Catalytic platinum-initiated cation-olefin reactions with alkene terminating groups

Abstract

A series of phosphine–Pt²⁺-catalysts is reported, which enable the oxidative cascade cyclization of poly-alkene substrates. When the terminus is appropriately arranged and a catalyst reoxidation mediator is included, several polycyclic all carbon skeletons can be obtained. In one example, a chiral P₂Pt⁺² catalyst provides up to 79% ee.