Amberlyst A-26, Mg-Al hydrotalcite, potassium fluoride absorbed on alumina, triethylamine and pyridine have been tested as base catalysts and reagents for the reaction of sulfonyl chlorides with thiols to prepare thiosulfonate S-esters. The reactions were performed under solvent-free conditions or with a minimum amount of solvent assisted by magnetic stirring, ultrasound irradiation and microwave irradiation. Ultrasound irradiation has good effects on the synthesis of sterically hindered thiosulfonate S-esters in solvent-free media as well as in a minimum amount of anhydrous diethyl ether.
|Tidsskrift||Phosphorus, Sulfur and Silicon and the Related Elements|
|Status||Udgivet - 2015|
- sulfonyl chlorides
- ultrasound irradiation
Pham, H. T., Nguyen, N-L. T., Duus, F., & Luu, T. X. T. (2015). Ultrasound-Accelerated Synthesis of Asymmetrical Thiosulfonate S-Esters by Base-Promoted Reaction of Sulfonyl Chlorides with Thiols. Phosphorus, Sulfur and Silicon and the Related Elements, 190(11), 1934-1941. https://doi.org/10.1080/10426507.2015.1034313