000 02391cam a2200337 a 4500
003 EG-GiCUC
005 20250223032227.0
008 190316s2018 ua f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.12.10.M.Sc.2018.Ha.S
100 0 _aHadeer Mohamed Diab Elhosseny
245 1 0 _aSynthesis of novel heterocyclic compounds utilizing active methylene reagents and thiols as precursors /
_cHadeer Mohamed Diab Elhosseny ; Supervised Ahmed Helmy Mahmoud Elwahy , Ismail Abdelshafy Abdelhamid
246 1 5 _aتشييد مركبات حلقية غير متجانسة جديدة باستخدام مواد محتوية على مجموعة الميثيلين النشطة و الثيولات كبادئات اولية
260 _aCairo :
_bHadeer Mohamed Diab Elhosseny ,
_c2018
300 _a154 P. ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Organic Chemistry
520 _aPart1:A new series of poly(tetrahydrobenzimidazo[2,1-b]quinazolin-1(2H)-ones) was synthesized using a multicomponent reaction of poly(aldehydes), dimedone and 2-aminobenzimidazole in DMF under conventional heating as well as under microwave irradiation.Part 2:The synthetic utility of 3-thioxo-1,2,4-triazin-5-ones 1 and4-amino-3-mercapto-1,2,4-triazin-5(4H)-ones 2 as building blocks for novel bis- and poly(1,2,4-triazines) via alkylation with the corresponding bis- and poly(halo)compounds was investigated. Prediction of the site of alkylationhas been confirmed using spectroscopic data.The reactivity of the novel bis-amines towards aromatic mono- and bis(aromatic aldehyde) has also been investigated.Keywords:Poly(aldehydes),dimedone, 2-aminobenzimidazole,cyclocondensation, Michael addition, poly(alkylation), poly(tetrahydrobenzimidazoquinazolinone), 3-thioxo-1,2,4-triazin-5-one, 4-amino-3-mercapto-1,2,4-triazin-5(4H)-one, alkylation, bis-triazine, poly-triazine, condensation
530 _aIssued also as CD
653 4 _a2-aminobenzimidazole
653 4 _aDimedone
653 4 _aPoly(aldehydes)
700 0 _aAhmed Helmy Mahmoud Elwahy ,
_eSupervisor
700 0 _aIsmail Abdelshafy Abdelhamid ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c70861
_d70861