Synthesis of Some New 1,4-Distyrylbenzenes Using Immobilized Palladium Nanoparticles on Silica Functionalized Morpholine as a Recyclable Catalyst - Niknam, Khodabakhsh; Gharavi, Alireza; Nezhad, M. Reza Hormozi; Panahi, Farhad; Sharbati, Mohammad Taghi (Synthesis, 2011)