| abstract |
The invention discloses a 2,5-dinaphthyloxane derivative, which is characterized in that the structural formula of the derivative is as follows: , where R=R`orR≠R`, R, R` are hydrogen atoms, ethyl or propylalkyl groups, which are 4-substituted-1-naphthylcarbaldehyde and 2-(4-substituted)naphthyl -1,3-Propanediol, in the ratio of 1mol:0.8～2.0mol, dissolved in organic solvents such as DMF or toluene, catalyzed by silicon-based solid acid catalyst, reacted under ultrasonic radiation at 40～150℃ for 0.5～2.0h , to obtain 2,5-dinaphthyloxane derivatives. The invention has the characteristics of high fluorescence quantum efficiency, unfavorable crystallization and simple preparation method. |