With triethylamine phosphoric acid/nickeloussulfate as catalyst,the N-phenyl malemide was prepared from aniline and maleic anhydride by two-step method.

• 以顺酐和苯胺为原料,采用三乙胺/磷酸/硫酸镍为催化剂,通过两步法制得N-苯基马来酰亚胺。