16258-98-3Relevant academic research and scientific papers
Reaction of 4-Aryl-1,2,4-triazines with Hydrazine
Ibrahim, Y. A.,Eid, M. M.,Badawy, M. A.,Abdel-Hady, S. A. L.
, p. 953 - 956 (2007/10/02)
The action of hydrazine on 3,5-dioxo-4-aryl-2,3,4,5-tetrahydro-1,2,4-triazines gave 4-amino-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazines.The intermediates of this reaction were isolated and shown to be α-ketoacidhydrazide 4-arylsemicarbazones and not the α-ketoanilidecarbohydrazones.The relative rates of cyclization of the latter isomeric derivatives provide a support for a proposed intermediates which were not isolated in the reaction of 3-mercapto and 3-methylmercapto-4-aryl-5-oxo-4,5-dihydro-1,2,4-triazines with hydrazine.
