Cesium Fluoride Catalyzed Trifluoromethylation of Esters, Aldehydes, and Ketones with (Trifluoromethyl)trimethylsilane
作者:Rajendra P. Singh、Ganfeng Cao、Robert L. Kirchmeier、Jean'ne M. Shreeve
DOI:10.1021/jo982494c
日期:1999.4.1
low reactivity of carboxylic esters toward (trifluoromethyl)trimethylsilane (TMS-CF(3)) was investigated. A universal cesiumfluoridecatalyzed procedure for nucleophilic trifluoromethylation was developed. At room temperature (25 degrees C), with catalytic amounts of cesiumfluoride, carboxylic esters were found to react to give the silyl ether intermediates, which afforded the trifluoromethyl ketones
Profiling the oxidative activation of DMSO-F<sub>6</sub> by pulse radiolysis and translational potential for radical C–H trifluoromethylation
作者:Nico Santschi、Benson J. Jelier、Samuel Stähelin、Thomas Nauser
DOI:10.1039/c9ob02119a
日期:——
activation of the perfluorinated analogue of dimethyl sulfoxide, DMSO-F6, by hydroxyl radicals efficiently produces trifluoromethyl radicals based on pulse radiolysis, laboratory scale experiments, and comparison of rates of reaction for analogous radical systems. In comparison to commercially available precursors, DMSO-F6 proved to be more stable, easier to handle and overall more convenient than leading
Bis(perfluoroalkyl)sulphur difluorides and bis(perfluoralkyl) sulphoxides
作者:Dennis T. Sauer、Jean'Ne M. Shreeve
DOI:10.1039/c29700001679
日期:——
Bis(perfluoroalkyl)sulphur difluorides result from the fluorination of bis(perfluoroalkyl)sulphides with chlorine monofluoride and react to give bis(perfluoroalkyl)sulphoxides.