| abstract |
A benzoxazole-based fluorescent probe, preparation method and application, in the present invention, the probe [2-hydroxy-5-(3-hydroxy-3-methyl-1-butyne-1-yl)phenyl] benzoxazole, the preparation method is: 5-bromosalicylic aldehyde and methyl butynol obtain 5-(3-hydroxy-3-methyl-1-butynyl) salicylaldehyde intermediate through Sonogashira coupling reaction; The probe is obtained by condensation-cyclization reaction between the intermediate and o-aminophenol. The fluorescent probe of the invention has the selective recognition effects of fluorescence enhancement and fluorescence quenching for zinc ions and copper ions, respectively, has the characteristics of high sensitivity, good selectivity and strong anti-interference, and is suitable for environmental chemistry and biochemistry. Detection of zinc and copper ions. |