-nitro-promoted Ullmann ether synthesis : Application in the syntheses of K-13 and the isodityrosine unit of vancomycin
                                
                                    
                                        作者:A.V.Rama Rao、T.K. Chakraborty、K Laxma Reddy、A Srinivasa Rao                                    
                                    
                                        DOI:10.1016/s0040-4039(00)61289-3
                                    
                                    
                                        日期:1992.8
                                    
                                    A nitro group in the ortho-position of the aryl halide component facilitates Ullmann ether synthesis for the syntheses of all isodityrosine units present in wide variety of natural products, first time, on the basis of a common strategy.