38405-71-9

Upstream product

• 68-12-2 N,N-dimethyl-formamide 
• 89-33-8 2,4-dihydro-2-phenyl-5-ethoxycarbonyl-3H-pyrazol-3-one 

Downstream Products

• 1227953-43-6 ethyl 5-azido-4-formyl-1-phenyl-1H-pyrazole-3-carboxylate 
• 1639808-85-7 3-chloro-2-phenyl-2H-pyrazolo[3,4-d]pyridazin-7(6H)-one 
• 1639808-86-8 (3-chloro-7-oxo-2-phenylpyrazolo[3,4-d]pyridazine-6-yl)acetic acid ethyl ester 
• 1639808-87-9 2-(3-hydrazinyl-7-oxo-2-phenyl-2H-pyrazolo[3,4-d]pyridazine-6(7H)-yl)acetohydrazide 
• 1639808-96-0 4-(3-chloro-7-oxo-2-phenyl-2,7-dihydro-6H-pyrazolo[3,4-d]pyridazine-6-yl)benzene sulfonamide 
• 1639808-97-1 1-[4-(3-chloro-7-oxo-2-phenyl-2,7-dihydro-6H-pyrazolo[3,4-d]pyridazin-6-yl)phenyl]methanesulfonamide 
• 1639808-98-2 2-[4-(3-chloro-7-oxo-2-phenyl-2,7-dihydro-6H-pyrazolo[3,4-d]pyridazin-6-yl)phenyl]ethanesulfonamide 
• 201735-21-9 ethyl 5-amino-4-carbamoyl-1-phenyl-1H-pyrazole-3-carboxylate 
• 1649463-19-3 ethyl 5-amino-4-imino-1-phenyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidine-3-carboxylate 
• 1649463-20-6 5-amino-4-imino-1-phenyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidine-3-carbohydrazide 
• 1649463-21-7 ethyl 4-amino-1-phenyl-1H-pyrazolo [3, 4-d]pyrimidine-3-carboxylate 
• 1649463-22-8 ethyl 4,5-dihydro-6-(3,4-dimethoxyphenyl)-4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-3-carboxylate 
• 1649463-23-9 ethyl 4,5-dihydro-6-(3-methoxyphenyl)-4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-3-carboxylate 
• 1649463-24-0 ethyl 6-(4-chlorophenyl)-4,5-dihydro-4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-3-carboxylate 

Relevant academic research and scientific papers

Synthesis of pyrazolopyridine 3-carboxylates by Friedlander condensation

(Chemical Equation Presented) A series of 1,3,6-trisubstituted and 1,3,5,6-tetrasubstituted pyrazolo [3,4-b] pyridines 5 have been synthesized by series of reactions on 1-phenyl-3-carboxylate pyrazolone to obtain o-aminoaldehyde, which undergo facile condensation with various a-methylene ketones, nitriles, and esters, furnish fused pyridine derivative in good yield.