Stabilization of the 1-naphthyltropylium ion by [2.2]paracyclophane fixed at the face-to-face position to the tropylium ring

Abstract The title cation, in which [2.2]paracyclophane and the tropylium ring are rigidly fixed at the face-to-face arrangement, was synthesized, and was found to exhibit the highest stability in a series of (8-substituted 1-naphthyl)tropylium ions prepared so far.