When p-ethyltoluene and p-propyltoluene react with methylcyclohexene in the presence of hydrogen fluoride and sulfuric acid, the main products formed result from a hydrogen transfer in which the aromatic hydrocarbons acted as a hydrogen donor and methylcyclohexene as a hydrogen acceptor.
[Zunszain, Patricia A.; Shah, Mala M.; Miscony, Zena; Javadzadeh-Tabatabaie, Mazyar; Haylett, Dennis G.; Ganellin, C. Robin Archiv der Pharmazie, 2002 , vol. 335, # 4 p. 159 - 166]
