19462-79-4Relevant articles and documents
Novel compound and organic light emitting device comprising the same
-
Paragraph 0366; 0371, (2021/11/30)
The present invention provides a novel compound and an organic light emitting device using the same.
Organic compound, electronic component comprising same and electronic device
-
Paragraph 0155; 0169-0171; 0172-0174, (2021/02/10)
The invention relates to an organic compound, an electronic component comprising the same and an electronic device, and belongs to the technical field of organic electroluminescence. According to theorganic electroluminescent material disclosed by the invention, the molecule contains an adamantane-phenanthrene structure, so that the electron density of a conjugated system is increased, and the hole conduction efficiency of the organic compound is further improved. When the organic electroluminescent material provided by the invention is applied to a functional layer of an organic electroluminescent device, the performance of the organic electroluminescent device can be improved.
Alumina-Mediated π-Activation of Alkynes
Akhmetov, Vladimir,Amsharov, Konstantin,Feofanov, Mikhail,Sharapa, Dmitry I.
, p. 15420 - 15426 (2021/09/30)
The ability to induce powerful atom-economic transformation of alkynes is the key feature of carbophilic π-Lewis acids such as gold- and platinum-based catalysts. The unique catalytic activity of these compounds in electrophilic activations of alkynes is explained through relativistic effects, enabling efficient orbital overlapping with π-systems. For this reason, it is believed that noble metals are indispensable components in the catalysis of such reactions. In this study, we report that thermally activated γ-Al2O3activates enynes, diynes, and arene-ynes in a manner enabling reactions that were typically assigned to the softest π-Lewis acids, while some were known to be triggered exclusively by gold catalysts. We demonstrate the scope of these transformations and suggest a qualitative explanation of this phenomenon based on the Dewar-Chatt-Duncanson model confirmed by density functional theory calculations.
