
%0 Journal Article
%A Pearson, AJ 
%T Protonation of tricarbonyldieneiron complexes: Acid-catalysed cyclization of tricarbonylmyrceneiron
%J Australian Journal of Chemistry
%D 1976/08/01
%V 29
%N 8
%P 1841-1844
%K 
%R https://doi.org/10.1071/CH9761841
%U https://www.publish.csiro.au/paper/CH9761841 
%X Treatment of tricarbonylmyrceneiron (1) with catalytic amounts of anhydrous tetrafluoroboric acid results in cyclization to give tricarbonyl(3,3-dimethyl-1-vinylcyclohexene)iron (4). Protonation of (4) with excess anhydrous tetrafluoroboric acid gives a tetracarbonylallyliron complex (5) which can be reduced with sodium borohydride to 1-ethylidene-3,3-dimethylcyclohexane (6). 
