palladium‐catalyzed decarboxylative coupling of acyclic β,γ‐alkynoic acids with various aryl iodides to chiral tetrasubstituted allenes is described. The coupling reaction comprises a decarboxylative γ‐palladation of α,α‐disubstituted carboxylic acids to provide the tetrasubstituted allenes with complete point‐to‐axial chirality transfer in excellent yields.
                                    描述了对映体
钯催化的无环β,γ-链烷酸与各种芳基
碘化物与手性四取代的烯键的脱羧偶联。偶联反应包括α,α-二取代的
羧酸的脱羧γ-palladation,以极好的收率为四取代的烯类提供完整的点对轴手性转移。