156216-19-2

Upstream product

• 21719-63-1 N-[1-(2,4-Dichloro-phenyl)-meth-(E)-ylidene]-N'-phenyl-hydrazine 
• 100-63-0 phenylhydrazine 
• 156216-08-9 C₁₄H₉Cl₃N₂O 

Relevant academic research and scientific papers

New General Synthesis of Tetrahydro-1,2,4,5-tetrazin-3(2H)-one Derivatives and Stable 3,4-Dihydro-3-oxo-1,2,4,5-tetrazin-1(2H)-yl Radical Derivatives

Reactions of 2-chloroformylhydrazones of aromatic aldehydes or ketones 2 with various hydrazines were converted to monocarbonohydrazone derivatives 3 or 5 and/or tetrahydro-1,2,4,5-tetrazin-3(2H)-one derivatives 6,7.By oxidation with lead dioxide, compounds 6 were transformed into stable 3,4-dihydro-3-oxo-1,2,4,5-tetrazin-1(2H)-yl radical derivatives 8.