A light-emitting layer of an organic electroluminescent device comprises the following compound (I):
1
wherein X
1
and X
2
are a cyano group; R
1
is a C
1
-
6
alkyl group; R
2
is a hydrogen atom or a C
1-6
alkyl group; R
3
is a hydrogen atom or a C
1-6
alkyl group; the ring Z represents an aromatic hydrocarbon ring which has a substituent such as a N-substituted amino group, or a heterocycle which has a substituent such as a N-substituted amino group. The present invention provides an azepine compound useful for a light emission material of organic electroluminescent devices, and a process for producing the same.
一种有机电致发光装置的发光层包括以下化合物(I):1其中X1和X2是
氰基;R1是C1-6烷基;R2是氢原子或C1-6烷基;R3是氢原子或C1-6烷基;环Z表示具有取代基,如N-取代
氨基或具有N-取代
氨基的杂环的芳香族碳氢环。本发明提供了一种用于有机电致发光装置的
发光材料的氮杂七环化合物,以及其制备方法。