A new strategy to the preparation of selectively functionalized polyazamacrocycles is presented. Polyaza[n]paracyclophanes receptors are able to efficiently direct their own selective monofunctionalization upon interaction with simple guests such as metal cations. This enables the preparation of novel receptors functionalized at one of the benzylic nitrogen atoms with a variety of groups.
提出了一种制备选择性官能化的聚氮杂大环化合物的新策略。聚氮杂[n]对环环烷酰胺受体能够在与简单的客人(例如
金属阳离子)相互作用时有效地指导其自身的选择性单官能化。这使得能够制备在具有多个基团的苄基氮原子之一上官能化的新型受体。