53249-98-2

Upstream product

• 81238-99-5 ethyl 2-benzenehydrazonyl-3-oxopropanoate 
• 100-63-0 phenylhydrazine 
• 201595-00-8 ethyl 2,3-dioxopropanoate 
• 499784-64-4 (Z)-2-chloro-3-methylaminoacrylic acid ethyl ester 
• 100-34-5 benzene diazonium chloride 
• 14214-10-9 ethyl diazopyruvate 
• 72358-76-0 phenylhydrazine acetate 

Downstream Products

• 75640-08-3 2,3-bis-phenylhydrazono-propionic acid 
• 16335-50-5 1-phenyl-2-pyrazoline-4,5-dione 4-phenylhydrazone 

Relevant academic research and scientific papers

Chemistry of diazopolycarbonyl compounds: Vi.* reactions of 3-diazo-2-oxopropionic acid derivatives with phenylhydrazine

3-Diazo-2-oxopropionic acid esters and amides react with phenylhydrazine to afford osazones. The structure of the products and mechanism of their formation are discussed. ? Deceased. * For communication V, see [1].

Synthesis and heterocyclization of osazones of carbonyl-substituted glyoxals

Enolates of α-chloro-β-oxoaldehydes react with arylhydrazines in the presence of acetic acid, forming osazones of carbonyl-substituted glyoxals. The same osazones are obtained by the reaction of β-oxo-α-chlorenamines with arylhydrazines. Under conditions