Magdy A. Ibrahim
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View article: Exploring the Structural, Optical, and electrochemical behavior of semicarbazone pyranoquinoline ligand (PQMHC) and its Cu(II) complex for efficient hydrogen peroxide sensing
Exploring the Structural, Optical, and electrochemical behavior of semicarbazone pyranoquinoline ligand (PQMHC) and its Cu(II) complex for efficient hydrogen peroxide sensing Open
The structural, morphological, and optical features of a newly synthesized PQMHC ligand and its Cu(II)-coordinated complex were thoroughly investigated using powder X-ray diffraction (XRD), field emission scanning electron microscopy (FE-S…
View article: Design, biological evaluation, solvatochromic, DFT, and molecular docking studies of new metal complexes derived from a semicarbazone ligand
Design, biological evaluation, solvatochromic, DFT, and molecular docking studies of new metal complexes derived from a semicarbazone ligand Open
The current study describes the synthesis and characterization of novel Ni(II), Co(II), and Fe(III) complexes of the semicarbazone ligand (ACMHCA). Spectroscopic, conductance, elemental, and magnetic studies confirmed octahedral geometries…
View article: Structural and spectroscopic study of 5-cyanomethyl chromeno[4, 3-b]pyridine-3-carbonitrile (CCPC) using DFT and Thermodynamic: Computational and experimental analysis
Structural and spectroscopic study of 5-cyanomethyl chromeno[4, 3-b]pyridine-3-carbonitrile (CCPC) using DFT and Thermodynamic: Computational and experimental analysis Open
The reaction of 3-(6,8-dimethylchromonyl)acrylonitrile (1) with cyanoacetamide (2) under basic conditions afforded a novel heterocyclic system: 5-cyanomethylchromeno[4,3-b]pyridine-3-carbonitrile (CCPC, 3). The transformation proceeds via …
View article: Synthetic approaches for novel 3-heteroaryl-4-hydroxy-1-methylquinoline-2(1<i>H</i>)one: spectroscopic characterization, molecular docking and DFT investigations
Synthetic approaches for novel 3-heteroaryl-4-hydroxy-1-methylquinoline-2(1<i>H</i>)one: spectroscopic characterization, molecular docking and DFT investigations Open
Ring opening and recyclization reactions with 4-hydroxy-6-methyl-3-nitro-2 H -pyrano[3,2- c ]quinoline-2,5(6 H )-dione (1) was examined towards some carbon nucleophilic reagents.
View article: New Metal Complexes Incorporating Schiff Base Ligand Based on Pyridine Moiety: Synthesis, Spectral Characterization, DFT, Biological Evaluation, and Molecular Docking
New Metal Complexes Incorporating Schiff Base Ligand Based on Pyridine Moiety: Synthesis, Spectral Characterization, DFT, Biological Evaluation, and Molecular Docking Open
A new Schiff base ligand, HNMPC , was prepared and reacted with some metal ions, including Cu(II), Ni(II), Co(II), Mn(II), and VO(IV). The infrared, electronic, mass, electron spin resonance, nuclear magnetic resonance, thermal and element…
View article: Synthesis, spectral analysis, and DFT studies of the novel pyrano[3,2-c] quinoline-based 1,3,4-thiadiazole for enhanced solar cell performance
Synthesis, spectral analysis, and DFT studies of the novel pyrano[3,2-c] quinoline-based 1,3,4-thiadiazole for enhanced solar cell performance Open
In this study, we synthesized a novel compound, 3-(5-amino-1,3,4-thiadiazol-2-yl)-6-ethyl-4-hydroxy-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione (ATEHPQ), through a condensation reaction between 6-ethyl-4-hydroxy-2,5…
View article: Linear and Angular Heteroannulated Pyridines Tethered 6-Hydroxy-4,7-Dimethoxybenzofuran: Synthesis and Antimicrobial Activity
Linear and Angular Heteroannulated Pyridines Tethered 6-Hydroxy-4,7-Dimethoxybenzofuran: Synthesis and Antimicrobial Activity Open
2-Chloropyridine-3-carbonitrile derivative 1 was utilized as a key precursor to build a series of linear and angular annulated pyridines linked to a 6-hydroxy-4,7-dimethoxybenzofuran moiety. Reaction of substrate 1 with various hydrazines …
View article: Synthesis, Characterization and Antimicrobial and Anticancer Evaluations of Some Novel Heteroannulated Difuro[3,2-c:3′,2′-g]Chromenes
Synthesis, Characterization and Antimicrobial and Anticancer Evaluations of Some Novel Heteroannulated Difuro[3,2-c:3′,2′-g]Chromenes Open
The goal of this study was directed to synthesize a novel class of annulated compounds containing difuro[3,2-c:3′,2′-g]chromene. Friedländer condensation of o-aminoacetyl derivative 3 was performed with some active methylene ketones, namel…
View article: Enhanced structural and optical performance of the novel 3-[(5-amino-1-phenyl-1H-pyrazol-4-yl)carbonyl]-1-ethyl-4-hydroxyquinolin-2(1H)-one heterojunction: experimental and DFT modeling
Enhanced structural and optical performance of the novel 3-[(5-amino-1-phenyl-1H-pyrazol-4-yl)carbonyl]-1-ethyl-4-hydroxyquinolin-2(1H)-one heterojunction: experimental and DFT modeling Open
This study successfully and cost-effectively synthesized a novel compound, 3-[(5-amino-1-phenyl-1 H -pyrazol-4-yl)carbonyl]-1-ethyl-4-hydroxyquinolin-2(1 H )-one ( APPQ , 4 ), which displayed significant potential for various applications …
View article: Nucleophilic Reactions with the Novel 7-(Chromon-3-Yl)- Quinolino[3',4':5,6]Pyrano[3,2-C]Quinoline and Computational (Dft, Homo–Lumo, Mep, Fukui Function, Nlo) Studies
Nucleophilic Reactions with the Novel 7-(Chromon-3-Yl)- Quinolino[3',4':5,6]Pyrano[3,2-C]Quinoline and Computational (Dft, Homo–Lumo, Mep, Fukui Function, Nlo) Studies Open
View article: Recent Trends in the Synthesis of Enaminones
Recent Trends in the Synthesis of Enaminones Open
View article: TD-DFT calculations, dipole moments, and solvatochromic properties of 2-aminochromone-3-carboxaldehyde and its hydrazone derivatives
TD-DFT calculations, dipole moments, and solvatochromic properties of 2-aminochromone-3-carboxaldehyde and its hydrazone derivatives Open
2-Aminochromone-3-carboxaldehyde (ACC) and its hydrazones (ACMHCA and ACMNPHTCA) with semicarbazide hydrochloride and N -phenylthiosemicarbazide were synthesized and characterized by elemental analysis and spectral studies.
View article: Utility of 6-Aminouracils for Building Substituted and Heteroannulated Pyrimidines: A Comprehensive Review
Utility of 6-Aminouracils for Building Substituted and Heteroannulated Pyrimidines: A Comprehensive Review Open
View article: Synthesis and Characterization of Some Novel Heteroannulated Chromeno[4,3-b]quinolines
Synthesis and Characterization of Some Novel Heteroannulated Chromeno[4,3-b]quinolines Open
The recently synthesized 1-chloro-11-oxo-3,4-dihydro-11Hchromeno[4,3-b]quinoline-2-carboxaldehyde (1) was efficiently utilized as a key precursor to construct a diversity of polyfused systems containing chromeno[4,3b]quinoline. Reaction of…
View article: Synthesis, spectral analysis, quantum studies, NLO, and thermodynamic properties of the novel 5-(6-hydroxy-4-methoxy-1-benzofuran-5-ylcarbonyl)-6-amino-3-methyl-1<i>H</i>-pyrazolo[3,4-<i>b</i>] pyridine (HMBPP)
Synthesis, spectral analysis, quantum studies, NLO, and thermodynamic properties of the novel 5-(6-hydroxy-4-methoxy-1-benzofuran-5-ylcarbonyl)-6-amino-3-methyl-1<i>H</i>-pyrazolo[3,4-<i>b</i>] pyridine (HMBPP) Open
Ring opening followed by ring closure reactions of 4-methoxy-5-oxo-5 H -furo[3,2- g ] chromene-6-carbonitrile with 5-amino-3-methyl-1 H -pyrazole gave the novel 5-(6-hydroxy-4-methoxy-1-benzofuran-5-ylcarbonyl)-6-amino-3-methyl-1 H -pyrazo…
View article: Chemical Reactivity of 1H-Benzimidazol-2-ylacetonitrile and Dimedone toward Simple Condensates Derived from 3-Formylchromone
Chemical Reactivity of 1H-Benzimidazol-2-ylacetonitrile and Dimedone toward Simple Condensates Derived from 3-Formylchromone Open
The chemical reactivity of 1H-benzimidazol-2-ylacetonitrile and dimedone was investigated towards some simple condensates (1a-d and 2a-c) obtained from condensation reaction of 3-formylchromone with some active methylene compounds.Mainly, …
View article: Novel Heteroannulated Chromeno[2,3-b]pyridines and Related Compounds Using 6-Methylchromone-3-carbonitrile
Novel Heteroannulated Chromeno[2,3-b]pyridines and Related Compounds Using 6-Methylchromone-3-carbonitrile Open
6-Methylchromone-3-carbonitrile (1) was utilized as synthetic intermediate for construction of a diversity of annulated chromones.Heteroannulated chromeno[2,3-b]pyridines 2-8 were synthesized from reaction of carbonitrile 1 with some methy…
View article: Synthetic Approaches for Construction of Novel Angular Heterocyclic Systems Containing Chromeno[2,3-b]quinoline
Synthetic Approaches for Construction of Novel Angular Heterocyclic Systems Containing Chromeno[2,3-b]quinoline Open
Cyclic β-chloroenaldehyde 1 was used to create a novel series of angular heteroannulated chromones.Condensation of β-chloroenaldehyde 1 with hydrazine derivatives produced chromeno[2,3-b]pyrazolo[3,4-f]quinolines 2, 5 and 6.Also, condensat…
View article: Synthesis, structure investigation, DFT analysis, optical, and photoelectrical properties of 9-bromo-3-hydroxychromeno[4,3-b]pyrazolo[4,3-e]pyridin-5(1H)-one (BHCPP)
Synthesis, structure investigation, DFT analysis, optical, and photoelectrical properties of 9-bromo-3-hydroxychromeno[4,3-b]pyrazolo[4,3-e]pyridin-5(1H)-one (BHCPP) Open
View article: 4-Amino-3-formylcoumarin as Building Block for Construction of Novel Heteroannulated Coumarins: Synthesis, Characterization and Antimicrobial Evaluation
4-Amino-3-formylcoumarin as Building Block for Construction of Novel Heteroannulated Coumarins: Synthesis, Characterization and Antimicrobial Evaluation Open
View article: Synthetic Approaches for Heteroannulated Chromones Fused Various Heterocyclic Systems
Synthetic Approaches for Heteroannulated Chromones Fused Various Heterocyclic Systems Open
The main focus of this review summarized the different methods utilized for the synthesis of chromone annulated with different heterocyclic rings such as pyrroles, furans, pyrazole, imidazole, benzene, naphthalene, quinolone……and others.CO…
View article: Chemical Transformation of Chromones into Coumarins
Chemical Transformation of Chromones into Coumarins Open
View article: Transformations of the Emirati housing typologies. A survey on the trending urban condition and cultural clashes
Transformations of the Emirati housing typologies. A survey on the trending urban condition and cultural clashes Open
It was since the inception of a modernized Abu Dhabi in the late 60s that its housing has been evolving as well.Land allocation to Emirati nationals, the founding of a national housing program and the very new Master Plans for Abu Dhabi we…
View article: Synthetic Approaches for Construction of Novel 3-Heteroarylchromeno[2,3-b]pyridines and Annulated Chromenopyridopyrazolopyrimidines
Synthetic Approaches for Construction of Novel 3-Heteroarylchromeno[2,3-b]pyridines and Annulated Chromenopyridopyrazolopyrimidines Open
View article: Synthetic Approaches for Nitrogen Bridgehead Pyrido-[1,2-b][1,2,4]triazepines and Annulated Compounds Using 4-(8-Allylchromon-3-yl)-1,6-diamino-2-oxo-1,2-dihydropyridine-3,5-dicarbonitrile
Synthetic Approaches for Nitrogen Bridgehead Pyrido-[1,2-b][1,2,4]triazepines and Annulated Compounds Using 4-(8-Allylchromon-3-yl)-1,6-diamino-2-oxo-1,2-dihydropyridine-3,5-dicarbonitrile Open
Some new nitrogen bridgehead pyrido[1,2-b][1,2,4]triazepines linked 8-allylchromone moiety have been synthesized from reaction of novel 4-(8-allylchromon-3-yl)-1,6-diamino-2-oxo-1,2-dihydropyridine-3,5-dicarbonitrile (3) with a variety of …
View article: Synthesis, FT-IR, structural, thermochemical, electronic absorption spectral, and NLO analysis of the novel 10-methoxy-10<i>H</i>-furo[3,2-<i>g</i>]chromeno[2,3-<i>b</i>][1,3]thiazolo[5,4-<i>e</i>]pyridine-2,10(3<i>H</i>)-dione (MFCTP): a DFT/TD-DFT study
Synthesis, FT-IR, structural, thermochemical, electronic absorption spectral, and NLO analysis of the novel 10-methoxy-10<i>H</i>-furo[3,2-<i>g</i>]chromeno[2,3-<i>b</i>][1,3]thiazolo[5,4-<i>e</i>]pyridine-2,10(3<i>H</i>)-dione (MFCTP): a DFT/TD-DFT study Open
A novel MFCTP was synthesized and characterized.
View article: Construction and Biological Evaluations of Some Novel Chromeno[2,3-b]pyridines and Chromeno[2,3-b]quinolines Using 6-Methylchromone-3-carbonitrile
Construction and Biological Evaluations of Some Novel Chromeno[2,3-b]pyridines and Chromeno[2,3-b]quinolines Using 6-Methylchromone-3-carbonitrile Open
Reaction of 6-methylchromone-3-carbonitrile (1) with acetylacetone under basic conditions afforded 3-acetyl-2,7-dimethyl-5H-chromeno[2,3-b]pyridin-5-one (2) which utilized as a starting substrate.Condensation of compound 2 with a variety o…
View article: Reactivity of 4,9-Dimethoxy-5-oxo-5H-furo[3,2-g]chromene-6-carbonitrile towards Some Nitrogen Nucleophilic Reagents
Reactivity of 4,9-Dimethoxy-5-oxo-5H-furo[3,2-g]chromene-6-carbonitrile towards Some Nitrogen Nucleophilic Reagents Open
The chemical behavior of 4,9-dimethoxy-5-oxo-5H-furo[3,2-g]chromene-6-carbonitrile (khellin-6-carbonitrile) (1) was examined towards a variety of nitrogen nucleophiles.Some novel Schiff bases 5-7 were prepared from reaction of carbonitrile…
View article: Synthetic Approach for Building Heteroannulated Furo[3,2-g]chromenes Using 4,9-Dimethoxy-5-oxo-5H-furo[3,2-g]chromene-6-carbonitrile and Cyclic Carbon Nucleophiles
Synthetic Approach for Building Heteroannulated Furo[3,2-g]chromenes Using 4,9-Dimethoxy-5-oxo-5H-furo[3,2-g]chromene-6-carbonitrile and Cyclic Carbon Nucleophiles Open
A novel series of polyfused heterocyclic systems containing furo[3,2-g]chromenes were efficiently synthesized.The reactivity of 4,9-dimethoxy-5-oxo-5H-furo[3,2-g]chromene-6-carbonitrile (1) was studied towards a variety of carbon nucleophi…
View article: Reactivity of 6-Ethyl-4,5-dioxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxaldehyde towards Some Nucleophilic Reagents
Reactivity of 6-Ethyl-4,5-dioxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxaldehyde towards Some Nucleophilic Reagents Open
6-Ethyl-4,5-dioxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxaldehyde (1) was prepared and utilized as a starting material.Carboxaldehyde 1 was subjected to react with a diversity of carbon nucleophiles producing a variety of condensati…