有机电致发光材料用N,N,N′,N′-四苯基联苯二胺类化合物的制备

Preparation of N, N, N′N′- Tetraphenylbiphenyldiamines for Organic Electroluminescent Device as Hole Transport Materials

通过 Ulmann缩合反应合成了在有机电致发光 ( OEL)显示器件上有使用前景的四苯基联苯二胺类空穴传输材料 N,N′-二苯基 - N,N′-双 ( 3-甲基苯基 ) - [1 ,1′-联苯 ]- 4,4′-二胺、N,N′-二苯基 - N,N′-双 ( 4 -甲基苯基 ) - [1 ,1′-联苯 ]- 4,4′-二胺和 N,N,N′,N′-四苯基 - [1 ,1′-联苯 ]- 4,4′-二胺。对产品从混合物中分离的方法作了改进。其产率及含量分别为 85%、97.6% ;95%、 98.5% ;70 %、 98.1 %。对 3种化合物均用红外光谱进行了表征。

The tetraphenylbiphenyldiamines used as the hole transport materials have great application potentiality in organic electroluminescent(OEL) devices. Three of these compounds were prepared by Ulmann reaction .They were N, N′ diphenyl N, N′ bis(3 methylphenyl) [1, 1′ biphenyl] 4, 4′ diamine(1) , N, N′ diphenyl N, N′ bis(4 methylphenyl) [1, 1′ biphenyl] 4, 4′ diamine(2) and N, N, N′, N′ tetraphenyl [1, 1′ biphenyl] 4, 4′ diamine(3). The method of seperating products from the reaction mixtures was improved, and the yields and purities are (1)Y 85%,P97.6% ;(2)Y95%, P 98.5% and (3)Y 70%, 98.1%, respectively. Their IR spectra were all measured also.