Zobrazeno 1 - 10 of 23 pro vyhledávání: '"Sami Bassili Awad"'
1
1,4-Cycloaddition of p-Benzoquinone; 1,4-Naphthoquinone and N-Phenylmaleimide to 9-Vinylidenexanthene (or Thioxanthene) Derivatives
Autor: Nashed Ishak Samaan, Nadia Fouad Abdul-Malik, Alfy Badie Sakla, Sami Bassili Awad
Publikováno v: Zeitschrift für Naturforschung B. 36:362-365
13-Substituted naphthene(K 1)xanthene(or thioxanthene)-1,4-dione (4a, b) have been obtained by thermal cycloaddition of p-benzoquinone (2) to 9-vinylidenexanthene(or thioxanthene) derivatives (1 a, b). Reductive acetylation of 4 gives the diacetoxy d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e76c8a15738a7b5f3fdccee182fb0665
https://doi.org/10.1515/znb-1981-0316
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2
Halogenation of Xanthenyl and Thioxanthenylallenes
Autor: Afly Badie Sakla, Sami Bassili Awad, Nadia Fouad Abdul-Malik
Publikováno v: Helvetica Chimica Acta. 62:1872-1877
Reactions of acids with vinylidenexanthenes (or thioxanthenes) 1 and 9-methoxy-9-vinylxanthenes (or thioxanthenes) 8 give xanthene- (or thioxanthene-) 9-spiro-1′-indenes 7. With bromine or sulfuryl chloride they give the corresponding 2′-halogeno
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4488d94322fb693a27c58ccd81f1ee5a
https://doi.org/10.1002/hlca.19790620616
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4
Chemistry of oxaziridines. 3. Asymmetric oxidation of organosulfur compounds using chiral 2-sulfonyloxaziridines
Autor: William H. Watson, Orum D. Stringer, Sami Bassili Awad, J. Galloy, Franklin A. Davis, Robert H. Jenkins
Publikováno v: Journal of the American Chemical Society. 104:5412-5418
Die chiralen Sulfonyloxaziridine (IV) und (V) [dargestellt aus den Sulfonamiden (I) uber die Stufen (III)], (VIa) und (VIb) [analog 19 dargestellt] bewirken bei der asymm. Oxidation von Sulfiden wie z.B. (VII) eine hohere Enantioselektivitat als chir
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e84538c9e26e02b47039cb0153789282
https://doi.org/10.1021/ja00384a028
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6
Addition of Xanthenyl and Thioxanthenyl Halides to Asymmetric Diarylethylenes and Their 2-Halogeno-Derivatives
Autor: Nadia Fouad Abdul-Malik, Alfy Badie Sakla, Wadie Tadros, Sami Bassili Awad
Publikováno v: Helvetica Chimica Acta. 56:1829-1837
Xanthenyl and thioxanthenyl halides added readily to asymmetric diarylethylenes and their 2-halogeno-derivatives to give after dehydrohalogenation 1,1-diaryl-2-[xanthen(orthioxanthen)-9-yl]-ethylenes and 1,1-diaryl-2-halogeno-2-[xanthen(or thioxanthe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9fae34d6169539cd7ddc604612361307
https://doi.org/10.1002/hlca.19730560602
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7
Pinacol-Pinacolone Rearrangement of 1, 2-Di-(p-methoxyphenyl)-ethane-1, 2-diol and Bis-(4-methoxyphenyl)-acetaldehyde in Acid Media
Autor: Abdul-Aziz Amine Helmy, Sami Bassili Awad, Alfy Badie Sakla, Wadie Tadros
Publikováno v: Helvetica Chimica Acta. 55:2808-2812
1, 2-Di-(p-methoxyphenyl)-ethane-1, 2-diol gave in acid media bis-(4-methoxy-phenyl)-acetaldehyde, 4-4′-dimethoxy-deoxybenzoin, and 1, 2-di-(p-methoxyphenyl)-ethylene oxide; their respective yields being influenced by at least 3 factors: (i) the ac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::718d0b07691ac00b2f310745f5ba8cdc
https://doi.org/10.1002/hlca.19720550810
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8
Pyrolysis of organic compounds. 1. Flash vacuum pyrolysis (FVP) of coal-model organic sulfides and their S-oxides
Autor: Thomas G. Squires, Sami Bassili Awad, Thomas W. Panunto, Robert L. Billmers, Franklin A. Davis
Publikováno v: The Journal of Organic Chemistry. 49:1228-1230
The primary pyrolysis reaction of sulfides, sulfoxides, and sulfones (1-3), in the gas phase at 500-900 /sup 0/C, is homolytic cleavage of the C-SO/sub n/ bond. The order of reactivity, sulfoxide >> sulfone > sulfide, is consistent with the relative
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4eef77fa811478d53872766ac1b70b79
https://doi.org/10.1021/jo00181a019
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9
Studies on Xanthenyl and Thioxanthenyl Derivatives. Reactions of Xanthenyl and Thioxanthenyl Halides with Substituted-Ethylenes
Autor: Sami Bassili Awad, Nadia Fouad Abdul-Malik, Sadek Elsayed Abdou
Publikováno v: Bulletin of the Chemical Society of Japan. 48:2200-2202
Xanthenyl and thioxanthenyl chlorides (1) were added to 1,1-bis-(p-alkoxyphenyl)-2-substituted-ethylenes (2) to give 1,1-bis-(p-alkoxyphenyl)-2-substituted-2-[xanthen(or thioxanthen)-9-yl]ethylenes...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32c90d22fc9e1f310236752fb907f624
https://doi.org/10.1246/bcsj.48.2200
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10
ChemInform Abstract: THE ALDEHYDE KETONE REARRANGEMENT. REARRANGEMENT OF BIS(4-METHOXYPHENYL)ACETALDEHYDE INTO 4,4′-DIMETHOXYDEOXYBENZOIN
Autor: Wadie Tadros, Raouf Ramzi Tadros, Sami Bassili Awad
Publikováno v: Chemischer Informationsdienst. 7
The formyl carbonyl group in bis(4-methoxyphenyl)-acetaldehyde does not contribute to the formation of the carbonyl group in 4,4′-dimethoxydeoxybenzoin when the former rearranges to the latter by treatment with 50% (w/w) sulfuric acid.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b456262518778e5bda6849d60fae415
https://doi.org/10.1002/chin.197629117
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