A novel, efficient, and mild synthetic route for the preparation of 2-aminopyridines via ruthenium-mediated [2 + 2 + 2] cycloaddition of α,ω-diynes and cyanamides has been developed. This atom-economical catalytic process demonstrated remarkable regioselectivities to access pyridine derivatives of high synthetic utility.
已开发出一种新颖,有效且温和的合成途径,用于通过
钌介导的[2 + 2 + 2]α,ω-二炔和
氰胺的环加成反应来制备2-
氨基吡啶。这种原子经济的催化过程显示出显着的区域选择性,可用于获得具有高合成效用的
吡啶衍生物。