109334-48-7

Upstream product

• 98-88-4 benzoyl chloride 
• 40887-80-7 3-bromophenylhydrazine 

Downstream Products

• 109334-60-3 2-(3-Bromo-phenyl)-4-(2-nitro-phenyl)-5-phenyl-2H-pyrazole-3-carboxylic acid methyl ester 
• 109334-57-8 1-(3-Bromo-phenyl)-5-(2-nitro-phenyl)-3-phenyl-1H-pyrazole-4-carboxylic acid methyl ester 
• 109334-76-1 1-(3-Bromo-phenyl)-5-methyl-3-phenyl-1,5-dihydro-pyrazolo[4,3-c]quinolin-4-one 
• 109334-69-2 1-(3-Bromo-phenyl)-3-phenyl-1,5-dihydro-pyrazolo[4,3-c]quinolin-4-one 
• 109334-80-7 5-Methyl-1,3-diphenyl-3,5-dihydro-pyrazolo[3,4-c]quinolin-4-one 
• 109334-73-8 1,3-Diphenyl-3,5-dihydro-pyrazolo[3,4-c]quinolin-4-one 

Relevant academic research and scientific papers

Synthesis of Spirobidihydropyrazole through Double 1,3-Dipolar Cycloaddition of Nitrilimines with Allenoates

The double 1,3-dipolar cycloaddition of allenoates with nitrilimines has been achieved under mild reaction conditions, affording a variety of spirobidihydropyrazoles in moderate to excellent yields with excellent diastereoselectivities. The reaction diastereoselectively constructs double dihydropyrazole moieties and two chiral centers including a spiro carbon center.