1
|
Hussein BRM, El-Saghier SMM, Allam RM, Mohamed MFA, Amer AA. An efficient methodological approach for synthesis of selenopyridines: generation, reactions, anticancer activity, EGFR inhibitory activity and molecular docking studies. Mol Divers 2024:10.1007/s11030-024-10872-2. [PMID: 38739230 DOI: 10.1007/s11030-024-10872-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 04/09/2024] [Indexed: 05/14/2024]
Abstract
In the present work, we successfully synthesized Se-alkyl selenopyridines 1 and 3, selenopheno[2,3-b]pyridine 2, and bis-selenopyridine 4 derivatives using an eco-friendly method by utilizing NaHSe instead of toxic hydrogen selenide. The effect of the temperature on the reaction was screening at various temperatures. The regiospecific reaction of selenopyridine 1 with bromine afforded an unexpected product 4,6-diamino-5-bromo-2-[(cyanomethyl)selenyl]-pyridine-3-carbonitrile (5), which was cyclized to selenopheno[2,3-b]pyridine (7) by refluxing in the presence of TEA. While its treatment with thiophenol and/or p-chlorothiophenol gave 8a, b. On the other hand, its reaction with aminothiophenol afforded 2-(benzo[d]-thiazol-2-yl)-5-bromoselenopheno[2,3-b]pyridine-3,4,6-triamine (9). Also, N-(2-cyano-4-methyl-5H-1-seleno-3,5,8-triazaacenaphthylen-7-yl)acetamide (11) and a novel series of selenoazo dyes 12a-d were synthesized by treatment of selenopheno[2,3-b]pyridine 2 with acetic anhydride and/or diazonium chlorides of aromatic amines, respectively. Then, we ascertained the potential activity of synthesized compounds against highly metastatic prostate cancer cells (PC-3) and osteosarcoma cells (MG-63) and found that 12a, 12b, 12c, and 12d were more cytotoxic than doxorubicin in both tested cell lines, showing nearly the same anticancer activity with IC50 values ranging from 2.59 ± 0.02 µM to 3.93 ± 0.23 µM. Mechanistically, the most potent compounds 12a and 12b proved to be potent EGFR inhibitors with IC50 values of 0.301 and 0.123 µM, respectively, compared to lapatinib as a positive reference (IC50 = 0.049 µM). Moreover, the docking results are in good agreement with the anticancer activity as well as the EGFR inhibitory activity, suggesting these two compounds as promising EGFR anticancer candidates.
Collapse
Affiliation(s)
- Bahgat R M Hussein
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt.
| | - Sham M M El-Saghier
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Rasha M Allam
- Pharmacology Department, National Research Centre, Giza, 11865, Egypt
| | - Mamdouh F A Mohamed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, 82524, Egypt
| | - Amer A Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt.
| |
Collapse
|
2
|
Abd El-Lateef HM, Khalaf MM, Gouda M, Gad MA, Abdelhamid AA, Ismail AF, Amer AA, Drar AM. Synthesis and Insecticidal Evaluation of 3,5-Dicyanopyridines Against Cotton Aphids via Microwave-Assisted Multicomponent Reactions. Chem Biodivers 2024; 21:e202400218. [PMID: 38381590 DOI: 10.1002/cbdv.202400218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/21/2024] [Accepted: 02/21/2024] [Indexed: 02/23/2024]
Abstract
Certain 2-amino-6-alkoxy-4-arylpyridine-3,5-dicyanide 1a-e were prepared via a straightforward process using microwave technology rather than conventional methods. This involved reaction of arylidenemalononitrile thru propanedinitrile in the occurrence of sodium alkoxide under MW. While, their positional isomer 4-amino-6-alkoxy-2-arylpyridine-3,5-dicyanide 3a-j have been separated from the reaction of aryl aldehydes with 2-aminoprop-1-ene-1,1,3-tricarbonitrile 2 in the presence of sodium alkoxide using microwave technic. Furthermore, the insecticidal properties of all synthesized compounds were observed with respect to Cotton aphid nymphs and adults. Neonicotinoid pesticides are indicated as the most effective pesticides toward aphids and many other pests. Many insecticides are discovered as novelties. As a result, several pyridine compounds were chemical method synthesized to serve as equivalents of neonicotinoids, a broad class of insecticides. With LC50 value of 0.03 mg/L, components 3g exhibit the highest insecticidal bioactivity. This work discusses how to find new chemicals that could be used as insecticidal agents in the future.
Collapse
Affiliation(s)
- Hany M Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mai M Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agriculture Research Center, Giza, 12619, Egypt
| | - Antar A Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
- Chemistry Department, Faculty of Science, Al-Baha University, Al-Baha, 1988, Saudi Arabia
| | - Abdelrahim Fathy Ismail
- The Scientific Journal of King Faisal University, King Faisal University, Al Ahsa, Saudi Arabia
- Department of Curriculum and Instruction, Faculty of Education, Assiut University, Assiut, Egypt
| | - Amer A Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Ali M Drar
- Research Institute of Plant Protection, Agriculture Research Center, Giza, 12619, Egypt
| |
Collapse
|
3
|
Khalaf MM, Abd El-Lateef HM, Gouda M, Abdelhamid AA, Amer AA, Abdou A. Designing, Characterization, DFT, Biological Effectiveness, and Molecular Docking Analysis of Novel Fe(III), Co(II), and Cu(II) Complexes Based on 4-Hydroxy-2 H-pyrano[3,2- c]quinoline-2,5(6 H)-dione. ACS Omega 2024; 9:6466-6481. [PMID: 38371789 PMCID: PMC10870415 DOI: 10.1021/acsomega.3c06274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/11/2024] [Accepted: 01/18/2024] [Indexed: 02/20/2024]
Abstract
The main target of the current framework is the designing and synthesizing of novel iron(III), cobalt(II), and cupper(II) complex compounds emanating from bioactive nucleus, 4-hydroxy-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione ligand, to enhance comprehension as potential antibacterial, antifungal, and antioxidant alternatives by means of using DFT calculations and molecular docking investigation. Thus, the new complexes had been synthesized and characterized using various analytical techniques, including elemental analysis, infrared spectroscopy, mass spectrometry, UV spectroscopy, conductivity, and magnetic testing, as well as thermal analysis. The 4-hydroxy-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione ligand exhibits monobasic bidentate OO donor properties toward the metal core, as shown by its infrared spectroscopic characteristics. The use of thermal analysis techniques allows for the identification and characterization of water molecules present inside the complexes, as well as the determination of their distribution patterns. The molecular structures of free ligand and its metal complex compounds have been verified through the use of density functional theory (DFT) simulations. These simulations also provide a valuable understanding of the quantum chemical characteristics associated with these structures. In vitro experiments were conducted to evaluate the antioxidant, antibacterial, as well as antifungal and the properties of the free ligand and its corresponding complex compounds. DATA revealed that synthesized metal complex compounds have heightened biological efficacy as related to the unbound ligand. Furthermore, molecular docking analysis was done to understand the interactions between the studied compounds and proteins derived from Escherichia coli (pdb ID: 2vf5), Aspergillus flavus (pdb ID: 3cku), and humans (pdb ID: 5IJT), which are considered to be significant in drug design. Lastly, a correlation between in vitro efficacies with molecular docking data was done and analyzed.
Collapse
Affiliation(s)
- Mai M. Khalaf
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Hany M. Abd El-Lateef
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Mohamed Gouda
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
| | - Antar A. Abdelhamid
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
- Department
of Chemistry, Faculty of Science, Al-Baha
University, Al-Baha 65635, Saudi Arabia
| | - Amer A. Amer
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Aly Abdou
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| |
Collapse
|
4
|
Mabied AF, Moustafa AH, Abdelhamid AA, Tiama TM, Amer AA. Synthesis, X-ray crystallography and antimicrobial activity of 2-cyanoguanidinophenytoin. Sci Rep 2023; 13:19510. [PMID: 37945617 PMCID: PMC10636160 DOI: 10.1038/s41598-023-45533-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023] Open
Abstract
The optimized synthesis of [5-oxo-4,4-diphenylimidazolidin-2-ylidene]cyanamide, which is known as 2-cyanoguanidinophenytoin (CNG-DPH) (3), and (imidazo[4,5-d]imidazole-2,5-diylidine)dicyanamide (4) has been reported in the present work. Furthermore, new Mannich bases derived from CNG-DPH were synthesized via its reaction with formaldehyde and using the corresponding amines, piperidine (base 5), and morpholine (base 6). Also, the antimicrobial activity and X-ray crystal structures for CNG-DPH and their Mannich bases were studied. The bases 3 and 6 crystallized in a monoclinic system; the crystal structure of 3 containing four molecules in the unit cell with a P21/c space group. The unit cell of 6 has eight molecules with a C2/c space group. The inter and intra hydrogen bond contacts packed and stabilized both of the structures. The morpholine ring of base 6 demonstrated a distinctive chair configuration. Mannich bases 5 and 6 showed promising antimicrobial effects. base 4 has a greater percentage for in vitro cytotoxicity (IC50) against normal cells, whereas 3 has the lowest ratio.
Collapse
Affiliation(s)
- Ahmed F Mabied
- X-Ray Crystallography Lab., Solid State Physics Department, National Research Centre, Dokki, 12622, Giza, Egypt.
| | - Amr H Moustafa
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt.
- Faculty of Science, King Salman International University, Ras Sudr, Sinai, 46612, Egypt.
| | - Antar A Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Taha M Tiama
- Department of Basic Sciences, October High Institute of Engineering & Technology - OHI, 6th of October City, Giza, Egypt
| | - Amer A Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| |
Collapse
|
5
|
Abd El-Lateef HM, Khalaf MM, Gouda M, Kandeel M, Amer AA, Abdelhamid AA, Drar AM, Gad MA. Functionalized Pyridines: Synthesis and Toxicity Evaluation of Potential Insecticidal Agents against Aphis craccivora. ACS Omega 2023; 8:29685-29692. [PMID: 37599961 PMCID: PMC10433465 DOI: 10.1021/acsomega.3c03831] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/21/2023] [Indexed: 08/22/2023]
Abstract
Using ultrasound technology instead of traditional methods, some pyridine derivatives were prepared by a simple procedure via a four-component reaction of different aromatic aldehydes, acetyl aryl, sodium alkoxide, and malononitrile, and additionally, all prepared compounds were monitored for insecticidal activities toward nymphs and adults of cowpea aphid. Though a lot of insecticides are discovered as a novelty on the other hand, neonicotinoid compounds are reflected as the most affected insecticides against aphids and many other pests. Thus, some of the pyridine derivatives were chemically prepared as analogues to a large group of insecticides called neonicotinoids. Under laboratory conditions, the toxicity of these components was measured toward adults and nymphs of Aphis craccivora. With respect to the LC50 values, components 1f, 1d, and 1c have the utmost insecticidal bioactivity, with values of 0.080, 0.098, and 0.127 mg/L. This work covers the way to discover novel compounds for the prospective use as insecticidal representatives.
Collapse
Affiliation(s)
- Hany M. Abd El-Lateef
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Mai M. Khalaf
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Mohamed Gouda
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
| | - Mahmoud Kandeel
- Department
of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department
of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Amer A. Amer
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Antar A. Abdelhamid
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
- Chemistry
Department, Faculty of Science, Albaha University, Albaha 1988, Saudi Arabia
| | - Ali M. Drar
- Research
Institute of Plant Protection, Agriculture
Research Center, Giza 12112, Egypt
| | - Mohamed A. Gad
- Research
Institute of Plant Protection, Agriculture
Research Center, Giza 12112, Egypt
| |
Collapse
|
6
|
Abd-Elshafi AA, Amer AA, El-Shater A, Newair EF, Elrouby M. Organo-modified Montmorillonite-based adsorbents for selective removal of Iron(II) from aqueous solutions. J Mol Liq 2023; 383:122092. [DOI: 10.1016/j.molliq.2023.122092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|
7
|
Abd El-Lateef HM, Khalaf MM, Amer AA, Kandeel M, Abdelhamid AA, Abdou A. Synthesis, Characterization, Antimicrobial, Density Functional Theory, and Molecular Docking Studies of Novel Mn(II), Fe(III), and Cr(III) Complexes Incorporating 4-(2-Hydroxyphenyl azo)-1-naphthol (Az). ACS Omega 2023; 8:25877-25891. [PMID: 37521661 PMCID: PMC10373178 DOI: 10.1021/acsomega.3c01413] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/03/2023] [Indexed: 08/01/2023]
Abstract
This work synthesized three new CrAz2, MnAz2, and FeAz2 complexes and investigated them using IR, mass, UV spectroscopy, elemental analysis, conductivity and magnetic tests, and thermogravimetric analysis. The azo-ligand, 4-(2-hydroxyphenylAzo)-1-naphthol (Az), couples with metal ions via its nitrogen (in -N=N- bonds) and oxygen (in hydroxyl group) atoms, according to the IR spectra of these complexes. Through thermal examination (TG/TGA), the number and location of water in the complexes were also determined. Density functional theory (DFT) theory is applied to ameliorate the structures of the ligand (Az) and metal complexes and analyze the quantum chemical characteristics of these complexes. The antifungal and antibacterial activity of the ligand and its complexes opposed to several hazardous bacteria and fungi was investigated in vitro. Metal complexes were discovered to have a higher inhibitory impact on some organisms than the free ligand. The MnAz2 complex exhibited the best activity among the studied materials, whereas the CrAz2 complex had the lowest. The compounds' binding affinity to the E. coli (PDB ID: 1hnj) structure was predicted using molecular docking. Binding energies were calculated by analyzing protein-substrate interactions. These encouraging findings imply that these chemicals may have physiological effects and may be valuable for a variety of medical uses in the future.
Collapse
Affiliation(s)
- Hany M. Abd El-Lateef
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Mai M. Khalaf
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Amer A. Amer
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Mahmoud Kandeel
- Department
of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, 31982 Al-Ahsa, Saudi Arabia
- Department
of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt
| | - Antar A. Abdelhamid
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
- Chemistry
Department, Faculty of Science, Albaha University, Albaha 1988, Saudi Arabia
| | - Aly Abdou
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| |
Collapse
|
8
|
Abd El-Lateef HM, Khalaf MM, Kandeel M, Amer AA, Abdelhamid AA, Abdou A. Designing, characterization, biological, DFT, and molecular docking analysis for new FeAZD, NiAZD, and CuAZD complexes incorporating 1-(2-hydroxyphenylazo)- 2-naphthol (H 2AZD). Comput Biol Chem 2023; 105:107908. [PMID: 37352589 DOI: 10.1016/j.compbiolchem.2023.107908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 06/25/2023]
Abstract
Herien, three new Fe(III) (FeAZD), Ni(II) (NiAZD), and Cu(II) (CuAZD) complexes were synthesized and characterized using various physicochemical and spectroscopic approaches. The H2AZD ligand acted as a bi-basic bi-dentate NO ligand in a 1:1 molar ratio. The results revealed that the FeAZD and CuAZD complexes had octahedral geometry, while the NiAZD had a tetrahedral geometry. The optimized geometry, HOMO and LUMO analysis of the ligand and its metal complexes was determined via Density functional theory (DFT) using the B3LYP with 6-311 G(d,p), and LanL2DZ level of theory. The FeAZD, NiAZD and CuAZD had lower energy gap, 7.40, 7.93 and 7.06 eV, respectively, than the free ligand (9.58 eV), which proposed that CuAZD was more active one. The free ligand and its metal complexes were in vitro investigated for their antibacterial and antifungal activity. The results illustrated that the metal complexes had higher antibacterial and antifungal activity than the free ligand. More specifically, the CuAZD demonstrated good antibacterial activity against E. coli, P. aeruginosa, S. aureus, B. cereus, and A. flavus, T. rubrum, and C. albicans, with activity indexes of 72.22%, 65.01%, 77.78%, and 72.22%, 63.16%, 59.09%, and 61.90%, respectively. Also, the metal complexes showed lower MIC (6.25-3.125 ppm) compared to the free ligand (about 50 ppm). Finally, molecular docking was utilized to investigate the ability of the free ligand and its metal complexes to inhibit the growth of E. coli (PDB ID: 5iq9). The results showed that the CuAZD had the highest binding affinity to the receptor, with a more negative docking score of - 7.05 Kcal/mol, and lower inhibition constant (Ki) of 6.90 µM. That is indicating that it may be the most effective at inhibiting the growth of E. coli (PDB ID: 5iq9).
Collapse
Affiliation(s)
- Hany M Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt.
| | - Mai M Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, 31982 Al-Ahsa, Saudi Arabia; Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt
| | - Amer A Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Antar A Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt; Chemistey Department, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia
| | - Aly Abdou
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt.
| |
Collapse
|
9
|
Aly KI, Amer AA, Mahross MH, Belal MR, Soliman AM, Mohamed MG. Construction of novel polybenzoxazine coating precursor exhibiting excellent anti-corrosion performance through monomer design. Heliyon 2023; 9:e15976. [PMID: 37215883 PMCID: PMC10192533 DOI: 10.1016/j.heliyon.2023.e15976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/24/2023] Open
Abstract
In this study, we utilized salicylaldehyde (SA) and p-toluidine (Tol-NH2) to synthesize 2-(Z)[(4-methylphenyl)imino]methylphenol (SA-Tol-SF), which was then reduced to 2-[(4-methylphenyl)amino]methylphenol, producing SA-Tol-NH. SA-Tol-NH was further reacted with formaldehyde to create SA-Tol-BZ monomer. Poly(SA-Tol-BZ) was produced by thermally curing it at 210 °C, after synthesizing it from SA-Tol-BZ. The chemical structure of SA-Tol-BZ was analyzed using various analytical techniques such as FT-IR, 1H NMR spectroscopy, and 13C NMR spectroscopy TGA, SEM, DSC, and X-ray analyses. Afterward, we applied the obtained poly(SA-Tol-BZ) onto mild steel (MS) using thermal curing and spray coating techniques. To examine the anticorrosion attributes of MS coated with poly(SA-Tol-BZ), electrochemical characterization was employed. The study proved that poly(SA-Tol-BZ) coating had a high level of effectiveness in preventing corrosion on MS, with an efficacy of 96.52%, and also exhibited hydrophobic properties.
Collapse
Affiliation(s)
- Kamal I. Aly
- Polymer Research Laboratory, Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Amer A. Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Mahmoud H. Mahross
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Mostafa R. Belal
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Ahmed M.M. Soliman
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Mohamed Gamal Mohamed
- Polymer Research Laboratory, Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| |
Collapse
|
10
|
Soliman AMM, Aly KI, Mohamed MG, Amer AA, Belal MR, Abdel-Hakim M. Synthesis, characterization and protective efficiency of novel polybenzoxazine precursor as an anticorrosive coating for mild steel. Sci Rep 2023; 13:5581. [PMID: 37019919 PMCID: PMC10076265 DOI: 10.1038/s41598-023-30364-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 02/21/2023] [Indexed: 04/07/2023] Open
Abstract
In this study, 2-[(E)-(hexylimino)methyl] phenol (SA-Hex-SF) was synthesized by adding salicylaldehyde (SA) and n-hexylamine (Hex-NH2), which was subsequently reduced by sodium borohydride to produce 2-[(hexylamino)methyl] phenol (SA-Hex-NH). Finally, the SA-Hex-NH reacted with formaldehyde to give a benzoxazine monomer (SA-Hex-BZ). Then, the monomer was thermally polymerized at 210 °C to produce the poly(SA-Hex-BZ). The chemical composition of SA-Hex-BZ was examined using FT-IR, 1H, and 13C NMR spectroscopy. Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and X-ray Diffraction (XRD), respectively, were used to examine the thermal behavior, surface morphology, and crystallinity of the SA-Hex-BZ and its PBZ polymer. Mild steel (MS) was coated by poly(SA-Hex-BZ) which was quickly prepared using spray coating and thermal curing techniques (MS). Finally, the electrochemical tests were used to evaluate the poly(SA-Hex-BZ)-coating on MS as anti-corrosion capabilities. According to this study, the poly(SA-Hex-BZ) coating was hydrophobic, and corrosion efficiency reached 91.7%.
Collapse
Affiliation(s)
- Ahmed M M Soliman
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Kamal I Aly
- Polymer Research Laboratory, Chemistry Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
| | - Mohamed Gamal Mohamed
- Polymer Research Laboratory, Chemistry Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung, Taiwan.
| | - Amer A Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mostafa R Belal
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mohamed Abdel-Hakim
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt
| |
Collapse
|
11
|
Alghuwainem YAA, El-Lateef HMA, Khalaf MM, Amer AA, Abdelhamid AA, Alzharani AA, Alfarsi A, Shaaban S, Gouda M, Abdou A. Synthesis, DFT, Biological and Molecular Docking Analysis of Novel Manganese(II), Iron(III), Cobalt(II), Nickel(II), and Copper(II) Chelate Complexes Ligated by 1-(4-Nitrophenylazo)-2-naphthol. Int J Mol Sci 2022; 23:ijms232415614. [PMID: 36555272 PMCID: PMC9779307 DOI: 10.3390/ijms232415614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/18/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
Novelmanganese(II), iron(III), cobalt(II), nickel(II), and copper(II) chelates were synthesized and studied using elemental analysis (EA), infrared spectroscopy, mass spectrometry, ultraviolet-visible spectroscopy, and conductivity, as well as magnetic measurements and thermogravimetric analysis (TG). The azo-ligand 1-[(4-nitrophenyl)diazenyl]-2-naphthol (HL) chelates to the metal ions via the nitrogen and oxygen centers of the azo group and the hydroxyl, respectively. The amounts of H2O present and its precise position were identified by thermal analysis. Density functional theory (DFT) was employed to theoretically elucidate the molecular structures of the ligand and the metal complexes. Furthermore, the quantum chemical parameters were also evaluated. The antimicrobial properties were evaluated against a group of fungal and bacterial microbes. Interestingly, the bioactivity of the complexes is enhanced compared to free ligands. Within this context, the CuL complex manifested the lowest activity, whereas the FeL complex had the greatest. Molecular docking was used to foretell the drugs' binding affinity for the structure of Escherichia coli (PDB ID: 1hnj). Protein-substrate interactions were resolved, and binding energies were accordingly calculated.
Collapse
Affiliation(s)
- Yousef A. A. Alghuwainem
- Department of Veterinary Public Health and Care, College of Veterinary Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Hany M. Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Correspondence: or (H.M.A.E.-L.); or (S.S.)
| | - Mai M. Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Amer A. Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Antar A. Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Department of Chemistry, Faculty of Science, Albaha University, Albaha 65528, Saudi Arabia
| | - Ahmed A. Alzharani
- Department of Chemistry, Faculty of Science, Albaha University, Albaha 65528, Saudi Arabia
| | - Anas Alfarsi
- Department of Chemistry, Faculty of Science, Albaha University, Albaha 65528, Saudi Arabia
| | - Saad Shaaban
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
- Correspondence: or (H.M.A.E.-L.); or (S.S.)
| | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Aly Abdou
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| |
Collapse
|
12
|
Amer AA, Abdelhamid AA, Elnakeeb AS, Salah HA. One‐pot multicomponent Designing of novel 2‐imino‐4‐arylidene‐1,3‐thiazolidin‐4‐one. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Amer A. Amer
- Chemistry Department, Faculty of Science Sohag University Sohag Egypt
| | - Antar A. Abdelhamid
- Chemistry Department, Faculty of Science Sohag University Sohag Egypt
- Chemistey Department, Faculty of Science Albaha University Albaha Saudi Arabia
| | | | - Hanan A. Salah
- Chemistry Department, Faculty of Science Sohag University Sohag Egypt
| |
Collapse
|
13
|
Abdul-Manan AFN, Gordillo Zavaleta V, Agarwal AK, Kalghatgi G, Amer AA. Electrifying passenger road transport in India requires near-term electricity grid decarbonisation. Nat Commun 2022; 13:2095. [PMID: 35440110 PMCID: PMC9018792 DOI: 10.1038/s41467-022-29620-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 03/02/2022] [Indexed: 11/20/2022] Open
Abstract
Battery-electric vehicles (BEV) have emerged as a favoured technology solution to mitigate transport greenhouse gas (GHG) emissions in many non-Annex 1 countries, including India. GHG mitigation potentials of electric 4-wheelers in India depend critically on when and where they are charged: 40% reduction in the north-eastern states and more than 15% increase in the eastern/western regions today, with higher overall GHGs emitted when charged overnight and in the summer. Self-charging gasoline-electric hybrids can lead to 33% GHG reductions, though they haven’t been fully considered a mitigation option in India. Electric 2-wheelers can already enable a 20% reduction in GHG emissions given their small battery size and superior efficiency. India’s electrification plan demands up to 125GWh of annual battery capacities by 2030, nearly 10% of projected worldwide productions. India requires a phased electrification with a near-term focus on 2-wheelers and a clear trajectory to phase-out coal-power for an organised mobility transition. India’s plans to electrify transport is complicated by its reliance on coal-power. Here the authors call for diverse policy and technology solutions, including a focus on cleaner grids, electric 2-wheelers, and hybrid 4-wheelers in the near-term.
Collapse
Affiliation(s)
- Amir F N Abdul-Manan
- Strategic Transport Analysis Team, Beijing Research Center, Aramco Asia, Beijing, China. .,Transport Technologies R&D Division, Saudi Aramco Research & Development Center (R&DC), Dhahran, Saudi Arabia.
| | | | - Avinash Kumar Agarwal
- Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Gautam Kalghatgi
- Consultant Professor, Shanghai Jiao Tong University, Shanghai, China
| | - Amer A Amer
- Transport Technologies R&D Division, Saudi Aramco Research & Development Center (R&DC), Dhahran, Saudi Arabia
| |
Collapse
|
14
|
Abdelhamid AA, Mohamed SK, Amer AA. Synthesis of some new indeno[1′,2′:3,4]fluoreno[1,2-d]oxonine-5,11,16,21-tetraones and oxocyclohex-1-en-1-yl-hydro-1H-xanthen-1-ones. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1683205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Shaaban K. Mohamed
- Chemistry and Environmental Division, Manchester Metropolitan University, Manchester, England
- Chemistry Department, Faculty of Science, Minia University, El-Minia, Egypt
| | - Amer A. Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, Egypt
| |
Collapse
|
15
|
Affiliation(s)
- Amer A. Amer
- Chemistry Department, Faculty of Science; Sohag University; Sohag 82524 Egypt
| | - Antar A. Abdelhamid
- Chemistry Department, Faculty of Science; Sohag University; Sohag 82524 Egypt
| |
Collapse
|
16
|
Mourad AFE, Amer AA, El-Shaieb KM, Ali AM, Aly AA. 4-Hydroxy-1-phenylquinolin-2(1H)-one in One-pot Synthesis of Pyrimidoquinolines and Related Compounds under Microwave Irradiation and Conventional Conditions. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2286] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Amer A. Amer
- Department of Chemistry, Faculty of Science; Sohag University; Sohag Egypt
| | - Kamal M. El-Shaieb
- Department of Chemistry, Faculty of Science; Minia University; El-Minia Egypt
| | - Ali M. Ali
- Department of Chemistry, Faculty of Science; Sohag University; Sohag Egypt
| | - Ashraf A. Aly
- Department of Chemistry, Faculty of Science; Minia University; El-Minia Egypt
| |
Collapse
|
17
|
Khlebnikov AF, Novikov MS, Amer AA. Reactions of 2H-azirines with carbenoids from diazo esters: transformations of novel azirinium ylides. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.06.038] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
18
|
|
19
|
Amer AA, el-Mougi M, Hughes J, el-Tayyeb S, el-Abhar A, el-Shafie A. Comparison of latex agglutination test with an ELISA to diagnose rotavirus-associated diarrhoea in infants and young children. J Diarrhoeal Dis Res 1990; 8:87-9. [PMID: 2243180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An agglutination (LA) test, using latex beads sensitised with anti-rotavirus immunoglobulin G, was evaluated to detect human rotavirus in 200 stool specimens by comparing its results with those of an ELISA (Rotazyme, Abbott Laboratory, Diagnostic Div., North Chicago, IL). The specimens were collected from a systematic sample of 200 infants and pre-school children attending the Diarrhoeal Disease Research and Rehydration Centre at the Bab-El-Sha'reya University Hospital, Egypt. Of the 200 stool specimens tested, 79 were positive by the ELISA and 68 were positive by the LA test. Taking the ELISA as the standard, the LA test showed 11 false-negative and six false-positives giving a sensitivity and specificity of 86% and 95% respectively. Using 48 stool specimens positive for rotavirus by both the tests, the degree of positivity of the LA test roughly showed a linear relationship with the degree of rotazyme optical density. Thus, the simple and inexpensive LA test may be useful as a screening procedure to detect rotaviruses in the stools of children with diarrhoea.
Collapse
Affiliation(s)
- A A Amer
- Diarrhoeal Disease Research and Rehydration Centre, Bab-El-Sha'reya University Hospital, Alazhar Medical School, Cairo, Egypt
| | | | | | | | | | | |
Collapse
|
20
|
Abdel Hakim NF, Hilali EA, Amer AA, Younis TM. Effect of some antibiotics as growth promoters on performance of broiler chicks fed different protein levels. Arch Tierernahr 1989; 39:97-104. [PMID: 2500112 DOI: 10.1080/17450398909432952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This work was carried out to study the effect of different sources of dietary antibiotics (Zinc bacitracin, Flavomycin, Virginiamycin) in rations with optimal protein levels (starter phase: 23.5%, finisher phase: 20.0%) and low protein levels (starter phase: 19.6%, finisher phase: 17.0%) on broiler performance with 8 groups of 75 broiler each. The supplement of diets, containing the optimal and low protein level, with antibiotics increased the body weight after 7 weeks of age and improved the feed conversion as compared with control groups. Virginiamycin was superior in increasing body weights after 7 weeks of age and in improving the feed conversion with rations containing low protein level when compared with zinc bacitracin and Flavomycin. When broiler rations, low in the protein content, were supplemented with antibiotics, they could not substitute the difference in optimal protein level. Antibiotics supplementation increased the value of improvement in production efficiency and this was more pronounced with Virginiamycin.
Collapse
Affiliation(s)
- N F Abdel Hakim
- Al-Azhar-University Cairo, Faculty of Agriculture, Department of Animal Production
| | | | | | | |
Collapse
|