Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Nagwa Mohamed Mahrous Hamada"'
Publikováno v:
Molecules, Vol 20, Iss 6, Pp 10468-10486 (2015)
The present work deals with the synthesis of acetoxysulfonamide pyrazole derivatives, substituted 4,5-dihydropyrazole-1-carbothioamide and 4,5-dihydropyrazole-1-isonicotinoyl derivatives starting from substituted vanillin chalcones. Acetoxysulfonamid
Externí odkaz:
https://doaj.org/article/3848f0253a6e482eb7f5052e9fdd34a9
Publikováno v:
Molecules, Vol 17, Iss 5, Pp 4962-4971 (2012)
Reaction of a series of (E)-3-phenyl-4-(p-substituted phenyl)-3-buten-2-ones with p-sulfamylphenyl hydrazine in glacial acetic acid gave the corresponding hydrazones, subsequent treatment of which with 30% HCl afforded pyrazole-1-sulphonamides. On th
Externí odkaz:
https://doaj.org/article/a41aeae033e444eb8ebb2cfe738c19ab
Publikováno v:
Molecules, Vol 16, Iss 9, Pp 7736-7745 (2011)
A series of 3,5-disubstituted pyrazole-1-carboxamides were obtained by treatment of chalcones with semicarbazide hydrochloride in dioxane containing sodium acetate/acetic acid as a buffer solution. N-acetyl derivatives of pyrazole-1-carboxamides were
Externí odkaz:
https://doaj.org/article/facad728a34a4621b0a7582dd30f2950
Publikováno v:
Molecules, Vol 16, Iss 3, Pp 2304-2312 (2011)
Some new heterocyclic compounds containing isoxazole, pyrazole and oxadiazole ring systems were prepared from various chalcones. The synthesized compounds have been characterized by elemental analysis and spectral methods. These compounds were screen
Externí odkaz:
https://doaj.org/article/be3546fc180846a48e74319b361d838a
Autor:
Ezzat A. Hamed, Yasser R. Elmarassi, Nagwa Mohamed Mahrous Hamada, Yasmen M. Moghazy, Magda F. Fathalla
Publikováno v:
International Journal of Chemical Kinetics. 52:341-355
Publikováno v:
Advanced Materials Letters. 11:1-6
Autor:
Nagwa Mohamed Mahrous Hamada
Publikováno v:
ChemistryOpen. 7:814-823
In this study, 2-mercapto-3-phenyl-2,3-dihydro-1H-quinazolin-4-one (1), which exists as a thiol and thione tautomer, was treated with acetylacetone to give the target compound, namely, 1-methyl-5-phenyl-5H-pyrido[1,2-a]quinazoline-3,6-dione (2). The
Autor:
Khairia M. Al-Ahmary, Moustafa M. Habeeb, Ramadan Ahmed Mekheimer, Nagwa Mohamed Mahrous Hamada, Maha S. Al-Enezi
Publikováno v:
Journal of Molecular Liquids. 249:501-510
A novel quinoline derivative, 2-amino-4-(2,4,6-trinitrophenylamino)-quinoline-3-carbonitrile (ATQC) has been synthesized through condensation reaction between 2,4-diaminoquinoline-4-carbonitrile (DAQC) with picric acid (PA) in methanol. It has been p
Publikováno v:
Molecules, Vol 16, Iss 9, Pp 7736-7745 (2011)
Molecules; Volume 16; Issue 9; Pages: 7736-7745
Molecules
Molecules; Volume 16; Issue 9; Pages: 7736-7745
Molecules
A series of 3,5-disubstituted pyrazole-1-carboxamides were obtained by treatment of chalcones with semicarbazide hydrochloride in dioxane containing sodium acetate/acetic acid as a buffer solution. N-acetyl derivatives of pyrazole-1-carboxamides were
Publikováno v:
Molecules
Molecules; Volume 16; Issue 3; Pages: 2304-2312
Molecules, Vol 16, Iss 3, Pp 2304-2312 (2011)
Molecules; Volume 16; Issue 3; Pages: 2304-2312
Molecules, Vol 16, Iss 3, Pp 2304-2312 (2011)
Some new heterocyclic compounds containing isoxazole, pyrazole and oxadiazole ring systems were prepared from various chalcones. The synthesized compounds have been characterized by elemental analysis and spectral methods. These compounds were screen