A BN anthracene mimics the electronic structure of more highly conjugated systems

摘要

9a, 9- BN anthracene was synthesized using a simple three- step sequence involving intramolecular electrophilic borylation of 2- benzylpyridines. The same procedure can be applied to yield a number of substituted 9a, 9- BN anthracenes. Spectroscopic characterization of the parental compound ( UV- photoelectron spectroscopy, UV- vis absorption/ emission) shows an electronic structure more similar to that of a larger conjugated system rather than anthracene, the direct all- carbon analogue.