ethyl 4-(4-methoxycarbonylphenyl)-6-methyl-2-oxo-3,4-dihydro-1H-pyridine-5-carboxylate 在
劳森试剂 作用下,
以
5,5-dimethyl-1,3-cyclohexadiene 为溶剂,
反应 0.17h,
以88%的产率得到ethyl 4-[4-(methoxycarbonyl)phenyl]-2-methyl-6-thioxo-1,4,5,6-tetrahydropyridine-3-carboxylate