52217-37-5Relevant academic research and scientific papers
Microwave-assisted one-pot synthesis in water of carbonylpyrazolo[3,4-: B] pyridine derivatives catalyzed by InCl3 and sonochemical assisted condensation with aldehydes to obtain new chalcone derivatives containing the pyrazolopyridinic moiety
Polo, Efrain,Ferrer-Pertuz, Karoll,Trilleras, Jorge,Quiroga, Jairo,Gutiérrez, Margarita
, p. 50044 - 50055 (2017)
Pyrazolo[3,4-b]pyridine derivatives have been synthesized via one-pot condensation of 3-methyl-1-phenyl-1H-pyrazolo-5-amine (1), formaldehyde (as paraformaldehyde) (2) and β-diketones (3) under microwave irradiation in aqueous media catalyzed by InCl3. This process has been found to be useful in the preparation of new N-fused heterocycle products in good to excellent yields. Further treatment of pyrazolopyridines (4a and 4e) with aldehyde aromatics (5a-l) afforded chalcone analogs.
Synthesis of newly substituted pyrazoles and substituted pyrazolo[3,4-b]pyridines based on 5-amino-3-methyl-1-phenylpyrazole
El-Emary, Talaat I.
, p. 507 - 518 (2008/02/11)
The reaction of the aminopyrazole 1 with benzenesulfonyl chloride, arenediazonium salt, chloroacetyl chloride, ethoxy methyleneamlononitrile and with ethyl 2-cyano-3-ethoxyacrylate gave the substituted 3-methyl-1- phenylpyrazole 2-5a,b. Compound 5b was cy
