ChemInform Abstract: Substituent Effects in the Aliphatic Claisen Rearrangement of Substituted (1‐Methyl‐3‐oxahexa‐1,5‐dienyl)amines: Synthesis of Substituted 2‐Aminopent‐4‐enals. Alternative (1,3)‐Sigmatropic Shifts in Related Aromatic Systems. | Publicación