94546-54-0

Upstream product

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Relevant academic research and scientific papers

Phenanthrene compound and preparation method thereof Application and organic electroluminescent device

The invention belongs to the technical field of organic synthesis, and particularly relates to a phenanthrene compound as well as a preparation method and application thereof and an organic electroluminescent device. Compared with a device prepared from organic electroluminescent materials commonly used in the prior art, the device prepared from the phenanthrene 9 compounds has excellent comprehensive performance in starting voltage, current efficiency, service HOMO life LUMO and the like, and can meet the requirement and of the industrialization layer on the overall performance of the device. 3.

Preparation method of fused ring compound

The invention discloses a preparation method of a fused ring compound III. The preparation method comprises the following step: in a solvent and in the presence of palladium acetate, alkali and a ligand, carrying out a reaction shown in the specification on a compound I and a compound II to obtain a compound III. The preparation method disclosed by the invention is relatively good in compatibilitywith a substrate, various polycyclic aromatic hydrocarbon compounds can be simply obtained in a short period of time through convergent synthesis, and particularly, heteroatom-containing polycyclic aromatic hydrocarbon shows extremely excellent regioselectivity.

Sequential Cross-Coupling/Annulation of ortho-Vinyl Bromobenzenes with Aromatic Bromides for the Synthesis of Polycyclic Aromatic Compounds

A sequential cross-coupling/annulation of ortho-vinyl bromobenzenes with aromatic bromides was realized, providing a direct and modular approach to access polycyclic aromatic compounds. A vinyl-coordinated palladacycle was proposed as the key intermediate for this sequential process. Excellent chemoselectivity and regioselectivity were observed in this transformation. The practicability of this method is highlighted by its broad substrate scope, excellent functional group tolerance, and rich transformations associated with the obtained products.

COMPOUNDS FOR ELECTRONIC DEVICES

The present application relates to phenanthrene compounds of a particular formula (I), their use in electronic devices, electronic devices comprising such phenanthrene compounds, as well as processes for the synthesis of such phenanthrene compounds.