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发明授权
US07816668B2 Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device 有权
螺芴衍生物，发光元件用材料，发光元件，发光元件，电子元件等

Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device
摘要：
It is an object of the present invention to provide a material having a high Tg and a wide energy gap. The present invention provides a spirofluorene derivative represented by General Formula 1. (In the formula, R1 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a group represented by General Formula 2. Each of R2 and R3 is either hydrogen or an alkyl group having 1 to 4 carbon atoms and may be identical or different. R4 is an aryl group having 6 to 15 carbon atoms. Each of R5 and R6 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms and may be identical or different.)
摘要（中）：

本发明的目的是提供具有高Tg和宽能隙的材料。 本发明提供由通式1表示的螺芴衍生物（式中，R 1为氢，碳原子数为1〜4的烷基或通式2所示的基团中的任一个.R 2，R 3为 氢或具有1〜4个碳原子的烷基可以相同或不同，R4是碳原子数6〜15的芳基，R5和R6分别是氢，碳原子数1〜4的烷基， 原子或具有6至15个碳原子的芳基，可以相同或不同。）

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