501007-13-2

Upstream product

• 22943-50-6 6-benzyl-4-methyl-3-methylsulfanyl-4H-[1,2,4]triazin-5-one 

Downstream Products

• 501007-00-7 6-benzyl-4-methyl-3-[N'-(4-methyl-benzylidene)-hydrazino]-4H-[1,2,4]triazin-5-one 
• 501006-99-1 6-Benzyl-4-methyl-3-{N'-[1-phenyl-meth-(E)-ylidene]-hydrazino}-4H-[1,2,4]triazin-5-one 

Relevant academic research and scientific papers

Regioselectivity in 1,5-electrocyclization of N-[as-triazin-3-yl]nitrilimines. Synthesis of s-triazolo[4,3-b]-as-triazin-7(8H)-ones

6-Benzyl-3-(arylmethylidenehydrazino)-as-triazin-5(4H)-ones 4 underwent regioselective cyclization upon treatment with either bromine in acetic acid containing sodium acetate or with ferric chloride in refluxing ethanol to give the respective s-triazolo[4,3-b]-as-triazin-7(8H)-ones 7 in overall good yields. The regioselectivity in the studied reactions was elucidated by comparison of 13C NMR spectra of 7 and their methyl derivatives with those of their regioisomers prepared by independent methods.