1246403-89-3Relevant academic research and scientific papers
Investigation into the regioisomeric composition of some tetrazolopyrimido[4,5- E] [1,3,4] thiadiazines: 1H-NMR studies
Nikpour, Mohsen,Sabaghian, Ali Javid,Atashi, Shirin,Chermahini, Alireza Najafi
, p. 958 - 962 (2012/11/07)
Treatment of 7-chloro-1-phenylpyrimido[4,5-e][1,3,4]thiadiazines with hydrazine in boiling ethanol gave corresponding 7-hydrazinyl derivatives. Diazotization of the latter compounds acheived a mixture of 5H-tetrazolo[1',5': 1,2] pyrimido[4,5-e][1,3,4]thiadiazine and 9Htetrazolo[ 5',1':2,3]pyrimido[4,5- e][1,3,4]thiadiazines. Ratio of these two group of products determined by 1H-NMR studies and no significant preference was observed for their formation. Efforts for separation of the products were unsuccessful and its reason is discussed.
Synthesis of new (Pyrimido[4,5-e][1,3,4] thiadiazin-7-yl)hydrazine derivatives
Azizian, Javad,Miri, Ramin,Mohammadi, Mohammad Kazem,Sheikholeslami Farahani, Fatemeh,Hosseini, Javad,Nikpour, Mohsen
experimental part, p. 1782 - 1787 (2010/09/09)
New (pyrimido[4,5-e][1,3,4]thiadiazin-7-yl)hydrazines were synthesized via the cyclocondensation of alkyl-2-phenylhydrazinecarbodithioates as bidentate nucleophiles with 5-bromo-2,4-dichloro-6-methylpyrimidine as an electrophile and further replacement of
