71290-77-2

Upstream product

• 4149-06-8 3-amino-1-phenyl-2-pyrazolin-5-one 
• 675-09-2 4,6-Dimethyl-2-pyron 
• 71-36-3 butan-1-ol 
• 675-10-5 4-hydroxy-6-methyl-2-pyron 

Downstream Products

• 100714-43-0 2-amino-4,6-dimethyl-nicotinic acid anilide 
• 1204822-77-4 1-(2-bromoethyl)-4,6-dimethyl-2-phenyl-1,2-dihydropyrazolo[3,4-b]pyridin-3-one 
• 1266714-08-2 1-allyl-4,6-dimethyl-2-phenyl-1,2-dihydro-1H-pyrazolo[3,4-b]pyridin-3-one 

Relevant academic research and scientific papers

Condensation of 2-pyrone with 3-aminopyrazolone. A novel synthesis of pyrazolo[3,4-b]pyridines

A simple route to the preparation of new heterocyclic systems: pyrazolo [3,4-b] pyridines from the easily available 2-pyrone and 3-aminopyrazolone. The structure of the compounds and the mechanism of their formation are reported.

Synthesis of new pyrazolo[3,4-b]pyridin-3-ones and pyrazolo[1,5-a] pyrimidin-2(1H)-one and study of the pyrazolic nitrogen reactivity

A convenient route to the synthesis of pyrazolo[3,4-b]pyridin-3-one and pyrazolo[1,5-a]pyrimidin-2(1H)-one via condensation of 3-amino-1- phenylpyrazolin-5-one with 2-pyrone derivatives followed by the alkylation of prepared compounds is described. Severa

Synthesis of new compounds containing the pyrazolo[3,4-b]pyridine-3-one subunit

(Chemical Equation Presented) A convenient route for the synthesis of pyrazolo[3,4-b]pyridine-3-ones via condensation of 3-amino-1-phenylpyrazolin-5- one with 4-hydroxy-6-methylpyran-2-one is described. The pyrazolo[3,4-b] pyridine-3-one isomers obtained