Synthesis and binding ability of 1,2,3-triazole-based triterpenoid receptors for recognition of Hg2+ ion

A novel type of receptors based on 1,2,3-triazole glycyrrhetinic acid derived from natural triterpenoid molecules has been synthesized via click chemistry and they showed high selectivity and affinity for Hg2+ ion by both the 1,2,3-triazole rings and aldehyde groups.