发明名称 |
BLUE LIGHT-EMITTING COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE, PREPARATION THEREOF, AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME |
摘要 |
PURPOSE: Provided is a blue light-emitting compound containing a heterocycle for use in organic electroluminescence devices, which solves the problems of conventional phenyl-containing blue light-emitting compounds such as low solubility in a solvent and difficulties in recrystallization and sublimation followed by limitation in purity. CONSTITUTION: The blue-light emitting compound for organic electroluminescence devices is represented by formula 1, wherein X is O or S, and each of R1, R2, R3 and R4 represents H, -CH3 or -C(CH3)3. The compound of formula 1 is prepared by the method comprising the steps of: (1) reacting a bromodiphenylmethane derivative represented by formula 2 with triethoxyphosphite to obtain a diphenylethoxy phosphoryl methane derivative; and (2) reacting the diphenylethoxy phosphoryl methane derivative with 2,5-thiophene dicarboaldehyde or 2,5-furandicarboaldehyde. |
申请公布号 |
KR20040060262(A) |
申请公布日期 |
2004.07.06 |
申请号 |
KR20020086808 |
申请日期 |
2002.12.30 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
HAN, YUN SU;KIM, GI DONG;KIM, SANG DAE;KIM, YONG GWAN;TAK, YUN HEUNG |
分类号 |
C09K11/06 |
主分类号 |
C09K11/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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