thiophene-2-carboxaldehyde methylhydrazone 、
methyl (2Z)-2-[(4-bromophenyl)hydrazinylidene]-2-chloroacetate 在
三乙胺 作用下,
以
四氢呋喃 为溶剂,
以65%的产率得到5-(4-Bromo-phenyl)-2-methyl-6-thiophen-2-yl-1,2,5,6-tetrahydro-[1,2,4,5]tetrazine-3-carboxylic acid methyl ester