134846-83-6

Upstream product

• 134846-82-5 4,6-dimethyl-1pyrazolo<3,4-b>pyridine-3-yl-mercaptoacetic hydrazide 
• 123-11-5 4-methoxy-benzaldehyde 
• 134778-25-9 4,6-dimethyl-1H-pyrazolo[3,4-b]pyridine-3-diazonium chloride 
• 134310-24-0 (4,6-Dimethyl-1H-pyrazolo[3,4-b]pyridin-3-ylsulfanyl)-acetic acid ethyl ester 
• 134310-20-6 4,6-dimethyl-1pyrazolo<3,4-b>pyridine-3-thiol 

Relevant academic research and scientific papers

Synthesis of Some Pyrazolopyridine Sulphonamide Derivatives

The diazonium salt of 3-aminopyrazolopyridine when treated with SO2 and CuCl2 produces the corresponding sulphonyl chloride.The sulphonyl chloride easily reacts with hydrazine hydrate, ammonia, aromatic or heterocyclic amines to produce the corresponding