Abstract
A new series of tripodal and linear phenolic-amines as well as 1,4,7,10-tetrakis(2,4-dialky-1-hydroxy-6-benzyl)-1,4,7,10-tetraazacyclododecane were efficiently synthesized in excellent to reasonably moderate yields. The one-pot reactions were performed in methanol solution through the commercially available 2,4-disubstited-phenols and dialkyldiamines or the macrocycles 1,4,7,10-tetraazacyclododecane (cyclen) and 1,4,8,11-tetraazacyclotetradecane (cyclam) in the presence of aqueous 37 % HCHO and Et3N. All the isolated compounds were spectroscopically characterized and, in some cases, structurally determined by single crystal- X-ray crystallography.
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