Pd-catalyzed C4-olefination of oxazoles via C-H bond activation: divergent synthesis of functionalized amino alcohol and amino acid derivatives.

A Pd-catalyzed C4-olefination of oxazoles via C-H bond activation under mild conditions was achieved. The reaction was shown to be general over a range of substrates. New protocols for the divergent transformation of these products to provide functionalized amino alcohol and amino acid derivatives have also been established.