Ahmed El-Khawaga: search on Z-Library

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1

Antibacterial, antibiofilm, and photocatalytic activities of metals-substituted spinel cobalt ferrite nanoparticles

Maksoud, M.I.A. Abdel, El-Sayyad, Gharieb S., Ashour, A.H., El-Batal, Ahmed I., Elsayed, Mohamed A., Gobara, Mohamed, El-Khawaga, Ahmed M., Abdel-Khalek, E.K., El-Okr, M.M.

Journal:

Microbial Pathogenesis

Year:

2018

Language:

english

File:

PDF, 3.59 MB

english, 2018

2

Merits of photocatalytic and antimicrobial applications of gamma-irradiated Co x Ni 1âx Fe 2 O 4 /SiO 2 /TiO 2 ; x = 0.9 nanocomposite for pyridine removal and pathogenic bacteria/fungi disinfection: implication for wastewater treatment

El-Sayyad, Gharieb S., Abd Elkodous, M., El-Khawaga, Ahmed M., Elsayed, Mohamed A., El-Batal, Ahmed I., Gobara, Mohamed

Journal:

Year:

2020

Language:

english

File:

PDF, 6.06 MB

english, 2020

3

Design, synthesis, anticorrosion efficiency, and applications of novel Gemini surfactants for preparation of small-sized hollow spheres mesoporous silica nanoparticles

El-Said, Waleed A., Moharram, Ahmed S., Hussein, Essam M., El-Khawaga, Ahmed M.

Journal:

Materials Chemistry and Physics

Year:

2018

Language:

english

File:

PDF, 13.69 MB

english, 2018

4

[2+2] Photocycloaddition of 2-Morpholinoprop-2-enenitrile to Perinaphthenone

Dietrich Döpp, Shaaban K. Mohamed, Ahmed El-Khawaga

Journal:

Helvetica Chimica Acta

Year:

2001

Language:

english

File:

PDF, 63 KB

english, 2001

5

Simple Entry into Tricyclo[3.3.0.03,7]octanes

H. Martin R. Hoffmann, Ahmed M. El-Khawaga, Hans-Heinrich Oehlerking

Journal:

European Journal of Inorganic Chemistry

Year:

1991

Language:

english

File:

PDF, 115 KB

english, 1991

6

N,O-bis(trimethylsilyl)acetamide (BSA) – A mild silyl transfer reagent

Prof. Ahmed M. El-Khawaga, Prof. PhD. Dsc H. M. R. Hoffmann

Journal:

Advanced Synthesis & Catalysis

Year:

1995

Language:

english

File:

PDF, 198 KB

english, 1995

7

The question of Friedel-Crafts transformylations. Acid-catalyzed reactions of aromatic aldehydes with arenes

Roberts, Royston M., El-Khawaga, Ahmed M., Sweeney, Kevin M., El-Zohry, Maher F.

Journal:

Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 868 KB

english, 1987

8

Simple and Clean Procedure for Three-Component Syntheses of Spiro{pyrido[2,1- b ]benzothiazole-3,3′-indolines} and Spiro{thiazolo[3,2- a ]pyridine-7,3′-indolines} in Aqueous Medium

Hussein, Essam M., El-Khawaga, Ahmed M.

Journal:

Journal of Heterocyclic Chemistry

Year:

2012

Language:

english

File:

PDF, 230 KB

english, 2012

9

MODERN FRIEDEL-CRAFTS CHEMISTRY XVI. REACTION OF THIOPHENE WITH BIFUNCTIONAL MOLECULES UNDER DIFFERENT FRIEDEL-CRAFTS CATALYSTS: ATTEMPTED SYNTHESIS OF CYCLOPENTA[b] THIOPHENES AND DIHYDROBENZO[b] THIOPHENES

El-khawaga, Ahmed M., El-zohry, Maher F., Ismail, Mohamed T.

Journal:

Phosphorous and Sulfur and the Related Elements

Year:

1987

Language:

english

File:

PDF, 335 KB

english, 1987

10

MODERN FRIEDEL-CRAFTS CHEMISTRY.XI. CYCLIZATION OF ARYL HALOALKYL SULFONES, ARYLSULFONYLACYL CHLORIDES AND THEIR CORRESPONDING SULFIDES

Abdel-wahab, Aboel-Magd A., El-khawaga, Ahmed M., El-zohry, Maher F., Khalaf, Ali A.

Journal:

Phosphorous and Sulfur and the Related Elements

Year:

1984

Language:

english

File:

PDF, 659 KB

english, 1984

11

Modern Friedel-Crafts Chemistry. Part 37. Efficient Syntheses of Some New Julolidines via Cyclialkylations of Heteroaryl Carbinols

Abd El-Aal, Hassan A. K., Khalaf, Ali A, El-Khawaga, Ahmed M. A

Journal:

Journal of Heterocyclic Chemistry

Year:

2014

Language:

english

File:

PDF, 573 KB

english, 2014

12

Transacylations between sterically hindered aromatic ketones and various arenes

El-Khawaga, Ahmed M., Roberts, Royston M., Sweeney, Kevin M.

Journal:

Journal of Organic Chemistry

Year:

1985

Language:

english

File:

PDF, 454 KB

english, 1985

13

Nonconventional Friedel-Crafts chemistry. 1. Reaction of .alpha.-tetralone and anthrone with arenes under Friedel-Crafts conditions

El-Zohry, Maher F., El-Khawaga, Ahmed M.

Journal:

Journal of Organic Chemistry

Year:

1990

Language:

english

File:

PDF, 459 KB

english, 1990

14

A novel Friedel-Crafts reaction of hindered ketones

Roberts, Royston M., El-Khawaga, Ahmed M., Roengsumran, Sophon

Journal:

Journal of Organic Chemistry

Year:

1984

Language:

english

File:

PDF, 545 KB

english, 1984

15

Friedel-Crafts reactions of tetramethylphenyl ketones with tetramethylbenzenes

El-Khawaga, Ahmed M., Roberts, Royston M.

Journal:

Journal of Organic Chemistry

Year:

1984

Language:

english

File:

PDF, 457 KB

english, 1984

16

Transsulfonylations between aromatic sulfones and arenes

El-Khawaga, Ahmed M., Roberts, Royston M.

Journal:

Journal of Organic Chemistry

Year:

1985

Language:

english

File:

PDF, 411 KB

english, 1985

17

Molecular rearrangements. III. Thermal decomposition of some selected thioesters

Abdel-Wahab, Aboel-Magd A., El-Khawaga, Ahmed M., Ismail, Mohamed T.

Journal:

Canadian Journal of Chemistry

Year:

1982

Language:

english

File:

PDF, 332 KB

english, 1982

18

Photolysis of diarylcadmium compounds in benzene

Osman, A. M., Khodair, Ahmed I., Abdel-Wahab, A. A., El-Khawaga, A. M.

Journal:

Canadian Journal of Chemistry

Year:

1979

Language:

english

File:

PDF, 157 KB

english, 1979

19

Efficient Synthesis of Some New Spirochromens Containing Indoline Moiety

El-Khawaga, Ahmed M., El-Zohry, Maher F., Mohamed, Thanaa A., Hussein, Essam M.

Journal:

Heterocyclic Communications

Year:

2010

Language:

english

File:

PDF, 915 KB

english, 2010

20

Friedel-Crafts chemistry: Part 41. A new facile synthesis of indeno[1,2-c] pyrazoles, 2H-benzo[g]indazoles and benzo[6,7]cyclohepta[1,2-c]pyrazoles via Friedel-Crafts ring closures

Abd El-Aal, Hassan Abdou Kotb, El-Khawaga, Ahmed Mahmoud Abdel Mageed, Khalaf, Ali Ali

Journal:

European Journal of Chemistry

Year:

2014

Language:

english

File:

PDF, 606 KB

english, 2014

21

CYCLIZATION OF SELECTED BENZYL SULFONE DERIVATIVES UNDER PHASE TRANSFER CATALYTIC CONDITIONS

El-zohry, Maher F., El-khawaga, Ahmed M., Abdel-wahab, Aboel-Magd A.

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1991

Language:

english

File:

PDF, 163 KB

english, 1991

22

Friedel–Crafts Chemistry. Part 43. A Convergent Construction of Some New Bridged Aza-Bicyclic Analogues of Azocine, Azonine, and Azecine via Friedel–Crafts Ring Closures

Abd El-Aal, Hassan A. K., Khalaf, Ali A., El-Khawaga, Ahmed M. A.

Journal:

Australian Journal of Chemistry

Year:

2015

Language:

english

File:

PDF, 1.50 MB

english, 2015

23

Synthesis of some new unsymmetrical aza-pyrazolomonomethine cyanine dyes

El-Kashef, Hussein S., El-Shafei, Ahmed K., El-Khawaga, Ahmed M.

Journal:

Journal of Chemical Technology and Biotechnology (-1982)

Year:

2007

Language:

english

File:

PDF, 202 KB

english, 2007

24

ELIMINATION OF THIOPHENOL FROM PHENYL ORTHOTHIOESTERS IN THE MASS SPECTROMETER AND NOVEL REARRANGEMENT OF KETENE THIOACETALS UPON ELECTRON IMPACT

El-khawaga, Ahmed M., El-zohry, Maher F.

Journal:

Phosphorous and Sulfur and the Related Elements

Year:

1987

Language:

english

File:

PDF, 391 KB

english, 1987

25

ChemInform Abstract: Simple and Clean Procedure for Three-Component Syntheses of Spiro{pyrido[2,1-b]benzothiazole-3,3′-indolines} (IV) and Spiro{thiazolo[3,2-a]pyridine-7,3′-indolines} (VI) in Aqueous Medium.

Hussein, Essam M., El-Khawaga, Ahmed M.

Journal:

Year:

2013

File:

PDF, 27 KB

2013

26

Biodiesel Production by Aspergillus niger Lipase Immobilized on Barium Ferrite Magnetic Nanoparticles

El-Batal, Ahmed, Farrag, Ayman, Elsayed, Mohamed, El-Khawaga, Ahmed

Journal:

Year:

2016

Language:

english

File:

PDF, 1.12 MB

english, 2016

27

Synthesis, Characterization, and Applications of Some New Trimeric-Type Cationic Surfactants

El-Said, Waleed A., Moharram, Ahmed S., Hussein, Essam M., El-Khawaga, Ahmed M.

Journal:

Journal of Surfactants and Detergents

Year:

2018

Language:

english

File:

PDF, 16.75 MB

english, 2018

28

Effect of gamma irradiation and/or certain entomopathogenic fungi on the larval Mortality of Galleria mellonella L

Mohamed, Hussein Farid, Sileem, Thanaa Mohamed, El-Naggar, Samira Elsaid Mostafa, Sweilem, Mahmoud Abd El-Mohsen, Ibrahim, Ahmed Adly Mohamed, El-khawaga, Ola El-sayed Abd Al-azem Abd El -Ra

Journal:

Egyptian Journal of Biological Pest Control

Year:

2018

Language:

english

File:

PDF, 654 KB

english, 2018

29

Preservation of dromedary camel embryos at 4 °C for up to 5 days: factors affecting the pregnancy and pregnancy loss rates.

Abd-Elfattah, Ahmed, Agag, Mohsen, Nasef, Mostafa, Muthukumaran, Shanmugavelu, El-Raey, Mohamed, El-Khawaga, Ahmed, Karen, Aly

Journal:

Year:

2019

Language:

english

File:

PDF, 789 KB

english, 2019

30

MANanostructured Mg substituted Mn-Zn ferrites: A magnetic recyclable catalyst for outstanding photocatalytic and antimicrobial potentials

Abdel Maksoud, M.I.A., El-Sayyad, Gharieb S., El-Khawaga, Ahmed M., Abd Elkodous, M., Abokhadra, A., Elsayed, Mohamed A., Gobara, Mohamed, Soliman, L.I., El-Bahnasawy, H.H., Ashour, A.H.

Journal:

Journal of Hazardous Materials

Year:

2020

File:

PDF, 9.10 MB

2020

31

Carbon-dot-loaded CoxNi1âxFe2O4; xâ=â0.9/SiO2/TiO2 nanocomposite with enhanced photocatalytic and antimicrobial potential: An engineered nanocomposite for wastewater treatment

Abd Elkodous, M., El-Sayyad, Gharieb S., Youssry, Sally M., Nada, Hanady G., Gobara, Mohamed, Elsayed, Mohamed A., El-Khawaga, Ahmed M., Kawamura, Go, Tan, Wai Kian, El-Batal, Ahmed I., Matsuda, Atsun

Journal:

Scientific Reports

Year:

2020

File:

PDF, 4.00 MB

2020

32

Antimicrobial and Photocatalytic Degradation Activities of Chitosan-coated Magnetite Nanocomposite

El-Khawaga, Ahmed M., Farrag, Ayman A., Elsayed, Mohamed A., El-Sayyad, Gharieb S., El-Batal, Ahmed I.

Journal:

Journal of Cluster Science

Year:

2020

File:

PDF, 5.05 MB

2020

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