AbstractA direct electrosynthesis of cyclic isoureas from N‐allyl ureas and diselenides has been described. This protocol proceeds without any additional catalyst and oxidant, at room temperature under air, providing the desired products in 71–91% yield. In addition, the synthesis of cyclic isoureas containing five to seven‐membered rings has also been achieved by the employment of this strategy. On the basis of the mechanism experiments and previous research works, a probable mechanism is proposed.
摘要 描述了一种从 N-烯丙基脲和二硒化物直接电合成环状异脲的方法。该方法无需任何额外的催化剂和氧化剂,在室温和空气条件下进行,可获得收率为 71%-91% 的所需产物。此外,利用这种方法还可以合成含有五到七元环的环状异脲。在机理实验和以往研究工作的基础上,提出了一种可能的机理。