Synthesis of Diamides and Diimines Derived from 4,4′-(1,3-Phenylenebis(oxy))dianiline, Units for Symmetrical Macrocycles

<table>Synthesis of dihydrazide from esters <b>9</b> and <b>5</b>.</table>

Organic Chemistry International

Scheme 4: Synthesis of Diamides and Diimines Derived from 4,4′-(1,3-Phenylenebis(oxy))dianiline, Units for Symmetrical Macrocycles 