The increasing global demand for biodiesel has spawned an increase in the supply of glycerol.[1] Glycerol is an attractive and versatile feedstock as it is nontoxic, edible, and biodegradable, and it can be used as a building block for valueadded chemicals.[1b, 2] The development of novel, selective chemistry to provide new applications for glycerol-derived products remains a key challenge.[3] Herein, we report the chemoselective, catalytic ...