I<sub>2</sub>/CF<sub>3</sub>CO<sub>2</sub>Ag-mediated iodolactonization of various allenoic acids to access versatile 6- to 9-membered ring vinylic iodolactones
Medium-sized lactones are important structural units, but their synthesis remains a great challenge. Herein, we report I2/CF3CO2Ag-mediated iodolactonization of allenoic acids to synthesize various 6- to 9-membered ring vinylic iodolactones in 16–89% yield. This protocol not only develops a new cyclization strategy of allenoic acids, but also provides highly functionalized medium-sized lactones containing
中等大小的内酯是重要的结构单元,但它们的合成仍然是一个巨大的挑战。在此,我们报道了 I 2 /CF 3 CO 2 Ag 介导的联烯酸碘内酯化反应,以 16-89% 的产率合成各种 6 至 9 元环乙烯基碘内酯。该方案不仅开发了一种新的联烯酸环化策略,而且还提供了含有烯烃和卤素基团的高度功能化的中等大小的内酯。