Non-stabilized pyridinium methylides were successfully generated from N-(siliymethyl)pyridone analogs via 1,4-silatropy and the resulting 1,3-dipoles were trapped by reaction with acetylenic and olefinic dipolarophiles to afford N-heteropolycycles. The method does not require the use of any additives or strong bases.
非稳定的
吡啶甲亚
胺类化合物成功地从N-(
硅甲基)
吡啶酮类似物通过1,4-
硅桥杂环化生成,所得1,3-偶极体通过与炔基和烯基双极性受体的反应捕获,从而得到N-杂
多环化合物。该方法无需使用任何添加剂或强碱。