作者:Kimihiro Komeyama、Tetsuya Kashihara、Ken Takaki                                    
                                    
                                        DOI:10.1016/j.tetlet.2012.12.031
                                    
                                    
                                        日期:2013.2
                                    
                                    FeSO4 center dot 7H(2)O was proven to work as effective promoter for the direct arylation of benzoquinones with aryl boronic acids in the presence of K2S2O8. In the arylation, slow addition of iron solution was crucial to efficiently proceed with the reaction. Interestingly, the Fe-mediated arylation could be converted into a catalytic reaction by using hydroquinones, instead of benzoquinones, or addition of ascorbic acid. (C) 2012 Elsevier Ltd. All rights reserved.