The Synthesis and Formation of Complexes between Derivatives of Chiral Aza-18-Crown-6 Ethers and Chiral Primary Organic Ammonium Salts

Chiral mono aza-18-crown-6 derivatives have been prepared in optically active form and high yield from amino alcohols via a cyclization reaction with tetraethylene glycol ditosylate.The enantiomeric recognition by these chiral aza-crown ethers between chiral primary ammonium perchlorate salts has been characterized by UV–Vis at 25 °C in chloroform.