1,2,4,5-SUBSTITUTED PHENYL DERIVATIVE, METHOD FOR PRODUCING SAME AND ORGANIC ELECTROLUMINESCENT ELEMENT HAVING SAME AS CONSTITUENT COMPONENT

摘要

A 1,2,4,5-substituted phenyl compound represented by the formula (1):
wherein one of X 1 - X 5 is nitrogen and the remainders of X 1 -X 5 are carbon; R 1 and R 2 represent hydrogen, C 1-6 alkyl or C 1-6 alkoxy; R 3 and R 4 represent C 1-6 alkyl or C 1-6 alkoxy; and m is an integer of 0 - 4, and n is an integer of 0 - 5. This compound is useful as a constituent for an organic electroluminescent device.