Installation of protected ammonia equivalents onto aromatic & heteroaromatic rings in water enabled by micellar catalysis
作者:Nicholas A. Isley、Sebastian Dobarco、Bruce H. Lipshutz
DOI:10.1039/c3gc42188k
日期:——
A single set of conditions consisting of a palladium catalyst, a commercially available ligand, and a base, allow for several types of C–N bond constructions to be conducted in water with the aid of a commercially available “designer” surfactant (TPGS-750-M). Products containing a protected NH2 group in the form of a carbamate, sulfonamide, or urea can be fashioned starting with aryl or heteroaryl bromides, iodides, and in some cases, chlorides, as substrates. Reaction temperatures are in the range of room temperature to, at most, 50 °C, and result in essentially full conversion and good isolated yields.
一种包含钯催化剂、市售配体和碱的条件组合,可以在市售的“设计型”表面活性剂(TPGS-750-M)辅助下,在水中进行多种类型的C-N键构建。以含有氨基保护基(如氨基甲酸酯、磺酰胺或脲)的产物为目标,可以从芳基或杂芳基溴化物、碘化物,以及在某些情况下,氯化物作为起始原料。反应温度范围从室温到最高50°C,并且基本上实现了完全转化和良好的分离产率。