Readily accessible N-sulfonylaminophthalimides were developed to be efficient sulfonyl radical precursors upon being treated with a base/oxidant under mild conditions. The method was applied to the oxysulfonylation of olefins, providing β-ketosulfones and isobenzofurans stereoselectively. On the basis of control experiments, density functional theory calculations, and the literature, a plausible radical
在温和条件下用碱/氧化剂处理后,容易获得的N-磺酰
氨基邻苯二甲
酰亚胺被开发为有效的磺酰自由基前体。该方法应用于烯烃的氧磺酰化,立体选择性地生成β-酮砜和
异苯并呋喃。在控制实验、密度泛函理论计算和文献的基础上,提出了一种合理的激进机制。这些发现为开发基于多种取代的N-
氨基邻苯二甲
酰亚胺的新型自由基前体提供了机会,这可能为产生各种自由基建立一种通用的温和方法。