Some New approaches for the synthesis of heterocyclic derivatives containing nitrogen and / or sulfur of expected biological activity /

Ali Ahmed Hassan AlAtoom

Some New approaches for the synthesis of heterocyclic derivatives containing nitrogen and / or sulfur of expected biological activity / بعض الاتجاهات لتشييد مشتقات غيرمتجانسة الحلقة محتوية على الكبريت اوالنيتروجين اوالاثنين معا متوقع لها نشاط بيولوجي Ali Ahmed Hassan AlAtoom ; Supervised Abdou Osman Abd El Hamid - Cairo : Ali Ahmed Hassan AlAtoom , 2005 - 192P : charts ; 30cm

Thesis (PH.D.) - Cairo University - Faculty Of Science - Department Of Organic Chemistry

This work has been carried out to investigate : 1 , 2 , 4 - Triazoles , 2 , 3 - dihydro - 1 , 3 , 4 - thiadiazoles , 1 , 2 , 4 - triazolino[4 , 3 - a] - pyrimidines were synthesized via reaction of hydrazonoyl halides with each of 2H - chromene - 2 - thione , alkyl carbodithioate and pyrimidine - 2 - thione derivatives , respectively



1 , 2 , 4 - Triazoles 2 , 3 - dihydro - 1 , 3 , 4 - thiadiazoles Pyrazolo[4 , 3 - d]Pyrimidines Pyrazolo[4 , 5 - d]Triazolino[4 , 5 - a]Pyrimidines
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