Efficient Synthesis of Carbazole Core Diblock Dendrimer by Double Click Chemistry

Graphical Abstract

Efficient double click methods for the synthesis of carbazole core diblock codendrimers were developed. The synthetic strategy involved the sequential double click reactions between an alkyne and an azide. The chromophore building block, N-octyl-3,6-diazidocarbazole, was chosen to serve as the azide functionalities for dendrimer growth via double click reactions with the alkyne-functionalized PAMAM dendrons as hydrophilic dendron and alkyne-functionalized Fréchet-type dendrons as hydrophobic dendron. The structure of diblock codendrimers was confirmed by ¹H- and ¹³C-NMR spectroscopy, IR spectroscopy, mass spectrometry, and GPC analysis.

Keywords:

• Carbazole
• click reaction
• diblock dendrimer
• triazole

Acknowledgment

This research was supported by the Dong-A University Research Fund.