E. F. El-Shehawy: шукати на сайті Z-Library

Рік:

1997

Файл:

PDF, 30 KB

1997

ChemInform Abstract: Enantioselective Allylation of N-(Trimethylsilyl)benzaldehyde Imine Using Polymer-Supported Chiral Allylboron Reagents.

A. A. EL-SHEHAWY, M. Y. ABDELAAL, K. WATANABE, K. ITO, S. ITSUNO

Журнал:

Рік:

1997

Файл:

PDF, 29 KB

1997

ChemInform Abstract: Preparation of Both Diastereomers of Homoallylic Amines by Allylmetalation of Methyl N-Benzylidene-(S)-valinate.

A. A. EL-SHEHAWY, M. A. OMARA, K. ITO, S. ITSUNO

Журнал:

Shinichi Itsuno, Katsuhiro Watanabe, Takeshi Matsumoto, Shizue Kuroda, Ayako Yokoi, Ashraf El-Shehawy

Рік:

1998

Файл:

PDF, 30 KB

1998

ChemInform Abstract: Enantioselective Synthesis of Optically Active Homoallylamines by Nucleophilic Addition of Chirally Modified Allylboranes to N-Silylimines.

Журнал:

Рік:

1999

Мова:

english

Файл:

PDF, 36 KB

english, 1999

Allylation of Aldiminomercaptotriazinones Using Allyl Halides and Allylmetal Compounds.

Журнал:

Adel M. E. Attia, Ashraf A. El-Shehawy

Рік:

2003

Файл:

PDF, 143 KB

2003

A Convenient Method for the Synthesis of 2-(β-D-Glycopyranosylthio) Pyridines.

Журнал:

Ashraf A. El-Shehawy, Nabiha I. Abdo, Ahmed A. El-Barbary, Jae-Suk Lee

Рік:

2004

Файл:

PDF, 133 KB

2004

Alternating Copolymers Based on 2,1,3-Benzothiadiazole and Hexylthiophene: Positioning Effect of Hexyl Chains on the Photophysical and Electrochemical Properties

Журнал:

European Journal of Organic Chemistry

Рік:

2011

Мова:

english

Файл:

PDF, 745 KB

english, 2011

Allylation of aldiminomercaptotriazinones using allyl halides and allylmetal compounds

S.A. El-Shehawy, A.A. Karawia

Журнал:

Heteroatom Chemistry

Рік:

2003

Мова:

english

Файл:

PDF, 129 KB

english, 2003

An alternative computational algorithm for calculating the nonlinearity of regression models with two parameters

Журнал:

Applied Mathematics and Computation

Рік:

2007

Мова:

english

Файл:

PDF, 133 KB

english, 2007

Transient solution of the M/M/c queue with balking and reneging

R.O. Al-Seedy, A.A. El-Sherbiny, S.A. El-Shehawy, S.I. Ammar

Журнал:

Computers & Mathematics with Applications

Рік:

2009

Мова:

english

Файл:

PDF, 432 KB

english, 2009

Proteomic profiling of the Baltic Sea cyanobacterium Nodularia spumigena strain AV1 during ammonium supplementation

Simina Vintila, Sara Jonasson, Henrik Wadensten, Anna Nilsson, Per E. Andrén, Rehab El-Shehawy

Журнал:

Journal of Proteomics

Рік:

2010

Мова:

english

Файл:

PDF, 402 KB

english, 2010

Polymer complexes: XLX. Novel supramolecular coordination modes of structure and bonding in polymeric hydrazone sulphadrugs uranyl complexes

A.Z. El-Sonbati, M.A. Diab, M.S. El-Shehawy, M. Moqbal

Журнал:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Рік:

2010

Мова:

english

Файл:

PDF, 475 KB

english, 2010

Efficient dual catalytic enantioselective diethylzinc addition to the exocyclic CN double bond of some 1,2,4-N-triazinylarylimines using polymer-supported chiral β-amino alcohols derived from norephedrine

Журнал:

Tetrahedron

Рік:

2007

Мова:

english

Файл:

PDF, 346 KB

english, 2007

Synthesis of novel well-defined chain-end-functionalized polystyrenes with dendritic chiral ephedrine moieties and their applications as highly enantioselective diethylzinc addition to N-diphenylphosphinoyl arylimines

Журнал:

Tetrahedron

Рік:

2007

Мова:

english

Файл:

PDF, 398 KB

english, 2007

Enantioselective diethylzinc addition to the exocyclic CN double bond of some 4-arylideneamino-3-mercapto-6-methyl-4H-1,2,4-triazin-5-one derivatives

Ashraf A. El-Shehawy, Kenji Sugiyama, Akira Hirao

Журнал:

Tetrahedron: Asymmetry

Рік:

2006

Мова:

english

Файл:

PDF, 190 KB

english, 2006

Application of well-defined chain-end-functionalized polystyrenes with dendritic chiral ephedrine moieties as reagents for highly catalytic enantioselective addition of dialkylzincs to aldehydes

Журнал:

Tetrahedron: Asymmetry

Рік:

2008

Мова:

english

Файл:

PDF, 212 KB

english, 2008

A selective and direct synthesis of 2-bromo-4-alkylthiophenes: Convenient and straightforward approaches for the synthesis of head-to-tail (HT) and tail-to-tail (TT) dihexyl-2,2′-bithiophenes

Ashraf A. El-Shehawy, Nabiha I. Abdo, Ahmed A. El-Barbary, Jae-Suk Lee

Журнал:

Tetrahedron Letters

Рік:

2010

Мова:

english

Файл:

PDF, 406 KB

english, 2010

Inhibition of cell division blocks the synthesis of the second nitrogenase (Nif2) in the cyanobacterium Anabaena variabilis

R El-Shehawy, B Bergman

Журнал:

FEMS Microbiology Letters

Рік:

2003

Мова:

english

Файл:

PDF, 190 KB

english, 2003

Enantioselective allylation of N-(trimethylsilyl)benzaldehyde imine using polymer-supported chiral allylboron reagents

Ashraf A El-Shehawy, Magdy Y Abdelaal, Katsuhiro Watanabe, Koichi Ito, Shinichi Itsuno

Журнал:

Tetrahedron: Asymmetry

Рік:

1997

Мова:

english

Файл:

PDF, 222 KB

english, 1997

Phase transfer catalyzed reactions of crosslinked chloromethylated polystyrene with vanillin

A.A Sarhan, A.A El-Shehawy, M.Y Abdelaal

Журнал:

Рік:

2002

Мова:

english

Файл:

PDF, 484 KB

english, 2002

Allylation of some arylideneaminomercaptotriazinones using polymer-supported allylboron reagents and analogous allylboration reaction of imine-supported resin

Журнал:

Shinichi Itsuno, Ashraf A El-Shehawy, Ali A Sarhan

Рік:

2003

Мова:

english

Файл:

PDF, 175 KB

english, 2003

Enantiopure N-sulfonylamino alcohols and their copolymers as chiral auxiliaries for the highly enantioselective allylboration of aldehydes

Журнал:

Rehab M. El-Shehawy, Diethelm Kleiner

Рік:

1998

Мова:

english

Файл:

PDF, 419 KB

english, 1998

The mystique of irreversibility in cyanobacterial heterocyst formation: parallels to differentiation and senescence in eukaryotic cells

Журнал:

Physiologia Plantarum

Рік:

2003

Мова:

english

Файл:

PDF, 211 KB

english, 2003

Effect of controlled expression of the hetR gene on heterocyst formation in the filamentous cyanobacterium Anabaena sp. PCC 7120

Rehab M. El-Shehawy, Diethelm Kleiner

Журнал:

Physiologia Plantarum

Рік:

2003

Мова:

english

Файл:

PDF, 411 KB

english, 2003

Synthesis of novel chiral monomers by means of Umani-Ronchi–Savoia allylation and their polymerization

Shinichi Itsuno, Ashraf A. El-Shehawy

Журнал:

Polymers for Advanced Technologies

Рік:

2001

Мова:

english

Файл:

PDF, 165 KB

english, 2001

Isolation and Sequence Analysis of Wheat Tissue-Specific cDNAs by Differential Display

Ahmed M. El-Shehawi, Mona M. Elseehy, Charles Hedgcoth

Журнал:

Plant Molecular Biology Reporter

Рік:

2011

Мова:

english

Файл:

PDF, 749 KB

english, 2011

Convenient approaches for the synthesis and characterization of well-defined linear-dendritic diblock copolymers having a definite number of peripheral primary amino groups: Exact control of numbers introduced and dendritic distribution to enhance co-operative effect

Ashraf A. El-Shehawy, Kenji Sugiyama, Akira Hirao

Журнал: