| 摘要 |
<p>The present invention relates to a method for preparing ligand of dopant used in an organic light emitting device, and more specifically, to a method for preparing ligand of blue phosphorescence dopant which can be applied to apparatuses such as a flat panel display or various electronic devices. According to a preparation method of the present invention, by reducing reaction steps of (2-(2,4-difluoro-3-(trifluoromethyl)phenyl)-4-methylpyridine) ligand which is a blue phosphorescence dopant material, a large amount of the materials can be prepared in a short period of time, thereby being practically utilized in industry.</p> |
