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Belal K, El-Askalany AH, Ghaith EA, Fathi Salem Molouk A. Novel synthesized triazole derivatives as effective corrosion inhibitors for carbon steel in 1M HCl solution: experimental and computational studies. Sci Rep 2023; 13:22180. [PMID: 38092867 PMCID: PMC10719362 DOI: 10.1038/s41598-023-49468-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023] Open
Abstract
This article outlines the synthesis of two derivatives of 4-amino-5-hydrazineyl-4H-1,2,4-triazole-3-thiol for the prevention of carbon steel corrosion in 1M HCl solution. These derivatives are (Z)-3-(1-(2-(4-amino-5-mercapto-4H-1,2,4-triazol-3-yl)hydrazono)ethyl)-2H-chromen-2-one (TZ1) and 5-(2-(9H-fluoren-9-ylidene)hydrazineyl)-4-amino-4H-1,2,4-triazole-3-thiol (TZ2). Weight loss, electrochemical experiments, surface examinations, and theoretical computation are used to evaluate the effectiveness of the two compounds to be used as corrosion inhibitors. Weight loss and electrochemical studies demonstrate that these derivatives reduce the corrosion rate of carbon steel. To examine the morphology and constitution of the carbon steel surface submerged in HCl solution as well as after adding inhibitors, surface examination tests are performed. Analysis of the test solution via UV-visible spectroscopy is employed to check the possibility of complex formation between inhibitor molecules and Fe2+ ions released during the corrosion process. In order to explore their biological activity, the antibacterial activity was investigated against (E. coli and Bacillus subtilis). Finally, theoretical confirmation of the experimental findings is provided by quantum chemical (DFT) and Monte Carlo (MC) simulation studies. More adsorption sites are present in the derivatives of 4-amino-5-hydrazineyl-4H-1,2,4-triazole-3-thiol, which offer a novel perspective for developing new classes of corrosion inhibitors with substantial protective efficacy, especially at high temperatures.
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Affiliation(s)
- Kamelia Belal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - A H El-Askalany
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - Eslam A Ghaith
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - Ahmed Fathi Salem Molouk
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt.
- Faculty of Science, New Mansoura University, New Mansoura City, Egypt.
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Basavaraju M, Bodke YD, Kumar N. Coumarin‐Benzothiazole Hydrazone for Probing of Latent Fingerprints and Anti‐Counterfeiting Applications. ChemistrySelect 2022. [DOI: 10.1002/slct.202200738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Manjunatha Basavaraju
- Department of P.G. Studies and Research in Chemistry Jnana Sahyadri Kuvempu University, Shankaraghatta- 577451 Shivamogga Karnataka India
| | - Yadav D. Bodke
- Department of P.G. Studies and Research in Chemistry Jnana Sahyadri Kuvempu University, Shankaraghatta- 577451 Shivamogga Karnataka India
| | - Naveen Kumar
- Department of P.G. Studies and Research in Chemistry, P.G. Centre, Kadur- 577458 Karnataka India
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Manjunatha B, Bodke YD, Venkatesh T, Pasha KMM, Jain RSK. Synthesis of Novel Sulfonamide Incorporated Azo Compounds as a PotentSolvatochromic and Antimycobacterial Agents. ChemistrySelect 2022. [DOI: 10.1002/slct.202200036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- B. Manjunatha
- Department of P.G. Studies and Research in Chemistry Jnana Sahyadri Kuvempu University Shankaraghatta- 577451 Shivamogga Karnataka India
| | - Yadav D. Bodke
- Department of P.G. Studies and Research in Chemistry Jnana Sahyadri Kuvempu University Shankaraghatta- 577451 Shivamogga Karnataka India
| | - Talavara Venkatesh
- Department of P.G. Studies and Research in Chemistry Jnana Sahyadri Kuvempu University Shankaraghatta- 577451 Shivamogga Karnataka India
| | - K M. Mussuvir Pasha
- Department of P.G. Studies and Research in Chemistry Vijayanagara Sri Krishnadevaraya University Ballari 583105 Karnataka India
| | - R. Sandeep Kumar Jain
- Department of P.G. Studies and Research in Biotechnology Jnana Sahyadri Kuvempu University Shankaraghatta 577451 Shivamogga Karnataka India
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Manjunatha B, Bodke YD, Mounesh, Nagaraja O, Navaneethgowda PV. Coumarin-pyridone conjugate as a fluorescent tag for LFPs visualization and electrochemical sensor for nitrite detection. NEW J CHEM 2022. [DOI: 10.1039/d1nj04751e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this work, a D–π–A based coumarin–pyridone conjugate (CPC) was synthesised by a one-pot multicomponent reaction and the structure was proven from infrared and nuclear magnetic resonance spectroscopies and high-resolution mass spectrometry.
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Affiliation(s)
- B. Manjunatha
- Department of P. G. Studies and Research in Chemistry, Jnana Sahyadri, Kuvempu University Shankaraghatta, 577451, Shivamogga, Karnataka, India
| | - Yadav D. Bodke
- Department of P. G. Studies and Research in Chemistry, Jnana Sahyadri, Kuvempu University Shankaraghatta, 577451, Shivamogga, Karnataka, India
| | - Mounesh
- Department of P. G. Studies and Research in Chemistry, Vijayanagara Sri Krishnadevaraya University, Ballari-583105, Karnataka, India
| | - O. Nagaraja
- Department of P. G. Studies and Research in Chemistry, Jnana Sahyadri, Kuvempu University Shankaraghatta, 577451, Shivamogga, Karnataka, India
| | - P. V. Navaneethgowda
- Department of P. G. Studies and Research in Chemistry, Jnana Sahyadri, Kuvempu University Shankaraghatta, 577451, Shivamogga, Karnataka, India
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Abstract
Coumarin (2H-chromen-2-one) derivatives have important uses in medicinal and synthetic chemistry, for example, as fluorescent probes. These properties have prompted chemists to develop efficient synthetic methods to synthesize the coumarin core and/or to functionalize it. In this context, many metal-catalyzed syntheses of coumarins have been introduced; among them, copper-catalyzed reactions appear to be very promising owing to the non-toxicity and cheapness of copper complexes. In this mini-review, the results in this field are summarized. We hope to stimulate other applications of these complexes in the preparation of coumarin derivatives.
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Moreira NM, Martelli LSR, Corrêa AG. Asymmetric organocatalyzed synthesis of coumarin derivatives. Beilstein J Org Chem 2021; 17:1952-1980. [PMID: 34386105 PMCID: PMC8353592 DOI: 10.3762/bjoc.17.128] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 07/21/2021] [Indexed: 01/01/2023] Open
Abstract
Coumarin derivatives are essential scaffolds in medicinal and synthetic chemistry. Compounds of this class have shown important activities, such as anticancer and antiparasitic, besides the commercially available drugs. These properties led to the development of efficient and greener synthetic methods to achieve the 2H-chromen-2-one core. In this context, the advances in asymmetric organocatalyzed synthesis of coumarin derivatives are discussed in this review, according to the mode of activation of the catalyst.
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Affiliation(s)
- Natália Menezes Moreira
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP – Brazil
| | - Lorena Suelen Ribeiro Martelli
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP – Brazil
| | - Arlene Gonçalves Corrêa
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP – Brazil
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Synthesis, Thermal and Optical Characterizations of New Lateral Organic Systems. CRYSTALS 2021. [DOI: 10.3390/cryst11050551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
New laterally OCH3-substituted optical organic Schiff base/ester series, namely 4-(4-(hexyloxyphenyl)iminomethyl)-3-methoxyphenyl 4-alkoxybenzoates, were prepared and characterized with different thermal, mesomorphic, and photoactive techniques. The prepared group constitutes five homologues that differ from each other in the number of carbons in the terminal alkoxy chain (n), which varies between n = 6, 8, 10, 12, and 16 carbons. The laterally protruded methoxy group is attached to the central benzene ring that makes an angle of 120° with the molecular long axis. Molecular structures of all newly prepared homologues were fully elucidated via FT-IR, 1H and 13C NMR spectroscopy. Mesomorphic transitions were determined via differential scanning calorimetry (DSC) and the phases identified by polarized optical microscopy (POM). Independent of the length of the terminal alkoxy chain attached to phenyl ester ring, only a monomorphic nematic (N) phase was observed for all the synthesized compounds. A comparative study was made between the present lateral methoxy-substituted homologues and their corresponding laterally-neat analogues. The results revealed that, depending on the length of the alkoxy chain and the presence or absence of the lateral methoxy group, different mesophases with different thermal stability and temperature ranges were observed. Finally, UV-vis spectra showed that the present nematogenic series possess photoactive properties that are of importance for many applications.
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A sterically shielded design on anthracene-based emitters for efficient deep-blue organic light-emitting diodes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kumar N, Udayabhanu, Ali Alghamdi A, Basavaraj RB, Mahadevan KM, Nagaraju G. Sensing and sensitive visualization of latent fingerprints on various surfaces using a versatile fluorescent aggregation-induced emission-based coumarin derivative. LUMINESCENCE 2021; 36:1013-1023. [PMID: 33569853 DOI: 10.1002/bio.4027] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/28/2021] [Accepted: 02/04/2021] [Indexed: 01/13/2023]
Abstract
The marked rise in criminal activity in society has made a difficult task for forensic scientists who aim to track any crime scene effectively, therefore visualization of latent fingerprints (LFPs) plays an increasingly vital role in forensics. In the present report, a highly sensitive solvatochromism, aggregation-induced emission-based 2-(4-nitrophenyl)-3H-benzocoumarin fluorescent dye (CFD) was fabricated using an ultrasonication protocol. The fluorescence properties of the CFD were analyzed using fluorescence spectrophotometer. The CFD produced a greenish yellow emission in solid and fluid states. An in-depth visualization of LFPs showed detailed ridge patterns under normal and ultraviolet light sources (254 and 365 nm) due to the excellent chemisorption of CFD onto the ridge patterns on the finger. All three types of ridge details were visualized without any background interference when using a simple and quick powder dusting method. Results revealed that, the present fluorescent dye can be used successfully for detection of latent fingerprints (LFPs) on various nonporous substrates surfaces, in organic light-emitting diodes applications (OLEDs), and for electrochemical sensing.
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Affiliation(s)
- Naveen Kumar
- Department of Studies and Research in Chemistry, Kuvempu University, P.G. Centre, Kadur, India
| | - Udayabhanu
- Energy Materials Research Laboratory, Department of Chemistry, Siddaganga Institute of Technology, Tumakuru, India
| | - Abdulaziz Ali Alghamdi
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - R B Basavaraj
- Department of Physics, BMS Institute of Technology and Management, Bangalore, India
| | - K M Mahadevan
- Department of Studies and Research in Chemistry, Kuvempu University, P.G. Centre, Kadur, India
| | - G Nagaraju
- Energy Materials Research Laboratory, Department of Chemistry, Siddaganga Institute of Technology, Tumakuru, India
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