الفهرس | Only 14 pages are availabe for public view |
Abstract This thesis aime to study and prepare new Silicon reagents drived from reaction of Tetrachlorosilane with sodium azide , potassium cyanide , absolute ethanol and sodium sulfide and to study their synthetize application in organic synthesis . all these in situ reagents have been used to prepare facile synthesis of some tetrazole or tetrazolinm derivatives , cyanohydrines , coumarin 3 carbonitrile and dibenzospiro pyrane derivatives with expected biological activity . |