Comprehensive SummaryThe selective oxidative sulfonylation of alkenes with selenium sulfonate depended on the reaction conditions. The electrochemical C—H sulfonylation proceeded smoothly to afford (E)‐vinyl sulfones with good selectivity in an undivided cell without external oxidant. While aerobic trifunctionalization of alkenes occurred in the presence of KI in the air, which provides β‐keto selenosulfones via the formation of C—O, C—S, and C—Se bonds in one‐pot. Following control experiments, a plausible mechanism is proposed to rationalize the experimental results.
综合摘要
硒磺酸盐对烯的选择性氧化磺化作用取决于反应条件。电
化学 C-H 磺酰化反应进行顺利,在无外部氧化剂的不分流电池中以良好的选择性得到了 (E)-
乙烯基砜。烯烃的有氧三官能化反应则是在空气中有 KI 存在的情况下进行的,通过 C-O、C-S 和 C-Se 键的形成,一举生成了 β-酮
硒砜。根据对照实验,提出了一种合理的机理来解释实验结果。