Oxidative Cleavage of β-Keto Sulfones via Nitrous Acid

Figure 2

The reported mechanistic pathways and [6] for the reaction of nitrous acid with oximes suggested the formation of sulfonyl-diketone 7 during the reaction of nitrous acid with oxime 4. The proposed mechanistic pathway of the reaction of nitrous acid with β-keto sulfones 3 through intermediate 1,2-oxazete 10, pathway C.