Light‐Mediated Formal Radical Deoxyfluorination of Tertiary Alcohols through Selective Single‐Electron Oxidation with TEDA
<sup>2+.</sup>
作者:Francisco José Aguilar Troyano、Frederic Ballaschk、Marcel Jaschinski、Yasemin Özkaya、Adrián Gómez‐Suárez
DOI:10.1002/chem.201903702
日期:2019.11.7
The synthesis of tertiary alkyl fluorides through a formal radical deoxyfluorination process is described herein. This light-mediated, catalyst-free methodology is fast and broadly applicable allowing for the preparation of C-F bonds from (hetero)benzylic, propargylic, and non-activated tertiary alcohol derivatives. Preliminary mechanistic studies support that the key step of the reaction is the single-electron
本文描述了通过正式的自由基脱氧氟化方法合成叔烷基氟。这种无光催化,无催化剂的方法是快速且广泛适用的,可用于从(杂)苄基,炔丙基和未活化的叔醇衍生物制备CF键。初步的机理研究支持该反应的关键步骤是草酸铯的单电子氧化(可从相应的叔醇中轻松获得)与原位生成的TEDA2 +。(TEDA:N-(氯甲基)三亚乙基二胺),一种衍生自Selectfluor®的自由基阳离子。