W Tungsten

Efficient and mild: The selective monoallylation of 1,2-diols was successfully developed with Pd/Sn bimetallic catalysis in good to excellent yields. This process was carried out with high substrate tolerance under mild conditions (see scheme). The catalyst system achieved the quite high chemoselectivity even in the presence of a 1:1 mixture of the 1,2-diol and mono-ol.