Electrochemical Vicinal Difluorination of Alkenes: Scalable and Amenable to Electron‐Rich Substrates
作者:Sayad Doobary、Alexi T. Sedikides、Henry P. Caldora、Darren L. Poole、Alastair J. J. Lennox
DOI:10.1002/anie.201912119
日期:2020.1.13
oxidative difluorination of alkenes represents an important strategy for their preparation, yet current methods are limited in their alkene-types and tolerance of electron-rich, readily oxidized functionalities, as well as in their safety and scalability. Herein, we report a method for the difluorination of a number of unactivated alkene-types that is tolerant of electron-rich functionality, giving products
氟化烷基是生物活性化合物中的重要基序,对药代动力学,效能和构象有积极影响。烯烃的氧化二氟化代表了其制备的重要策略,但是目前的方法在其烯烃类型和对富电子,易氧化的官能团的耐受性以及其安全性和可扩展性方面受到限制。在此,我们报告了一种可耐受多种富电子功能的未活化烯烃类型二氟化的方法,可得到原本无法获得的产物。成功的关键是使用“细胞外”方法电化学生成高价碘介体,该方法可避免氧化性底物分解。可持续性更高的条件可在高达十亿磅的范围内带来出色的产量。