Solvent-Enabled Radical Selectivities: Controlled Syntheses of Sulfoxides and Sulfides
作者:Huamin Wang、Qingquan Lu、Chaohang Qian、Chao Liu、Wei Liu、Kai Chen、Aiwen Lei
DOI:10.1002/anie.201508729
日期:2016.1.18
Controlling selectivity is of central importance to radical chemistry. However, the highly reactive and unstable radical intermediates make this task especially challenging. Herein, a strategy for taming radical redox reactions has been developed, in which solvent‐bonding can alter the reactivity of the generated radical intermediates and thereby drastically alter the reaction selectivity at room temperature
控制选择性对自由基化学至关重要。但是,高反应性和不稳定的自由基中间体使这一任务特别具有挑战性。在此,已经开发出一种用于抑制自由基氧化还原反应的策略,其中溶剂键合可以改变生成的自由基中间体的反应性,从而在室温下极大地改变反应选择性。可以轻松获得各种β-氧亚砜和β-羟基硫化物,其中有些很难用现有方法合成。值得注意的是,在这些方法中金属催化剂或任何其他添加剂都是不必要的。