2-Bromotetraazapentacene and Its Functionalization by Pd(0)-Chemistry
2015
Geyer, Florian L. | Brosius, Victor | Bunz, U. H. F. (Uwe H. F.)
We have synthesized a brominated N,N′-dihydrotetraazapentacene using a condensation route. Sonogashira reactions replace the Br-substituent by an alkynyl group, placed on the azaacene core. Sonogashira coupling of brominated dihydro tetraazapentacene 1H₂ with alkynes and subsequent oxidation afford several functionalized TIPS-tetraazapentacene derivatives with energetically stabilized FMOs. These TIPS-TAPs are either crystalline or amorphous, depending upon their substitution pattern.
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