Stereoselective Synthesis of 1,2,3‐Trisubstituted 1,3‐Dienes Through Novel [3,3]‐Sigmatropic Rearrangements in α‐Allenic Methanesulfonates: Application to the Preparation of Fused Tricyclic Systems by Tandem Rearrangement/Diels—Alder Reaction. | Publicación