%0 Journal Article %A Eftekhar, Melika %T Preparation, characterization of graphene oxide nano catalyst functionalized copper-metformin complex and investigation of its catalytic activity in synthesis of tetrahydropyridine derivatives in mild condition %J Journal of applied research in chemisry %V 15 %N 2 %P 62-73 %D 2021 %R 10.30495/jacr.2021.684267 %U https://sanad.iau.ir/fa/Article/1044716