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
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US20160108006A1
公开(公告)日:2016-04-21
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.
reaction of [1.1.1]propellane with N-heterocycles and disulfides is described. The mild conditions enabled the installation of the BCP motif in a wide variety of compounds in the absence of photocatalyst, additive and metal catalyst, with excellent functional group tolerance, This methodology opens a approach for the synthesis of potentially bioactive 1-arylthiol-3-heteroaryl bicyclo[1.1.1]pentanes in
make up an important class of BCP derivatives in drug discovery. Herein, we report the visible-light-mediated synthesis of cyanoisopropyl BCP-heteroaryls motifs from N-containing heterocycles, [1.1.1]propellane, and AIBN (2,2′-azobis(isobutyronitrile)) through three-component cascadereaction. Importantly, this protocol is compatible with pyrazinones, quinoxaline-2(1H)-one, azauracils, quinoline derivatives