| abstract |
The present invention provides a novel compound having excellent hole-injecting properties into devices such as organic EL devices. Specifically, the present invention provides a compound comprising a residue obtained by removing at least one hydrogen atom from a structure represented by the following formula (1), (In the formula, R 1 represents a hydrogen atom, an alkyl group, etc., and these groups may have a substituent. Multiple R 1 may be the same or different. R 2 represents a hydrogen atom, an alkyl group, etc., and these groups may have a substituent. Multiple Each R 2 can be the same or different. R 4 represents a hydrogen atom, an alkyl group, etc., and these groups can have a substituent. Multiple R 4 can be the same or different. R 15 represents an alkyl group, etc., and these groups can have a substituent. When there are a plurality of R 15 , they may be the same or different. e represents an integer of 0 to 6. A plurality of e may be the same or different). |