Synthesis of Polycarboxylic Diadamantylarenes

Polycarboxylic diadamantylarenes have been synthesized by the double alkylation aromatic hydrocarbons with adamantane-1-carboxylic acids, 2-(adamantan-1-yl)acetic acids, and hydroxy-substituted mono- and dicarboxylic acids of the adamantane series under acidic conditions. The synthesized compounds can be regarded as structurally rigid polycarboxylate ligands for the design of metal–organic frameworks.