The First Applications of Carbene Ligands in Cross-Couplings of Alkyl Electrophiles: Sonogashira Reactions of Unactivated Alkyl Bromides and Iodides
作者:Matthias Eckhardt、Gregory C. Fu
DOI:10.1021/ja038177r
日期:2003.11.1
A Pd/N-heterocyclic carbene-based catalyst achieves the Sonogashira coupling of an array of functionalized, beta-hydrogen-containing alkyl bromides and iodides under mild conditions. By furnishing the first example of a nonphosphine-based palladium catalyst for cross-coupling unactivated alkyl electrophiles, this study provides an impetus for future efforts at catalyst development that extend beyond
基于 Pd/N-杂环卡宾的催化剂在温和条件下实现了一系列功能化、含 β-氢的烷基溴化物和碘化物的 Sonogashira 偶联。通过提供用于交叉偶联未活化烷基亲电试剂的非膦基钯催化剂的第一个例子,该研究为未来在膦配体以外的催化剂开发方面的努力提供了动力。