A Green Preparation of N-Chloro- and N-Bromosaccharin

Abstract

The reaction of the sodium salt of saccharin, potassium chloride or bromide and oxone® in water at room temperature for 24 h produced pure N-chloro- and N-bromosaccharin in 58% and 64% yield, respectively.

Keywords:

• Green chemistry
• Saccharin
• N-Halosaccharin

Acknowledgments

SPLS thanks CNPq for a fellowship. We thank Prof. W. Bruce Kover and Joel Jones Jr. for helpful discussions. We also thank Prof. Carlos A.S. Riehl for technical assistance in the N-halosaccharin titration.