1603849-28-0Relevant articles and documents
ORGANIC COMPOUND, AND ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME
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, (2018/05/24)
The present invention provides an organic compound for an organic light emitting diode. An example of the organic compound is represented by:
A 9,9 the [...] -Spirobifluorene-4-boronic acid synthesis method
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Paragraph 0025; 0026, (2017/04/05)
The invention discloses a preparation method of 9,9'-spirobifluorene-4-boric acid, and belongs to the field of organic chemical synthesis. The 9,9'-spirobifluorene-4-boric acid can be applied to design and synthesis of organic optoelectronic materials. The method is achieved by the following steps: with o-bromoiodobenzene as a raw material, preparing a grignard reagent from magnesium powder, catalyzing with lithium bromide, so as to generate 2-bromobiphenyl-2'-magnesium bromide, and then reacting 2-bromobiphenyl-2'-magnesium bromide with fluorenone; and preparing 9,9'-spirobifluorene-4-boric acid by catalytic closed-loop reaction of p-toluene sulfonic acid and n-butyllithium boration. The method is good in reaction selectivity, few in side reaction, mild in reaction condition, easy to control, low in cost, simple to operate and suitable for industrialized production; and the total yield is over 76%.
Novel oligo-9.9-spirobifluorenes through ortho-linkage as full hydrocarbon host for highly efficient phosphorescent oleds
Jiang, Zuoquan,Yao, Haiqing,Zhang, Zhiqiang,Yang, Chuluo,Liu, Zhongyin,Tao, Youtian,Qin, Jingui,Ma, Dongge
supporting information; experimental part, p. 2607 - 2610 (2009/10/23)
4-Bromo-9,9′-spirobifluorene is facilely synthesized, and from this precursor, two ortho-linked oligo-9,9′-spirobifluorenes, 44BSF and 24TSF, are constructed. Devices with 24TSF as the full-hydrocarbon host material and lr(ppy)3 or (ppq)2
