%0 Journal Article %A Zohreh Shobeiri %A Mehrdad Pourayoubi %A Akbar Heydari %A Teresa Mancilla Percino %A Marco A. Leyva Ramírez %T Ultrasound assisted synthesis of Cs2.5H0.5PW12O40: An efficient nano-catalyst for preparation of β-amino ketones via aza-Michael addition reactions %J Comptes Rendus. Chimie %D 2011 %P 597-603 %V 14 %N 6 %I Elsevier %R 10.1016/j.crci.2011.03.002 %G en %F CRCHIM_2011__14_6_597_0