| abstract |
A 1,2,4,5-substituted phenyl derivative represented by the general formula (1), in the formula (1), only any one of the five X 1 ~ X 5 represents an N atom, and the rest represent a C atom , R 1 and R 2 each independently represent a H atom, an alkyl group with 1 to 6 carbon atoms, or an alkoxy group with 1 to 6 carbon atoms, and R 3 and R 4 each independently represent an alkyl group with 1 to 6 carbon atoms An alkyl group or an alkoxy group with 1 to 6 carbon atoms, m represents an integer of 0 to 4, when m is 2 or more, R3 may be different from each other, n represents an integer of 0 to 5, and when n is 2 or more, R4 can be different from each other. This compound is useful as a constituent component of an organic electroluminescent device. |