Unprecedented tunable tetraazamacrocycles

Org Lett. 2010 Jun 18;12(12):2722-5. doi: 10.1021/ol100793g.

Abstract

Novel nitrogen-bridged aza[1(4)]cyclophanes with fine-tuned cavities have been synthesized by nucleophilic aromatic substitution of 1,5-difluoro-2,4-dinitrobenzene with diaminobenzene derivatives.