The N-diphenylmethyl derivative 4 is the immediate precursor of the N-substituted dipolar [14]metaheterophane 3, and allows the convenient synthesis of the unsubstituted macrocycle 5, which can be transformed into the quadrupolar or dipolar heterophanes 1 and 2; the molecular structures of 1 and 2 were confirmed by single-crystal X-ray analysis.
N-二苯甲基衍
生物 4 是 N-取代的二极 [14] 元杂环烷 3 的直接前体,可以方便地合成未取代的大环 5,并可将其转化为四极或二极杂环烷 1 和 2;单晶 X 射线分析证实了 1 和 2 的分子结构。