Diamond crowns: Design, synthesis and X-ray crystallographic studies of a novel family of adamantane-containing crown ethers

Article abstract of DOI:10.1016/S0040-4020(99)00311-7

A novel family of crown ethers, containing adamantane units in the cyclic framework, has been designed and synthesized by a straightforward one- step procedure. The design strategy permits the incorporation of a variety of α-amino acids to provide adamantane-constrained chiral crown ethers for use as simple models in studying ion-transport and host-guest complexation. X- ray crystallographic studies on four members of this family have revealed interesting conformational features. Ion complexation studies of several members with alkali metal and ammonium ions are reported.