98669-82-0

Upstream product

• 613-94-5 benzoic acid hydrazide 
• 815-57-6 3-Methyl-2,4-pentanedione 

Downstream Products

• 130478-84-1 2,2-Dichloro-1-phenyl-3-(3,4,5-trimethyl-pyrazol-1-yl)-propane-1,3-dione 
• 130478-78-3 Benzoic acid 2,2-diphenyl-1-(3,4,5-trimethyl-pyrazol-1-yl)-vinyl ester 
• 130478-98-7 2-(4-Chloro-phenoxy)-1-(3,4,5-trimethyl-pyrazol-1-yl)-ethanone 
• 130478-95-4 2-(4-Chloro-phenoxy)-1-phenyl-3-(3,4,5-trimethyl-pyrazol-1-yl)-propane-1,3-dione 
• 130478-87-4 2,2-Dimethyl-1-phenyl-3-(3,4,5-trimethyl-pyrazol-1-yl)-propane-1,3-dione 
• 130478-81-8 Benzoic acid 2-methyl-1-(3,4,5-trimethyl-pyrazol-1-yl)-propenyl ester 
• 130502-09-9 Benzoic acid (Z)-2-phenoxy-1-(3,4,5-trimethyl-pyrazol-1-yl)-vinyl ester 
• 130478-92-1 2-Phenoxy-1-phenyl-3-(3,4,5-trimethyl-pyrazol-1-yl)-propane-1,3-dione 

Relevant academic research and scientific papers

Cu1.5PMo12O40-catalyzed condensation cyclization for the synthesis of substituted pyrazoles

A convenient and direct approach has been developed for the preparation of pyrazole derivatives by the condensation cyclization of hydrazines/hydrazide and 1,3-diketones in the presence of Cu1.5PMo12O40 (0.33?mol%) under mild conditions (r.t.-60?°C, 10–30?min). Notably, the reaction was found to be scalable as 99% yield was obtained when the reaction was performed at a 5-mmol scale. This solvent-free and halogen-free catalytic system represents an effective economic and environmentally friendly method for the construction of pyrazoles.