TY  - BOOK
AU  - Hadeer Mohamed Diab Elhosseny
AU  - Ahmed Helmy Mahmoud Elwahy , 
AU  - Ismail Abdelshafy Abdelhamid , 
TI  - Synthesis of novel heterocyclic compounds utilizing active methylene reagents and thiols as precursors / 
PY  - 2018///
CY  - Cairo : 
PB  - Hadeer Mohamed Diab Elhosseny , 
KW  - 2-aminobenzimidazole
KW  - Dimedone
KW  - Poly(aldehydes)
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Organic Chemistry; Issued also as CD
N2  - Part1: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
UR  - http://172.23.153.220/th.pdf
ER  -