
%0 Journal Article
%A Coxon, JM 
%A Steel, PJ 
%A Coddington, JM 
%A Rae, ID 
%A Jones, AJ 
%T A study of methyl-substituted 2-Arylbicyclo[2,2,1]hept-2-yl cations
%J Australian Journal of Chemistry
%D 1978/06/01
%V 31
%N 6
%P 1223-1233
%K 
%R https://doi.org/10.1071/CH9781223
%U https://www.publish.csiro.au/paper/CH9781223 
%X The 13C and 1H N.M.R. spectra of a series of 2-aryl-1,7,7- trimethylbicyclo[2,2,1]hept-2-yl cations generated in strong acid at low temperature are reported. These cations reorganize at higher temperatures to 2-aryl-5,5,endo-6-trimethylbicyclo[2,2,1]hept-2-yl cations, thereby relieving the unfavourable C 1 methyl-C 2 aryl steric interaction present in the parent cations. At higher temperatures the bicyclic skeletons collapse to monocyclic allylic cations. 
