Metal-free methylation of a pyridine N-oxide C–H bond was developed using peroxide as a methyl reagent under neat conditions. Pyridine N-oxide derivatives with various groups (e.g., Cl, NO2, and OCH3) were all suitable substrates.
使用过氧化物作为甲基试剂,在无溶剂条件下开发了对吡啶N-氧化物C-H键的无金属甲基化方法。具有各种基团(如Cl、NO2和OCH3)的吡啶N-氧化物衍生物均是合适的底物。