TY - BOOK AU - Ahmed Abdelhamid Mohammed Ahmed AU - Ahmed Eltaher Mahmoud , AU - Mohammed Abdelaziz Abdelazim Elneairy , AU - Sadek Elsayed Abdou , TI - Synthesis and characterization of some new bis polyfunctionalized fused heterocyclic derivatives containing nitrogen and/or sulfur / PY - 2011/// CY - Cairo : PB - Ahmed Abdelhamid Mohammed Ahmed , KW - Bis pyrazoles KW - Bis pyridone KW - Bis thiophenes N1 - Thesis (Ph.D.) - Cairo University - Faculty of Pharmacy - Department of Organic Chemistry; Issued also as CD N2 - This work has been carried out to investigate the chemical reactivity and synthetic potentiality of bis cyanoacetohydrazide 3 and bis cyanoacetamide 33a,b derivatives via their reactions with several aldehydes to give the bis yeildene and bis coumarin derivatives. The bis yeildene reacted with active methylene containing compounds or hydrazine hydrate to afford the corresponding bis pyridone and bis pyrazole derivatives respectively UR - http://172.23.153.220/th.pdf ER -