Synthesis, Crystal Structures and Electrochemical Properties of O-Chloropropyl and O-Cyanopropyl Resorcinarenes
Abstract
Tetraaryl and tetraferrocenyl resorcinarenes 1a–1d were fully alkylated with 1-bromo-3-chloropropane or 4-chlorobutyronitrile in refluxing acetone with potassium carbonate as base to give O-3-chloropropyl derivatives 2a–2d and O-3-cyanopropyl derivatives 3a–3d. The single crystal analysis shows that alkylresorcinarenes exist in an rccc (all cis) configuration and arylresorcinarenes in an rctt (cis-trans-trans) configuration. The electrochemical properties of tetraferrocenyl resorcinarenes were studied by cyclic voltammetry.