39512-95-3

Upstream product

• 79994-51-7 5-methyl-4-phenylpyrazolin-3-one sodium salt 

Downstream Products

• 1239915-59-3 diethyl 2-(4-amino-4,5-dihydro-3-methyl-5-oxo-4-phenylpyrazol-1-yl)but-2-enedioate 
• 1239915-58-2 diethyl 4-methyl-5-phenyl-1H-pyrrole-2,3-dicarboxylate 
• 1239915-51-5 diethyl 2-(4,5-dihydro-3-methyl-5-oxo-4-phenyl-1H-pyrazol-4-ylamino)maleate 
• 1239915-50-4 4-amino-1-benzyl-3-methyl-4-phenyl-1,4-dihydropyrazol-5-one 

Relevant academic research and scientific papers

1-Aminopyrazolin-5-ones. Synthesis and reactivity

A synthesis of 1-aminopyrazolin-5-ones (I) by chloramine attack on the 2-benzylpyrazolones (IV d-e) has been accomplished.Nucleophilic substitution reactions of aminopyrazolones (I) are investigated; with 1,4-diketones, N,N'-pyrrolylpyrazolones (XVIIa-c)