Synthesis of 1,10-Disubstituted 1,4,7,10,13,16-Hexaazacyclooctadecanes and Their Extractability for Metal Cations

Article abstract of DOI:10.1246/bcsj.61.2413

1,10-Disubstituted 1,4,7,10,13,16-hexaazacyclooctadecanes (hexaaza-18-crowns) having lipophilic groups were synthesized from 1,2-ethanediamine as a starting material.Cyclization of 3,6-ditosyl-3,6-diazaoctanedioyl dichloride and 3,6-ditosyl-3,6-diazaoctan