| abstract |
(57) [Summary] (Corrected) [Configuration] The following formula [Wherein R 1 to R 5 each independently represent hydrogen, fluorine, an alkyl group, an alkoxy group, a dialkylamino group, an alkanoyloxy group, an alkyloxycarbonyl group, an aryl group, a cyano group, an alkanoyl group or a trifluoromethyl group. X represents a single bond, O or NY (Y represents an alkyl group or an aryl group), and n is 1, 2, 3 Or 4 is shown]. [Effect] With the above compound, various emission colors can be obtained. It is possible to produce a highly efficient light emitting device having excellent charge transport properties, high fluorescence intensity, and high efficiency. |