Efficient and Mild Ullmann-Type N-Arylation of Amides, Carbamates, and Azoles in Water
作者:Maud Bollenbach、Pedro G. V. Aquino、João Xavier de Araújo-Júnior、Jean-Jacques Bourguignon、Frédéric Bihel、Christophe Salomé、Patrick Wagner、Martine Schmitt
DOI:10.1002/chem.201700832
日期:2017.10.4
A simple, sustainable, efficient, mild, and low‐cost protocol was developed for d‐glucose‐assisted Cu‐catalyzed Ullmann reactions in water for amides, carbamates, and nitrogen‐containing heterocycles. The reaction was compatible with diverse aryl/heteroaryl iodides, giving highly substituted pyridine, indole, or indazole rings. This method offers an attractive alternative to existing protocols, because
开发了一种简单,可持续,高效,温和且低成本的方案,用于葡萄糖在水中的酰胺,氨基甲酸酯和含氮杂环的d葡萄糖辅助的Ullmann反应。该反应与各种芳基/杂芳基碘化物相容,得到高度取代的吡啶,吲哚或吲唑环。该方法为现有方案提供了一种有吸引力的替代方法,因为该反应在水性介质中进行,在环境温度或接近环境温度的条件下进行,并提供高收率或高收率的N-芳基化产物。