Výsledky vyhledávání - "Hana'a A. Al-Saman"

Facile construction of substituted pyrimido[4,5-d]pyrimidones by transformation of enaminouracil

Autor: Hana’a A. Al-Saman, Hanafi H. Zoorob, Wafaa S. Hamama, Mohamed A. Ismail

Publikováno v: Journal of Advanced Research, Vol 4, Iss 2, Pp 115-121 (2013)
Journal of Advanced Research

The reaction of 6-amino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (1) as a binucleophile with primary aromatic or heterocyclic amines and formaldehyde or aromatic (heterocyclic) aldehydes in a molar ratio (1:1:2) gave the pyrimido[4,5-d]pyrimidin-2,4-d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cadb65f49246399fed856fb9ab8f43d0
https://doi.org/10.1016/j.jare.2012.01.001

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Reaction of (E)-3-(Benzo[d][1,3]dioxol-5-yl)-2- Cyanoacryloyl Chloride with Nucleophilic Reagents Containing Nitrogen and Sulfur

Autor: Nadia K. El‐Aasar, Ahmed K. El-Ziaty, S. A. Shiba, Hana'a A. Al-Saman

Publikováno v: Phosphorus, Sulfur, and Silicon and the Related Elements. 185:1645-1657

(E)-3-(Benzo[d][1,3]dioxol-5-yl)-2-cyanoacryloyl chloride was reacted with nucleophilic reagents containing nitrogen and sulfur to give new acryloyl amides, imides, thioesters, and heterocyclic systems. Some of these products showed moderate activiti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bbd449740237f2b0bb58bc28fcbba1ba
https://doi.org/10.1080/10426500903176547

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Uses of Piperonal in the Synthesis of Novel Prop-2-Enoyl Amides, Esters, Heterocyclic Systems and Study of their Antibacterial Activities

Autor: Nadia K. El‐Aasar, Hana'a A. Al-Saman, S. A. Shiba, Ahmed K. El-Ziaty

Publikováno v: Journal of Chemical Research. 2008:500-506

Novel ( E)-3-(benzo[d][1,3]dioxol-5-yl)-2-cyanoacryloyl chloride 4 was condensed with several mono-; 1,2-; 1,3- and 1,4-bi-nucleophilic reagents containing nitrogen and oxygen to give new 2-propenoylamide and ester derivatives. Some of these amides c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59615a3afc0a924d88244050d2136be7
https://doi.org/10.3184/030823408x340834

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ChemInform Abstract: Uses of Piperonal in the Synthesis of Novel Prop-2-enoyl Amides, Esters, Heterocyclic Systems and Study of Their Antibacterial Activities

Autor: S. A. Shiba, Nadia K. El‐Aasar, Ahmed K. El-Ziaty, Hana'a A. Al-Saman

Publikováno v: ChemInform. 40

O. The mass spectra were determined using MP model MS-5988 and Shimadzu single focusing mass spectrophotometer (70 eV). Elemental analysis were investigated by Elementar analyser Vario EL III. Physical data are reported in Table 1, The solid separate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66c88feb14be3aadc1930629cfdd9d3d
https://doi.org/10.1002/chin.200905030

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Convenient Selective Synthesis of Substituted Pyrido[2,3-d]pyrimidones and Annulated Derivatives

Autor: Wafaa S. Hamama, Hana’a A. Al-Saman, Mohamed A. Ismail, Hanafi H. Zoorob

Publikováno v: ChemInform. 38

The reaction of 6-aminouracil (1) with the appropriate α,β -unsaturated ketones, gave the corresponding pyrido[2,3-d]pyrimidin-2,4-diones 3, 6, 8 and 10, respectively. Treatment of 1 with salicylaldehyde, 6-carboethoxy-3,5-diphenyl-2-cyclohexenone

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f00afd3c27bda971a0237e2097079dbf
https://doi.org/10.1002/chin.200722157

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