Dibenzo[f,h]Quinoxaline Derivative, Method of Synthesizing the Same, Light-Emitting Element, Light-Emitting Device, Electronic Appliance, and Lighting Device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US20150080574A1
公开(公告)日:2015-03-19
A dibenzo[f,h]quinoxaline derivative in which impurities are reduced and a novel method of synthesizing the dibenzo[f,h]quinoxaline derivative in which impurities are reduced are provided. In addition, a light-emitting element, a light-emitting device, an electronic appliance, or a lighting device with high emission efficiency and high reliability in which the dibenzo[f,h]quinoxaline derivative is used as an EL material is provided. In the synthesis method, a 2-(chloroaryl)dibenzo[f,h]quinoxaline derivative is used as a synthetic intermediate in a synthetic pathway so that an impurity contained in a final product can be removed easily by purification by sublimation.
提供一种二苯并[f,h]喹噁啉衍生物,其中杂质得到减少,并提供一种减少杂质的二苯并[f,h]喹噁啉衍生物的新合成方法。此外,提供一种使用二苯并[f,h]喹噁啉衍生物作为EL材料的发光元件、发光装置、电子设备或照明装置,具有高发射效率和高可靠性。在合成方法中,使用2-(氯芳基)二苯并[f,h]喹噁啉衍生物作为合成中间体,以便通过升华纯化轻松去除最终产品中含有的杂质。