The palladium-catalyzed borylation of aryl iodides with 2,3-dihydro-1H-benzo[d][1,3,2]diazaboroles was achieved. The mild reaction conditions employed allowed for the inclusion of a wide variety of functional groups in aryl iodides to be tolerated. Additionally, the borylated products can be transformed into the corresponding boronic acids or their esters under acidic conditions.