Nontemplate Synthesis of Two Novel 23-Membered N₃O₄-Donor Macrocycles

Abstract

Abstract

A novel 23-membered heptadentate N₃O₄ Schiff base ligand has been prepared by [1 + 1] cyclocondensation of 1,2-bis(2′-aminophenoxy)-4-t-butylbenzene with 2,6-bis(2-formylphenoxymethyl)pyridine by a nontemplate procedure. Treatment of L₁ with NaBH₄ in EtOH/CHCl₃ gave the di-amine macrocycle L_2.

Keywords:

• Macrocycle
• nontemplate synthesis
• reduction
• Schiff base

ACKNOWLEDGMENTS

The authors thank the Islamic Azad University of Gorgan and Sharif University of Technology for the support of this work.