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. ... 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. ... Although N-halosaccharins are more electrophilic ...