Halogenated nucleoside derivatives were trifluoromethylated using a solution of a trifluoromethyl–coppercomplex, which was prepared by shaking trifluoromethyl iodide and copper powder in hexamethylphosphoric triamide and filtering off the excess of copper powder. The following trifluoromethylated nucleosides were obtained in moderate to good yields: 5-trifluoromethyl-uridine, -deoxyuridine, -cytidine
Synthesis of Trifluoromethylated Purine Ribonucleotides and Their Evaluation as <sup>19</sup>F NMR Probes
作者:Mikolaj Chrominski、Marek R. Baranowski、Sebastian Chmielinski、Joanna Kowalska、Jacek Jemielity
DOI:10.1021/acs.joc.9b03198
日期:2020.3.6
Further transformations based on phosphorimidazolide chemistry afford various CF3-substituted mono- and dinucleoside oligophosphates in good yields. The utility of the trifluoromethylated nucleotides as probes for 19F NMR-based real-time enzymatic reaction monitoring is demonstrated with three different human nucleotide hydrolases (Fhit, DcpS, and cNIIIB). Substrate and product(s) resonances were sufficiently
Au@ZnO Core–Shell: Scalable Photocatalytic Trifluoromethylation Using CF<sub>3</sub>CO<sub>2</sub>Na as an Inexpensive Reagent under Visible Light Irradiation
作者:Zahra Bazyar、Mona Hosseini-Sarvari
DOI:10.1021/acs.oprd.9b00225
日期:2019.11.15
difficult. Here, we report a new scalable and operationally simple trifluoromethylation reaction using sodium trifluoroacetate as a reagent and Au-modified ZnO as a photocatalyst under visible light irradiation. The reaction proceeds via trifluoromethylation of a broad range of aryl halides, arylboronic acids, and arene and heteroarene substrates. Some pharmaceutical and agrochemical compounds have