We demonstrate a straightforward synthesis of γ-lactams possessing an α-phosphorus ylide moiety from assembly of phosphines, N-tosyl aldimines and an enyne through an initial α(δâ²)-attack of phosphines to an enyne in up to 79% yield. The investigated multicomponent reaction tolerates a variety of triarylphosphines and electron-poor aldimines to give γ-lactams in one pot. One of the lactams, with the tri(p-tol)phosphine and 4-cyanophenyl moiety, exhibits fluorescence emission at 447 nm with a quantum yield of 0.11.
我们展示了一种简单的合成方法,通过初始的α(δ')-攻击,利用
磷、N-托烯基醛
亚胺和烯炔的组合,合成具有α-
磷耦基的γ-内酰胺,产率高达79%。所研究的多组分反应耐受多种三芳基
磷和电子贫乏的醛
亚胺,能在一个反应体系中生成γ-内酰胺。其中一种内酰胺,含有三(对甲基)
磷和4-
氰基苯基团,在447 nm处表现出荧光发射,量子产率为0.11。