作者:Fehmi Damkaci、Esra Altay、Matthew Waldron、Michael A. Knopp、David Snow、Nicholas Massaro
DOI:10.1016/j.tetlet.2013.11.111
日期:2014.1
The use of N-phenylpicolinamide (NPPA) as a ligand in Ullmann-type homocoupling reactions of aryl iodides and bromides in common solvents, such as DMF and MeCN has been successfully demonstrated at room temperature. In addition, this work provided the first example of the homocoupling of an aryl chloride at 82 °C, which is a relatively low temperature when compared to regular Ullmann reaction temperatures
在室温下,已成功地证明了在常规溶剂(如DMF和MeCN)中,在芳基碘化物和溴化物的Ullmann型均偶联反应中,将N-苯基吡啶甲酰胺(NPPA)用作配体。此外,这项工作提供了芳基氯在82°C时均相偶联的第一个例子,与常规的Ullmann反应温度相比,这是一个相对较低的温度。此外,NPPA还成功地用于碱无热Suzuki反应中,包括中等收率的富电子和弱芳基卤化物与杂芳基硼酸的反应。