ChemInform Abstract: A One‐Pot Stereoselective Synthesis of Electron‐Deficient 4‐Substituted (E, E)‐1‐Arylsulfonylbuta‐1, 3‐dienes and Their Chemoselective [3 + 2] Cycloaddition with Azomethine Ylides — A Simple Synthesis of 1, 3, 4‐Trisubstituted Pyrrolidines and Pyrroles. Issue 46 (24th October 2013)