ethyl 6-(4-chlorophenyl)-2,4-dioxo-hex-5-enoate   、                                                                                      
乙酸铵                                                                                                                                                                                              以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                                                        以to provide (2Z,5E)-2-amino-6-(4-chlorophenyl)-4-oxo-hexa-2,5-dienoic acid ethyl ester (8; 47 g, 86%) as a yellow solid的产率得到(2Z,5E)-2-amino-6-(4-chlorophenyl)-4-oxo-hexa-2,5-dienoic acid ethyl ester