Unsual ε/γ-regiospecificity of (E/Z)-pentadienyltin in the Lewis acid-promoted reaction with an aldehyde
Abstract
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 ε-position and (Z)-PDT at the internal γ-position.