TY - JOUR AU - Maghsoodlou, Malek Taher AU - Masoumnia, Amin AU - Mousavi, Mir Rasul AU - Hazeri, Nourollah AU - Aboonajmi, Jasem AU - Habibi-Khorasani, Sayyed Mostafa AU - Kiaee, Shiva TI - A green protocol for synthesis of pyran annulated hetrocyclic systems using Na2SO4 as an efficient catalyst JO - Iranian Journal of Catalysis VL - 5 IS - 2 SP - 169 EP - 174 PY - 2015 DO - ER -