85094-06-0

Upstream product

• 94-02-0 ethyl 3-oxo-3-phenylpropionate 
• 108-26-9 3-methyl-2-pyrazoline-5-one 

Downstream Products

• 1000998-51-5 3-[5-methyl-1-(5-trifluoromethyl-[1,3,4]thiadiazol-2-yl)-3-(5-trifluoromethyl-[1,3,4]thiadiazol-2-yloxy)-1H-pyrazol-4-yl]-3-phenylacrylamide 

Relevant academic research and scientific papers

Condensation of pyrazol-5-ones unsubstituted in the position 1 with β-keto esters. Synthesis of pyrano[2,3-c]pyrazol-6-ones

The thermal condensation of β-keto esters and N-unsubstituted pyrazol-5-ones gives good yields of pyrano[2,3-c]pyrazol-6-ones. Other potential routes for the condensation are not realized. The β-diketones react via another scheme to form noncyclic reactio

Pyranopyrazoles. II (1). Synthesis and Reactions of 1H,6H-Pyranopyrazol-6-ones

Various 1H,6H-pyranopyrazol-6-ones (III-XXIII) were obtained from β-keto esters and 1H-pyrazol-5-ones or hydrazines.Nitrations, chlorinations and brominations of these pyranopyrazoles were also carried out giving the corresponding derivatives (XXIV-LXIV).The pyrone ring is the more reactive one by the addition-elimination route.