Cross Coupling between sp3-Carbon and sp3-Carbon Using a Diborylmethane Derivative at Room Temperature

A novel example of the Suzuki-Miyaura cross-coupling reaction between sp(3)-carbon and sp(3)-carbon is described. The reaction of a diborylmethane derivative with allyl halides or benzyl halides proceeded efficiently in the presence of appropriate Pd-catalysts at room temperature. The present approaches provide functionalized homoallylboronates and alkylboronates with excellent regio- and chemoselectivities.