The trifluoromethylation of chloroaromatics using the copper-CF2Br2 - dialkylamide reaction system
                                
                                    
                                        作者:James H Clark、James E Denness、Martin A McClinton、Andrew J Wynd                                    
                                    
                                        DOI:10.1016/s0022-1139(00)85007-1
                                    
                                    
                                        日期:1990.12
                                    
                                    The in situ generation of CuCF3 from the reaction of copper, dibromodifluoromethane and either N,N-dimethylformamide or N,N-dimethylacetamide (Burton's reagent) has been used for the direct substitution of chlorine by CF3 in a number of aromatic substrates.  Particular attention has been paid to the effects of ring substituents on the efficiency of reaction.