Silica Bonded S-Sulfonic Acid: A Recyclable Catalyst for the Synthesis of Quinoxalines at Room Temperature

Molecules

Khodabakhsh Niknam¹  Dariush Saberi¹ 

[1] Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran

关键词: silica bonded S-sulfonic acid;    quinoxalines;    1;    2-diamino compounds;    1;    2-dicarbonyl compounds;   

DOI  :  10.3390/molecules14051915

来源: mdpi

【 摘 要 】

The reaction of 3-mercaptopropylsilica (MPS) and chlorosulfonic acid in chloroform afforded silica bonded S-sulfonic acid (SBSSA), which was used as a catalyst for the room temperature synthesis of quinoxaline derivatives from 1,2-diamino compounds and 1,2-dicarbonyl compounds. The catalyst could be recycled and reused several times without any loss of efficiency.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.