A visible‐light inducedradicalsilylation to dibenzosiloles from biarylhydrosilanes is described. The products were obtained in satisfactory yields under mild and water/air compatible conditions, providing an efficient and practical method for the synthesis of difunctionalized siloles by using a cheap organic dye photocatalyst. The method is tolerated by a wide range of functional groups and has a
Palladium-catalyzed relay C–H functionalization to construct novel hybrid-arylcyclophosphorus ligand precursors
作者:Juan Wang、Peng-Bo Bai、Shang-Dong Yang
DOI:10.1016/j.cclet.2021.10.019
日期:2022.5
A new relay C–H functionalization of di([1,1′-biphenyl]-2-yl)phosphine oxide to obtain esterified and hydroxylated products with different hypervalent iodines as oxidants under palladium catalysis is disclosed. This reaction provides a more effective and concise strategy for the synthesis of novel structural hybrid-arylcyclophosphorus ligand precursors with a wide range of substrates and good functional
A Rh(III)-catalyzed C–Hactivation of boronic acid with aryl azide to obtain unsymmetric carbazoles, 1H-indoles, or indolines has been developed. The reaction constructs dual distinct C–N bonds via sp2/sp3 C–Hactivation and rhodium nitrene insertion. Synthetically, this approach represents an access to widely used carbazole derivatives. The practical application to CBP and unsymmetric TCTA derivatives
ORGANIC ELECTROLUMINESCENCE DEVICE AND AMINE COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20210126197A1
公开(公告)日:2021-04-29
An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and a plurality of functional layers between the first electrode and the second electrode, wherein at least one functional layer selected from the plurality of functional layers includes an amine compound represented by Formula 1 below, thereby showing high emission efficiency and improved life characteristics:
Silver-Catalyzed Arylation of (Hetero)arenes by Oxidative Decarboxylation of Aromatic Carboxylic Acids
作者:Jian Kan、Shijun Huang、Jin Lin、Min Zhang、Weiping Su
DOI:10.1002/anie.201408630
日期:2015.2.9
arylation of heteroarenes by oxidative decarboxylation of aromatic carboxylic acids. To address this challenge, the silver‐catalyzed intermolecular Minisci reaction of aromatic carboxylic acids was developed. With an inexpensive silver salt as a catalyst, this new reaction enables a variety of aromatic carboxylic acids to undergo decarboxylative coupling with electron‐deficient arenes or heteroarenes regardless