[EN] ORGANIC COMPOUND WITH PYRIDINE AS CORE AND USE THEREOF<br/>[FR] COMPOSÉ ORGANIQUE À NOYAU PYRIDINE ET SON UTILISATION<br/>[ZH] 一种以氮杂苯为核心的有机化合物及其应用
Direct synthesis of 2-methylpyridines <i>via</i> I<sub>2</sub>-triggered [3 + 2 + 1] annulation of aryl methyl ketoxime acetates with triethylamine as the carbon source
A facile and efficient [3 + 2 + 1] annulation of aryl methyl ketoximeacetates and triethylamine for the synthesis of 2-methylpyridines was disclosed. This reaction demonstrated that I2 was effective in triggering N–O bond cleavage of oxime acetates generating imine radicals. It was noteworthy that this transformation employed triethylamine as the carbon source for the direct formation of pyridines