Synthesis method for acetonylsuccinic acid ester;

Synthesis of butyl propionate catalyzed by cerium sulfate supported on solica gel;

By using ceric sulfate as the catalyst, propanoic acid and butyl alcohol reacted to form butyl propionate.

By using potassium bisulfate as the catalyst, propanoic acid and butyl alcohol reacted to form butyl propionate.

Synthesis of n-butyl propionate catalyzed by ferric sulfate hydrate;

Synthesis of n-butyl propionate using SnCl_2 as catalyst;

Synthesis of n-butyl propionate on solid superacids SO_4~(2-)/Fe_2O_3

The different methods for synthesizing bicalutamide using bromoacetone, 2-methyl acryloyl chloride, 2-methyl methacrylate, 2,3-dihydroxy-2-methyl propanoic acid, pyruvic acid or pyruvate as raw materials were summarized respectively.

We have demonstrated that BrΦnsted acids are efficient catalysts for the transformation of pyruvate, aniline with aldehyde to give functional five-member N-heterocycle 3-Amino-1,5-dihydro-2H-pyrrol-2-ones via cascade reactions.