Au–Pd alloy nanoparticles supported on layered double hydroxide for heterogeneously catalyzed aerobic oxidative dehydrogenation of cyclohexanols and cyclohexanones to phenols
from benzene has been increasing. Herein, we report a novel system for the synthesis of phenols through aerobicoxidative dehydrogenation of cyclohexanols and cyclohexanones, including ketone–alcohol (KA) oil, catalyzed by Mg–Al-layered double hydroxide (LDH)-supported Au–Pd alloy nanoparticles (Au–Pd/LDH). Alloying of Au and Pd and basicity of LDH are key factors in achieving the present transformation
Formal Direct Cross‐Coupling of Phenols with Amines
作者:Zhengwang Chen、Huiying Zeng、Simon A. Girard、Feng Wang、Ning Chen、Chao‐Jun Li
DOI:10.1002/anie.201506751
日期:2015.11.23
The transition‐metal‐catalyzedamination of arylhalides has been the most powerful method for the formation of arylamines over the past decades. Phenols are regarded as ideal alternatives to arylhalides as coupling partners in cross‐couplings. An efficient palladium‐catalyzed formal cross‐coupling of phenols with various amines and anilines has now been developed. A variety of substituted phenols
This invention relates to electrowetting fluids, the use of these fluids for the preparation of an electrowetting displays devices, and electrowetting display devices comprising such fluids.
这项发明涉及电致湿润液体,使用这些液体制备电致湿润显示器件,以及包括这些液体的电致湿润显示器件。
Manganese catalyzed <i>N</i>-alkylation of anilines with alcohols: ligand enabled selectivity
作者:Vinod G. Landge、Akash Mondal、Vinit Kumar、Avanashiappn Nandakumar、Ekambaram Balaraman
DOI:10.1039/c8ob01886c
日期:——
Ligand enabled Earth-abundant manganese catalyzedN-alkylation of amines with alcohols via a hydrogen auto-transfer strategy is reported. The choice of the ligand plays a significant role in the alcohol reactivity (aliphatic or aromatic) toward N-alkylation reactions.
Preparation of N-arylamines from 2-oxo-7-azobicyclo[4.1.0]heptanes
作者:M. Teresa Barros、Suvendu S. Dey、Christopher D. Maycock、Paula Rodrigues
DOI:10.1016/j.tet.2012.05.054
日期:2012.8
A wide range of N-phenylated secondary amines were prepared directly from 2-oxo-7-azobicyclo[4.1.0]heptanes using 4-nitrobenzoic acid as acid catalyst. The intermediate enol esters could also be isolated under similar conditions. A catalytic cycle is proposed.