1,3,5-Tris(2′-aminophenyl)benzene: A Novel Platform for Molecular Receptors

The synthesis of a novel, rigid, aromatic platform for molecular receptors is described. 1,3,5-Tris(2′-aminophenyl)benzene was prepared via Suzuki-Miyaura cross-coupling reactions of 2-aminophenylboronic acid with 1,3,5-triiodobenzene in the ­presence of Ba(OH)2, Pd(OAc)2 and (2-biphenyl)dicyclohexyl­phosphine. Alternatively, one-pot borylation of 2-bromoaniline and cross-coupling of the resulting boronate ester with 1,3,5-triiodo­benzene was investigated.