Use of Aryl Chlorides as Electrophiles in Pd-Catalyzed Alkene Difunctionalization Reactions
作者:Brandon R. Rosen、Joshua E. Ney、John P. Wolfe
DOI:10.1021/jo100344k
日期:2010.4.16
The development of conditions that allow use of inexpensive aryl chlorides as electrophiles in Pd-catalyzed alkene carboamination and carboetherification reactions is described. A catalyst composed of Pd(OAc)2 and S-Phos minimizes N-arylation of the substrate and prevents formation of mixtures of regioisomeric products. A number of heterocycles, including pyrrolidines, isoxazolidines, tetrahydrofurans
描述了允许在Pd催化的烯烃碳氨化和碳醚化反应中使用廉价的芳基氯化物作为亲电子试剂的条件的开发。由Pd(OAc)2和S-Phos组成的催化剂可最大程度地减少底物的N-芳基化并防止形成区域异构产物的混合物。用这种方法可有效地产生许多杂环,包括吡咯烷,异恶唑烷,四氢呋喃和吡唑烷。