The reactions of copper-dibromodifluoromethane-amide systems with alcohols
作者:James H. Clark、Martin A. McClinton、Robert J. Blade
DOI:10.1016/s0022-1139(00)82418-5
日期:1992.11
1,1,1-Trifluoro-2-arylethanes can be prepared by the trifluoromethyldehydroxylation of benzYl alcohols using the copper-dibromodifluoromethane-amide reaction system, although the yields are low. The mechanism of the reaction may involve chelation of the substrate to copper so that alpha-substituted benzyl alcohols and most other alcohols are unreactive.
Synthesis of Fluorinated Epoxides Opening the Way to New Hybrid Fluorocarbon-Hydrocarbon Surfactants
Two methods of epoxidation were investigated on a hybrid fluorocarbon-hydrocarbon olefin: RUCl3/bipyridine/NaIO4 and oxone/acetone. The best yield was obtained using the first method which was extended to the synthesis of new aromatic fluorinated epoxides with very good yields.