An efficient and convenient synthesis of various cyclic amidines has been achieved via iridium-catalyzed deoxygenative reduction of lactams with a silane followed by a one-pot cycloaddition reaction with sulfonyl azides. Using the novel tandem procedure, a large array of cyclic amidines bearing various sized rings were synthesized in good yields from readily available lactams. This methodology has
通过用
硅烷催化的内酰胺的
铱催化的内酰胺脱氧还原,然后与磺酰
叠氮化物的一锅环加成反应,已经实现了各种环状am的高效便捷合成。使用新颖的串联程序,从容易获得的内酰胺以高收率合成了各种带有各种大小环的环状am。该方法已成功用于带有内酰胺部分的复杂结构的后期多样化。