(1) Light-emitting element, light-emitting device, electronic device and quinoxaline derivative.

(2) Synthesis of 1, 3, 4-oxadiazole derivatives containing quinoxaline moiety.

(3) It appears that the quinoxaline fluorescent derivative on N ternimal of a protein or a peptide be used to study structures and functions of the molecules.

(4) The content in this research thesis contained three parts:1. The research on 2D-QSAR was used quinoxaline as mother cycle.

(5) Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

(6) The synthesis under mild conditions and applications ofp-aminobenzene sulfonamide quinoxaline are introduced. The discussion is made for the effect on the synthesis.

(7) This study synthesis a metabolite of additive of Olaquindox named methyl - 3 - quinoxaline - 2 - carboxylic acid.