Electron‐impact induced hydrogen scrambling in cyclohexanol and methylcyclohexanols

Exact mass measurements and the mass spectral behavior of O‐deuterated cyclohexanols, coupled with a re‐evaluation of previously published data1,2, show that the hydrogen attached to oxygen undergoes partial scrambling with the 2, 3, 5 and 6 position ring hydrogens prior to or during the formation of the major primary fragment ions.