Prof. Dr. Ahmed Fathy Darweesh Ramadan

Profile

Academic positionFull Professor
Research fieldsNatural Product Chemistry,Organic Molecular Chemistry
Keywordsphotoisomerization, polycatenar, Liquid crystals, mesogenic dimers, nonsymmetric dimers
Honours and awards

2017: Cairo University Encouragement Award in basic Science

2016: Egyptian Heterocyclic chemical society award for the best research paper of young chemist

Current contact address

CountryEgypt
CityGiza
InstitutionCairo University
InstituteFaculty of Science, Chemistry Department

Host during sponsorship

Prof. Dr. Peter MetzInstitut für Organische Chemie, Technische Universität Dresden, Dresden
Prof. Dr. Carsten TschierskeInstitut für Organische Chemie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale)
Prof. Dr. Rene CsukInstitut für Organische Chemie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale)
Start of initial sponsorship01/09/2012

Programme(s)

2012Humboldt Research Fellowship Programme for Postdocs

Publications (partial selection)

2024Mohamed Alaasar, Ahmed F. Darweesh, Yu Cao, Konstantin Iakoubovskii and Masafumi Yoshio: Electric field- and light-responsive oxadiazole bent-core polycatenar liquid crystals. In: J. Mater. Chem. C, 12, 2024, 1523-1532
2024Mohamed Alaasar, Ahmed F. Darweesh, Christian Anders, Konstantin Iakoubovskii and Masafumi Yoshio: Luminescent and photoconductive liquid crystalline lamellar and helical network phases of achiral polycatenars. In: Materials Advances, 5, 2024, 561-569
2023Hadeel F. Hammad, Ahmed F. Darweesh, Mahfouz A. Abdelaziz, Ismail A. Abdelhamid, and Ahmed H. M. Elwahy: 2-Oxo-2-(arylamino)ethyl 4-formylbenzoates: Aldehyde precursors for the synthesis of new 2-amino-3-cyano-1,4-dihydropyrans. In: Arkivoc, vii, 2023, 202312138
2023Mohamed Alaasar, Christian Anders, Rami Pashameah and Ahmed F. Darweesh: Azopyridine-based hydrogen-bonded liquid crystals with thioether tail. In: liquid crystals, 2023, https://doi.org/10.1080/02678292.2023.2253199
2023Reham Eid Abdelwahab, Ahmed F. Darweesh, Mohamed A. Ragheb, Ismail A. Abdelhamid and Ahmed H.M. Elwahy: Synthesis of New 2-(4-(1,4-Dihydropyridin-4yl)Phenoxy)-N-Arylacetamides and Their Heterocyclic-Fused Derivatives via Hantzsch-Like Reaction. In: Polycyclic Aromatic Compounds, 43, 2023, 1974-1986
2023Hadeer M. Diab, Basma Elsayed, Ahmed F. Darweesh, Ismail A. Abdelhamid and Ahmed H. M. Elwahy: Synthesis of Novel Bis(Sulfanediyl)Bis(Tetrahydropyrimido[4,5-b]Quinoline-4,6-Diones) Linked to Butenyl and Butynyl Spacers via Thioether Linkages. In: Polycyclic Aromatic Compounds, 43, 2023, 4084-4102
2023Hadeel F. Hammad, Ahmed F. Darweesh, Mahfouz A. Abdelaziz, Ahmed H. M. Elwahy and Ismail A. Abdelhamid: Synthesis of dihydropyridine, fused dihydropyridines and benzo[4,5]imidazo[2,1-b]quinazolines linked to ester and amide moieties via a benzene ring as new hybrid molecules. In: Synthetic comm, 53, 2023, 1992-2001
2023Hadeel F. Hammad, Ahmed F. Darweesh, Mahfouz A. Abdelaziz, Ahmed H. M. Elwahy and Ismail A. Abdelhamid: Synthesis of novel dihydropyridine, fused dihydropyridines, hexahydrobenzo[4,5]imidazo[2,1-b]quinazolines, and fused-pyrans linked to piprazine core via benzoyloxyacetyl likages as new hybrid molecules utilizing Michael, and Hantzsch reaction. In: Synthetic comm, 53, 2023, 1305-1318
2023Hadeer M. Diab, Dina Mamdouh Mohamed, Ahmed F. Darweesh, Ismail A. Abdelhamid and Ahmed H. M. Elwahy: Synthesis of novel thiazole, imidazole, benzimidazole, and benzothiazole derivatives incorporating 2‐phenoxy‐N‐arylacetamide unit as novel hybrid molecules. In: J. Heterocycl. Chem, 60, 2023, 754-767
2022Ibrahim Taha Radwan, Ahmed H. M. Elwahy, Ahmed F. Darweesh, Marwa Sharaky, NohaBagato, Hanem FathyKhater and Mostafa E. Salem: Design, synthesis, docking study, and anticancer evaluation of novel bis-thiazole derivatives linked to benzofuran or benzothiazole moieties as PI3k inhibitors and apoptosis inducers. In: J. Mol. Struct., 1265, 2022, 133454
2022Mohamed A. Ragheb, Reham E. Abdelwahab, Ahmed F. Darweesh, Marwa H. Soliman, Ahmed H. M. Elwahy and Ismail A. Abdelhamid: Hantzsch-Like Synthesis, DNA Photocleavage, DNA/BSA Binding, and Molecular Docking Studies of Bis(sulfanediyl)bis(tetrahydro-5-deazaflavin) Analogs Linked to Naphthalene Core. In: Chem. Biodiversity, 19, 2022, e202100958
2021Ahmed F. Darweesh, Soad K. Salama, Ismail A. Abdelhamid and Ahmed H. M. Elwahy: Bis(aldehydes): Versatile Precursors for Novel Bis(14H-dibenzo[a,j]xanthenes), Bis(pyrano[3,2-c:5,6-c']dichromenedione), and Bis(dihydrobenzo[a]xanthenones) via Multicomponent Reactions. In: J. Heterocycl. Chem., 58, 2021, 315-328
2021Ahmed F. Darweesh, Soad K. Salama, Ismail A. Abdelhamid and Ahmed H. M. Elwahy: Green synthesis of novel bis(hexahydro-1H-xanthene-1,8(2H)-diones) employing p-toluenesulfonic acid (p-TSA) as a solid acid catalyst. In: Synthetic comm., 51, 2021, 471-484
2021Amr M. Abdelmoniem, Hadeel F. Hammad, Ahmed F. Darweesh, Mahfouz A. Abdelaziz, Ismail A. Abdelhamid and Ahmed H. M. Elwahy: Hantzsch one-pot multicomponent synthesis of a novel series of bis(9,10-diarylhexahydroacridine-1,8-diones). In: Synthetic comm., 51, 2021, 2695–2712
2021Mohamed Alaasar, Ahmed F. Darweesh, Xiaoqian Cai, Feng Liu, Carsten Tschierske: Mirror symmetry breaking and network formation in achiral polycatenars with thioether tail. In: Chemistry–A European Journal, 27, 2021, 14921–14930
2021Ahmed F. Darweesh, Nesma A. Abd El-Fatah, Samir A. Abdel-Latif, Ismail A. Abdelhamid, Ahmed H. M. Elwahy and Mostafa E. Salem: Synthesis and DFT studies of novel aminoimidazodipyridines using 2-(3Himidazo[4,5-b]pyrid-2-yl)acetonitrile as an efficient key precursor. In: Arkivoc, viii, 2021, 23-37
2021Soad K. Salama, Ahmed F. Darweesh, Ismail A. Abdelhamid & Ahmed H. M.Elwahy: p-TSA Catalyzed One-Pot Synthesis of SomeNovel Bis(Hexahydroacridine-1,8-Diones) andBis(Tetrahydrodipyrazolo[3,4-b:4?,3?-e]Pyridines)Derivatives. In: Polycyclic Aromatic Compoundshttps://doi.org/10.1080/10406638.2019.1678184, 41, 2021, 1392-1405
2020Salem, Mostafa E and Elwahy, Ahmed HM and Darweesh, Ahmed F: An expedient synthesis of novel bis [thienopyridines] linked to arene or heteroarene core as novel hybrid molecules. In: Arkivoc, 2020, 312-329
2020Mohamed Alaasar, Jaques-Christopher Schmidt, Ahmed F. Darweesh, Carsten Tschierske: Azobenzene-based supramolecular liquid crystals: The role of core fluorination. In: Journal of Molecular Liquids, 2020, 113252
2020Ahmed F. Darweesh, Nesma A. Abd El-Fatah, Ismail A. Abdelhamid, Ahmed H. M. Elwahy & Mostafa E. Salem: Investigation of the reactivity of (1Hbenzo[d]imidazol-2-yl)acetonitrile and(benzo[d]thiazol-2-yl)acetonitrile as precursors for novel bis(benzo[4,5]imidazo[1,2-a]pyridines) and bis(benzo[4,5]thiazolo[3,2-a]pyridines). In: Synthetic Communicationshttps://doi.org/10.1080/00397911.2020.1784436, 50, 2020, 2531-2544
2020Mostafa E. Salem, Ahmed F. Darweesh & Ahmed H. M. Elwahy: Synthesis of novel scaffolds based on thiazole or triazolothiadiazine linked to benzofuran or benzo[d]thiazole moieties as new hybrid molecules. In: Synthetic Communications, 2020, 256-270
2019Wang, Yuzhou and Darweesh, Ahmed F and Zimdars, Patrick and Metz, Peter: An efficient synthesis of the guaiane sesquiterpene (-)-isoguaiene by domino metathesis. In: Beilstein journal of organic chemistry, 15, 2019, 858--862
2019Nesma A. Abd El-Fatah, Ahmed F. Darweesh, Mostafa E. Salem, Ismail A. Abdelhamid, and Ahmed H. M. Elwahy: Microwave assisted synthesis of novel 1,?-bis(quinoxalin-2-yl)phenoxy)alkanes or arenes. In: Arkivoc , 2019, 252-266
2019Mostafa E. Salem, Ashour A. Ahmed, Ahmed F. Darweesh, Oliver Kühn and Ahmed H.M. Elwahy: Synthesis and DFT calculations of 2-thioxo-1,2-dihydropyridine-3- carbonitrile as versatile precursors for novel pharmacophoric hybrid molecules. In: J. Mol. Struct., 2019, 19-30
2019Mostafa E. Salem, Mohamed Hosny, Ahmed F. Darweesh & Ahmed H. M. Elwahy: Synthesis of novel bis- and poly(aryldiazenylthiazoles). In: Synthetic Communications, 2019, 2319-2329
2019Mostafa E. Salem, Ahmed F. Darweesh, Mohamed R. Shaaban and Ahmed H. M. Elwahy: Synthesis of novel bis- and poly(hydrazinylthiazole) linked to benzofuran or benzothiazole as new hybrid molecules. In: Arkivoc, 2019, 73-88
2018Mostafa E. Salem, Ahmed F. Darweesh and Ahmed H. M. Elwahy: 2-Mercapto-4,6-disubestituted nicotinonitriles: Versatile Precursors for Novel Mono- and Bis[thienopyridines]. In: J. sulfur Chem, 2018, 525-543
2018Kamal M. Dawood, Ahmed F. Darweesh, Mohamed R. Shaaban and Ahmed M. Farag: Microwave promoted Heck and Suzuki coupling reactions of new 3-(5-bromobenzofuranyl)pyrazole in aqueous media. In: Arkivoc, 2018, 348-358
2018Mohamed Hosny, Mostafa E. Salem, Ahmed F. Darweesh, and Ahmed H. M. Elwahy: Synthesis of Novel Bis(thiazolylchromen-2-one) Derivatives Linked to Alkyl Spacer via Phenoxy Group.. In: J. Heterocycl. Chem, 2018, 2342-2348
2017Mostafa E. Salem, Ahmed F. Darweesh, Ahmed E. M. Mekky, Ahmad M. Farag and Ahmed H. M. Elwahy: 2-Bromo-1-(1H-pyrazol-4-yl)ethanone: Versatile precursor for novel mono- and bis[pyrazolylthiazoles]. . In: J. Heterocycl. Chem., 2017, 226-234
2017Nesma A. Abd El-Fatah, Ahmed F. Darweesh, Adel A. Mohamed, Ismail A. Abdelhamid, Ahmed H.M. Elwahy: Experimental and theoretical study on the regioselective bis- and polyalkylation of 2-mercaptonicotinonitrile and 2- mercaptopyrimidine-5-carbonitrile derivatives. In: Tetrahedron , 2017, 1436-1450
2017Soad K. Salama, Ahmed F. Darweesh, Ismail A. Abdelhamid and Ahmed H. M. Elwahy Microwave assisted green multicomponent synthesis of novel bis(2-amino-tetrahydro-4H-chromene-3-carbonitrile) derivatives using Chitosan as ecofriendly basic catalyst. . In: J. Heterocycl. Chem., , 2017, 305-311
2017Soad K. Salama, Magda F. Mohamed, Ahmed F. Darweesh, Ahmed H.M. Elwahy, Ismail A. Abdelhamid: Molecular docking simulation and anticancer assessment on human breast carcinoma cell line using novel bis(1,4-dihydropyrano[2,3-c] pyrazole-5-carbonitrile) and bis(1,4-dihydropyrazolo[40,30:5,6]pyrano [2,3-b]pyridine-6-carbonitrile) derivatives. In: Bioorganic Chemistry , 2017, 19-29
2017Abd El-Fatah, Nesma A and Darweesh, Ahmed F and Mohamed, Adel A and Abdelhamid, Ismail A and Elwahy, Ahmed HM: Regioselective synthesis and theoretical studies of novel bis (tetrahydro [1, 2, 4] triazolo [5, 1-b] quinazolin-8 (4H)-ones) catalyzed by ZnO nanoparticles. In: Monatshefte für Chemie-Chemical Monthly, 148, 2017, 2107--2122
2017Mostafa E. Salem, Ahmed F. Darweesh, Ahmad M. Farag and Ahmed H. M. Elwahy: Synthesis and structures of novel multi-armed molecules involving benzene as a core and 4-phenylthiazole, 4-pyrazolylthiazole or thiadiazole units as arms.. In: J. Heterocycl. Chem , 2017, 586-595
2016Mostafa E. Salem, Ahmed F. Darweesh, Ahmad M. Farag and Ahmed H. M. Elwahy: 2-Bromo-1-(1H-pyrazol-4-yl)ethanone: Versatile Precursors for Novel Mono-, Bis- and Poly{6-(1H-pyrazol-4-yl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines}.. In: Tetrahedron, 2016, 712-719
2016Gumaa A. El-Nagar, Ahmed F. Darweesh, Ibrahim Sadieka: A novel nano-palladium complex anode for formic acid electro-oxidation. In: Electrochimica Acta, 215, 2016, 334--338
2016Kamal M. Dawood, Andrea Bramborg, Ahmed F. Darweesh, Katrin Spinde, Victor Rogachev, Anne Jäger, Peter Metz: ALKOXIDE-DIRECTED 1,4-HYDRIDE ADDITION TO a,b-UNSATURATED SULTONES. In: Heterocycles , 2016, 723-736
2016Ahmed F. Darweesh, Ahmed E. M. Mekky, Amani A. Salman, Ahmad M. Farag1: Efficient, microwave-mediated synthesis of benzothiazole- and benzimidazole-based heterocycles. In: research on chemical intermediates, 2016, 4341-4358
2016Ahmed F. Darweesh, Ahmed M. Mansour, Ahmed H. M. Elwahy: Novel bis(benzothiazole-oxime)-based Pd(II)-complex: Synthesis, characterization, quantum chemical calculations and catalytic significance in Suzuki-Miyaura and Heck-Mizoroki cross coupling reactions.. In: Monatshefte für Chemie, 2016, 1197-1205
2016Magda F. Mohamed, Ahmed F. Darweesh, Ahmed H. M. Elwahy and Ismail A. Abdelhamid: Synthesis, Characterization And Antitumor Activity Of Novel Tetrapodal 1,4-Dihydropyridines: p53 Induction, Cell Cycle Arrest And Low Damage Effect On Normal Cells Induced By Genotoxic Factor H2O2. In: RSC Advances, 2016, 40900-40910
2015Ismail A. Abdelhamid, Ahmed F. Darweesh, Ahmed H. M. Elwahy Synthesis and characterization of poly(2,6-dimethyl-4-phenyl-1,4-dihydropyridinyl)arenes as novel multi-armed molecules. In: Tetrahedron letter, 2015, 7085-7088
2014Darweesh, Ahmed F and Mekky, Ahmed EM and Salman, Amani A: SYNTHESIS OF NOVEL BENZIMIDAZOLE AND BENZOTHIAZOLE DERIVATIVES. In: Heterocycles: an international journal for reviews and communications in heterocyclic chemistry, 89, 2014, 113--125
2014Ahmed E. M. Mekky, Ahmed Fathy Darweesh Ramadan, Amani A. Salman, and Ahmad M. Farag: Synthesis of Novel Thiazole and 1,3,4-Thiadiazole Derivatives Incorporating Phenylsulfonyl Moiety. In: HETEROCYCLES, 2014, 1827-1843
2012Ahmed H. M. Elwahy, Ahmed F. Darweesh, and Mohamed R. Shaaban: Microwave-Assisted Synthesis of Bis(enaminoketones): Versatile Precursors for Novel Bis(pyrazoles) via Regioselective 1,3-Dipolar Cycloaddition with Nitrileimines. In: Journal of Heterocyclic Chemistry, 2012, 1120-1125
2010Shaaban, Mohamed R and Eldebss, Taha MA and Darweesh, Ahmed F and Farag, Ahmad M: A convenient synthesis of pyrazole-substituted heterocycles. In: Journal of Chemical Research, 34, 2010, 8--11
2010Darweesh, Ahmed F and Shaaban, Mohamed R and Farag, Ahmad M and Metz, Peter and Dawood, Kamal M: Facile access to biaryls and 2-acetyl-5-arylbenzofurans via Suzuki coupling in water under thermal and microwave conditions. In: Synthesis, 2010, 2010, 3163--3173
2010Mohamed R. Shaaban, Ahmed F. Darweesh, Kamal M. Dawood, and Ahmad M. Farag: Mizoroki-Heck cross-couplings of 2-acetyl-5-bromobenzofuran and aryl halides under microwave irradiation. In: ARKIVOC , 2010, 208-225
2008Mohamed R. Shaaban, Taha. M. A. Eldebss, Ahmed F. Darweesh, and Ahmad M. Farag: Synthesis of novel Pyrazolo[3,4-d]pyridazine, Pyrido[1,2-a]-benzimidazole, Pyrimido[1,2-a]benzimidazole and Triazolo[4,3-a]Pyrimidine Derivatives. In: J. Heterocycl. Chem.,, 2008, 1739-1744