Fluorinated organiccompounds are becoming increasingly important in pharmaceuticals, agrochemicals and materials science. The introduction of trifluoromethoxy groups into new drugs and agrochemicals has attracted much attention due to their strongly electron-withdrawing nature and high lipophilicity. However, synthesis of trifluoromethoxylated organic molecules is difficult owing to the decomposition
fluorine-containing groups, trifluoromethylarylethers (ArOCF3) have unique properties in drug design and are difficult to be synthesized, and many different methods were developed to prepare them. A novel one-pot synthesis of o-iodine-aryl trifluoromethylethers (ArOCF3I) was described by the reaction of trifluoromethoxylation and iodination with trifluoromethylaryl sulfonates (TFMS) in this manuscript
Visible‐Light Photoredox‐Catalyzed and Copper‐Promoted Trifluoromethoxylation of Arenediazonium Tetrafluoroborates
作者:Shaoqiang Yang、Miao Chen、Pingping Tang
DOI:10.1002/anie.201901447
日期:2019.6.3
We report the development of photoredox‐catalyzed and copper‐promoted trifluoromethoxylation of arenediazonium tetrafluoroborates, with trifluoromethyl arylsulfonate (TFMS) as the trifluoromethoxylation reagent. This new method takes advantage of visible‐light photoredoxcatalysis to generate the aryl radical under mild conditions, combined with copper‐promoted selective trifluoromethoxylation. The
Silver-Catalyzed Trifluoromethoxylation of Aziridines
作者:Jingrui Xin、Xiangyu Deng、Pingping Tang
DOI:10.1021/acs.orglett.1c04226
日期:2022.1.28
We disclose a silver-catalyzed trifluoromethoxylation of N-tosyl aziridines with trifluoromethyl arylsulfonate. The protocol is characterized by its mild conditions, simple operations, and good chemo- and regioselectivity. In addition, the trifluoromethoxylation of trisubstituted aziridines could construct C-OCF3 quaternary centers exclusively, which is quite rare. This method unlocks a new catalytic