Abstract: Sixteen of 2, 2'-bisbenzoxazole derivatives were synthesized, 13 of them are new compounds. Their m. p., IR, UV absorption spectra, fluorescence emission spectra, fluorescence quantum efficiencies and laser conversion efficiencies of the compounds were determined. 2,2'-Bisbenzoxa-zolyl derivatives were compared with l,4-bis(1',3'-benzoxazolyl-2')benzene derivatives and E-1,2-bis(l',3' benzoxazolyl-2')ethene derivatives and the difference of their spectra properties were also discussed.

Key words: Benzoxazole derivatives, UV absorption spectra, Fluorescence emission spectra