%0 Journal Article %T Copper Perchlorate Hexahydrate: An Efficient Catalyst for the Green Synthesis of Polyhydroquinolines under Ultrasonication %A Saurabh Puri %A Balbir Kaur %A Anupama Parmar %A Harish Kumar %J ISRN Organic Chemistry %D 2011 %I Hindawi Publishing Corporation %R 10.5402/2011/948685 %U http://dx.doi.org/10.5402/2011/948685