anthraquinones were smoothly converted to either symmetrically or unsymmetrically substituted 9,10-bis(perfluoroalkyl)anthracene-9,10-diols by way of bistrifluoromethylation or successive trifluoromethylation-nucleophilic perfluoroalkylation, respectively, and these diols can be easily aromatized to form bis(perfluoroalkyl)anthracene derivatives in good yields by treatment with a mixture of CBr4 and PPh3. Further
Synthesis and characterization of novel trifluoromethyl-containing alcohols with Ruppert's reagent
作者:Rajendra P. Singh、Jean’ne M. Shreeve
DOI:10.1016/j.jfluchem.2011.07.020
日期:2012.1
corresponding trifluoromethylated silyl ether derivatives 3a–e in almost quantitative yields. Acid hydrolysis of 3a–e gave the desired trifluoromethylated alcohol derivatives (4a–e) in excellent isolated yields. Compounds were characterized by IR, NMR (1H, 19F, 13C NMR), GCMS, and elemental analysis. Single crystalX-raystructures of 4a and 4b support the proposed products.