Organisch Chemisches Institut, Westfälische Wilhelms-Universität Münster , Corrensstraße 40, 48149 Münster, Germany.
J Org Chem. 2017 Nov 17;82(22):11703-11710. doi: 10.1021/acs.joc.7b00934. Epub 2017 Jun 1.
Radical trifluoromethylation of aryl N,N-dimethyl hydrazones using TBAI as an initiator and Togni's reagent as a trifluoromethyl radical source is described. Cascades proceed via electron-catalysis; this approach is generally more applicable to hydrazone perfluoroalkylation using perfluoroalkyl iodides as the radical precursors in combination with a base under visible-light initiation.
本文描述了使用 TBAI 作为引发剂和 Togni's 试剂作为三氟甲基自由基源,对芳基 N,N-二甲基腙进行的自由基三氟甲基化反应。级联反应通过电子催化进行;这种方法通常更适用于使用全氟碘代烷作为自由基前体,在可见光引发下与碱结合,对腙进行全氟烷基化。