Preparation method of T-shaped nitrogen-boron-aza dibenzo-phenalene derivatives

The invention discloses a preparation method of T-shaped nitrogen-boron-aza dibenzo-phenalene derivatives, and relates to the fields of organic synthesis and organic functional molecules. According tothe preparation method, nitrogen-boron-aza dibenzo-phenalene bromide is used as a key precursor, different functional groups are introduced into a nitrogen-boron-aza dibenzo-phenalene skeleton through a high-yield coupling reaction, and a series of T-shaped nitrogen-boron-aza dibenzo-phenalene derivatives are prepared. The method is simple to operate and high in yield, introduction of functionalgroups has remarkable influence on solid accumulation, electrochemical behaviors and spectral properties of the derivatives, and particularly, the prepared T-shaped nitrogen-boron-aza dibenzo-phenalene derivatives has an excellent blue light emission characteristic and high fluorescence quantum yield (up to 62%). Therefore, the T-shaped nitrogen-boron-aza dibenzo-phenalene derivatives have a widepotential application prosp