(E)-6-(4-chlorophenyl)-2,4-dioxo-hex-5-enoic acid methyl ester 、
乙酸铵 以
甲醇 为溶剂,
以to afford (2Z,5E)-2-amino-6-(4-chlorophenyl)-4-oxo-hexa-2,5-dienoic acid methyl ester (9; 15.7 g, 74%) as a yellow solid的产率得到(2Z,5E)-2-amino-6-(4-chlorophenyl)-4-oxo-hexa-2,5-dienoic acid methyl ester