Perprotio-sulfonyl anion

In experiment 1, the perprotio-sulfonyl anion [H6]-A reacts to form the methylated per-protio-sulfone [H6]-B. It is not known whether this is the result of an intra- or an intermolecu-lar SN reaction. In experiment 2 of Figure 2.6, the sulfonyl anion [D6]-A, which is perdeuter-ated in both methyl groups, reacts to form the hexadeuterated methylsulfone [D6]-B. Even this result does not clarify whether the methylation is intra- or intermolecular. An explanation is not provided until the third experiment in Figure 2.6, a so-called crossover experiment. 

---

See also in sourсe #XX -- [ ]

---