Threenovelbenzocrownetherderivativeshavebeensynthesizedandtheircationbindingbehaviorwithuniandbi-valentmetalionswasevaluatedbythesolventextractionofaqueousmetalpicrates.Theobtainedresultsindicatethatthesize-fitofcrownetherandmetalcation,andelectroneffectofthesidearmattachedtobenzocrownethersaffecttheircationbindingabilityandselectivity.