Indium(III) Trifluoromethanesulfonate: An Efficient Reusable Catalyst for the Alkynylation-Cyclization of 2-Aminoaryl Ketones and Synthesis of 2,4-Disubstituted Quinolines - Lekhok, Kushal C; Prajapati, Dipak; Boruah, Ramesh C (Synlett, 2008)