139455-65-5

Upstream product

• 99-92-3 p-aminobenzophenone 
• 1694-29-7 3-chloropentane-2,4-dione 
• 3283-79-2 4-acetylphenyldiazonium chloride 

Downstream Products

• 488830-04-2 C₁₉H₁₈N₆O₂S 
• 1030624-66-8 2-[(4-acetylphenyl)hydrazono]-3-methyl-7-phenyl-2H-imidazo[2,1-b][1,3,4]thiadiazine 
• 1426561-99-0 4-chlorobenzaldehyde N-[1-(4-acetylphenyl)-3-acetyl-4-cyanopyrazol-5-yl]hydrazone 
• 139455-69-9 3-Acetyl-1-(4-acetyl-phenyl)-4,5-dihydro-1H-[1,2,4]triazin-6-one 

Relevant academic research and scientific papers

Synthesis and tautomeric structure of 7-arylhydrazono-7H-[1,2,4]triazolo[3,4-b]-[1,3,4]thiadiazines

Two synthetic approaches were developed for the title compounds 8a-g via coupling of diazotized anilines with 7-acetyl-6-methyl-3-phenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine 7, and reaction of N-aryl 2-oxopropanehydrazonoyl chlorides 9 with 4-omino

HETEROCYCLES FROM NITRILE IMINES. PART IV. CHIRAL 4,5-DIHYDRO-1,2,4-TRIAZIN-6-ONES

The reaction of nitrile imines (II) with α-amino esters (III) proceeds with no detectable racemization and constitutes a convenient synthetic route to 4,5-dihydro-1,2,4-triazin-6-ones (IV).Permangamate oxidation of heterocycles (IV) affords the corresponding 1,2,4-triazin-6-ones (V).The reaction of (II) with β-amino esters gives the respective acyclic amidrazone adducts (VI).