Ashraf A. Abbas

ORCID: 0000-0001-7061-9907
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About
Contact & Profiles
Research Areas
  • Synthesis and Biological Evaluation
  • Synthesis and biological activity
  • Synthesis and Characterization of Heterocyclic Compounds
  • Chemical Synthesis and Analysis
  • Click Chemistry and Applications
  • Analytical Chemistry and Sensors
  • Fluid Dynamics and Turbulent Flows
  • Synthesis and Reactions of Organic Compounds
  • Electrochemical Analysis and Applications
  • Synthesis of Organic Compounds
  • Synthetic Organic Chemistry Methods
  • Photochromic and Fluorescence Chemistry
  • Electrochemical sensors and biosensors
  • Wind and Air Flow Studies
  • Metal complexes synthesis and properties
  • Synthesis and properties of polymers
  • Organometallic Compounds Synthesis and Characterization
  • Molecular Sensors and Ion Detection
  • Chemical Synthesis and Reactions
  • Asymmetric Synthesis and Catalysis
  • Synthesis and Reactivity of Heterocycles
  • Crystal structures of chemical compounds
  • Quinazolinone synthesis and applications
  • Heat Transfer Mechanisms
  • Multicomponent Synthesis of Heterocycles

Cairo University
2007-2025

National University of Malaysia
2016-2024

Veterinary Serum and Vaccine Research Institute
2023

Mansoura University
2022

Nanjing University of Aeronautics and Astronautics
2022

Memorial University of Newfoundland
2022

Alexandria University
2022

Airbus (Spain)
2012

Airbus (India)
2007

Agricultural Research Center
2006

The fluorinated heterocycles are main components of 20% the anticancer and antibiotic drugs, this review describes reported antimicrobial activities five-membered their benzo-fused systems.

10.1039/d4ra01387e article EN cc-by-nc RSC Advances 2024-01-01

A series of bis -thiazoles 5a–g were synthesized from -thiosemicarbazone 3 with hydrazonoyl chlorides 4a–g. Reaction two equivalents α-halocarbonyl compounds 6–8, 10, and 12a–d afforded the corresponding -thiazolidines 9, 11, 13a–d, respectively. Condensation -thiazolidin-4-one 9 different aromatic aldehydes furnished -thiazolidin-4-ones 14a–d. Compounds 5a–g, 13a,c,d screened in vitro for their cytotoxic activities a panel cancer cell lines. 5a–c, 5f–g, exhibited remarkable activities,...

10.3389/fchem.2021.694870 article EN cc-by Frontiers in Chemistry 2021-08-12

UO 2 (II), Er (III), and La (III) complexes were prepared from new bis (amino triazole) Schiff base ligand. The ligand was synthesized by condensation of 1,3‐bis(4‐amino‐5‐phenyl‐1,2,4‐triazol‐3‐ylsulfanyl)propane with benzaldehyde. structure the compounds confirmed some spectroscopic tools such as 1 H‐NMR, UV‐Vis, IR, well molar conductance, mass spectrometry, elemental analysis, thermogravimetric analysis (TG), differential (DTG), thermal (DTA) studies. data revealed coordination...

10.1002/aoc.6292 article EN Applied Organometallic Chemistry 2021-05-30

The condensation reaction between 5‐amino‐1,3,4‐thiadiazole‐2‐thiol and 1,2‐dibromoethane to afford the ligand L was carried out in direct obtain desired organic ligand. New [Er(L)ClH 2 O]Cl ·3H O, [Yb(L)(H O) ]Cl 3 ·4H [Ta(L)Cl O complexes have been prepared from (L) by reacting one mole metal ions with L. In addition their physical characteristics, they were described using spectroscopic techniques (infrared [IR], nuclear magnetic resonance [NMR], UV–Vis), gas chromatography (GC)‐mass,...

10.1002/aoc.7015 article EN Applied Organometallic Chemistry 2023-01-12

Some heterocycles having bisamide linkage are receiving much interest due to their remarkable biological potencies and they naturally occurring. bisamides thiazole derivatives were found inhibit the protein levels of Bcl-2 significantly. This prompted us synthesize new bis(heterocyclic) function explore anti-cancer activities.Novel bis-amide-based bis-thiazoles thiadiazoles synthesized by reaction a bisthiosemicarbazone with variety hydrazonoyl chlorides, a-chloroacetylacetone haloacetic...

10.2174/1871520622666220615140239 article EN Anti-Cancer Agents in Medicinal Chemistry 2022-06-16

A series of bis(triazolothiadiazines) and bis(quinoxalines) were synthesized tested for their cytotoxicity apoptosis-induction through PARP-1 EGFR as molecular targets. Compound 8i exhibited high cytotoxic activity promising dual enzyme inhibition.

10.1039/d2ra03549a article EN cc-by-nc RSC Advances 2022-01-01

Over time, urban dwellers have become increasingly concerned with the thermal characteristics in their neighbourhood. Modern Asian cities environmental diversity introduced complexity to heat island (UHI) predictions. This research aimed discover relative contribution of different and anthropogenic parameters UHI intensity Kuala Lumpur, Malaysia. Four days temperature wind data were collected from seven sites representing various land covers inside outside city. Besides, humidity solar...

10.1016/j.aej.2020.07.053 article EN cc-by-nc-nd Alexandria Engineering Journal 2020-08-08

Due to the toxicity of lead(<sc>ii</sc>) all living organisms destroying central nervous system and leading circulatory brain disorders, development effective selective ionophores for its detection is very important.

10.1039/d0ra01435d article EN cc-by RSC Advances 2020-01-01

Three new metal complexes of 4‐(benzylideneamino)‐5‐phenyl‐4H‐1,2,4‐triazole‐3‐thiol ligand (L) and three transition ions: Fe (III), Cu (II), Zn (II) were synthesized characterized. The derived from 4‐amino‐5‐phenyl‐1,2,4‐triazole‐3‐thiol benzaldehyde was in a 1:1 molar ratio. All the chelates characterized by elemental analysis, conductivity measurements, thermal FT‐IR, 1 H‐NMR spectroscopy. IR spectrum revealed that Schiff base coordinated neutral bidentate manner with ions through...

10.1002/aoc.6219 article EN Applied Organometallic Chemistry 2021-04-12

Many bis-1,3,4-thiadiazoles 7, 10a,b, 13a-c and bis-thiazoles 16a-d, 19a-d were synthesized from reaction of bis(hydrazonoyl) chloride 4 with a series methyl carbodithioate thiosemicarbazone derivatives. Their antimicrobial activities evaluated six selected microorganisms. Some the prepared derivatives showed higher activity than reference used. Furthermore, molecular docking most active compound 10 b site target enzymes studied using MOE 2014.010 software package.

10.1080/10406638.2019.1709085 article EN Polycyclic aromatic compounds 2020-01-08

Abstract magnified image This review covers the main strategies for synthesis of N ‐pivot lariat ethers as well their specific syntheses.

10.1002/jhet.5570450101 article EN Journal of Heterocyclic Chemistry 2008-01-01

The garden-city model, characterised by sprawling urban expansion and extensive open spaces, features green water surfaces alongside substantial road networks, large parking lots unshaded lands. This diverse landscape contributes to uneven air temperature distribution within the city. Our study investigated heat island (UHI) patterns in various environments Putrajaya, focusing on rural, business, residential near-water areas. Atmospheric data were collected over a year. Putrajaya exhibits...

10.1177/1420326x241244459 article EN Indoor and Built Environment 2024-04-03
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