The reaction between 2,6-bis(hydroxylmethyl)-4-methylphenol and benzylamine afforded N,N',N''-tribenzyl-6,15,24-trimethyl-9,18,27-trihydroxy-2,11,20-triaza[3.3.3]metacyclophanes.
Azacalixarenes: new macrocycles with dimethyleneaza-bridged calix[4]arene systems