Synthesis Method of Organometallic Complex, Synthesis Method of Pyrazine Derivative, 5,6-Diaryl-2-Pyrazyl Triflate, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US20160108006A1
公开(公告)日:2016-04-21
Provided is a 5,6-diaryl-2-pyrazyl triflate, its synthetic method, and a method for synthesizing an organometallic complex having a triarylpyrazine ligand from the 5,6-diaryl-2-pyrazyl triflate. The triflate is readily obtained from the corresponding 5,6-diarylpyrazin-2-ol, and the palladium-catalyzed coupling of the 5,6-diaryl-2-pyrazyl triflate with an arylboronic acid derivative leads to a high yield of a triarylpyrazine derivative having high purity. The use of the triarylpyrazine derivative in the reaction with a metal compound such as a metal chloride results in an ortho-metallated organometallic complex with high purity. The high purity of the organometallic complex contributes to the extremely high durability of a light-emitting element.
提供了一种5,6-二芳基-2-吡唑基三氟甲磺酸酯,以及其合成方法,以及从5,6-二芳基-2-吡唑基三氟甲磺酸酯合成具有三芳基吡啶配体的有机金属配合物的方法。该三氟甲磺酸酯可从相应的5,6-二芳基吡啶-2-醇中轻松获得,通过5,6-二芳基-2-吡唑基三氟甲磺酸酯与芳基硼酸衍生物的钯催化偶联反应,可得到高纯度的三芳基吡啶衍生物产率较高。将三芳基吡啶衍生物与金属氯化物等金属化合物反应,可得到高纯度的邻金属化有机金属配合物。有机金属配合物的高纯度有助于提高发光元件的极高耐久性。