Benzofluorene compound, material for light emitting layers using said compound, and organic electroluminescent element

An element, for example, an organic electroluminescent element having excellent service life characteristics is provided by using a benzofluorene compound represented by general formula (1), wherein a benzofluorene ring is substituted by an N,N-diphenylamino group and an N-naphthyl-N-phenylamino group, as a material for a light emitting layer of the organic electroluminescent element. (In general formula, R represents an alkyl group having 1-6 carbon atoms, or the like; one of A and B represents a group represented by general formula (2), and the other represents a group represented by general formula (3); R1 represents a hydrogen atom, a silyl group which is substituted by an alkyl group having 1-4 carbon atoms, or the like; and n represents an integer of 0-5.)