1319255-85-0Relevant academic research and scientific papers
Material for organic light-emitting device and organic light-emitting device thereof
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, (2020/06/16)
The invention provides a material for an organic light-emitting device and the organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. According to the invention, C site substitution of carbazole is carried out with an aryl-substituted pyrimidinyl, and N site substitution of carbazole is carried out with a specific heteroaryl; finally, the dendritic-structure material for the organic light-emitting device is formed. The glass transition temperature is high, the thermal stability is good, the film-forming property is good, the refractive index is high, the water and oxygen corrosion resistance is realized, and the synthesis is simple; the material can be applied to the organic light-emitting device as a covering layer, can effectively solve the problems of low refractive index, poor thermal stability, poor water and oxygen resistance stability, low luminous efficiency and short service life of the organic light-emitting device, and the organic light-emitting device has the advantages of high luminous efficiency and long service life.
Organic compound based on pyridine and benzoxadiazole and application of the compound
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Paragraph 0147-0149, (2020/03/17)
The invention discloses an organic compound based on pyridine and benzoxadiazole and an application of the compound and belongs to the technical field of semiconductors, wherein the compound has the structure of the general formula (I). The invention also
Iridium-catalyzed C-H borylation of pyridines
Sadler, Scott A.,Tajuddin, Hazmi,Mkhalid, Ibraheem A. I.,Batsanov, Andrei S.,Albesa-Jove, David,Cheung, Man Sing,Maxwell, Aoife C.,Shukla, Lena,Roberts, Bryan,Blakemore, David C.,Lin, Zhenyang,Marder, Todd B.,Steel, Patrick G.
supporting information, p. 7318 - 7327 (2014/11/07)
The iridium-catalysed C-H borylation is a valuable and attractive method for the preparation of aryl and heteroaryl boronates. However, application of this methodology for the preparation of pyridyl and related azinyl boronates can be challenged by low reactivity and propensity for rapid protodeborylation, particularly for a boronate ester ortho to the azinyl nitrogen. Competition experiments have revealed that the low reactivity is due to inhibition of the active catalyst through coordination of the azinyl nitrogen lone pair at the vacant site on the iridium. This effect can be overcome through the incorporation of a substituent at C-2. Moreover, when this is sufficiently electron-withdrawing protodeborylation is sufficiently slowed to permit isolation and purification of the C-6 boronate ester. Following functionalization, reduction of the directing C-2 substituent provides the product arising from formal ortho borylation of an unhindered pyridine ring. This journal is the Partner Organisations 2014.
