一种通过非贵重钼催化的2的脱氧杂环化催化合成具有多种官能团的2-芳基-2H-苯并[ d ][1,2,3]三唑的新策略,收率良好至优异描述了-硝基偶氮苯。该转化的显着特点包括使用现成的底物、有价值的产品和易于扩大规模。机理研究表明该反应是通过Mo( VI )/Mo( IV )催化循环从2-硝基偶氮苯进行双重脱氧,形成2-芳基-2H-苯并[ d ][1,2,3 ]三唑-N 1 -氧化物或氮烯中间体。
Reported is the condensation between o‐arylenediamines and nitroarenes enabled by a cooperative action of acid and base, providing a direct entry to 2‐aryl‐2H‐benzotriazoles. The potential practicability of this methodology was demonstrated by 100 mmol‐scale reactions and the synthesis of serotonin/dopamine receptor ligand and human growth hormone.
Selective and Scalable Electrosynthesis of
<i>2H</i>
‐2‐(Aryl)‐benzo[
<i>d</i>
]‐1,2,3‐triazoles and Their N‐Oxides by Using Leaded Bronze Cathodes
作者:Tom Wirtanen、Eduardo Rodrigo、Siegfried R. Waldvogel
DOI:10.1002/chem.201905874
日期:2020.5.4
undivided cell under constant current conditions with a leaded bronze cathode and a glassy carbon anode. The product distribution between 2H-2-(aryl)benzo[d]-1,2,3-triazoles and their N-oxides can be guided by simply controlling the current density and the amount of the charge applied. The reaction tolerates several sensitive functional groups in reductive electrochemistry. The usefulness and the applicability
[Object] To provide an organic electroluminescence device including, in order to improve the device characteristics of the organic electroluminescence device, particularly, to absorb light having the wavelengths of from 400 nm to 410 nm from sunlight, not to affect a material inside the device, and to significantly improve the light extraction efficiency, a capping layer formed of a material that has a high absorption coefficient, a high refractive index, and an excellent stability, durability, and light resistance of a thin film, and does not absorb light in the blue, green, and red wavelength range.
[Solving Means] An organic electroluminescence device including at least an anode electrode, a hole transport layer, a light emitting layer, an electron transport layer, a cathode electrode, and a capping layer in the stated order, in which the capping layer includes a material having an extinction coefficient of not less than 0.3 at wavelengths of from 400 nm to 410 nm and an absorbance of not less than 0.2 at wavelengths of from 400 nm to 410 nm in an absorption spectrum of a concentration of 10-5 mol/l.
ORGANIC EL ELEMENT, AMINE COMPOUND HAVING BENZOAZOLE RING STRUCTURE, AND METHOD IN WHICH SAID AMINE COMPOUND IS USED IN CAPPING LAYER OF ORGANIC EL ELEMENT
申请人:Hodogaya Chemical Co., Ltd.
公开号:EP3740036A1
公开(公告)日:2020-11-18
An organic EL element having at least a positive electrode, a hole transport layer, a light-emitting layer, an electron transport layer, a negative electrode, and a capping layer in the stated order, wherein the capping layer contains an amine compound having a benzoazole ring structure represented by general formula (A-1).