Environmentally benign catalyst: A PPh3‐modified Ru/CeO2 catalyst showed excellent catalytic activity toward directCHarylation by using various aryl chlorides in the reaction (see scheme). The catalyst was found to act heterogeneously and could be recycled without significant loss of activity.
对环境无害的催化剂:通过在反应中使用各种芳基氯化物,PPh 3改性的Ru / CeO 2催化剂对直接CH芳基化反应表现出出色的催化活性(请参阅方案)。发现该催化剂具有异质作用,可以循环使用而不会显着降低活性。
RuCl<sub>3</sub>⋅<i>x</i> H<sub>2</sub>O-Catalyzed Direct Arylation of Arenes with Aryl Chlorides in the Presence of Triphenylphosphine
作者:Ning Luo、Zhengkun Yu
DOI:10.1002/chem.200902612
日期:2010.1.18
A simple, efficient, and economically attractive catalytic system has been developed for the directarylation of arenes with arylchlorides with the RuCl3⋅xH2O/PPh3/Na2CO3/N‐methyl‐2‐pyrrolidone system (see scheme). A remarkable effect of the nature of the base was observed, with Na2CO3 giving the best results.
一个简单的,高效和经济上有吸引力的催化体系已被开发用于芳烃的与和的RuCl芳基氯的直接芳基化3 ⋅ X ħ 2 O / PPH 3 /钠2 CO 3 / Ñ甲基-2-吡咯烷酮系统(参见方案)。观察到了碱性质的显着影响,其中Na 2 CO 3给出了最佳结果。
Catalytic Coupling of C−H and C−I Bonds Using Pyridine As a Directing Group
作者:Dmitry Shabashov、Olafs Daugulis
DOI:10.1021/ol051255q
日期:2005.8.1
[GRAPHICS]A method for the palladium-catalyzed arylation of pyridines and pyrazoles has been developed. Both aliphatic and aromatic CA bonds may be functionalized using this method. A bromo substituent is tolerated on the aryl iodide coupling component.
Rhodium-Catalyzed C–H Bond Functionalization with Amides by Double C–H/C–N Bond Activation
作者:Guangrong Meng、Michal Szostak
DOI:10.1021/acs.orglett.6b00058
日期:2016.2.19
first C–Hbond functionalization with amides as the coupling partners via selective activation of the amide N–C bond using rhodium(I) catalysts under highly chemoselective conditions is reported. Notably, this report constitutes the first catalytic activation of the amide N–C(O) bond by rhodium. We expect that this concept will have broad implications for using amides as coupling partners for C–H activation