%0 Journal Article %A Maghsoodlou, Malek Taher, Masoumnia, Amin, Mousavi, Mir Rasul, Hazeri, Nourollah, Aboonajmi, Jasem, Habibi-Khorasani, Sayyed Mostafa, Kiaee, Shiva %T A green protocol for synthesis of pyran annulated hetrocyclic systems using Na2SO4 as an efficient catalyst %J Iranian Journal of Catalysis %V 5 %N 2 %P 169-174 %D 2015 %R %U https://sanad.iau.ir/fa/Article/1013026