Organic electroluminescent element, compounds and materials used for the organic electroluminescent element, and light-emitting, display and illuminating devices using the elements

A compound represented by the following general formula (1):

• wherein:
• Ph1 represents a phenyl group, and Ph2 represents a phenylene group;
• R11 to R15 each independently represent a hydrogen atom, an alkyl group, or a silyl group, and R11 to R15 are not bound to each other to form a ring;
• any one of R21 to R24 represents a group represented by the general formula (1A) or (1B) below, and the other R21 to R24 each independently represent hydrogen atoms or alkyl groups, and R21 to R24 are not bound to each other to form a ring;
• R25 represents a hydrogen atom, an alkyl group, or a silyl group
• wherein:
• Phi represents a phenylene group, Ph4 represents a p-phenylene group, and Ph5 represents a phenyl group;
• R30 and R40 each independently represent an alkyl group, n3 and n4 each independently represent an integer of 0 to 4, and, when n3 and n4 are 2 or more, a plurality of R30, a plurality of R40, and R30 and R40 are not connected to each other to form a ring;
• R50 represents a substituent, n5 represents an integer of 0 to 5, and, when n5 is 2 or more, a plurality of R50 may be connected to each other to form an aromatic hydrocarbon ring, with the proviso that when a plurality of R50 are connected to each other to form an aromatic hydrocarbon ring, then Ph5 as a whole is not further substituted with an aromatic hydrocarbon ring;
• R40 and R50 are not connected to each other to form a ring;
• wherein:
• Ph3, Ph4a, and Ph4b each independently represent a phenylene group (at least one of Ph4a and Ph4b representing a p-phenylene group;
• Ph5 represents a phenyl group;
• R30, R40a, and R40b each independently represent an alkyl group, n3, n4a, n4b each independently represent an integer of 0 to 4, and, when n3, n4a, and n4b are 2 or more, a plurality of R30, a plurality of R40a, a plurality of R40b, R30 and R40a, and R40a and R40b are not connected to each other to form a ring;
• R50 represents a substituent, Ph5 represents a phenyl group, n5 represents an integer of 0 to 5, and, when n5 is 2 or more, a plurality of R50 may be connected to each other to form an aromatic hydrocarbon ring, with the proviso that when a plurality of R50 are connected to each other to form an aromatic hydrocarbon ring, then Ph5 as a whole is not further substituted with an aromatic hydrocarbon ring;
• R40b and R50 are not connected to each other to form a ring.