Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Mahmoud A. El-Badawi"'
Autor:
Mahmoud A. El-Badawi, Christopher Davin, Shinichi Itsuno, El-Saied A. Aly, Mahmoud A. Abdelkawy
Publikováno v:
ChemistrySelect. 6:11971-11979
Publikováno v:
ChemistrySelect. 5:6294-6298
Publikováno v:
Catalysis Communications. 146:106132
A novel chitosan-supported cinchona urea heterogeneous catalyst was developed for asymmetric reaction. The catalytic activity of the chitosan-supported organocatalyst was examined in the asymmetric Michael addition reaction to give chiral adducts in
Publikováno v:
Arabian Journal of Chemistry. 4:37-44
Diazotized aryl amines were coupled with 3-substituted 5-amino pyrazoles to produce a series of novel 3-substituted 5-amino-4-arylazopyrazoles. Also, 3-substituted 5-amino-pyrazoles were diazotized and coupled with different phenols to give the corre
Publikováno v:
Journal of the Korean Chemical Society. 54:737-743
Coupling of 5-amino-1,3-diaryl-pyrazoles 1a-c with diazonium salts of different aryl amines gave a series of novel1,3-diaryl-5-amino-4-arylazopyrazoles 3a-l . Such compounds could be also obtained by reaction of 5-amino-1,3-diaryl-4-nitroso-1 H -pyra
Publikováno v:
Loksha, Y M A, El-Badawi, M A, El-Barbary, A A, Pedersen, E B & Nielsen, C 2003, ' Synthesis of 2-Methylsulfanyl-1H-imidazoles as Novel Non-nucleoside Reverse Transcriptase Inhibitors (NNRTIs) ', Archiv der Pharmazie, vol. 226, no. 3, pp. 175-180 . https://doi.org/10.1002/ardp.200390017
alpha-Aminoketone hydrochlorides 2a-d were synthesized by Dakin-West reaction from L-phenylalanine and L-cyclohexylalanine followed by hydrolysis in acidic medium. Treatment of 2a-d with aqueous potassium thiocyanate afforded 1, 3-imidazole-2-thiones
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 177:587-596
Some of novel N , N '-bis-(1,2,4-triazin-4-yl)dicarboxylic acid amides ( 2-5 ) and thiadiazolo[2,3- b ][1,2,4]triazin-7-yl carboxylic acid derivatives ( 6 , 7 ) were prepared by heating 4-amino-6-methyl-5-oxo-3-thioxo-2,3,4,5-tetrahydro-1,2,4-triazin
Publikováno v:
Journal of Heterocyclic Chemistry. 38:711-716
Some novel 3,7-dimethyl-6H-pyrazolo[5,1-c][1,2,4]triazin-4-ones were prepared (3a-g). Compounds 3a,b were treated with hydrazines to afford various products 7a,b, 8a,b, 9 and lla,b depending on the type of hydrazine derivative and reaction conditions
Publikováno v:
ChemInform. 42
Compounds (IV), (VIIa), (VIIb), (Xb), (XIb) and (XIc) show significant antibacterial activity against Gram-positive bacteria like Staphylococcus aureus as well as Gram-negative bacteria like Bacillus cereus.
Publikováno v:
ChemInform. 26