Skeletal rearrangement, 2,2-dimethylbutane

If methylpentanes and dimethylbutanes are able to give C5 or Cg cyclic products, this must involve some sort of skeletal rearrangement. Aromatiza-... 

Surprisingly, gold can also catalyze skeletal rearrangements of hydrocarbons for instance, the isomerization of 2,2-dimethylbutane to n-hexane has been achieved by Schmid with the aid of AU55 clusters on titanium dioxide [4c, 6] and the aromatization of the dispirocycle 1 to tetrahydronaphthalene 2 was achieved by de Meijere et al. in a reactor with gold surface at 100 °C in a few seconds (Scheme 1) [7]. 

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