However, the typical inertness of unactivated Si-C(sp3) bondsunder conventional reaction conditions has hampered the application of simple tetraalkylsilanes in organic synthesis. Herein we report the chemoselective cleavage of Si-C(sp3) bonds of unactivated tetraalkylsilanes using iodine tris(trifluoroacetate). The reaction proceeds smoothly undermildconditions (-50 °C to room temperature) and tolerates