1123877-36-0Relevant academic research and scientific papers
Three 4,7-diaryl-2-ethylsulfanyl-pyrazolo[1,5-a][1,3,5]triazines
Insuasty, Henry,Mier, Paola,Suarez, Gina,Low, John N.,Cobo, Justo,Glidewell, Christopher
, p. o27-o30 (2008)
The molecular dimensions of 2-ethylsulfanyl-7-(4-methylphenyl)-4- phenylpyrazolo[1,5-a][1,3,5]triazine, C20H18N 4S, (I), 7-(4-chlorophenyl)-2-ethylsulfanyl-4-phenylpyrazolo[1,5-a] [1,3,5]triazine, C19H15ClN4S, (II), and 4,7-bis(4-chlorophenyl)-2-(ethylsulfanyl)pyrazolo[1,5-a][1,3,5]triazine, C 19H14Cl2-N4S, (III), show evidence for some aromatic delocalization in the pyrazole rings. The conformations adopted by the ethylsulfanyl substituents are different in all three compounds. There are no hydrogen bonds in any of the crystal structures, but pairs of molecules in (II) and (III) are linked into centrosymmetric dimers by π-stacking interactions.
