Decarboxylative acylation of arenes with mandelic acid derivatives via palladium-catalyzed oxidative sp<sup>2</sup> C–H activation
作者:Xia Liu、Ze Yi、Jianhui Wang、Guiyan Liu
DOI:10.1039/c4ra14107e
日期:——
An efficient palladium catalyzed decarboxylative acylation of arenes with mandelic acid derivatives via oxidative sp2 C–H activation in the presence of tert-butyl hydroperoxide has been developed. The acylation reaction is assisted by a pyridine directing group. The starting materials are inexpensive and readily available. This method provides an economical and convenient way to synthesize aryl ketones
Decarboxylative Acylation of Arenes with α-Oxocarboxylic Acids via Palladium-Catalyzed C−H Activation
作者:Mingzong Li、Haibo Ge
DOI:10.1021/ol1012857
日期:2010.8.6
An efficient palladium-catalyzeddecarboxylative acylation of unactivated arenes with α-oxocarboxylic acids is reported. This method provides a novel access to aryl ketones.
Palladium-Catalyzed Synthesis of Aromatic Ketones and Isoindolobenzimidazoles<i>via</i>Selective Aromatic CH Bond Acylation
作者:Juyou Lu、Hao Zhang、Xiaowu Chen、Hongxia Liu、Yuyang Jiang、Hua Fu
DOI:10.1002/adsc.201200743
日期:2013.1.9
A convenient and efficient palladium-catalyzed synthesis of aromatic ketones and isoindolobenzimidazoles has been developed via selective aromatic CH bond acylation. The protocol uses palladium acetate as the catalyst, readily available carboxylicacids as the acylating reagents, trifluoroacetic anhydride as the activated agent of the acids, and the corresponding aromatic ketones and isoindolobenzimidazoles
Polystyrene-supported Pd(II) complex-catalysed carboacylation of 2-arylpyridines with alcohols via C─H bond activation under solvent-free conditions
作者:Pullaiah C. Perumgani、Sai Prathima Parvathaneni、Srinivas Keesara、Mohan Rao Mandapati
DOI:10.1002/aoc.3581
日期:2017.3
was used as an efficientcatalyst for the synthesis of aromatic ketones via ortho‐acylation of sp2 C─H bonds of 2‐arylpyridines with alcohols as effective coupling partners. The alcohols were oxidized with tert‐butyl hydroperoxide to their corresponding aldehydes in situ and efficiently coupled with 2‐arylpyridines to form aryl ketones undersolvent‐free conditions. Furthermore, catalyst C could be easily
Recyclable Pd(II)complex catalyzed oxidative sp2 CH bond acylation of 2-aryl pyridines with toluene derivatives
作者:Pullaiah C. Perumgani、Sai Prathima Parvathaneni、Srinivas Keesara、Mohan Rao Mandapati
DOI:10.1016/j.jorganchem.2016.08.028
日期:2016.11
complex C was synthesized and characterized using different spectroscopic techniques. In addition the catalytic efficiency of the Pd (II) complex C was evaluated for ortho-acylation of 2-aryl pyridines with toluene derivatives to form aryl ketones via cross dehydrogenative coupling. In this catalytic process toluene acts as an effective coupling partner upon sp3 CH bond oxidation for sp2 CH bond acylation
合成了可回收的聚合物锚定的Pd(II)复合物C,并使用不同的光谱技术对其进行了表征。此外,评估了Pd(II)配合物C的催化效率,用于2-芳基吡啶与甲苯衍生物的正酰化反应,通过交叉脱氢偶联形成芳基酮。在该催化过程中,甲苯在水上存在Pd(II)/ TBHP体系的情况下,在sp 3 C H键氧化作用下,作为2-芳基吡啶的sp 2 C H键酰化反应的有效偶联伙伴。此外,催化剂C 具有很高的稳定性,可以很容易地回收和再利用四个周期,而其活性和选择性却没有明显降低。