Preparation of Nitrogen-Containing 25-Membered Pentaolefinic Macrocycles: (E,E,E,E,E)-1,6,11,16,21-Penta(arylsulfonyl)-1,6,11,16,21-pentaazacyclopentacosa-3,8,13,18,23-pent... - Blanco, Belén; Christensen, Jesper; Maurel, Ignasi; Pleixats, Roser; Serra, Anna; Pla-Quintana, Anna; Roglans, Anna; Benet-Buchholz, Jordi (Synthesis, 2005)