Hydrolysis of substituted amino-s-triazines with strong mineral acids3 has often been used in our laboratory as an effective aid in the elucidation of their structures. Ample evidence has shown that hot 5O-S5% sulfuric acid will hydrolyze C-amino or imino groups to C-hydroxy or oxo groups while alkyl or aryl substituents on ring nitrogen atoms are
![Triimidazo[1,2-a:1',2'-c:1'',2''-e][1,3,5]triazine,2,3,6,7,10,11-hexahydro-结构式](https://image.chemsrc.com/caspic/164/28584-89-6.png)
