C−H activation is a versatile tool for appending aryl groups to aromatic systems. However, heavy demands on multiple catalytic cycle operations and site-selectivity have limited its use for graphene segment synthesis. A Pd-catal- yzed one-step synthesis of functionalized triphenylene frameworks is disclosed, which proceeds by 2- or 4-fold C−H arylation of unactivated benzene derivatives. A Pd2(dibenzylideneacetone)3 catalytic system, using cyclic diaryliodonium salts as π-extending agents, leads to site-selective inter- and intramolecular tandem arylation sequences. Moreover, N-substituted triphenylenes are applied to a field-effect transistor sensor for rapid, sensitive, and reversible alcohol vapor detection.
CITATION STYLE
Mathew, B. P., Yang, H. J., Kim, J., Lee, J. B., Kim, Y. T., Lee, S., … Hong, S. Y. (2017). An Annulative Synthetic Strategy for Building Triphenylene Frameworks by Multiple C−H Bond Activations. Angewandte Chemie - International Edition, 56(18), 5007–5011. https://doi.org/10.1002/anie.201700405
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