Recent progress in mild Csp 3 -H bond dehydrogenative or (mono-) oxidative functionalization.

Over the past few years, the development of oxidative methodologies towards efficient and selective direct Csp3 -H bond functionalization processes has attracted tremendous attention from synthetic chemists. However, only a little attention has been given to the key role of the nature of the oxidant. This review aims at providing a brief summary of the recent advances in mild and more benign oxidative Csp3 -H bond functionalization reactions, which are classified according to the type of oxidation system employed.