Mild Addition of Nucleophiles to Pyridine-<i>N</i>-Oxides
作者:Allyn T. Londregan、Sandra Jennings、Liuqing Wei
DOI:10.1021/ol200352g
日期:2011.4.1
A general and facile one-pot procedure for the synthesis of 2-substituted pyridines from the corresponding pyridine-N-oxides and nucleophiles is presented as a mild alternative to SNAr chemistry. A variety of nucleophiles and heterocyclic-N-oxides participate effectively in this transformation, which uses the phosphonium salt, PyBroP, as a means of substrate activation.