A practical synthesis of functionalized isoindolinones via [3 + 3] benzannulation of 1,3-bissulfonylpropenes and 4-arylmethylene-2,3-dioxopyrrolidines
作者:Xiang-zheng Tang、Jing-xuan zhou、Hua-ju Liang、Xue-jing Zhang、Ming Yan、Albert S.C. Chan
DOI:10.1016/j.tetlet.2018.11.074
日期:2019.1
straightforward synthesis of isoindolinones has been developed via a [3 + 3] benzannulation of 4-arylmethylene-2,3-dioxopyrrolidines and 1,3-bissulfonylpropenes (or 4-sulfonylcrotonates). A series of functionalized isoindolinones were obtained in excellent yields. The reaction could be carried out under mild conditions without transition metal catalyst. The finding provides a practical approach for the
通过4-芳基亚甲基-2,3-二氧吡咯烷和1,3-双磺酰基丙烯(或4-磺酰基巴豆酸酯)的[3 + 3]苯环已开发出异吲哚啉酮的直接合成方法。以优异的产率获得了一系列官能化的异吲哚啉酮。该反应可以在温和的条件下进行而无需过渡金属催化剂。该发现为制备具有潜在生物学活性的异吲哚啉酮衍生物提供了一种实用的方法。