623157-28-8

Upstream product

• 4858-85-9 2,3-dichloropyrazine 
• 172975-69-8 3,5-dimethylphenyl boronic acid 

Downstream Products

• 1443732-28-2 5-(2,6-dimethylphenyl)-2,3-bis(3,5-dimethylphenyl)pyrazine 
• 1443732-20-4 2,3-bis(3,5-dimethylphenyl)-5-phenylpyrazine 
• 1443732-36-2 5-chloro-2,3-bis(3,5-dimethylphenyl)pyrazine 
• 1443732-35-1 2,3-bis(3,5-dimethylphenyl)pyrazin-1-oxide 

Relevant academic research and scientific papers

Synthesis Method of Organometallic Complex, Synthesis Method of Pyrazine Derivative, 5,6-Diaryl-2-Pyrazyl Triflate, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device

Provided is a 5,6-diaryl-2-pyrazyl triflate, its synthetic method, and a method for synthesizing an organometallic complex having a triarylpyrazine ligand from the 5,6-diaryl-2-pyrazyl triflate. The triflate is readily obtained from the corresponding 5,6-diarylpyrazin-2-ol, and the palladium-catalyzed coupling of the 5,6-diaryl-2-pyrazyl triflate with an arylboronic acid derivative leads to a high yield of a triarylpyrazine derivative having high purity. The use of the triarylpyrazine derivative in the reaction with a metal compound such as a metal chloride results in an ortho-metallated organometallic complex with high purity. The high purity of the organometallic complex contributes to the extremely high durability of a light-emitting element.

LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE

A light-emitting element having high external quantum efficiency is provided. A light-emitting element having a long lifetime is provided. A light-emitting layer is provided between a pair of electrodes. The light-emitting layer is a stack of a first light-emitting layer, which contains at least a first phosphorescent compound, a first organic compound having an electron-transport property, and a second organic compound having a hole-transport property and is provided on the anode side, and a second light-emitting layer, which contains at least a second phosphorescent compound and the first organic compound having an electron-transport property. A combination of the first organic compound and the second organic compound forms an exciplex.

Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device

As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an orga

Facile synthesis of diarylpyrazines using suzuki coupling of dichloropyrazines with aryl boronic acids

The palladium-catalyzed coupling of dichloropyrazines with aryl boronic acids is reported. The reaction proceeds smoothly under anaerobic conditions to give moderate to good yields of the corresponding diarylpyrazines.