Abstract
A solvent‐free synthesis of N‐sulfonylimines from aldehydes with sulfonamides is described using ZrO2/S2O8 2− as catalyst under microwave irradiation. This method is fast and high yielding for a range of substrates.
Acknowledgment
The project was supported by National Natural Science Foundation of China (29872011 and 29572039), Educational Ministry of China, Educational Department of Hebei Province (990104), Science and Technology Commission of Hebei province.