2'-chloro-4'-fluoro-5'-nitroacetanilide                                                                                                                                                              在
                                                                                                                                         
铂                                                                                                                                                                                                                               resultant filtrate   、                                                                                                  
water ethanol                                                                                                                                  作用下,
                                                                                                                以
                                                                                         Tetrahydrofuran ethyl acetate ethanol                                                                                  为溶剂,
                                                                                                                                                    反应 22.0h,
                                                                                                                以to give the title product as off-white plates (14.5 g, mp 176-178° C.)的产率得到5'-amino-2'-chloro-4'-fluoroacetanilide