Treatment of ortho-(trimethysilyl)aryl phenylsulfonates with a sol. fluoride source initiates a Truce-Smiles rearrangement leading to the formation of functionalized bi-aryls [e.g., I → II (74%)]. This new carbon-carbon bond-forming reaction proceeds without recourse to transition metal catalysis, under mild reaction conditions and with good functional group compatibility. Safety: precautions should be taken in handling poly-nitro aroms. to avoid detonation.