73672-61-4

Upstream product

• 73672-59-0 5-Methyl-4-(3-oxo-1,3-diphenyl-propyl)-2-phenyl-2,4-dihydro-pyrazol-3-one 
• 89-25-8 edaravone 
• 94-41-7 benzalacetophenone 
• 78121-22-9 3-Methyl-1,4,6-triphenyl-1,4-dihydro-pyrano[2,3-c]pyrazole 

Relevant academic research and scientific papers

Synthesis and some transformations of 4H-pyrano[3,2-d]pyrazoles

The ability of the amide carbonyl group of the pyrazolone ring to participate in the heterocyclization of oxopropyl-5-pyrazolones under the influence of polyphosphoric acid (PPA) or phosphorus polysulfide in dioxane with the formation of 4H-pyrano[ 3,2-d]

PREPARATION AND IONIC HYDROGENATION OF SUBSTITUTED 4-(3-OXOPROPYL)-5-PYRAZOLONES

4-(3-Oxopropyl)-5-pyrazolone derivatives were obtained under mild conditions of alkaline catalysis by condensation of 1-phenyl-3-methyl-5-pyrazolone and substituted chalcones.During ionic hydrogenation of the products they undergo heterocyclization with t