Photocatalytic Keto- and Amino-Trifluoromethylation of Alkenes
作者:Zheng Wang、Jin-Hong Lin、Ji-Chang Xiao
DOI:10.1021/acs.orglett.4c00447
日期:2024.3.8
Efforts to develop alternatives to triflicanhydride (Tf2O) as a trifluoromethylation reagent continue due to its limitations, including volatility, corrosiveness, and moisture sensitivity. Described herein is the use of a trifluoromethylsulfonylpyridinium salt (TFSP), easily obtained by a one-step reaction of Tf2O with 4-dimethylaminopyridine, as a reagent for the trifluoromethylative difunctionalization
Intermolecular Aminotrifluoromethylation of Alkenes by Visible-Light-Driven Photoredox Catalysis
作者:Yusuke Yasu、Takashi Koike、Munetaka Akita
DOI:10.1021/ol4006272
日期:2013.5.3
Intermolecular aminotrifluoromethylation of alkenes catalyzed by [Ru(bpy)3]2+ under visible light irradiation has been explored. The present photocatalytic protocol achieves highlyefficient and regioselectivedifunctionalization of C═Cbonds, leading to a variety of β-trifluoromethylamines. The reaction is applied to “late-stage aminotrifluoromethylation” of steroid and amino acid scaffolds.