| 000 | 02518cam a2200337 a 4500 | ||
|---|---|---|---|
| 003 | EG-GiCUC | ||
| 005 | 20250223031656.0 | ||
| 008 | 170301s2016 ua f m 000 0 eng d | ||
| 040 |
_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aM.Sc | ||
| 099 | _aCai01.12.10.M.Sc.2016.Am.S | ||
| 100 | 0 | _aAmna Mohamed Abdella Ali | |
| 245 | 1 | 0 |
_aSynthesis of bis (difunctional) compounds as versatile precursors for Novel Bis heterocycles / _cAmna Mohamed Abdella Ali ; Supervised Ahmed Helmy Mahmoud Elwahy , Ismail Abdelshafy Abdelhamid |
| 246 | 1 | 5 | _aتشييد مركبات ثنائية و متماثلة (ثنائية المجموعة الوظيفية) كبادئات خصبة لمركبات حلقية غير متجانسة جديدة ثنائية و متماثلة |
| 260 |
_aCairo : _bAmna Mohamed Abdella Ali , _c2016 |
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| 300 |
_a90 P. ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Organic Chemistry | ||
| 520 | _aAn efficient and convenient method for the synthesis of bis (4H-chromene-3-carbonitrile) derivatives. The synthetic pathway involves one pot, multi-component reaction of bis- aldehydes, malononitrile, and dimedone in the presence of a catalytic amount of piperidine. A stepwise approach for the synthesis of the target compounds was also investigated. Bis (2- benzylidene-1H-indene)-1,3-(2H)-dione derivatives were obtained as the main products as a result of reaction of the bis(arylidenemalononitriles) with indandione. The anti-influenza H5N1 virus activities of the newly prepared bis-chromene derivatives are also investigated. An efficient and convenient route for the synthesis of novel bis dihydropyrano[3,2- c]chromenes is reported. The synthetic pathway involves one pot, multi-component reaction of bis-aldehydes, malononitrile, and 4-hydroxycoumarin in the presence of pyridine or acetic acid in the presence of sodium acetate. A stepwise approach for the synthesis of the target compounds was also investigated. The structures of all compounds are confirmed based on the different spectral tools | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aBis-arylaldehydes | |
| 653 | 4 | _abis-arylidenemalononitriles | |
| 653 | 4 | _aMulticomponent reactions | |
| 700 | 0 |
_aAhmed Helmy Mahmoud Elwahy , _eSupervisor |
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| 700 | 0 |
_aIsmail Abdelshafy Abdelhamid , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
| 905 |
_aNazla _eRevisor |
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| 905 |
_aSamia _eCataloger |
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| 942 |
_2ddc _cTH |
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| 999 |
_c60038 _d60038 |
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