Catalytic Activation of Pinacolyl Allylboronate with Indium(I): Development of a General Catalytic Allylboration of Ketones

Have to B In it to win it! The unprecedented catalytic activation of a Group 13 metal reagent (boron) with a Group 13 metal catalyst in its low oxidation state (indium) was employed for the development of a general catalytic allylboration of ketones. This efficient CC bond‐forming reaction displays high functional group tolerance (see scheme; B(pin)=pinacolyl boronate).