Dehydrogenative lactonization of diols with a platinum-loaded titanium oxide photocatalyst

A new catalytic route for the lactonization of diols was developed by using a metal-loaded TiO2 photocatalyst. In particular, Ptloaded rutile TiO2 exhibited a high photocatalytic activity with high selectivity. In addition, it was found that a heterogeneous acid catalyst can accelerate this photocatalytic lactonization.