A smart H-phosphonate-mediated synthetic strategy for the sulfonylation of heteroaromatic N-oxides has been developed in one pot under metal-free conditions at room temperature.
Base‐Mediated C4‐Selective C−H‐Sulfonylation of Pyridine**
作者:Marius Friedrich、Georg Manolikakes
DOI:10.1002/ejoc.202200915
日期:2022.9.13
A novel one-pot protocol for the C4-selective sulfonylation of pyridines is described. Contrary to previous methods positional selectivity is controlled by a tailored combination of base and solvent.