ResearchBib Share Your Research, Maximize Your Social Impacts
Sign for Notice Everyday Sign up >> Login

An efficient one-pot, four-component synthesis of a series of pyrazolo [3,4-b] pyridines in the presence of magnetic LDH as a nanocatalyst

Journal: Asian Journal of Nanoscience and Materials (Vol.3, No. 3)

Publication Date:

Authors : ; ; ;

Page : 238-250

Keywords : Pyrazolo [3; 4-b] pyridines Arylglyoxals 1-Aryl-3-methyl-1H-pyrazol-5(4H) one Nanocatalyst One-pot;

Source : Downloadexternal Find it from : Google Scholarexternal


In this research study, one-pot, four-component reaction of 3-aryl-3-oxopropanenitriles, 1-aryl-3-methyl-1H-pyrazol-5 (4H) one, arylglyoxals and ammonium acetate using green solvent systems and different catalysts under the reflux conditions afforded a series of the corresponding 4-aroyl-3-methyl-1,6-diaryl-1H-pyrazolo [3,4-b] pyridine-5-carbonitrile derivatives. The best yields (70-85%) were obtained using the metal oxide silica based-matal bifunctional LDH (layered double hydroxide) as a magnet nanocatalyst in EtOH/H2O (1:1) under the reflux conditions. This protocol provided mild reaction conditions, good yields, simple workup procedure, easy preparation of nanocatalyst and, products to structurally diverse bicyclic pyrazolo [3,4-b] pyridines, demonstrating biological and pharmacological activities.

Last modified: 2020-08-07 16:37:39