%0 Journal Article %T Synthesis of 1H,7H,12bH-Pyrano[3’,4’: 5,6]pyrano[3,4-c][1]benzopyran-1- one via Domino Knoevenagel/Hetero-DielsAlder Reaction with Theoretical Investigations %A Malihe Javan Khoshkholgh %A Housaindokht, Mohammad Reza %A Saeed Balalaie %A Mohammad Reza Bozorgmehr %A Hamid Reza Bijanzadeh %J Helvetica Chimica Acta %@ 0018-019X %D 2012