Comment on “Activation of methane to CH3+: A selective industrial route to methanesulfonic acid”
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Díaz-Urrutia and Ott (Reports, 22 March 2019, p. 1326) report a selective conversion of methane to methanesulfonic acid that is proposed to occur by a cationic chain reaction in which CH3 + adds to sulfur trioxide (SO3) to form CH3-S(O)2O+ This mechanism is not plausible because of the solvent reactivity of CH3 +, the non-nucleophilicity of the sulfur atom of SO3, and the high energy of CH3-S(O)2O.
author list (cited authors)
Roytman, V. A., & Singleton, D. A.