Activator-free and one-pot C-allylation by simple palladium catalyst in water

For atom economic and green chemistry concepts, we develop a reaction that involves one-pot and one step to construct the C–C bond without the help of any activating reagents for allylic alcohols in water. The palladium-catalyzed allylation of cyclic 1,3-diones using allylic alcohols directly gave the corresponding allylated products in 8–99% yields.