ORGANIC ELECTROLUMINESCENCE DEVICE AND POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20190288216A1
公开(公告)日:2019-09-19
An organic electroluminescence device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region, wherein the emission layer includes a polycyclic compound represented by Formula 1. In Formula 1, L
11
and L
21
are each independently represented by Formula 2, and L
12
and L
22
are each independently represented by Formula 3.
Yttrium‐Catalyzed
<i>ortho</i>
‐Selective C−H Borylation of Pyridines with Pinacolborane
作者:Yuncong Luo、Shengjie Jiang、Xin Xu
DOI:10.1002/anie.202117750
日期:2022.5.16
The ortho-selective C−Hborylation of a wide range of pyridines using pinacolborane was achieved through yttrium catalysis. Notably, the possible hydroboration side reaction was effectively suppressed by using the proper ligand/metal combination. The resultant 2-pyridyl boronates were subjected to further transformations such as a Suzuki–Miyaura coupling or the Chan–Lam amination.