Highly Regioselective Palladium-Mediated Substitution of Allylic and Dienylic Cyclic Carbonates.

Abstract Reaction of chiral allylic and dienylic cyclic carbonates with various nucleophiles in the presence of (PPh 3 ) 4 Pd as a catalyst afforded α-, γ-, or e-substituted products with high regio-, ( E )-stereo-, and diastereoselectivity depending on nucleophiles.