ChemInform Abstract: Control of the Dual Reactivity (Iminium‐Dienamine) of β‐Arylmethyl α, β‐Unsaturated Aldehydes in Organocatalytic 1, 3‐Dipolar Cycloadditions with N‐Benzoyl C, N‐Cyclic Azomethine Imines. Issue 16 (April 2015)