potassium (E)-4-[4-(methoxycarbonyl)-1-(3-methoxyphenyl)-2-oxo-1H-pyrrol-3(2H)-ylidene]-1-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-olate 、
碘甲烷 以
N,N-二甲基甲酰胺 为溶剂,
反应 0.67h,
以92%的产率得到(E)-methyl 4-(2-methoxy-1-methyl-5-oxo-1H-imidazol-4(5H)-ylidene)-1-(3-methoxyphenyl)-5-oxo-4,5-dihydro-1H-pyrrole-3-carboxylate