Preparation of Calix[8]arene Derivatives Functionalized at a Single Methylene Bridge

Abstract A calix[8]arene derivative substituted at the single methylene bridge by a chlorine atom reacts at the substituted bridge with O, N, and C nucleophiles under SN1 conditions. Thiscalix[8]arene can serve as a useful starting material for the preparation of calix[8]arene derivatives functionalized at a single methylene bridge.