Trifluoromethylation of Propargylic Halides and Trifluoroacetates Using (Ph<sub>3</sub>P)<sub>3</sub>Cu(CF<sub>3</sub>) Reagent
作者:Tony S. N. Zhao、Kálmán J. Szabó
DOI:10.1021/ol3017287
日期:2012.8.3
A copper-mediatedtrifluoromethylation of propargylic halides and trifluoroacetates was performed with high allenyl or propargyl selectivity. The reaction proceeds smoothly with aliphatic and aromatic substituents bearing either electron-withdrawing or -supplying groups. Preliminary mechanistic results indicate an ionic mechanism involving nucleophilic transfer of the CF3 group from the Cu complex