green synthesis and investigation of antioxidant activity of new quinoline derivatives

New derivatives of furo[2,3-f]quinoline derivatives in high yields using multicomponent reaction of the  2-amino-4-hydroxyacetophenone,  isopropenylacetylene,  aldehydes  and  malononitrile  or  ethyl cyanoacetate in the presence of catalytic amounts of fe3o4/kf/clinoptilolite@mwcnts magnetic nanocomposites  using  ionic  liquid  as  green  solvent  at  room  temperature  were  synthesized.  this catalyst could be employed several times in these reactions and have the main role in the yield of the product. the synthesized compounds have nh group in their structure and for this reason, have good  antioxidant  activity. our  procedure  for  preparation  of furo[2,3-f]quinoline  derivatives has some advantages such as low reaction time, the product with high yields, and simple separation of catalyst and products.