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Updated: Apr 15, 2026

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Bis-BN-embedded [4]helicenes: synthesis, structures and properties
Bingkang Liu1, Jiahao Cui2, Xiaoming Wu2
1Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China. chenglongli1991@email.tjut.edu.cn.
None:
A series of bis-BN-embedded [4]helicenes were successfully synthesized through a sequential nitrogen-directed electrophilic borylation strategy. Single-crystal X-ray diffraction unequivocally confirmed their highly twisted helical frameworks. Additionally, BN embedding allows precise modulation of frontier orbital energy levels and significantly enhances the fluorescence quantum yields of these compounds. Preliminary results show that blue organic light-emitting diodes (OLEDs) can be fabricated using 4a and 4b as the emissive layers.
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