The present invention relates to aromatic nitrogen heterocycles, and to electronic devices, in particular organic electroluminescent devices, which comprise these aromatic nitrogen heterocycles, in particular in a hole-injection layer and/or in a hole-transport layer and/or in a hole-blocking layer and/or in an electron-transport layer and/or in an emitting layer.
of C3-symmetric fully substituted benzenes were prepared based on alkyl triamino-benzene-tricarboxylates. Starting with a one step-synthesis, the alkyl triamino-benzene-tricarboxylates were synthesized using the corresponding cyanoacetates. The reactivity of these electronically sophisticated compounds was investigated by the formation of azides, the click reaction of the azides and a Sandmeyer-like
基于烷基三氨基苯三羧酸盐制备了一系列C 3对称完全取代苯。从一步合成开始,使用相应的氰基乙酸酯合成三氨基苯三羧酸烷基酯。通过叠氮化物的形成、叠氮化物的点击反应和类 Sandmeyer 反应研究了这些电子复杂化合物的反应性。由于三氨基苯的稳定性低,直接N-烷基化的报道很少。使用稳定的烷基三氨基苯三羧酸盐使我们能够在标准烷基化条件下进行完全N-烷基化。C 3的分子结构对称结构已通过 X 射线分析得到证实。