83715-56-4

Upstream product

• 89569-87-9 4-Amino-3-methylsulfanyl-6-((E)-2-p-tolyl-vinyl)-4H-[1,2,4]triazin-5-one 
• 83715-73-5 3-Methylsulfanyl-6-(2-oxo-2-p-tolyl-ethyl)-4H-[1,2,4]triazin-5-one 
• 89569-77-7 6-β-p-tolylvinyl-3-mercapto-5-oxo-2,5-dihydro-1,2,4-triazine 
• 89569-85-7 4-Amino-3-mercapto-6-((E)-2-p-tolyl-vinyl)-4H-[1,2,4]triazin-5-one 
• 89569-83-5 3-Mercapto-6-(2-oxo-2-p-tolyl-ethyl)-2H-[1,2,4]triazin-5-one 
• 123333-23-3 (E)-4-(p-Tolyl)-2-oxo-3-butenoic acid 
• 5814-37-9 ethyl-4-(4-methylphenyl)-2,4-dioxobutyrate 
• 55558-81-1 4-(4-methylphenyl)-2,4-dioxobutanoic acid 
• 89569-80-2 6-p-Tolyl-thieno[2,3-e][1,2,4]triazine-3-thiol 
• 74-88-4 methyl iodide 
• 83715-78-0 3-Methylsulfanyl-6-((E)-2-p-tolyl-vinyl)-2H-[1,2,4]triazin-5-one 

Downstream Products

• 83715-61-1 3-Piperidin-1-yl-6-p-tolyl-thieno[2,3-e][1,2,4]triazine 

Relevant academic research and scientific papers

Reaction of 4-Amino-1,2,4-triazines with Phosphorus Pentasulfide. Deamination During Aromatization

Synthesis of several derivatives of thieno-1,2,4-triazines has been achieved via the action of phosphorus pentasulfide on 6-vinyl- or 6-acylmethyl-5-oxo-1,2,4-triazine derivatives.During these investigations interesting synthetically useful functions for phosphorus pentasulfide in pyridine were observed, among which the deamination of certain N-amino heterocycles is unprecedented.

Synthesis of Thieno-1,2,4-triazine

3-Methylmercapto-5-oxo-6-vinyl- and 2-methyl-3-mercapto-5-oxo-6-vinyl-2,5-dihydro-1,2,4-triazines were readily converted into the corresponding thieno-1,2,4-triazine in one step by the action of phosphorus pentasulfide in pyridine. 4-Methyl-3-merca