We present the synthesis and characterization of dibenzo [b, f] borepins (DBBs) functionalized at the para and meta position with respect to the boron center in order to understand how regiochemical issues influence photophysical and electrochemical properties. An expanded synthetic repertoire is presented, using palladium catalysis (to perform Stille, Suzuki, Buchwald− Hartwig, and Sonogashira cross-coupling reactions) ...
