| 000 | 02600cam a2200337 a 4500 | ||
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| 003 | EG-GiCUC | ||
| 005 | 20250223032629.0 | ||
| 008 | 201115s2020 ua d 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.2020.Mi.U | ||
| 100 | 0 | _aMirna Talaat Helmy Saadan | |
| 245 | 1 | 0 |
_aUtility of active halogenated compounds in synthesis of some fused heterocyclic compounds with expected biological activities / _cMirna Talaat Helmy Saadan ; Supervised Hamdi M. Hassaneen , Fatma Mohamed saleh ali |
| 246 | 1 | 5 | _aأستخدام المركبات الهالوجينيه النشطة فى تحضير بعض المركبات الملتحمة غيرمتجانسة الحلقة و المتوقع لها نشاطات بيولوجيه |
| 260 |
_aCairo : _bMirna Talaat Helmy Saadan , _c2020 |
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| 300 |
_a113 P . : _bcharts ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Organic Chemistry | ||
| 520 | _aThe present dissertation includes the results of the synthesis of new heterocyclic compounds using N,2-diaryldiazene-1-carbohydrazonoyl chlorides and other hydrazonoyl halides. The first part of the thesis concerned with using of N,2-diaryldiazene-1-carbohydrazonoyl chlorides in synthesis of novel 5-phenyldiazenyl-1,3,4-thiadiazole derivatives, 3-phenyldiazenyl spiro heterocycles and 3-phenyldiazenyl-1H-pyrazole derivatives. For this purpose reaction of 2- ((methylthio)carbonthioyl)hydrazones 7 with N,2-diaryldiazene-1-carbohydrazonoyl chlorides 1,2 at room temperature in absolute ethanol in the presence of triethylamine afforded the corresponding 1,3,4-thiadiazoles 11,12 (Scheme 1). Also, the latter products 11,12 were prepared by treatment of 2-hydrazono-3-aryl-5-(aryldiazenyl)-2,3-dihydro-1,3,4-thiadiazoles 9,10 with the appropriate aldehydes and ketones in 2-propanol in the presence of few drops of hydrochloric acid at reflux. The latter products 9,10 were prepared via stirring of methyl hydrazinecarbodithioate 6 with N,2-diaryldiazene-1-carbohydrazonoyl chlorides 1,2 at room temperature in absolute ethanol in the presence of triethylamine (Scheme 1) | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aChloroformazans | |
| 653 | 4 | _aCycloaddition reaction | |
| 653 | 4 | _aMethyl hydrazinecarbodithioate | |
| 700 | 0 |
_aFatma Mohamed saleh ali , _eSupervisor |
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| 700 | 0 |
_aHamdi M. Hassaneen , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
| 905 |
_aAmira _eCataloger |
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| 905 |
_aNazla _eRevisor |
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| 942 |
_2ddc _cTH |
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| 999 |
_c78763 _d78763 |
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