79424-30-9Relevant academic research and scientific papers
New access to pyrazole, oxa(thia)diazole and oxadiazine derivatives
Hassan, Alaa A.,El-Shaieb, Kamal M.,Shaker, Raafat M.,Doepp, Dietrich
, p. 12 - 19 (2007/10/03)
1,4-Disubstituted thiosemicarbazides 1b-f reacted with ethenetetracarbonitrile (5) in dimethylformamide with formation of 2-substituted 5-phenyl-1,3,4-thiadiazoles 2a-f and 2-substituted 5-phenyl-1,3,4-oxadiazoles 4a-f. Upon addition of 5 to 1c-e in chlorobenzene, 3-amino-2-benzoyl-4,5,5- tricyano-2,5-dihydro-1H-pyrazole- 1-[N-(4-tricyanovinyl)phenyl]carbothioamide (12), 5-benzylamino-, and 5-allylamino-4-benzoyl-2,3-dihydro-[1,3,4]thiadiazol- 2,2-dicarbonitrile (13a,b) and 5-amino-1-benzoylpyrazole-3,4-dicarbonitrile (14) as well as 2-phenyl-4H-[1,3,4]-oxadiazine-5,6-dicarbonitrile (15) were formed. Rationales for the role of the solvent and the conversions observed are presented.
Antifungal activity of new 1,3,4-oxadiazolo[3,2-a]-s-triazine-5,7-diones and their 5-thioxo-7-ones
Mishra, Atma R.,Singh, Shailendra,Wahab, Abdul
, p. 5465 - 5468 (2007/10/03)
N1- and N3-(4-fluorophenyl) ureas (III a-e) were cyclocondensed with ethyl chloroformate and CS2/ KOH to yield 2-aryl-6-(4-fluorophenyl)-1,3,4-oxadiazolo[3,2-a]-s-triazine-5,7-diones (IVa-e) and their 5-thioxo-7-ones (Va-e
Synthesis and Fungitoxicity of New 1,3,4-Oxadiazolo-s-triazine-5,7-diones and Their Thione Analogues
Singh, H.,Misra, A. R.,Yadav, L. D. S.
, p. 1000 - 1002 (2007/10/02)
N1-(5-Aryl-1,3,4-oxadiazol-2-yl)-N3-(4-fluorophenyl)ureas (IIIa-c) on cyclocondensation with ethyl chloroformate and CS2/KOH afford 2-aryl-6-(4-fluorophenyl)-1,3,4-oxadiazolo-s-triazine-5,7-diones (IVa-c) and their 5-thione an
