Heteroannulation of 3-Bis(methylthio)acrolein with Aromatic Amines - A Convenient Highly Regioselective Synthesis of 2-(Methylthio)quinolines and their Benzo/Hetero Fused Analogs - A Modified Skraup Quinoline Synthesis - Panda, Kausik; Siddiqui, Iffat; Mahata, Pranab K; Ila, Hiriyakkanavar; Junjappa, Hiriyakkanavar (Synlett, 2004)