Tetraphenylporphyrin(TPP) is synthesized successfully by using 4-nitrobenzoic acid as the catalyst and xylene as the solvent based on Adler.

• 在四苯基卟啉的合成中，对Adler法进行了改进，采用对硝基苯甲酸代替丙酸作催化剂，并采用二甲苯为溶剂，通过分水，成功合成了四苯基卟啉。