Oxidation of alkanes, alkenes and alkyl groups

Potassium permanganate supported on silica causes the oxidative cleavage of carbon-carbon double bonds [120]. The reaction is largely unaffected by substituents on the double bond, even when electron withdrawing groups are present. Ozone adsorbed on silica gel oxidises hydrocarbons selectively to their corresponding alcohols [131]. 

Arylalkenes undergo oxidative rearrangement on treatment with TTN and KIO in methanol to give acetal products (e.g. equation 4,30) [128]. 

When tertiary-butyl hydroperoxide and selenium dioxide are adsorbed together on silica gel they produce a reagent which selectively oxidises a methyl group to an allylic alcohol without oxidation of other functional 

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