ChemInform Abstract: Effect of Bronsted Acids and Bases, and Lewis Acid (Sn2+) on the Regiochemistry of the Reaction of Amines with Trifluoromethyl‐β‐diketones: Reaction of 3‐Aminopyrrole to Selectively Produce Regioisomeric 1H‐Pyrrolo[3, 2‐b]pyridines. Issue 19 (April 2016)