Multifunctional fluorescent dye capable of identifying benzene and detecting copper ions, preparation, application and identification method

The invention relates to the field of functional fluorescent dyes, in particular to a multifunctional fluorescent dye capable of identifying benzene and detecting copper ions, preparation, application and an identification method. The preparation method comprises the following steps: adding 4-bromotriphenylamine, p-formylphenylboronic acid, tetrakis (triphenylphosphine) palladium and anhydrous potassium carbonate into a reactor, and carrying out reflux stirring and purification in a nitrogen atmosphere by taking ethylene glycol dimethyl ether and deionized water as solvents to obtain a compound; and dissolving the compound in absolute ethyl alcohol, adding diaminomaleonitrile and glacial acetic acid, stirring, and purifying to obtain the compound required by the experiment. The fluorescent dye probe disclosed by the invention is high in sensitivity, good in selectivity, low in detection limit, simple and rapid, and has a wider application prospect. 本发明涉及功能荧光染料领域，特别是涉及一种可识别苯和检测铜离子的多功能荧光染料、制备、应用及识别方法；将4-溴三苯胺、对甲