Unsual ε/γ-regiospecificity of (E/Z)-pentadienyltin in the Lewis acid-promoted reaction with an aldehyde
摘要:
In the Lewis acid-promoted reaction between pentadienyltin (PDT) and an aldehyde, (E)- and (Z)-PDTs exhibit opposite regioreactivities: (E)-PDT reacts at the terminal epsilon-position and (Z)-PDT at the internal gamma-position.