Copper-catalyzed direct alkylation of heteroarenes
作者:Cédric Theunissen、Jianjun Wang、Gwilherm Evano
DOI:10.1039/c6sc05622a
日期:——
process is reported for the directalkylation of C–H bonds in heteroarenes, privileged scaffolds in many areas of science. This reaction is based on the copper-catalyzed addition of alkyl radicals generated from activated secondary and tertiary alkyl bromides to a wide range of arenes, including furans, thiophenes, pyrroles, and their benzo-fused derivatives, as well as coumarins and quinolinones.
An efficient and general process is reported for the photoinduced, copper-catalysed direct perfluoroalkylation of C–H bonds in a broad range of heteroarenes with commercially available perfluoroalkyl iodides. This redox neutral process is simply based on the use of [Cu(bcp)DPEPhos]PF6 as the photoredox catalyst in the presence of potassium acetate and smoothly operates at room temperature.