investigation of catalytic activity of pillared-layer ni (ii) metal-organic framework derived nio nanoparticles for aromatization of hantzsch 1,4-dihydropyridines

The pillared-layer metal-organic framework of ni2(btec)(bipy)3.3dmf.2h2o  (btec = 1,2,4,5-benzenetetracarboxylate; bipy = 4,4́-bipydine; dmf =n,ń-dimethylformamide) was prepared, characterized and used as a precursor for preparation of nio nanoparticles. the morphology and structure of nio nanoparticles were characterized by xrd, sem, ft-ir and edx techniques.  it was found that the synthesized   mof and nio nanoparticles catalyze the aromatization of 4-substituted hantzsch 1,4-dihydropyridines (r= ph, me, h) with 100% conversion and 100% selectivity toward the desired products.