An unprecedented Ir-catalyzed oxidative coupling of benzoicacids with trifluoromethylated alkynes was successfully developed to provide diverse trifluoromethylated isocoumarins in moderate to good yields. This new practical procedure was highlighted by mild reaction conditions, broad substrate scope, good regioselectivity, high efficiency, and easy operation.
The copper‐mediated trifluoromethylation of terminal alkynes with S‐(trifluoromethyl)diarylsulfonium salt has been carefully investigated. The reactions proceeded smoothly to afford trifluoromethylated acetylenes in moderate to good yields. This approach is a convenient method to synthesize a variety of functional trifluoromethylated acetylenes.
Amide Derivatives as Ion-Channel Ligands and Pharmaceutical Compositions and Methods of Using the Same
申请人:Kelly Michael G.
公开号:US20080300243A1
公开(公告)日:2008-12-04
Compounds are disclosed that have a formula represented by the following: The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, pain, inflammation, traumatic injury, and others.
Three in one: three valid pharmacophores (indole, pyranone and trifluoromethyl) were successfully combined into one molecule by rhodium-catalyzed regioselective annulation of indole carboxylicacids with unsymmetric internal trifluoromethylated alkynes.
Photoinduced selective perfluoroalkylation of terminal alkynes <i>via</i> electron donor–acceptor complexes
作者:Xiaolin Shi、Bo Yu、Xin Zhou、Yong Yang
DOI:10.1039/d4cc00105b
日期:——
terminal alkynes driven by the noncovalent interaction between a thymol anion and fluoroalkyl iodides. By precisely tuning the reaction solvent, a wide range of 37 structurally diverse perfluoroalkylated alkynes and alkenes, including ibuprofen, empagliflozin, galactose, isoxepac and indomethacin, were obtained in up to 92% yields. Mechanistic studies reveal the formation of EDA complexes between the