Synthesis of 9,10-Bis(4-alkoxystyryl)anthracene Derivatives and Their Fluorescent Properties

Four 9,10-bis(4-alkoxystyryl)anthracene derivatives(4a~4d) were synthesized by Arbusov-Horner reaction of 9,10-bis(methylenedimethylphosphonate)anthracene with p-alkoxybenzaldehyde using anthracene as the center core.The structures were characterized by 1H NMR and IR.The fluorescent properties of 4 were preliminarily studied.The results showed that fluorescence intensity gradually increased with the number of the carbon atoms of flexible chain increasing.The largest fluorescence emission wavelength of 4a~4d were 525 nm,523 nm,517 nm and 515 nm,respectively.