Palladacycle-Catalyzed Triple Suzuki Coupling Strategy for the Synthesis of Anthracene-Based OLED Emitters

The
development of the site-selective Suzuki–Miyaura cross-coupling
of dibromoanthracene as an efficient strategy toward organic light
emitting diodes (OLEDs) is disclosed in this article. An unprecedented
step-economic palladacycle-promoted triple Suzuki coupling protocol
allowed the synthesis of three new OLED emitters and could prove to
be a useful general strategy for researchers working in this field.
Characterization of the synthesized molecules by UV–vis spectroscopy
and thermogravimetric analysis–differential scanning calorimetry
followed by density functional theory studies of the different properties
strongly confirms the derivatives possess more significant hole mobility
character than electron transfer capability.