa Ferreira
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil.
| |
Collapse
|
5
|
Cenalmor A, Pascual E, Gil-Manso S, Correa-Rocha R, Suárez JR, García-Álvarez I. Evaluation of Anti-Neuroinflammatory Activity of Isatin Derivatives in Activated Microglia. Molecules 2023; 28:4882. [PMID: 37375437 DOI: 10.3390/molecules28124882] [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: 05/21/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 06/29/2023] Open
Abstract
Neuroinflammation plays a crucial role in the progression of Alzheimer's disease and other neurodegenerative disorders. Overactivated microglia cause neurotoxicity and prolong the inflammatory response in many neuropathologies. In this study, we have synthesised a series of isatin derivatives to evaluate their anti-neuroinflammatory potential using lipopolysaccharide activated microglia as a cell model. We explored four different substitutions of the isatin moiety by testing their anti-neuroinflammatory activity on BV2 microglia cells. Based on the low cytotoxicity and the activity in reducing the release of nitric oxide, pro-inflammatory interleukin 6 and tumour necrosis factor α by microglial cells, the N1-alkylated compound 10 and the chlorinated 20 showed the best results at 25 µM. Taken together, the data suggest that 10 and 20 are promising lead compounds for developing new neuroprotective agents.
Collapse
Affiliation(s)
- Alejandro Cenalmor
- Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Pozuelo de Alarcón, 28223 Madrid, Spain
| | - Elena Pascual
- Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Pozuelo de Alarcón, 28223 Madrid, Spain
| | - Sergio Gil-Manso
- Laboratory of Immune-Regulation, Gregorio Marañón Health Research Institute (IISGM), 28009 Madrid, Spain
| | - Rafael Correa-Rocha
- Laboratory of Immune-Regulation, Gregorio Marañón Health Research Institute (IISGM), 28009 Madrid, Spain
| | - José Ramón Suárez
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Isabel García-Álvarez
- Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Pozuelo de Alarcón, 28223 Madrid, Spain
| |
Collapse
|
6
|
Kushwaha AK, Maury SK, Kamal A, Singh HK, Pandey S, Singh S. Visible-light-absorbing C-N cross-coupling for the synthesis of hydrazones involving C(sp 2)-H/C(sp 3)-H functionalization. Chem Commun (Camb) 2023; 59:4075-4078. [PMID: 36938640 DOI: 10.1039/d2cc07001d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
An efficient C-N cross-coupling approach for the synthesis of hydrazones was developed through C(sp2)-H and C(sp3)-H functionalization of indole and methylarene under visible light irradiation using photocatalyst eosin Y, ethanol:water as a green solvent and atmospheric air as an oxidant. With the aid of eosin Y, the C-H bonds of indole and methylarenes were activated followed by coupling with arylhydrazines. The procedure was applied to a wide variety of substrates with good functional group compatibility, offering a creative way to make hydrazones from inexpensive and easily accessible raw materials. The absence of metals, low cost, environmental friendliness, green solvent, non-toxicity, ease of handling, and utilization of renewable energy sources like visible light are some of this method's primary advantages.
Collapse
Affiliation(s)
- Ambuj Kumar Kushwaha
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi - 221 005, UP, India.
| | - Suresh Kumar Maury
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi - 221 005, UP, India.
| | - Arsala Kamal
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi - 221 005, UP, India.
| | - Himanshu Kumar Singh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi - 221 005, UP, India.
| | - Shikha Pandey
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi - 221 005, UP, India.
| | - Sundaram Singh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi - 221 005, UP, India.
| |
Collapse
|
7
|
Sigalov MV, Chipanina NN, Oznobikhina LP, Sterkhova IV, Shainyan BA. 2-(Pyridin-2-ylmethylene)indan-1-ones: The first study of E/Z isomerization of cyclic chalcones with electron-deficient hetaryl moiety. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Roseau M, Chausset-Boissarie L, Gremetz S, Roth PMC, Penhoat M. Multiple wavelength (365-475 nm) complete actinometric characterization of Corning ® Lab Photo Reactor using azobenzene as a highly soluble, cheap and robust chemical actinometer. Photochem Photobiol Sci 2022; 21:421-432. [PMID: 35147919 DOI: 10.1007/s43630-022-00171-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/08/2022] [Indexed: 11/29/2022]
Abstract
The characterization of commercially available Corning® Lab Photo Reactor by actinometry at different wavelengths (365, 385, 405 and 475 nm) using azobenzene E ↔ Z photoisomerization is reported. By comparison with photon fluxes determined externally using a radiometer, this method based on NMR spectroscopy is rapid, cheap, robust, reproducible and can applied to UVA-visible range, compared to previously described chemical actinometric protocols. Recalculation of isatin N2-phenylhydrazone isomerization quantum yield at 405 nm gave almost the same value as the literature data ([Formula: see text] = 0.0013) and confirmed the robustness and applicability of this methodology.
Collapse
Affiliation(s)
| | - Laëtitia Chausset-Boissarie
- USR 3290, MSAP (Miniaturisation pour la Synthèse l'Analyse et la Protéomique), Université de Lille, 59000, Lille, France
| | | | | | - Maël Penhoat
- USR 3290, MSAP (Miniaturisation pour la Synthèse l'Analyse et la Protéomique), Université de Lille, 59000, Lille, France.
| |
Collapse
|
9
|
Wegermann CA, Monzani E, Casella L, Ribeiro MA, Bruzeguini CE, Vilcachagua JD, Costa LAS, Ferreira AMDC. Unveiling geometrical isomers and tautomers of isatin-hydrazones by NMR spectroscopy. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
10
|
Devkota S, Mohandoss S, Lee YR. Indium( iii)-catalyzed efficient synthesis of 3-arylhydrazonoindolin-2-ones and their fluorescent metal sensing studies. NEW J CHEM 2022. [DOI: 10.1039/d1nj05715d] [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
In(iii)-catalyzed strategy for the preparation of 3-arylhydrazonoindolin-2-ones from 3-diazoindoles is developed and used for Fe3+ and Hg2+ ion sensing.
Collapse
Affiliation(s)
- Shreedhar Devkota
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sonaimuthu Mohandoss
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| |
Collapse
|
11
|
Mravec B, Marini A, Tommasini M, Filo J, Cigáň M, Mantero M, Tosi S, Canepa M, Bianco A. Structural and Spectroscopic Properties of Benzoylpyridine‐Based Hydrazones. Chemphyschem 2021; 22:533-541. [DOI: 10.1002/cphc.202000941] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/24/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Bernard Mravec
- Institute of Chemistry Faculty of Natural Sciences Comenius University Ilkovičova 6, 842 15 Bratislava Slovakia
| | - Anna Marini
- Dipartimento di Fisica Università di Genova Via Dodecaneso 33 Genova 16146 Italy
| | - Matteo Tommasini
- Dipartimento di Chimica Materiali e Ingegneria Chimica Politecnico di Milano P.zza Leonardo da Vinci 32 20133 Milano Italy
| | - Juraj Filo
- Institute of Chemistry Faculty of Natural Sciences Comenius University Ilkovičova 6, 842 15 Bratislava Slovakia
| | - Marek Cigáň
- Institute of Chemistry Faculty of Natural Sciences Comenius University Ilkovičova 6, 842 15 Bratislava Slovakia
| | | | - Silvano Tosi
- Dipartimento di Fisica Università di Genova Via Dodecaneso 33 Genova 16146 Italy
- INFN Sezione di Genova Via Dodecaneso 33 Genova 16146 Italy
| | - Maurizio Canepa
- OPTMATLAB Dipartimento di Fisica Università di Genova Via Dodecaneso 33 Genova 16146 Italy
| | - Andrea Bianco
- INAF – Osservatorio Astronomico di Brera via Bianchi 46 23807 Merate Italy
| |
Collapse
|
12
|
Tisovský P, Csicsai K, Donovalová J, Šandrik R, Kožíšek J, Gáplovský A. Tautomerization of Z and E isomers of dipolar isatin bipyridylhydrazone complexes with Zn(II) ions. Photochromism - ON/OFF switching. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
13
|
ON/OFF Photostimulation of Isatin Bipyridyl Hydrazones: Photochemical and Spectral Study. Molecules 2019; 24:molecules24142668. [PMID: 31340543 PMCID: PMC6680666 DOI: 10.3390/molecules24142668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/18/2019] [Accepted: 07/21/2019] [Indexed: 11/30/2022] Open
Abstract
Four novel isatin hydrazones containing bipyridyl fragments were synthesized as potential ON/OFF switches. Hydrazone Z-isomers exhibit high thermal stability. The characteristic photochemical reaction for all studied hydrazones is the Z–E isomerization in CHCl3. After irradiation of hydrazones 1 and 2 in dimethylformamide (DMF), the photoreaction products are tautomers. When using light with the appropriate wavelength, the photo-tautomerization reaction is reversible. In these conditions, studied hydrazones have ON/OFF switch properties. In the case of hydrazones 1 and 2, by alternating heat and light stimulation it is possible to control the isomerization process reversibly. In the presence of fluoride ions, NH hydrogen from the studied hydrazones is cleaved, and the corresponding anions are formed. The resulting anions of Z-isomers are changed to the corresponding E-isomer at room temperature.
Collapse
|
14
|
Isatin-1,8-Naphthalimide Hydrazones: A Study of Their Sensor and ON/OFF Functionality. Molecules 2019; 24:molecules24030397. [PMID: 30678292 PMCID: PMC6385022 DOI: 10.3390/molecules24030397] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 01/18/2019] [Accepted: 01/19/2019] [Indexed: 01/18/2023] Open
Abstract
Five novel hydrazones derived from substituted isatins were synthesized as potential anion sensors. Using UV-VIS, FTIR, NMR and fluorescence spectroscopy, these compounds’ tautomeric equilibrium and Z-E photoisomerization were studied in DMF and CHCl3, depending on the hydrazone concentrations, the presence of basic anions and light stimulation. Anion recognition aspects (PF6−, HSO4−, Br−, Cl−, NO3−, F− and CH3COO−) and these receptors’ detection limits were also studied. We also tested the light-stimulated ON-OFF functionality of these compounds in the presence or absence of these anions.
Collapse
|
15
|
Filo J, Tisovský P, Csicsai K, Donovalová J, Gáplovský M, Gáplovský A, Cigáň M. Tautomeric photoswitches: anion-assisted azo/azine-to-hydrazone photochromism. RSC Adv 2019; 9:15910-15916. [PMID: 35521389 PMCID: PMC9064339 DOI: 10.1039/c9ra02906k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 05/15/2019] [Indexed: 11/21/2022] Open
Abstract
The photoswitching behaviour of isatin 4-nitrophenylhydrazones in presence of anions was investigated.
Collapse
Affiliation(s)
- Juraj Filo
- Institute of Chemistry
- Faculty of Natural Sciences
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - Pavol Tisovský
- Institute of Chemistry
- Faculty of Natural Sciences
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - Klaudia Csicsai
- Institute of Chemistry
- Faculty of Natural Sciences
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - Jana Donovalová
- Institute of Chemistry
- Faculty of Natural Sciences
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - Martin Gáplovský
- Department of Pharmaceutical Chemistry
- Faculty of Pharmacy
- Comenius University
- SK-832 32 Bratislava
- Slovakia
| | - Anton Gáplovský
- Institute of Chemistry
- Faculty of Natural Sciences
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - Marek Cigáň
- Institute of Chemistry
- Faculty of Natural Sciences
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| |
Collapse
|
16
|
Horváth M, Cigáň M, Filo J, Jakusová K, Gáplovský M, Šándrik R, Gáplovský A. Isatin pentafluorophenylhydrazones: interesting conformational change during anion sensing. RSC Adv 2016. [DOI: 10.1039/c6ra22396f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Easily synthesized and highly efficient F− and CH3COO− anion sensors based on reversible keto (hydrazo)/enolate (azo) acid–base equilibrium followed by interesting conformational change in solution.
Collapse
Affiliation(s)
- M. Horváth
- Faculty of Natural Sciences
- Institute of Chemistry
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - M. Cigáň
- Faculty of Natural Sciences
- Institute of Chemistry
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - J. Filo
- Faculty of Natural Sciences
- Institute of Chemistry
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - K. Jakusová
- Faculty of Natural Sciences
- Institute of Chemistry
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - M. Gáplovský
- Department of Pharmaceutical Chemistry
- Faculty of Pharmacy
- Comenius University
- SK-832 32 Bratislava
- Slovakia
| | - R. Šándrik
- Faculty of Natural Sciences
- Institute of Chemistry
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| | - A. Gáplovský
- Faculty of Natural Sciences
- Institute of Chemistry
- Comenius University
- SK-842 15 Bratislava
- Slovakia
| |
Collapse
|