Organic electroluminescent element, method for producing organic electroluminescent element, display, and lighting device

An organic electroluminescent element including an organic layer provided between at least a pair of a cathode and an anode, wherein

• the organic layer is formed of at least one layer including a luminescent layer, and
• at least one layer forming the organic layer contains at least one selected from compounds represented by general formulae (A2) and (A5):
• wherein in the general formula (A2), X represents an oxygen atom or a sulfur atom;
• wherein in the general formula (A5), X1 represents an oxygen atom or a sulfur atom;
• Z2, Z3, Z5 to Z8 independently represent ═N— or ═C(R1)— respectively;
• R1 represents a hydrogen atom or a substituent;
• Z4 is ═N—, Z1 represents ═N— or ═C(R2)—, and R2 represents a nitrogen-containing 6 membered heterocycle of general formula (A5-7) or (A5-8) or a nitrogen-containing 5 membered ring of general formula (A5-2);
• in the formula (A5-2), W1 represents —N— or ═C—;
• W2 to W5 independently represent ═N— or ═C(R4)— respectively;
• R4 represents a hydrogen atom or a substituent;
• at least one of W1 to W5 represents ═N—;
• * represents a linkage position to the general formula (A5), and if two of ═C(R4)— are adjacently placed in series, two of R4 may be condensed together to form a ring;
• wherein in the general formula (A5-7), Y1 to Y3, and Y6 to Y9 independently represent ═N— or ═C(R3)— respectively;
• R3 represents a hydrogen atom or a substituent;
• at least one of Y1 to Y3 represents ═N—;
• * represents a linkage position to the general formula (A5), X2 represents one member selected from an oxygen atom, a sulfur atom, —NR2— or —CR3R4, R2 and R4 are identical to said R2 and R4, respectively;
• wherein in the general formula (A5-8), Y1 to Y3, and Y6 to Y9 independently represent ═N— or ═C(R3)— respectively;
• R3 represents a hydrogen atom or a substituent;
• at least one of Y1 to Y3 represents ═N—;
• * represents a linkage position to the general formula (A5), X2 represents one member selected from an oxygen atom, a sulfur atom, —NR2— or —CR3R4—, R2 and R4 are identical to said R2 and R4, respectively.

An organic electroluminescent element including an organic layer provided between at least a pair of a cathode and an anode, wherein

• the organic layer is formed of at least one layer including a luminescent layer, and
• at least one layer forming the organic layer contains at least one selected from compounds represented by general formulae (A1) to (A5):
• wherein in the general formulae (A1) to (A3), X represents an oxygen atom or a sulfur atom;
• wherein in the general formula (A5), X1 represents an oxygen atom or a sulfur atom;
• Z1 to Z8 independently represent ═N— or ═C(R1)— respectively;
• R1 represents a hydrogen atom or a substituent;
• at least one of Z1 to Z4 represents ═N—, if Z4 is ═N—, Z1 represents ═N— or ═C(R2)—, and R2 represents a nitrogen-containing 6 membered heterocycle of general formula (A5-1) or a nitrogen-containing 5 membered ring of general formula (A5-2), if Z4 is ═C(R1)—, at least Z3 represents ═N—;
• wherein in the formula (A5-1), Y1 to Y5 independently represent ═N— or ═C(R3)— respectively;
• R3 represents a hydrogen atom or a substituent;
• at least one of Y1 to Y5 represents ═N—;
• * represents a linkage position to the general formula (A5), if two of ═C(R3)— are adjacently placed in series, two of R3 may be condensed together to form a ring;
• wherein in the formula (A5-2), W1 represents —N— or ═C—;
• W2 to W5 independently represent ═N— or ═C(R4)— respectively;
• R4 represents a hydrogen atom or a substituent;
• at least one of W1 to W5 represents ═N—;
• * represents a linkage position to the general formula (A5), if two of ═C(R4)— are adjacently placed in series, two of R4 may be condensed together to form a ring;
• wherein
• the luminescent layer includes an electron transfer layer, and
• the electron transfer layer contains at least one of the compounds represented by the general formulae (A1) to (A5).