TY  - GEN
AU  - Ali Ahmed Hassan AlAtoom
AU  - Abdou Osman Abd El Hamid , 
TI  - Some New approaches for the synthesis of heterocyclic derivatives containing nitrogen and / or sulfur of expected biological activity / 
PY  - 2005///
CY  - Cairo : 
PB  - Ali Ahmed Hassan AlAtoom , 
KW  - 1 , 2 , 4 - Triazoles
KW  - 2 , 3 - dihydro - 1 , 3 , 4 - thiadiazoles
KW  - Pyrazolo[4 , 3 - d]Pyrimidines
KW  - Pyrazolo[4 , 5 - d]Triazolino[4 , 5 - a]Pyrimidines
N1  - Thesis (PH.D.) - Cairo University - Faculty Of Science - Department Of Organic Chemistry; Issued also as CD
N2  - 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
UR  - http://172.23.153.220/th.pdf
ER  -