Zobrazeno 1 - 10 of 26 pro vyhledávání: '"M. S. Amine"'
1
Akademický článek
New heterocycles having double characters; as antimicrobial and surface active agents.
Autor: M. S. Amine, A. M. F.Eissa, A. A. El-Sawy, A. F. Shaaban, R. El-Sayed
Publikováno v: Grasas y Aceites, Vol 55, Iss 4, Pp 370-377 (2004)
Fatty acids isothiocyanate (1) was used as a starting material to synthesize some important heterocycles such as triazoles, oxazoles, thiazoles, benzoxazoles and quinazolines by treating with different types of nucleophiles such as nitrogen nucleophi
Externí odkaz: https://doaj.org/article/e4e645dca1fc4b9e9ff4f3c127064977
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2
Regioselective synthesis, antitumor and antioxidant activities of some 1,2,4-triazole derivatives based on 4-phenyl-5-(quinolin-8-yloxy)methyl-4H-1,2,4-triazole-3-thiol
Autor: I. M. Fouda, Mohamed S. Behalo, M. S. Amine
Publikováno v: Phosphorus, Sulfur, and Silicon and the Related Elements. 192:410-417
Regioselective synthesis of some triazole derivatives 4–18 was achieved from the versatile, readily accessible 4-phenyl-5-(quinolin-8-yloxy)methyl-4H-1,2,4-triazole-3-thiol/thione 3. The structures of the newly synthesized products were confirmed a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e37c9bfe58d574ca84ab1495ce9352e
https://doi.org/10.1080/10426507.2016.1247087
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5
DBU-Catalyzed transprotection of N-Fmoc-cysteine di- and tripeptides into S-Fm-cysteine di- and tripeptides
Autor: Alan R. Katritzky, Nader E. Abo-Dya, M. S. Amine, Said A. El-Feky, Srinivasa R. Tala, Abdelmotaal Abdelmajeid
Publikováno v: Org. Biomol. Chem.. 9:596-599
The transprotection of N-Fmoc-cysteine containing di- and tripeptides possessing a free SH group to produce the corresponding S-Fm-cysteine di- and tripeptides bearing a free amino group is accomplished efficiently with DBU in dry THF. The N-Fmoc to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83f7d32d5f0cbaca705c366abeea21ef
https://doi.org/10.1039/c0ob00663g
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6
γ-Oxo Carboxylic Acids in Heterocyclic Synthesis, III. Synthesis of Biologically Active 4-Benzylamino-6-(5,5-dioxodibenzothiophen- 2-yl)-2,3,4,5-tetrahydropyridazin-3-ones
Autor: Aly A. Aly, Shafey G. Donia, M. M. H. Arief, M. S. Amine, A. A. F. Wasfy
Publikováno v: Zeitschrift für Naturforschung B. 57:668-676
α-Benzylamino-β-(5,5-dioxodibenzothiophen-2-carbonyl)propionic acid (1) has been synthesized by treating the corresponding β-aroylacrylic acid with benzylamine in dry benzene. On treatment with hydrazine hydrate the keto acid 1 furnishes the corre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e61d06c3907c6c69d254f5c8b96e483e
https://doi.org/10.1515/znb-2002-0613
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7
α,β-Unsaturated γ-Oxo Carboxylic Acids in Heterocylic Synthesis II. Behavior of 4-(5,5-Dioxodibenzothiophen-2-yl)-4-oxo-2-butenoic Acid Towards Carbon Nucleophiles under Michael Reaction Condition
Autor: Aly A. Aly, M. S. Amine, A. A. F. Wasfy, M. M. H. Arief, Shafey G. Donia
Publikováno v: Phosphorus, Sulfur, and Silicon and the Related Elements. 177:1359-1368
4-(5,5-Dioxodibenzothiophen-2-yl)-4-oxo-2-butenoic acid ( 1 ) was condensed with compounds containing active methylene groups under Michael reaction conditions to form the Michael adducts 2a-c , 3a-c , and 4a-b . The behavior of Michael adduct toward
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a0d290576538cea9a28374a2dbd92905
https://doi.org/10.1080/10426500211721
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8
REACTIONS WITH α,β-SPIROEPOXY-ALKANONES. PART II. USES OF SPIROOXIRANES FOR THE SYNTHESIS OF CONDENSED HETEROCYCLES WITH POTENTIAL BIOLOGICAL ACTIVITY
Autor: F. A. Gad, Amin F. M. Fahmy, M. S. Amine, H. H. Syed, N. M. Yousif
Publikováno v: Scopus-Elsevier
2-Aryl-1-oxaspiro(2,5)octa-4-ones Ia,b reacted with carbon-disulfide, phenylisocyanate, or phosphorus pentasulfide to yield compounds II, III, IV respectively. The bis-spirodioxane V is produced when compound Ib was heated at 150 °c for 1 hr.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc6fcfdeea7ea981b407dc28b7f1b0af
https://doi.org/10.1080/10426509808032450
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9
REACTIONS WITH α, β-SPIROEPOXY-ALKANONES. PART I. SYNTHESIS AND REACTIONS OF OXASPIRO(2,5)OCTA-4-ONES
Autor: M. S. Amine, F. A. Gad, N. M. Yousif, H. H. Sayed, Amin F. M. Fahmy
Publikováno v: Scopus-Elsevier
2-Aryl-1-oxaspiro(2,5)octa-4-ones Ia,b were synthesized and reacted with thiourea in ethanol to give hydroxy cyclohexanone derivatives IIa,b. Compounds IIa,b were readily cyclised into the corresponding 5-hydroxy quinazolines IIIa,b and their dehydra
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da585d64a1c59e1759051d57c9336f50
https://doi.org/10.1080/10426509608038771
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10
ChemInform Abstract: A Facile One Pot Conversion of Chalcones to Pyrimidine Thione Derivatives. Ring Opening Reactions of Oxiranes Derived from Chalcones
Autor: S. El‐Nagdy, M. S. Amine, Maher A. El-Hashash
Publikováno v: ChemInform. 22
Arylidene 2,5-dimethylacetophenones (1) reacted with thiourea and hydrogen peroxide to give pyrimidinethione (2) and oxirane derivatives (7), respectively. The behaviour of pyrimidinethione (2) towards hydrazine, acetylhydrazines, secondary amines un
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::433ec7af00648ee5bbe1d46e66d1faf3
https://doi.org/10.1002/chin.199121189
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