1. One‐Pot Synthesis of Boron‐Doped Polycyclic Aromatic Hydrocarbons via 1,4‐Boron Migration.
- Author
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Zhang, Jin‐Jiang, Tang, Man‐Chung, Fu, Yubin, Low, Kam‐Hung, Ma, Ji, Yang, Lin, Weigand, Jan J., Liu, Junzhi, Yam, Vivian Wing‐Wah, and Feng, Xinliang
- Subjects
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POLYCYCLIC aromatic hydrocarbons , *X-ray crystallography , *FLUORESCENCE spectroscopy , *LIGHT emitting diodes , *CYCLIC voltammetry , *ORGANIC light emitting diodes - Abstract
Herein, we demonstrate a novel one‐pot synthetic method towards a series of boron‐doped polycyclic aromatic hydrocarbons (B‐PAHs, 1 a–1 o), including hitherto unknown B‐doped zethrene derivatives, from ortho‐aryl substituted diarylalkynes with high atom efficiency and broad substrate scopes. A reaction mechanism is proposed based on the experimental investigation together with the theoretical calculations, which involves a unique 1,4‐boron migration process. The resultant benchtop‐stable B‐PAHs are thoroughly investigated by X‐ray crystallography, cyclic voltammetry, UV/Vis absorption, and fluorescence spectroscopies. The blue and green organic light‐emitting diode (OLED) devices based on 1 f and 1 k are further fabricated, demonstrating the promising application potential of B‐PAHs in organic optoelectronics. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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