89827-45-2Relevant articles and documents
Direct bromodeboronation of arylboronic acids with CuBr2 in water
Tang, Yan-Ling,Xia, Xian-Song,Gao, Jin-Chun,Li, Min-Xin,Mao, Ze-Wei
supporting information, (2021/01/05)
An efficient and practical method has been developed for the preparation of aryl bromides via the direct bromodeboronation of arylboronic acids with CuBr2 in water. This strategy provides several advantages, such as being ligand-free, base-free, high yielding, and functional group tolerant.
Regioselective arene homologation through rhenium-catalyzed deoxygenative aromatization of 7-oxabicyclo[2.2.1]hepta-2,5-dienes
Murai, Masahito,Ogita, Takuya,Takai, Kazuhiko
supporting information, p. 2332 - 2335 (2019/02/27)
Combined use of oxorhenium catalysts with triphenyl phosphite as an oxygen acceptor allowed efficient deoxygenative aromatization of oxabicyclic dienes. The reaction proceeded under neutral conditions and was compatible with various functional groups. Combining this deoxygenation with regioselective bromination and trapping of the generated aryne with furan resulted in benzannulative π-extension at the periphery of the PAHs. This enabled direct use of unfunctionalized PAHs for extension of π-conjugation. Iteration of the transformations increased the number of fused-benzene rings one at a time, which has the potential to alter the properties of PAHs by fine-tuning the degree of π-conjugation, shape, and edge topology.
AROMATIC HETEROCYCLIC DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT, ILLUMINATION DEVICE, AND DISPLAY DEVICE USING AROMATIC HETEROCYCLIC DERIVATIVE
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Paragraph 0166; 0167, (2018/03/01)
The present invention addresses the problem of providing a novel aromatic heterocyclic derivative, providing an organic EL element that uses the derivative and has high luminous efficiency, long luminescence life, and few changes over time when used under high temperatures, and providing a display device and an illumination device that are equipped with the organic El element. This aromatic heterocyclic derivative is characterized by having a specific structure which includes a carbazole ring.