4,13‐Diaza‐18‐Crown‐6

4,13-Diaza-18-crown-6 intermediate: 1,10-dibenzyl-4,7-dioxa-1,10-diazadecane reactant: 1,2-bis(2-iodoethoxy)ethane (39.3 g, 106 mmol) intermediate: N,N′-dibenzyl-4,13-diaza-18-crown-6 product: 4,13-diaza-18-crown-6 Keywords: cyclization, condensation; metal-catalyzed reactions, palladium; reduction, miscellaneous; replacement reactions, halogen by amino; replacement reactions, halogen by halogen; sodium iodide