Preparation method for thermal activation compound of blue light self-emitter and application thereof

[0021] Example 1: Synthesis of tbCz-CO blue light molecular compound:

[0022]

[0023] in N 2 Under the atmosphere, add 0.58g OH-CO (1.0mmol), 1.33g Br-tb (3.0mmol), 0.56g KOH (10mmol), 1.9g TBAB (6mmol) into the eggplant-shaped bottle, add 100ml of toluene to mix with it, and heat up to 78°C, stirred and refluxed for 12h, then cooled to room temperature, removed the solvent with a rotary evaporator, dissolved the remaining crude product in 100ml of dichloromethane, washed three times with saturated brine (3×100ml), and washed the organic layer with Anhydrous MgSO 4 After drying, the product was purified by column chromatography (silica gel, ethyl acetate / petroleum ether) to obtain a white solid product (0.9 g, 70%).

[0024] (Note: TBAB mentioned in the above steps is tetrabutylammonium bromide).

[0025] Embodiment 2: Synthesis of poCz-CO blue light molecular compound:

[0026]

[0027] Note: where R' is

[0028]

[0029] in N 2 Under the atmosphere, add 0.58g OH-CO (1.0mmol), 2.79g Br-po (3.0mmol), 0.56g KOH (10mmol), 1.9g TBAB (6mmol) into the eggplant-shaped bottle, add 100ml of toluene to mix with it, and heat up to 78°C, stirred and refluxed for 12h, then cooled to room temperature, removed the solvent with a rotary evaporator, extracted the remaining crude product with dichloromethane, and finally used column chromatography (silica gel, ethyl acetate / petroleum ether) for The product was purified to give the product as a white solid (1.2 g, 69%).